Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to Fremont from £371

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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
2 Jul — 9 Jul1
1 adult

Cheapflights Tip: The best prices from London to Fremont are usually found in February or November, booked 86 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Cheap flight deals from London to Fremont

Keep the following information in mind while searching for London to Fremont flight deals. Data was last updated 27 June 2025.

Round-trip from

£390

One-way from

£371

Popular in

July

Cheapest in

February

Average price

£501
Lufthansa
  • Lufthansa
  • 9/9-19/9
  • 1 total stop
  • 25h 45m total
  • London to Fremont
Search Deals
Aer Lingus
  • Aer Lingus
  • 25/9
  • 1 total stop
  • 14h 05m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£79 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from London to Fremont

Cheapest flights from London to Fremont
Explore the most affordable flight options available from London to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 June 2025.

Tue 9/908:45LHR - SFO
1 stop15h 25mUnited Airlines
Mon 15/916:05SFO - LHR
Nonstop10h 20mUnited Airlines
Deal found 26/6£390
Sun 24/806:30LHR - SFO
1 stop14h 10mLufthansa
Tue 30/916:05SFO - LHR
Nonstop10h 20mLufthansa
Deal found 25/6£390
Fri 19/920:05LHR - SFO
1 stop28h 30mSWISS
Mon 29/914:20SFO - LHR
1 stop19h 30mSWISS
Deal found 25/6£391
Wed 10/910:55LGW - SFO
1 stop17h 42mMultiple Airlines
Wed 1/1006:00SFO - LGW
1 stop20h 55mMultiple Airlines
Deal found 25/6£392
Mon 8/908:40LHR - SFO
1 stop15h 30mMultiple Airlines
Tue 16/916:05SFO - LHR
Nonstop10h 20mMultiple Airlines
Deal found 25/6£393
Tue 19/818:35LGW - SFO
1 stop30h 00mSWISS
Tue 9/919:30SFO - LGW
1 stop14h 20mSWISS
Deal found 26/6£393
Wed 8/1014:15LHR - SFO
Nonstop11h 10mBritish Airways
Wed 5/1117:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 27/6£395
Thu 11/1216:30LHR - SFO
1 stop31h 35mTAP AIR PORTUGAL
Sat 27/1216:35SFO - LHR
1 stop21h 00mTAP AIR PORTUGAL
Deal found 25/6£397
Wed 24/908:40LHR - SFO
2 stops18h 58mAir Canada
Wed 1/1008:40SFO - LHR
2 stops16h 55mAir Canada
Deal found 26/6£399
Sat 1/1108:40LCY - SFO
1 stop15h 45mSWISS
Sat 8/1119:25SFO - LCY
1 stop15h 10mSWISS
Deal found 27/6£399
Wed 10/916:25LGW - SFO
1 stop30h 05mTAP AIR PORTUGAL
Wed 17/916:20SFO - LGW
1 stop33h 25mTAP AIR PORTUGAL
Deal found 25/6£404
Mon 15/916:15LHR - SFO
Nonstop11h 00mBrussels Airlines
Fri 26/913:05SFO - LHR
Nonstop10h 20mBrussels Airlines
Deal found 26/6£405

Cheapflights Fare Finder

Customise your flight search to find flights from London to Fremont 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 858,174 searches. Data last updated 27 June 2025.
Use the filters below to find and compare flights from London to Fremont that are best for you.

Fly from

London

Fly to

Fremont

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 9/9

08:45-16:10

1 stop15h 25m

San Francisco

Fri 19/9

16:05-10:25

Nonstop10h 20m

£390

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/8

06:30-12:40

1 stop14h 10m

San Francisco

Tue 30/9

16:05-10:25

Nonstop10h 20m

£390

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 19/9

20:05-16:35

1 stop28h 30m

San Francisco

Mon 29/9

14:20-17:50

1 stop19h 30m

£391

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 1/11

07:40-15:50

1 stop15h 10m

San Francisco

Fri 7/11

17:25-12:00

Nonstop10h 35m

£392

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 10/9

10:55-20:37

1 stop17h 42m

San Francisco

Wed 1/10

06:00-10:55

1 stop20h 55m

£392

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 19/8

18:35-16:35

1 stop30h 00m

San Francisco

Tue 9/9

19:30-17:50

1 stop14h 20m

£393

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 8/10

14:15-17:25

Nonstop11h 10m

San Francisco

Wed 5/11

17:30-12:00

Nonstop10h 30m

£395

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 11/12

16:30-16:05

1 stop31h 35m

San Francisco

Sat 27/12

16:35-21:35

1 stop21h 00m

£397

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 24/9

08:40-19:38

2 stops18h 58m

San Francisco

Wed 1/10

08:40-09:35

2 stops16h 55m

£399

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Sat 1/11

08:40-17:25

1 stop15h 45m

San Francisco

Sat 8/11

19:25-18:35

1 stop15h 10m

£399

Flights are sorted by cheapest return flights first.

