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Cheap flights from London to Fremont from £398

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from London to Fremont are usually found in February or November, booked 60 days in advance, depart on a Tuesday or Friday 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 29 April 2025.

Round-trip from

£398

Popular in

July

Cheapest in

February

Average price

£483
Lufthansa
  • Lufthansa
  • 10/9-17/9
  • 1 total stop
  • 25h 45m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£85 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 29 April 2025.

Wed 10/908:40LHR - SFO
1 stop15h 30mLufthansa
Wed 17/919:55SFO - LHR
Nonstop10h 15mLufthansa
Deal found 28/4£398
Wed 24/906:40LHR - SFO
1 stop17h 50mScandinavian Airlines
Thu 2/1019:40SFO - LHR
1 stop14h 00mScandinavian Airlines
Deal found 28/4£400
Mon 13/1019:50LHR - SFO
1 stop25h 45mTAP AIR PORTUGAL
Mon 27/1017:35SFO - LHR
1 stop22h 05mTAP AIR PORTUGAL
Deal found 28/4£403
Mon 5/511:45LHR - SFO
1 stop32h 00mVirgin Atlantic
Sun 11/516:05SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 28/4£406
Wed 14/518:35LGW - SFO
1 stop29h 35mSWISS
Fri 23/514:20SFO - LGW
1 stop19h 30mSWISS
Deal found 28/4£408
Tue 13/508:45LHR - SFO
1 stop15h 25mMultiple Airlines
Sun 18/519:40SFO - LHR
Nonstop10h 30mMultiple Airlines
Deal found 28/4£409
Mon 5/512:20LGW - SFO
2 stops20h 02mFinnair
Sat 10/513:35SFO - LGW
2 stops33h 00mFinnair
Deal found 28/4£409
Sun 11/506:00LHR - SFO
1 stop18h 25mSWISS
Sun 18/519:30SFO - LHR
1 stop31h 55mSWISS
Deal found 27/4£411
Mon 5/506:30LHR - SFO
1 stop14h 10mUnited Airlines
Sun 18/515:55SFO - LHR
Nonstop10h 30mUnited Airlines
Deal found 28/4£413
Wed 24/916:25LGW - SFO
1 stop30h 05mTAP AIR PORTUGAL
Wed 1/1016:20SFO - LGW
1 stop33h 25mTAP AIR PORTUGAL
Deal found 28/4£421
Thu 18/915:05LGW - SFO
1 stop16h 52mBritish Airways
Wed 24/922:29SFO - LGW
1 stop25h 41mBritish Airways
Deal found 28/4£421
Fri 12/910:35LHR - SFO
Nonstop11h 05mAustrian Airlines
Fri 19/919:55SFO - LHR
Nonstop10h 15mAustrian Airlines
Deal found 27/4£422

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 29 April 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

Wed 10/9

08:40-16:10

1 stop15h 30m

San Francisco

Wed 17/9

19:55-14:10

Nonstop10h 15m

£398

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 24/9

06:40-16:30

1 stop17h 50m

San Francisco

Thu 2/10

19:40-17:40

1 stop14h 00m

£400

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 13/10

19:50-13:35

1 stop25h 45m

San Francisco

Mon 27/10

17:35-22:40

1 stop22h 05m

£403

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 14/5

18:35-16:10

1 stop29h 35m

San Francisco

Fri 23/5

14:20-17:50

1 stop19h 30m

£408

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 13/5

08:45-16:10

1 stop15h 25m

San Francisco

Sun 18/5

19:40-14:10

Nonstop10h 30m

£409

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 11/5

06:00-16:25

1 stop18h 25m

San Francisco

Sun 18/5

19:30-11:25

1 stop31h 55m

£411

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 12/9

06:20-15:50

1 stop17h 30m

San Francisco

Fri 19/9

17:45-15:55

1 stop14h 10m

£412

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 9/5

06:30-12:40

1 stop14h 10m

San Francisco

Fri 23/5

05:05-12:20

1 stop23h 15m

£417

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 24/9

16:25-14:30

1 stop30h 05m

San Francisco

Wed 1/10

16:20-09:45

1 stop33h 25m

£421

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Thu 18/9

15:05-23:57

1 stop16h 52m

San Francisco

Wed 24/9

22:29-08:10

1 stop25h 41m

£421

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 60 results
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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 25 April 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 60 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 29 April 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 21 April 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 29 April 2025.

The most flights from LON to FR8 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).

Rainfall in Fremont by month

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

In terms of precipitation, rainfall in Fremont ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit Fremont when rainfall is around 0.0 mm.

Temperature in Fremont by month

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

If weather is an important factor for your trip to Fremont, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 29 April 2025.
See what other customers who have flown with Delta, Air New Zealand and KLM 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
7,929 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

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
7,929 reviews
Delta
8.0
Very Good
7,929 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

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 New Zealand
8.0
Very Good
471 reviews
Delta
8.0
Very Good
7,929 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

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
1,333 reviews
Delta
8.0
Very Good
7,929 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

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
385 reviews
Delta
8.0
Very Good
7,929 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

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
1,273 reviews
Delta
8.0
Very Good
7,929 reviews
Check prices

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

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 Lufthansa, with whom users have recently found tickets for as low as £446. However, be on the lookout for offers from TAP AIR PORTUGAL and British Airways, 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 (92%), Austrian Airlines (92%), United Airlines (92%).

  • What are the cheapest flights from London to Fremont?

    Looking at all options, your cheapest flight can be booked for £410. While the most popular route (London Heathrow - San Francisco) can be booked for £379 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

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Alternative routes for London to Fremont

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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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£239Average£465FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£280Average£466FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£317Average£414FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapest£346Average£468FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£357Average£580FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapest£360Average£510FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
SWISSCheapest£363Average£446FlexibilityNo cancel feeOn-time79%
Search SWISS flights
British AirwaysCheapest£364Average£574FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£369Average£575FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£372Average£487FlexibilityNo cancel feeOn-time76%
Search Finnair 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.

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