What are the cheapest airlines flying from London to San Francisco round-trip?

Lufthansa, at $517, was found to be the cheapest airline from London to San Francisco.Alternate airlines to your destination round-trip include United Airlines and SWISS. You may be able to fly from London to San Francisco for 24% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from London to San Francisco one-way?

The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $484. However, be on the lookout for offers from TAP AIR PORTUGAL and Vueling, as they are both options that can get you from London to San Francisco for a low price.

What is the cheapest day to fly from London to San Francisco?

Travelers seeking maximum savings on their London to San Francisco flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from London to San Francisco?

When deciding which route to take from London to San Francisco consider London Heathrow - San Francisco, London Gatwick - San Francisco or London City - San Francisco as they are the most popular.

What are the cheapest flights from London to San Francisco?

While on average a flight from London to San Francisco is generally $1,350, our data shows the cheapest flight currently is $527. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay $491 for that flight.

What are the most reliable airlines from London to San Francisco?

No one likes to see their flight delayed. When booking a flight from London to San Francisco consider choosing Singapore Airlines (79%), Air Canada (77%) or Austrian Airlines (77%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from London to San Francisco?

Consider American Airlines, British Airways or Delta when booking your flight. These represent the most popular airlines when flying from London to San Francisco.

What is the cheapest day to fly round-trip from London to San Francisco?

Saturday flights are found to be more expensive to fly from London to San Francisco. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Francisco.

How far in advance should I book a flight from London to San Francisco?

To save on the cost of your flight from London to San Francisco, book at least 43 days before your planned departure. Booking around this time can save you about 14% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $641 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $715.

What is the cheapest month to fly from London to San Francisco?

February can be a great time to fly to San Francisco from London with a flight ticket averaging about $687. Cheapflights users have found deals in the month of February for as cheap as $464. The most expensive prices can be found in the month of July.

Most accurate provider : When it comes to deals on London-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-San Francisco flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on London-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to San Francisco from London?

Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from London. Booking flights from London to San Francisco (SFO) should be relatively easy as there are 31 daily inbound flights from London from 11 different airlines.

Can I find deals for flights from London to San Francisco that include hotel bookings?

Yes. In addition to deals on London to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from London to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Francisco.

Can I find deals for business class flights from London to San Francisco?

Yes. Cheapflights offers flight deals from London to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$474+ Flights from London to San Francisco

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Find cheap flights from London to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from London to San Francisco are usually found in February or November, booked 83 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from London to San Francisco

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$517 (The Travel House)
One-way from	$474 (Mytrip)
Popular in	July
Cheapest in	February
Average price	$582
Good round-trip deal	$582 or less
Good one-way deal	$577 or less

Provider with most accurate pricing for London (LON)-San Francisco flight deals.

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Provider most trusted by Cheapflights users for London (LON)-San Francisco flights.

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From London (LON) to San Francisco

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One-way flight from London (LON) to San Francisco

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($157 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

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Price to beat on a round-trip flight from London (LON) to San Francisco.

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Price to beat on a one-way flight from London (LON) to San Francisco.

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Find flight deals from London to San Francisco

Cheapest flights from London to San Francisco
Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

