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$355+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Fremont to London are usually found in September or October, booked 88 days in advance, depart on a Wednesday or Monday and return on a Thursday

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 October 30, 2025.

This American Airlines deal was found by Cheapflights users on 10/27. 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 10/283:50 pmSFO - LHR
1 stop13h 30mAmerican Airlines
Tue 11/1111:45 amLHR - SFO
Nonstop11h 15mAmerican Airlines
Deal found 10/27$585
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/77:25 pmSFO - STN
2 stops19h 10mMultiple Airlines
Sun 12/148:30 amSTN - SFO
2 stops19h 05mMultiple Airlines
Deal found 10/29$586
This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:30 amSFO - LTN
3 stops26h 55mMultiple Airlines
Wed 11/268:50 pmLTN - SFO
2 stops23h 50mMultiple Airlines
Deal found 10/27$586
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:30 pmSFO - LHR
Nonstop10h 10mDelta
Tue 11/2511:40 amLHR - SFO
Nonstop11h 00mDelta
Deal found 10/29$586
This TAP AIR PORTUGAL deal was found by Cheapflights users on 10/29. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/174:35 pmSFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Mon 11/249:25 pmLGW - SFO
2 stops49h 05mTAP AIR PORTUGAL
Deal found 10/29$587
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 11/198:25 amSFO - LHR
2 stops17h 50mDelta
Thu 11/276:30 amLHR - SFO
1 stop13h 20mDelta
Deal found 10/28$587
This Mytrip deal was found by Cheapflights users on 10/28. 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 11/238:30 amSFO - STN
3 stops30h 05mMultiple Airlines
Mon 12/16:00 pmSTN - SFO
3 stops35h 22mMultiple Airlines
Deal found 10/28$588
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/154:40 pmSFO - LHR
2 stops19h 15mScandinavian Airlines
Fri 11/213:35 pmLHR - SFO
2 stops31h 00mScandinavian Airlines
Deal found 10/30$588
This SmartFares deal was found by Cheapflights users on 10/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/294:35 pmSFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Sun 12/710:40 amLGW - SFO
1 stop35h 55mTAP AIR PORTUGAL
Deal found 10/29$589
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:30 amSFO - STN
3 stops30h 10mMultiple Airlines
Tue 11/256:05 pmSTN - SFO
2 stops33h 30mMultiple Airlines
Deal found 10/29$589
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:25 amSFO - LTN
2 stops27h 45mMultiple Airlines
Mon 11/248:50 pmLTN - SFO
2 stops23h 50mMultiple Airlines
Deal found 10/29$589
This Delta deal was found by Cheapflights users on 10/28. 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.
Wed 11/51:25 pmSFO - LHR
1 stop12h 35mDelta
Tue 11/1111:40 amLHR - SFO
Nonstop11h 00mDelta
Deal found 10/28$589

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$585
(Scandinavian Airlines)

One-way from

$358
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$665
Provider with most accurate pricing for San Francisco-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-London (LON) flights.
Search Deals
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 ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 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 - STN

SFOSTN

San Francisco

Wed 11/19

8:30 am-10:40 pm

3 stops30h 10m

London Stansted

Tue 11/25

6:05 pm-7:35 pm

2 stops33h 30m

$589

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 11/27

8:25 am-3:40 pm

2 stops23h 15m

London Stansted

Thu 12/4

6:05 pm-12:40 pm

2 stops26h 35m

$595

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 11/26

1:20 pm-10:00 am

1 stop12h 40m

London Heathrow

Tue 12/2

11:05 am-8:28 pm

1 stop17h 23m

$599

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 11/18

11:45 am-8:45 am

1 stop13h 00m

London Heathrow

Tue 12/2

2:45 pm-10:31 pm

1 stop15h 46m

$599

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 11/30

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Mon 12/8

7:40 am-7:35 pm

1 stop19h 55m

$604

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 12/3

8:39 am-10:10 am

1 stop17h 31m

London Heathrow

Wed 12/10

6:35 am-7:35 pm

1 stop21h 00m

$604

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 11/29

12:50 pm-7:25 am

Nonstop10h 35m

London Heathrow

Sun 12/7

8:45 am-7:35 pm

1 stop18h 50m

$604

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 1/26

11:40 am-9:00 am

1 stop13h 20m

London Heathrow

Tue 2/3

11:05 am-8:59 pm

1 stop17h 54m

$607

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 2/3

9:50 am-10:00 am

1 stop16h 10m

London Heathrow

Fri 2/13

12:20 pm-10:30 pm

1 stop18h 10m

$607

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 11/17

7:30 am-2:05 pm

3 stops22h 35m

London Stansted

Wed 12/3

8:40 pm-12:40 pm

2 stops24h 00m

$610

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

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 October 24, 2025.

To ensure you get the cheapest price possible for a flight from Fremont to London, you should look to book at least 88 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, December is the cheapest month in which you can book a flight from Fremont to London (average of $472). Flying from Fremont to London in June is currently the most expensive (average of $803). 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 October 30, 2025.

It’s typically best to fly out from Fremont to London in the evening. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.

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 Tuesday evenings 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.

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 October 30, 2025.
Peruse reviews from past customers who have flown with Delta, Virgin Atlantic, and United Airlines 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
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

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
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

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
7.5
Good
670 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

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
8,999 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

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
3,001 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

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
7,487 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

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 35m. 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 JetBlue ($374), United Airlines ($381), and Delta ($384).

  • 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: KLM (92%), Air France (92%), Delta (92%).

  • What are the cheapest flights from Fremont to London?

    Looking for the cheapest flight from Fremont to London? While on average our users pay $2,575, our data indicates the cheapest price to be $342. The most popular route (San Francisco - London Heathrow), is priced around $411.

  • 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, December is the cheapest month in which you can book a flight from Fremont to London (average of $472). Flying from Fremont to London in June is currently the most expensive (average of $803). 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
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone
Eastbourne
Sutton

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$151Average$841FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$331Average$597FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$426Average$560FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$494Average$655FlexibilityNo cancel feeOn-time75%
SWISSCheapest$513Average$712FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$514Average$756FlexibilityNo cancel feeOn-time70%
DeltaCheapest$555Average$786FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$560Average$1,078FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$571Average$842FlexibilityNo cancel feeOn-time69%
IberiaCheapest$572Average$678FlexibilityNo cancel feeOn-time77%

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