London

$406+ Cheap flights from San Diego (SAN) to London (LON)

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LON
mar. 30 — abr. 61
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Cheapflights Tip: The best prices from San Diego to London are usually found in February or January, booked 70 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from San Diego to London

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated marzo 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$639
(Gotogate)

One-way from

$406
(Norse)

Popular in

June

Cheapest in

February

Average price

$732

Good round-trip deal

$770 or less

Good one-way deal

$590 or less
Provider with most accurate pricing for San Diego-London (LON) flight deals.
Provider most trusted by Cheapflights users for San Diego-London (LON) flights.
From San Diego to London (LON)
One-way flight from San Diego to London (LON)
Highest demand for flights based on searches. 22% potential increase in price ($251 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from San Diego to London (LON).
Price to beat on a one-way flight from San Diego to London (LON).

Find flight deals from San Diego to London

Cheapest flights from San Diego to London
Explore the most affordable flight options available from San Diego to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 25, 2025.

This Gotogate deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/77:50 pmSAN - LHR
1 stop33h 30mAir Canada
mié. 4/232:10 pmLHR - SAN
1 stop34h 28mAir Canada
Deal found 3/24$639
This Gotogate deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/77:50 pmSAN - LHR
1 stop33h 30mMultiple Airlines
lun. 4/148:05 pmLHR - SAN
2 stops30h 51mMultiple Airlines
Deal found 3/24$642
This Mytrip deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/59:08 pmSAN - LGW
3 stops25h 12mMultiple Airlines
lun. 5/1210:00 amLGW - SAN
2 stops29h 13mMultiple Airlines
Deal found 3/24$646
This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/237:12 amSAN - LGW
2 stops19h 28mAmerican Airlines
mié. 4/3010:40 amLGW - SAN
2 stops21h 16mAmerican Airlines
Deal found 3/24$648
This oojo deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/67:50 pmSAN - LHR
Nonstop10h 30mBritish Airways
lun. 10/204:10 pmLHR - SAN
2 stops35h 58mBritish Airways
Deal found 3/24$650
This Cheapflightsfares deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/217:50 pmSAN - LHR
Nonstop10h 30mIberia
mar. 9/309:15 amLHR - SAN
1 stop17h 44mIberia
Deal found 3/24$652
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/308:05 amSAN - LHR
1 stop18h 35mUnited Airlines
mié. 5/77:25 amLHR - SAN
1 stop16h 00mUnited Airlines
Deal found 3/24$659
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/302:30 pmSAN - LHR
1 stop15h 00mDelta
mié. 5/711:45 amLHR - SAN
1 stop32h 15mDelta
Deal found 3/24$660
This Finnair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/79:20 amSAN - LHR
1 stop13h 05mFinnair
mié. 4/302:55 pmLHR - SAN
Nonstop11h 05mFinnair
Deal found 3/23$664
This Lufthansa deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/235:15 pmSAN - LHR
1 stop14h 25mLufthansa
mié. 4/307:25 amLHR - SAN
1 stop16h 00mLufthansa
Deal found 3/24$676
This SWISS deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/275:15 pmSAN - LGW
2 stops17h 35mSWISS
lun. 11/106:45 pmLGW - SAN
2 stops34h 30mSWISS
Deal found 3/24$680
This KLM deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/152:20 pmSAN - LHR
1 stop14h 50mKLM
vie. 4/2512:25 pmLHR - SAN
1 stop16h 01mKLM
Deal found 3/25$683

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated marzo 25, 2025.
Use the filters below to find and compare flights from San Diego to London that are best for you.

