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$383+ 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 9/20. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$517
(Kiwi.com)

One-way from

$383
(Justfly.com)

Popular in

June

Cheapest in

October

Average price

$660
From Fremont to London (LON)
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One-way flight from Fremont to London (LON)
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Highest demand for flights based on searches. 16% potential increase in price ($148 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
lun. 11/34:35 pmSFO - LGW
1 stop15h 10mTAP AIR PORTUGAL
jue. 11/134:00 pmLGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Deal found 9/10$517
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2712:35 pmSFO - LHR
2 stops22h 05mScandinavian Airlines
dom. 11/95:00 pmLHR - SFO
1 stop29h 35mScandinavian Airlines
Deal found 9/10$517
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
mar. 10/214:20 pmSFO - LHR
1 stop17h 25mTAP AIR PORTUGAL
mié. 10/296:00 amLHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Deal found 9/9$518
This Mytrip deal was found by Cheapflights users on 9/9. 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.
mar. 10/78:30 amSFO - STN
2 stops19h 30mMultiple Airlines
mar. 10/149:45 pmSTN - SFO
2 stops26h 25mMultiple Airlines
Deal found 9/9$520
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
lun. 11/34:35 pmSFO - LHR
1 stop21h 00mTAP AIR PORTUGAL
mié. 11/126:00 amLHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Deal found 9/10$520
This CrystalTravel deal was found by Cheapflights users on 9/10. 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.
lun. 10/273:30 pmSFO - LHR
2 stops19h 10mScandinavian Airlines
jue. 10/307:05 amLHR - SFO
2 stops19h 20mScandinavian Airlines
Deal found 9/10$521
This CrystalTravel deal was found by Cheapflights users on 9/11. 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.
mié. 11/123:30 pmSFO - LHR
2 stops18h 10mScandinavian Airlines
mié. 11/197:50 pmLHR - SFO
2 stops26h 45mScandinavian Airlines
Deal found 9/11$522
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
mié. 10/295:35 pmSFO - LHR
1 stop34h 50mTAP AIR PORTUGAL
mié. 11/56:00 amLHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Deal found 9/9$524
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2712:35 pmSFO - LHR
2 stops22h 55mScandinavian Airlines
sáb. 11/16:40 amLHR - SFO
2 stops39h 55mScandinavian Airlines
Deal found 9/10$525
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/84:40 pmSFO - LHR
2 stops19h 15mScandinavian Airlines
lun. 11/107:30 pmLHR - SFO
2 stops36h 23mScandinavian Airlines
Deal found 9/9$526
This Mytrip deal was found by Cheapflights users on 9/9. 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.
mar. 9/308:30 amSFO - LTN
2 stops19h 50mMultiple Airlines
mar. 10/146:10 pmLTN - SFO
2 stops30h 00mMultiple Airlines
Deal found 9/9$527
This FlightHub deal was found by Cheapflights users on 9/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/303:43 pmSFO - LHR
2 stops17h 57mScandinavian Airlines
dom. 12/76:40 pmLHR - SFO
1 stop27h 55mScandinavian Airlines
Deal found 9/10$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 septiembre 11, 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 - LTN

SFOLTN

San Francisco

lun. 10/6

8:30 am-12:20 pm

2 stops19h 50m

London Luton

mar. 10/21

6:10 pm-12:40 pm

2 stops26h 30m

$541

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

mié. 11/5

8:25 am-6:00 pm

2 stops25h 35m

London Stansted

lun. 11/10

9:20 pm-4:30 pm

2 stops27h 10m

$543

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mar. 10/14

3:30 pm-5:40 pm

2 stops18h 10m

London Heathrow

mar. 10/28

7:30 pm-4:10 pm

1 stop27h 40m

$544

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

mar. 10/14

8:30 am-7:25 pm

3 stops26h 55m

London Stansted

mar. 10/28

9:20 pm-5:30 pm

2 stops27h 10m

$549

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

lun. 11/3

8:25 am-8:55 pm

2 stops28h 30m

London Stansted

lun. 11/17

8:40 am-9:22 pm

2 stops20h 42m

$562

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

mar. 10/21

8:30 am-12:20 pm

2 stops19h 50m

London Luton

mar. 10/28

5:00 pm-5:30 pm

2 stops31h 30m

$568

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

lun. 12/1

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

vie. 12/12

9:00 am-4:30 pm

1 stop15h 30m

$569

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mié. 9/24

4:05 pm-10:25 am

Nonstop10h 20m

London Heathrow

mié. 10/1

8:40 am-4:35 pm

1 stop15h 55m

$569

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

vie. 10/24

8:30 am-11:25 am

2 stops18h 55m

London Stansted

jue. 10/30

9:20 pm-5:30 pm

2 stops27h 10m

$569

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

mar. 10/21

9:20 pm-3:40 pm

Nonstop10h 20m

London Heathrow

mar. 10/28

6:30 am-12:50 pm

1 stop13h 20m

$580

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 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 August 29, 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 $1,098). 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 septiembre 11, 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 septiembre 11, 2025.

The most flights from FR8 to LON are scheduled on a Monday (42 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (42 on average).

How much does it cost to fly round-trip from Fremont to London?

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 septiembre 11, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and Virgin Atlantic 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
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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.
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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.
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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.
Virgin Atlantic
7.4
Good
664 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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.
Iberia
7.0
Good
2,929 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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.
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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

  • How long is the flight from Fremont to London?

    Departing from Fremont to London will take you 10h 20m. There are 5350 mi between Fremont and London. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Delta ($384), United Airlines ($384), and TAP AIR PORTUGAL ($392).

  • 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: Iberia (89%), KLM (88%), Air France (88%).

  • What are the cheapest flights from Fremont to London?

    Looking for the cheapest flight from Fremont to London? While on average our users pay $2,565, our data indicates the cheapest price to be $354. The most popular route (San Francisco - London Heathrow), is priced around $440.

  • 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 $1,098). 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
Southend-on-Sea
Harrow
Canterbury
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Eastleigh
Dartford
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Winchester
Orpington
Gatwick
Borehamwood
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Bedford
Wembley
Folkestone
Chichester
Arundel

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Alternative routes for Fremont to London

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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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$195Average$811FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$336Average$601FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$433Average$572FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$514Average$760FlexibilityNo cancel feeOn-time70%
SWISSCheapest$541Average$712FlexibilityNo cancel feeOn-time79%
DeltaCheapest$564Average$783FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$570Average$866FlexibilityNo cancel feeOn-time69%
IberiaCheapest$572Average$760FlexibilityNo cancel feeOn-time77%
FinnairCheapest$573Average$676FlexibilityNo cancel feeOn-time76%
LufthansaCheapest$573Average$832FlexibilityNo cancel feeOn-time76%

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