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$388+ Cheap flights from Fremont, CA to Heathrow (LHR)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to London Heathrow are usually found in October or February, booked 64 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Fremont to Heathrow

Keep the following information in mind while searching for Fremont to Heathrow flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$606
(oojo)

One-way from

$388
(Jetabroad)

Popular in

June

Cheapest in

October

Average price

$690
Provider with most accurate pricing for San Francisco-London (LON) flight deals.
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Provider most trusted by Cheapflights users for San Francisco-London (LON) flights.
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From Fremont to London Heathrow
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One-way flight from Fremont to London Heathrow
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Highest demand for flights based on searches. 20% potential increase in price ($199 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Fremont to Heathrow

Cheapest flights from Fremont to Heathrow
Explore the most affordable flight options available from Fremont to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This oojo deal was found by Cheapflights users on 3/27. 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.
Tue 4/157:40 pmSFO - LHR
1 stop18h 00mScandinavian Airlines
Tue 5/69:05 pmLHR - SFO
2 stops27h 25mScandinavian Airlines
Deal found 3/27$606
This CrystalTravel deal was found by Cheapflights users on 3/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:35 pmSFO - LHR
1 stop12h 45mMultiple Airlines
Tue 4/158:45 amLHR - SFO
1 stop15h 25mMultiple Airlines
Deal found 3/27$609
This CrystalTravel deal was found by Cheapflights users on 3/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:05 pmSFO - LHR
Nonstop10h 20mVirgin Atlantic
Tue 4/156:30 amLHR - SFO
1 stop13h 15mVirgin Atlantic
Deal found 3/27$625
This Ticket deal was found by Cheapflights users on 3/27. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/64:05 pmSFO - LHR
Nonstop10h 20mKLM
Tue 4/2211:15 amLHR - SFO
Nonstop11h 00mKLM
Deal found 3/27$629
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Thu 9/254:20 pmSFO - LHR
1 stop21h 45mTAP AIR PORTUGAL
Tue 10/146:45 pmLHR - SFO
1 stop27h 50mTAP AIR PORTUGAL
Deal found 3/27$631
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/65:45 pmSFO - LHR
1 stop14h 10mAer Lingus
Tue 4/229:50 amLHR - SFO
1 stop14h 05mAer Lingus
Deal found 3/27$638
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Tue 4/227:30 pmSFO - LHR
Nonstop10h 25mAmerican Airlines
Wed 4/309:50 amLHR - SFO
1 stop13h 55mAmerican Airlines
Deal found 3/27$642
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Mon 4/287:30 pmSFO - LHR
Nonstop10h 25mBritish Airways
Wed 5/72:15 pmLHR - SFO
Nonstop11h 00mBritish Airways
Deal found 3/27$649
This United deal was found by Cheapflights users on 3/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/163:55 pmSFO - LHR
Nonstop10h 30mUnited Airlines
Wed 4/3012:10 pmLHR - SFO
1 stop36h 00mUnited Airlines
Deal found 3/28$650
This Delta deal was found by Cheapflights users on 3/28. 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.
Tue 4/84:05 pmSFO - LHR
Nonstop10h 20mDelta
Thu 4/176:30 amLHR - SFO
1 stop13h 15mDelta
Deal found 3/28$654
This Finnair deal was found by Cheapflights users on 3/27. 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.
Tue 4/84:20 pmSFO - LHR
Nonstop10h 35mFinnair
Tue 4/2910:45 amLHR - SFO
Nonstop11h 05mFinnair
Deal found 3/27$659
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Sun 4/64:35 pmSFO - LHR
1 stop12h 45mAir Canada
Tue 4/229:30 amLHR - SFO
2 stops18h 37mAir Canada
Deal found 3/27$662

Cheapflights Fare Finder

Customize your flight search to find flights from Fremont to Heathrow 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 March 28, 2025.
Use the filters below to find and compare flights from Fremont to London Heathrow Airport that are best for you.

Fly from

Fremont

Fly to

Heathrow

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 5/13

7:40 pm-5:40 pm

1 stop14h 00m

London Heathrow

Sun 5/18

7:30 pm-4:30 pm

1 stop29h 00m

$605

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 4/6

4:35 pm-1:20 pm

1 stop12h 45m

London Heathrow

Tue 4/22

2:10 pm-8:51 pm

1 stop14h 41m

$622

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 4/6

5:45 pm-3:55 pm

1 stop14h 10m

London Heathrow

Tue 4/22

8:50 am-3:55 pm

1 stop15h 05m

$623

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 4/6

4:05 pm-10:25 am

Nonstop10h 20m

London Heathrow

Tue 4/22

11:15 am-2:15 pm

Nonstop11h 00m

$625

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 4/29

7:30 pm-4:25 pm

1 stop36h 55m

London Heathrow

Tue 5/6

8:45 am-4:10 pm

1 stop15h 25m

$627

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 4/8

4:35 pm-1:20 pm

1 stop12h 45m

London Heathrow

Mon 4/14

8:05 pm-4:10 pm

1 stop28h 05m

$630

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 4/6

4:05 pm-10:25 am

Nonstop10h 20m

London Heathrow

Tue 4/22

11:15 am-2:15 pm

Nonstop11h 00m

$635

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 4/15

7:30 pm-1:55 pm

Nonstop10h 25m

London Heathrow

Tue 5/13

8:50 am-3:45 pm

1 stop14h 55m

$642

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 4/30

4:20 pm-10:55 am

Nonstop10h 35m

London Heathrow

Tue 5/13

10:45 am-1:50 pm

Nonstop11h 05m

$648

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 4/30

8:20 am-6:30 am

1 stop14h 10m

London Heathrow

Thu 5/8

8:40 am-4:10 pm

1 stop15h 30m

$650

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 33 results
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Best time to book a flight from Fremont to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Fremont 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 Fremont to London Heathrow Airport

How far ahead should I book a flight from Fremont to London Heathrow Airport?

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

Booking 64 days in advance of your planned departure date is, on average, the best time to get cheap flights from Fremont to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Fremont to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Fremont to London Heathrow Airport (average of $661). Flying from Fremont to London Heathrow Airport 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 FR8 to LHR?

Find hourly flight availability from Fremont to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

When flying from Fremont to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Fremont to London Heathrow Airport?

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

Travelers seeking maximum savings on their Fremont to London Heathrow Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated March 28, 2025.
Peruse reviews from past customers who have flown with Delta, Alaska Airlines and KLM from Fremont to London to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.
Alaska Airlines
8.0
Very good
9,798 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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 Fremont to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Fremont to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with Scandinavian Airlines, which is currently one of the cheapest options available, starting at $388. JetBlue flights start at $394 while deals on SWISS start at $395 one-way.

  • What are the most reliable airlines from Fremont to London Heathrow Airport?

    No one likes to see their flight delayed. When booking a flight from Fremont to London Heathrow Airport consider choosing United Airlines (86%), Iberia (86%) or American Airlines (84%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Fremont to London Heathrow Airport?

    Looking at all options, your cheapest flight can be booked for $400. While the most popular route (San Francisco - London Heathrow) can be booked for $506 on average our data indicates $2,960 when flying from Fremont to London Heathrow Airport.

  • Can I find deals for flights from Fremont to Heathrow that include hotel bookings?

    Yes. In addition to deals on Fremont to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Heathrow?

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

  • Can I find deals for business class flights from Fremont to Heathrow?

    Yes. Cheapflights offers flight deals from Fremont to Heathrow 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 Fremont to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Fremont to London Heathrow Airport (average of $661). Flying from Fremont to London Heathrow Airport 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 Fremont?

Book flights to Fremont if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Luton
Wembley
Harrow
Horley
Canterbury
Gatwick
Dover
Orpington
Watford
Milton Keynes
Northampton
Stratford-upon-Avon
Croydon
Borehamwood
Bromley
Folkestone
Ilford

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Top 10 airlines flying from Fremont to Heathrow

Discover the top 10 airlines that operate flights from Fremont to Heathrow. 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$316Average$576FlexibilityNo cancel feeOn-time77%
FinnairCheapest$465Average$663FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$491Average$597FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$555Average$696FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$557Average$800FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$572Average$732FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$584Average$847FlexibilityNo cancel feeOn-time62%
KLMCheapest$586Average$815FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$589Average$985FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$592Average$837FlexibilityNo cancel feeOn-time70%
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