Fly from

San Diego

Fly to

London

Route

Depart

Return

Price

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 4/7

7:50 pm-1:20 pm

1 stop33h 30m

London Heathrow

mié. 4/23

2:10 pm-4:38 pm

1 stop34h 28m

$639

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 4/7

7:50 pm-1:20 pm

1 stop33h 30m

London Heathrow

lun. 4/14

8:05 pm-6:56 pm

2 stops30h 51m

$642

San DiegoLondon

SAN - LGW

SANLGW

San Diego

lun. 5/5

9:08 pm-6:20 am

3 stops25h 12m

London Gatwick

lun. 5/12

10:00 am-7:13 am

2 stops29h 13m

$646

San DiegoLondon

SAN - LGW

SANLGW

San Diego

mié. 4/23

7:12 am-10:40 am

2 stops19h 28m

London Gatwick

mié. 4/30

10:40 am-11:56 pm

2 stops21h 16m

$648

San DiegoLondon

SAN - LHR

SANLHR

San Diego

dom. 9/21

7:50 pm-2:20 pm

Nonstop10h 30m

London Heathrow

mar. 9/30

9:15 am-6:59 pm

1 stop17h 44m

$652

San DiegoLondon

SAN - LHR

SANLHR

San Diego

mié. 4/30

8:05 am-10:40 am

1 stop18h 35m

London Heathrow

mié. 5/7

7:25 am-3:25 pm

1 stop16h 00m

$659

San DiegoLondon

SAN - LHR

SANLHR

San Diego

mié. 4/30

6:15 am-6:45 am

1 stop16h 30m

London Heathrow

jue. 5/8

6:30 am-12:00 pm

1 stop13h 30m

$660

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 4/28

10:27 am-7:20 am

1 stop12h 53m

London Heathrow

jue. 5/15

12:15 pm-7:16 pm

1 stop15h 01m

$663

San DiegoLondon

SAN - LHR

SANLHR

San Diego

lun. 4/7

9:20 am-6:25 am

1 stop13h 05m

London Heathrow

mié. 4/30

2:55 pm-6:00 pm

Nonstop11h 05m

$664

San DiegoLondon

SAN - LHR

SANLHR

San Diego

mar. 4/8

7:25 am-8:55 am

1 stop17h 30m

London Heathrow

jue. 4/24

6:30 am-4:11 pm

2 stops17h 41m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 54 results
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Compare providers for flights from San Diego to London

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 San Diego to London in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars
FlightnetworkPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust 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 San Diego-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-London 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 San Diego-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Diego to London flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to London trip
Airports
SAN

Plan to arrive at SAN two hours early for international flights to avoid stress from potential traffic congestion.

Read more about SANby Blane Bachelor
LHR

Take the Heathrow Express for the fastest route to central London from LHR, arriving at Paddington Station.

Read more about LHRby Ramsey Qubein
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from San Diego to London

Have a flexible travel schedule? Discover the best time to fly to London from San Diego 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.

Cheapflights Insights

Everything you need to know about your flight from San Diego to London

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to London. Price data was last updated on March 21, 2025.

The price you pay for your flight from San Diego to London may vary depending on when you book. For the best chance of a lower fare, look to book 70 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 San Diego to London?

Currently, November is the cheapest month in which you can book a flight from San Diego to London (average of $661). Flying from San Diego to London in June is currently the most expensive (average of $1,115). 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 SAN to LON?

Find hourly flight availability from San Diego to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 25, 2025.

A simple way to save on the total cost of your ticket is to fly from San Diego to London at noon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to London. Price data was last updated on December 16, 2024.

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

Weekly flight availability from San Diego to London

Explore weekly flight availability from San Diego to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated marzo 25, 2025.

The most flights from SAN to LON are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

Temperature in London by month

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

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July 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 39.2 F).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated marzo 25, 2025.
To help decide which airline to fly from San Diego to London, see what other customers have to say about Delta, Alaska Airlines and KLM. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Comfort

8.0

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from San Diego to London. 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 from for flights from San Diego to London?

    For a flight from San Diego to London, you will be flying from San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 6 outbound flights to London per day. 12 airlines have flights to London from San Diego on a regular basis.

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

    According to our current data, Air Canada ($639), American Airlines ($648), and Iberia ($654) offers the cheapest pricing from San Diego to London. Air Canada is 27% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airlines for a one-way flight from San Diego to London are Scandinavian Airlines ($433), Air Canada ($442), and JetBlue ($444).

  • What are the most popular routes from San Diego to London?

  • What are the most reliable airlines from San Diego to London?

    Consider American Airlines (76%), Alaska Airlines (76%) or Aer Lingus (76%) when booking your flight. These represent the most reliable airlines when flying from San Diego to London.

  • What are the cheapest flights from San Diego to London?

    Looking at all options, your cheapest flight can be booked for $478. While the most popular route (San Diego - London Heathrow) can be booked for $642 on average our data indicates $3,052 when flying from San Diego to London.

  • Where are the most common layover locations when flying from San Diego to London?

  • What are some popular things to do or see while on a layover in Seattle?

    The majority of Seattle visitors spend their time at Pike Place Market, Space Needle, and Seattle Waterfront. Those on a layover in Seattle interested in visiting Pike Place Market, Space Needle, or Seattle Waterfront can do so by traveling 11.2 mi, 12.0 mi, and 10.9 mi, respectively from Seattle/Tacoma Intl. Travelers can rent a car at Seattle/Tacoma Intl for an average daily rate of $45 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for San Diego to London flights?

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

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

  • How can I find direct flights from San Diego to London?

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

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

    Yes. Cheapflights offers flight deals from San Diego to London 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 San Diego to London?

    Currently, November is the cheapest month in which you can book a flight from San Diego to London (average of $661). Flying from San Diego to London in June is currently the most expensive (average of $1,115). 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Croydon
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Bromley
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Ilford
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Sutton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Diego to London

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from San Diego to London

Discover the top 10 airlines that operate flights from San Diego to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated marzo 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$580Average$879FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$590Average$783FlexibilityNo cancel feeOn-time76%
FinnairCheapest$595Average$692FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$597Average$917FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$602Average$920FlexibilityNo cancel feeOn-time69%
IberiaCheapest$603Average$792FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$623Average$898FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$648Average$982FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$651Average$967FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$665Average$964FlexibilityNo cancel feeOn-time67%
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