Thu 5/17:25 amLHR - SFO

1 stop15h 10mLufthansa

Mon 5/510:50 pmSFO - LHR

1 stop13h 50mLufthansa

Deal found 2/22

$517

Wed 3/126:30 amLHR - SFO

2 stops35h 22mUnited Airlines

Wed 3/199:00 amSFO - LHR

1 stop21h 30mUnited Airlines

Deal found 2/21

$518

Tue 3/116:45 pmLGW - SFO

1 stop29h 40mSWISS

Tue 3/188:25 pmSFO - LGW

1 stop14h 25mSWISS

Deal found 2/21

$518

Thu 2/2711:40 amLHR - SFO

Nonstop11h 10mVirgin Atlantic

Wed 3/125:40 pmSFO - LHR

Nonstop10h 15mVirgin Atlantic

Deal found 2/21

$519

Sun 3/99:25 pmLGW - SFO

2 stops25h 20mTAP AIR PORTUGAL

Mon 3/175:40 pmSFO - LGW

2 stops19h 50mTAP AIR PORTUGAL

Deal found 2/20

$519

Thu 5/12:15 pmLHR - SFO

Nonstop11h 00mAmerican Airlines

Sun 5/117:20 pmSFO - LHR

Nonstop10h 25mAmerican Airlines

Deal found 2/21

$521

Sun 3/211:45 amLHR - SFO

Nonstop11h 15mBritish Airways

Mon 4/77:20 pmSFO - LHR

Nonstop10h 25mBritish Airways

Deal found 2/22

$523

Fri 3/148:55 amLHR - SFO

2 stops19h 47mAir Canada

Thu 3/201:00 pmSFO - LHR

1 stop14h 10mAir Canada

Deal found 2/22

$528

Tue 3/119:15 amLCY - SFO

1 stop15h 10mSWISS

Tue 3/188:25 pmSFO - LCY

1 stop15h 15mSWISS

Deal found 2/21

$531

Fri 2/283:20 pmLHR - SFO

Nonstop11h 25mMultiple Airlines

Sun 4/64:20 pmSFO - LHR

Nonstop10h 35mMultiple Airlines

Deal found 2/21

$532

Wed 3/128:55 amLHR - SFO

1 stop15h 30mSWISS

Tue 3/188:25 pmSFO - LHR

1 stop14h 25mSWISS

Deal found 2/21

$536

Thu 3/279:05 pmLHR - SFO

2 stops26h 35mScandinavian Airlines

Sun 3/306:20 pmSFO - LHR

1 stop15h 20mScandinavian Airlines

Deal found 2/21

$540

Best flights from London to San Francisco
Discover carefully curated flight deals from London to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 22, 2025.

Thu 5/17:25 amLHR - SFO

1 stop15h 10mLufthansa

Mon 5/510:50 pmSFO - LHR

1 stop13h 50mLufthansa

Deal found 2/22

$517

Wed 3/126:30 amLHR - SFO

2 stops35h 22mUnited Airlines

Wed 3/199:00 amSFO - LHR

1 stop21h 30mUnited Airlines

Deal found 2/21

$518

Tue 3/116:45 pmLGW - SFO

1 stop29h 40mSWISS

Tue 3/188:25 pmSFO - LGW

1 stop14h 25mSWISS

Deal found 2/21

$518

Sun 3/99:25 pmLGW - SFO

2 stops25h 20mTAP AIR PORTUGAL

Mon 3/175:40 pmSFO - LGW

2 stops19h 50mTAP AIR PORTUGAL

Deal found 2/20

$519

Fri 4/1110:45 amLHR - SFO

Nonstop11h 05mAmerican Airlines

Thu 4/247:20 pmSFO - LHR

Nonstop10h 25mAmerican Airlines

Deal found 2/21

$520

Thu 3/67:30 pmLHR - SFO

1 stop28h 10mScandinavian Airlines

Thu 3/136:30 pmSFO - LHR

2 stops17h 20mScandinavian Airlines

Deal found 2/20

$526

Fri 3/148:55 amLHR - SFO

2 stops19h 47mAir Canada

Thu 3/201:00 pmSFO - LHR

1 stop14h 10mAir Canada

Deal found 2/22

$528

Tue 3/44:55 pmLHR - SFO

1 stop15h 04mBritish Airways

Tue 3/1110:37 amSFO - LHR

1 stop13h 33mBritish Airways

Deal found 2/21

$529

Tue 3/118:55 amLHR - SFO

1 stop15h 30mMultiple Airlines

Tue 3/181:50 pmSFO - LHR

Nonstop10h 35mMultiple Airlines

Deal found 2/21

$545

Thu 3/611:45 amLHR - SFO

Nonstop11h 15mFinnair

Thu 3/136:30 pmSFO - LHR

Nonstop10h 30mFinnair

Deal found 2/20

$549

Sun 3/96:30 amLHR - SFO

1 stop13h 20mKLM

Tue 3/182:19 pmSFO - LHR

1 stop14h 21mKLM

Deal found 2/21

$560

Tue 3/46:30 amLHR - SFO

2 stops17h 17mDelta

Tue 3/1111:55 amSFO - LHR

1 stop16h 15mDelta

Deal found 2/21

$561

Last-minute flights from London to San Francisco
Discover last-minute flight deals from London to San Francisco. Data last updated February 22, 2025 and is based on user searches.