Deals found on 24/6

Showing 1-10 of 56 results
1
2
3
...
6

Best time to book a flight from London to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from London with our price prediction graph.
Estimated return 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 London to Fremont

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

Use this chart to determine the optimal time to book a return flight from London to Fremont. Price data was last updated on 20 June 2025.

The price you pay for your flight from London to Fremont may vary depending on when you book. For the best chance of a lower fare, look to book 86 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 London to Fremont?

Currently, February is the cheapest month in which you can book a flight from London to Fremont (average of £538). Flying from London to Fremont in July 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 LON to FR8?

Find hourly flight availability from London to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 June 2025.

When flying from London to Fremont, 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 London to Fremont?

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

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

Weekly flight availability from London to Fremont

Explore weekly flight availability from London to Fremont. 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 27 June 2025.

The most flights from LON to FR8 are scheduled on a Monday (42 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 on average).

How much does it cost for a return flight from London to Fremont?

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated 27 June 2025.
See what other customers who have flown with Delta, KLM, andAir Transat from London to Fremont have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,963 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Transat
7.8
Good
401 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
805 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,298 reviews
Delta
8.0
Very Good
7,963 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Crew

8.5

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from London to Fremont. 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 London to Fremont one-way?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as £371. However, be on the lookout for offers from Scandinavian Airlines and WestJet, as they are both options that can get you from London to Fremont for a low price.

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

    The most popular route from London to Fremont is London Heathrow - San Francisco. You may also consider London Gatwick - San Francisco or London City - San Francisco.

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

    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 London to Fremont on time: Air Canada (88%), Austrian Airlines (88%), United Airlines (88%).

  • What are the cheapest flights from London to Fremont?

    Looking at all options, your cheapest flight can be booked for £344. While the most popular route (London Heathrow - San Francisco) can be booked for £337 on average our data indicates £1,495 when flying from London to Fremont.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from London to Fremont (average of £538). Flying from London to Fremont in July 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Fremont

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to San Francisco flights
Heathrow to Las Vegas flights
London City to Los Angeles flights
Gatwick to Los Angeles flights
Gatwick to San Francisco flights
London City to San Francisco flights
Luton to Los Angeles flights
Heathrow to Ontario flights
Gatwick to Las Vegas flights
Heathrow to San Diego flights
Heathrow to Santa Ana flights
Stansted to Los Angeles flights
London City to Las Vegas flights
Heathrow to Long Beach flights
Heathrow to Burbank flights
Heathrow to San Jose flights
Heathrow to Oakland flights
Manchester to Las Vegas flights
Luton to San Francisco flights
Gatwick to San Jose flights
Gatwick to Santa Ana flights
Manchester to Los Angeles flights
Stansted to San Francisco flights
Gatwick to Oakland flights
Gatwick to Burbank flights
Southend to Los Angeles flights
Gatwick to San Diego flights
Manchester to San Francisco flights
London City to San Diego flights
London City to Santa Ana flights
Luton to Las Vegas flights
Gatwick to Ontario flights
Stansted to Las Vegas flights
London City to Burbank flights
Heathrow to Reno flights
Edinburgh to Los Angeles flights
Edinburgh to San Francisco flights
Edinburgh to Las Vegas flights
Heathrow to Palm Springs flights
Birmingham to Los Angeles flights
Newcastle upon Tyne to Los Angeles flights
Heathrow to Sacramento flights
Manchester to Santa Ana flights
Manchester to Ontario flights
London City to Oakland flights
Liverpool to Las Vegas flights
Manchester to Palm Springs flights
Edinburgh to Sacramento flights
London City to Ontario flights

Top 10 airlines flying from London to Fremont

Discover the top 10 airlines that operate flights from London to Fremont. 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 858,174 searches. Data last updated 27 June 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£232Average£470FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air FranceCheapest£309Average£421FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapest£338Average£460FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
SWISSCheapest£344Average£406FlexibilityNo cancel feeOn-time79%
Search SWISS flights
United AirlinesCheapest£345Average£563FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£346Average£567FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapest£353Average£503FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£356Average£572FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£357Average£482FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
KLMCheapest£360Average£449FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Fremont?

Deals for London to Fremont flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from London to Fremont?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to Fremont.

Can Cheapflights find flights from London to Fremont with no change fees?

Yes, we can. To see specific flights from London to Fremont with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to Fremont become cheaper?

Yes, Cheapflights offers price alerts on London to Fremont flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights