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$322+ Cheap flights from Fremont, CA 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to London are usually found in October or September, booked 38 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Fremont to London

Keep the following information in mind while searching for Fremont to London flight deals. Data was last updated July 30, 2025.

Round-trip from

$520
(American Airlines)

One-way from

$322
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$903
From Fremont to London (LON)
Search Deals
One-way flight from Fremont to London (LON)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($151 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Fremont to London

Cheapest flights from Fremont to London
Explore the most affordable flight options available from Fremont to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/133:51 pmSFO - LHR
1 stop14h 34mAmerican Airlines
Wed 8/2710:45 amLHR - SFO
Nonstop11h 05mAmerican Airlines
Deal found 7/29$520
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/85:50 amSFO - LGW
1 stop21h 00mMultiple Airlines
Mon 9/229:50 amLGW - SFO
1 stop16h 17mMultiple Airlines
Deal found 7/29$521
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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.
Tue 9/164:30 pmSFO - LHR
Nonstop10h 25mBritish Airways
Tue 9/232:15 pmLHR - SFO
Nonstop11h 10mBritish Airways
Deal found 7/30$521
This LEVEL deal was found by Cheapflights users on 7/29. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/218:10 pmSFO - LGW
1 stop28h 20mLEVEL
Mon 9/291:00 pmLGW - SFO
1 stop37h 10mLEVEL
Deal found 7/29$522
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 9/168:30 amSFO - LHR
1 stop17h 05mUnited Airlines
Wed 9/248:40 amLHR - SFO
1 stop15h 55mUnited Airlines
Deal found 7/30$522
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:30 amSFO - LHR
1 stop15h 05mMultiple Airlines
Tue 9/238:45 amLHR - SFO
1 stop15h 25mMultiple Airlines
Deal found 7/29$523
This Air Canada deal was found by Cheapflights users on 7/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/197:30 amSFO - LHR
2 stops18h 30mAir Canada
Fri 8/299:30 amLHR - SFO
1 stop20h 10mAir Canada
Deal found 7/28$524
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:30 pmSFO - LCY
1 stop13h 45mSWISS
Wed 8/209:25 amLCY - SFO
1 stop14h 45mSWISS
Deal found 7/28$525
This Iberia deal was found by Cheapflights users on 7/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:45 pmSFO - LGW
1 stop33h 10mIberia
Wed 8/278:40 pmLGW - SFO
1 stop27h 30mIberia
Deal found 7/28$525
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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.
Wed 8/138:00 amSFO - LHR
1 stop14h 25mIberia
Wed 8/2712:15 pmLHR - SFO
1 stop15h 36mIberia
Deal found 7/29$525
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:30 pmSFO - LHR
1 stop14h 20mSWISS
Mon 9/228:05 pmLHR - SFO
1 stop28h 05mSWISS
Deal found 7/28$526
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/238:25 amSFO - STN
2 stops21h 35mMultiple Airlines
Tue 12/22:30 pmSTN - SFO
2 stops34h 00mMultiple Airlines
Deal found 7/28$527

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont 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 July 30, 2025.
Use the filters below to find and compare flights from Fremont to London that are best for you.

Fly from

Fremont

Fly to

London

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 8/13

3:51 pm-2:25 pm

1 stop14h 34m

London Heathrow

Wed 8/27

10:45 am-1:50 pm

Nonstop11h 05m

$520

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 9/8

5:50 am-10:50 am

1 stop21h 00m

London Gatwick

Mon 9/22

9:50 am-6:07 pm

1 stop16h 17m

$521

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 9/16

4:30 pm-10:55 am

Nonstop10h 25m

London Heathrow

Tue 9/23

2:15 pm-5:25 pm

Nonstop11h 10m

$521

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sun 9/21

8:10 pm-8:30 am

1 stop28h 20m

London Gatwick

Mon 9/29

1:00 pm-6:10 pm

1 stop37h 10m

$522

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 9/16

8:30 am-9:35 am

1 stop17h 05m

London Heathrow

Wed 9/24

8:40 am-4:35 pm

1 stop15h 55m

$522

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 9/16

7:30 am-6:35 am

1 stop15h 05m

London Heathrow

Tue 9/23

8:45 am-4:10 pm

1 stop15h 25m

$523

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 8/19

7:30 am-10:00 am

2 stops18h 30m

London Heathrow

Thu 8/28

9:30 am-7:57 pm

1 stop18h 27m

$524

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Tue 8/12

5:45 pm-10:55 am

1 stop33h 10m

London Gatwick

Wed 8/27

8:40 pm-4:10 pm

1 stop27h 30m

$525

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 8/13

8:00 am-6:25 am

1 stop14h 25m

London Heathrow

Thu 8/21

2:25 pm-9:33 pm

1 stop15h 08m

$525

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 9/16

7:30 pm-7:20 pm

1 stop15h 50m

London Heathrow

Wed 9/24

8:05 pm-4:10 pm

1 stop28h 05m

$526

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 50 results
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Best time to book a flight from Fremont to London

Have a flexible travel schedule? Discover the best time to fly to London 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

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

Use this chart to determine the optimal time to book a round-trip flight from Fremont to London. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Fremont to London, you should look to book at least 38 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Fremont to London (average of $661). Flying from Fremont to London in June is currently the most expensive (average of $1,097). 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 LON?

Find hourly flight availability from Fremont 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 July 30, 2025.

When flying from Fremont to London, 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?

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

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

Weekly flight availability from Fremont to London

Explore weekly flight availability from Fremont 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 July 30, 2025.

The most flights from FR8 to LON are scheduled on a Monday (43 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (43 on average).

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 July 30, 2025.
Peruse reviews from past customers who have flown with Delta, Austrian Airlines, and SWISS from Fremont to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

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
7.6
Good
823 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

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.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

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.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

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.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

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 London. 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 one-way?

    The cheapest airlines for a one-way flight from Fremont to London are WestJet ($327), TAP AIR PORTUGAL ($331), and Iberia ($334).

  • What are the most popular routes from Fremont to London?

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

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Fremont to London on time: Aeromexico (83%), Air France (82%), Delta (82%).

  • What are the cheapest flights from Fremont to London?

    Looking for the cheapest flight from Fremont to London? While on average our users pay $2,840, our data indicates the cheapest price to be $367. The most popular route (San Francisco - London Heathrow), is priced around $417.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Fremont to London (average of $661). Flying from Fremont to London in June is currently the most expensive (average of $1,097). 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 London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Orpington
Watford
Gatwick
Borehamwood
Dartford
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Arundel
Milton Keynes
Bishop's Stortford
Eastbourne

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Top 10 airlines flying from Fremont to London

Discover the top 10 airlines that operate flights from Fremont 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$195Average$793FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$336Average$586FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$433Average$581FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$514Average$775FlexibilityNo cancel feeOn-time70%
SWISSCheapest$558Average$703FlexibilityNo cancel feeOn-time79%
IberiaCheapest$572Average$760FlexibilityNo cancel feeOn-time77%
FinnairCheapest$573Average$667FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$574Average$926FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$576Average$822FlexibilityNo cancel feeOn-time76%
DeltaCheapest$582Average$800FlexibilityNo cancel feeOn-timeN/A

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