Thu 2/2711:40 amLHR - SFO

Nonstop11h 10mVirgin Atlantic

Wed 3/125:40 pmSFO - LHR

Nonstop10h 15mVirgin Atlantic

Deal found 2/21

$519

Thu 2/276:40 amLHR - SFO

1 stop17h 00mScandinavian Airlines

Wed 3/126:30 pmSFO - LHR

1 stop14h 30mScandinavian Airlines

Deal found 2/21

$534

Thu 2/277:55 pmLHR - SFO

1 stop28h 20mTAP AIR PORTUGAL

Mon 3/34:40 pmSFO - LHR

1 stop16h 50mTAP AIR PORTUGAL

Deal found 2/22

$541

Thu 2/273:55 pmLGW - SFO

1 stop32h 20mTAP AIR PORTUGAL

Mon 3/34:40 pmSFO - LGW

1 stop15h 05mTAP AIR PORTUGAL

Deal found 2/22

$541

Fri 2/2811:45 amLHR - SFO

Nonstop11h 15mBritish Airways

Thu 3/66:00 pmSFO - LHR

1 stop13h 25mBritish Airways

Deal found 2/21

$522

Fri 2/2810:05 amLHR - SFO

Nonstop11h 10mLufthansa

Fri 3/712:50 pmSFO - LHR

Nonstop10h 35mLufthansa

Deal found 2/21

$553

Fri 2/283:20 pmLHR - SFO

Nonstop11h 25mMultiple Airlines

Sun 4/64:20 pmSFO - LHR

Nonstop10h 35mMultiple Airlines

Deal found 2/21

$532

Sat 3/14:55 pmLHR - SFO

1 stop15h 04mMultiple Airlines

Sat 3/296:00 pmSFO - LHR

1 stop14h 05mMultiple Airlines

Deal found 2/21

$527

Sun 3/26:50 amLHR - SFO

2 stops20h 40mUnited Airlines

Sun 3/166:25 pmSFO - LHR

Nonstop10h 35mUnited Airlines

Deal found 2/22

$535

Sun 3/26:30 amLHR - SFO

1 stop13h 20mDelta

Sat 3/292:10 pmSFO - LHR

1 stop15h 20mDelta

Deal found 2/22

$557

Sun 3/211:45 amLHR - SFO

Nonstop11h 15mBritish Airways

Mon 4/77:20 pmSFO - LHR

Nonstop10h 25mBritish Airways

Deal found 2/22

$523

Mon 3/39:25 amLHR - SFO

1 stop16h 07mFinnair

Sat 3/89:52 pmSFO - LHR

1 stop16h 18mFinnair

Deal found 2/22

$530

One-way flights from London to San Francisco
Search for one-way flight options from London to San Francisco. Find affordable one-way fares based on user searches. Data last updated February 22, 2025.

Sun 3/306:25 amSTN - SFO

2 stops23h 12mMultiple Airlines

Deal found 2/20

$474

Wed 3/52:50 pmLHR - SFO

2 stops27h 22mMultiple Airlines

Deal found 2/20

$476

Mon 3/249:00 pmLGW - SFO

2 stops55h 10mMultiple Airlines

Deal found 2/21

$476

Wed 2/2610:40 pmLTN - SFO

3 stops53h 30mMultiple Airlines

Deal found 2/21

$484

Wed 4/22:10 pmLHR - SFO

1 stop30h 56mWestJet

Deal found 2/21

$484

Mon 3/245:00 pmLCY - SFO

3 stops51h 33mMultiple Airlines

Deal found 2/21

$484

Sat 6/710:45 amLGW - SFO

2 stops38h 30mWestJet

Deal found 2/20

$485

Sat 3/87:55 pmSEN - SFO

2 stops32h 15mMultiple Airlines

Deal found 2/21

$513

Sun 3/27:55 pmLHR - SFO

1 stop26h 50mTAP AIR PORTUGAL

Deal found 2/20

$515

Fri 2/284:40 pmLGW - SFO

1 stop30h 15mTAP AIR PORTUGAL

Deal found 2/21

$521

Tue 4/87:25 amLGW - SFO

1 stop18h 35mVueling

Deal found 2/21

$523

Thu 5/1510:45 amLHR - SFO

Nonstop11h 05mBritish Airways

Deal found 2/21

$542

Find flights from London to San Francisco within your budget

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 5/1

7:25 am-2:35 pm

1 stop15h 10m

San Francisco

Mon 5/5

10:50 pm-8:40 pm

1 stop13h 50m

$517

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 3/12

6:30 am-10:52 am

2 stops35h 22m

San Francisco

Wed 3/19

9:00 am-1:30 pm

1 stop21h 30m

$518

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 3/11

6:45 pm-5:25 pm

1 stop29h 40m

San Francisco

Tue 3/18

8:25 pm-5:50 pm

1 stop14h 25m

$518

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Sun 3/9

9:25 pm-3:45 pm

2 stops25h 20m

San Francisco

Mon 3/17

5:40 pm-8:30 pm

2 stops19h 50m

$519

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 4/11

10:45 am-1:50 pm

Nonstop11h 05m

San Francisco

Thu 4/24

7:20 pm-1:45 pm

Nonstop10h 25m

$520

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 3/6

7:30 pm-3:40 pm

1 stop28h 10m

San Francisco

Thu 3/13

6:30 pm-6:50 pm

2 stops17h 20m

$526

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 3/14

8:55 am-9:42 pm

2 stops19h 47m

San Francisco

Thu 3/20

1:00 pm-10:10 am

1 stop14h 10m

$528

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 3/4

4:55 pm-11:59 pm

1 stop15h 04m

San Francisco

Tue 3/11

10:37 am-7:10 am

1 stop13h 33m

$529

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Tue 3/11

9:15 am-5:25 pm

1 stop15h 10m

San Francisco

Tue 3/18

8:25 pm-6:40 pm

1 stop15h 15m

$531

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 3/13

10:05 am-2:15 pm

Nonstop11h 10m

San Francisco

Sun 3/16

6:25 pm-12:00 pm

Nonstop10h 35m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 58 results

...

Compare providers for flights from London to San Francisco

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to San Francisco in February.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars
ScholarTrip	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on London-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-San Francisco flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on London-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from London to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from London with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from London to San Francisco

Get recent, data-driven insights about flights from London to San Francisco including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to San Francisco?

The price you pay for your flight from London to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 42 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from London to San Francisco?

Currently, January is the cheapest month in which you can book a flight from London to San Francisco (average of $276). Flying from London to San Francisco in June is currently the most expensive (average of $403). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to SFO?

It’s optimal to fly from London to San Francisco in the evening. By choosing this option you can save up to 9% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from London to San Francisco

The most flights from LON to SFO are scheduled on a Thursday (33 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (26 on average).

Rainfall in San Francisco by month

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

See what other customers who have flown with Delta, Air New Zealand and KLM from London to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

8,203 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air New Zealand

7.9

Good

460 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,332 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Transat

7.8

Good

382 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,271 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly into for flights to San Francisco from London?
Located just 11.8 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from London. Booking flights from London to San Francisco (SFO) should be relatively easy as there are 31 daily inbound flights from London from 11 different airlines.
What are the cheapest airlines flying from London to San Francisco round-trip?
Lufthansa, at $517, was found to be the cheapest airline from London to San Francisco.Alternate airlines to your destination round-trip include United Airlines and SWISS. You may be able to fly from London to San Francisco for 24% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from London to San Francisco one-way?
The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $484. However, be on the lookout for offers from TAP AIR PORTUGAL and Vueling, as they are both options that can get you from London to San Francisco for a low price.
What are the most popular routes from London to San Francisco?
When deciding which route to take from London to San Francisco consider London Heathrow - San Francisco, London Gatwick - San Francisco or London City - San Francisco as they are the most popular.
What are the most reliable airlines from London to San Francisco?
No one likes to see their flight delayed. When booking a flight from London to San Francisco consider choosing Singapore Airlines (79%), Air Canada (77%) or Austrian Airlines (77%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from London to San Francisco?
While on average a flight from London to San Francisco is generally $1,350, our data shows the cheapest flight currently is $527. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay $491 for that flight.
Can I find deals for flights from London to San Francisco that include hotel bookings?
Yes. In addition to deals on London to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from London to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Francisco.
Can I find deals for business class flights from London to San Francisco?
Yes. Cheapflights offers flight deals from London to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to San Francisco?
Currently, January is the cheapest month in which you can book a flight from London to San Francisco (average of $276). Flying from London to San Francisco in June is currently the most expensive (average of $403). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Roseville

Mountain View

Turlock

Santa Cruz

Fairfield

Manteca

Sausalito

Watsonville

Hayward

Richmond

Hollister

South San Francisco

Antioch

Milpitas

Vallejo

Newark

Alameda

Campbell

Pacific Grove

Sunnyvale

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from London to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
Austrian Airlines	Cheapest$500	Average$704	FlexibilityNo cancel fee	On-time78%
British Airways	Cheapest$513	Average$699	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$519	Average$718	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$525	Average$689	FlexibilityNo cancel fee	On-time76%
American Airlines	Cheapest$544	Average$744	FlexibilityNo cancel fee	On-time71%
Scandinavian Airlines	Cheapest$545	Average$680	FlexibilityNo cancel fee	On-time77%
Brussels Airlines	Cheapest$546	Average$653	FlexibilityNo cancel fee	On-timeN/A
Virgin Atlantic	Cheapest$553	Average$761	FlexibilityNo cancel fee	On-time72%
United Airlines	Cheapest$566	Average$728	FlexibilityNo cancel fee	On-time69%
Iberia	Cheapest$602	Average$741	FlexibilityNo cancel fee	On-time77%

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$474+ Cheap flights from London (LON) to San Francisco (SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/30. Fares are subject to change and may not be available on all flights or dates of travel.

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The best prices from London to San Francisco are usually found in February or November, booked 83 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from London to San Francisco

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Find flight deals from London to San Francisco

Cheapest flights from London to San FranciscoExplore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

Find flights from London to San Francisco within your budget

Compare providers for flights from London to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to San Francisco in February.

Best time to book a flight from London to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from London with our price prediction graph.

Travel insights for flights from London to San Francisco

Get recent, data-driven insights about flights from London to San Francisco including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London to San Francisco?

Use this chart to determine the optimal time to book a round-trip flight from London to San Francisco. Price data was last updated on February 14, 2025.

What is the cheapest month to book a flight from London to San Francisco?

What is the cheapest time of day to fly from LON to SFO?

Find hourly flight availability from London to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

Weekly flight availability from London to San Francisco

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

Reviews of airlines servicing San Francisco

See what other customers who have flown with Delta, Air New Zealand and KLM from London to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Francisco from London?

What are the cheapest airlines flying from London to San Francisco round-trip?

What are the cheapest airlines to fly from London to San Francisco one-way?

What are the most popular routes from London to San Francisco?

What are the most reliable airlines from London to San Francisco?

What are the cheapest flights from London to San Francisco?

Can I find deals for flights from London to San Francisco that include hotel bookings?

How can I find direct flights from London to San Francisco?

Can I find deals for business class flights from London to San Francisco?

What is the cheapest month to book a flight from London to San Francisco?

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Alternative routes for London to San Francisco

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Top 10 airlines flying from London to San Francisco

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Cheapest flights from London to San Francisco
Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.