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Cheap flights from London to Fremont from £397

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
29 Apr — 6 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 24 April 2025.

Round-trip from

£397

Popular in

July

Cheapest in

February

Average price

£486
Lufthansa
  • Lufthansa
  • 11/9-25/9
  • 1 total stop
  • 25h 50m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£87 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 24 April 2025.

Thu 11/908:40LHR - SFO
1 stop15h 30mMultiple Airlines
Thu 25/913:05SFO - LHR
Nonstop10h 20mMultiple Airlines
Deal found 24/4£397
Wed 8/1019:50LHR - SFO
1 stop26h 40mTAP AIR PORTUGAL
Wed 22/1016:20SFO - LHR
1 stop21h 40mTAP AIR PORTUGAL
Deal found 23/4£398
Thu 11/908:40LHR - SFO
1 stop15h 30mLufthansa
Thu 25/909:00SFO - LHR
1 stop18h 10mLufthansa
Deal found 24/4£400
Thu 1/506:30LHR - SFO
1 stop13h 15mVirgin Atlantic
Wed 14/516:05SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 23/4£409
Tue 6/508:45LHR - SFO
2 stops19h 25mAir Canada
Tue 13/508:15SFO - LHR
1 stop17h 45mAir Canada
Deal found 22/4£411
Wed 7/518:35LGW - SFO
1 stop29h 35mSWISS
Sun 11/514:00SFO - LGW
1 stop19h 50mSWISS
Deal found 23/4£412
Thu 1/508:40LHR - SFO
1 stop15h 30mSWISS
Mon 5/519:30SFO - LHR
1 stop14h 20mSWISS
Deal found 24/4£412
Wed 7/515:05LGW - SFO
1 stop26h 20mFinnair
Sat 10/500:21SFO - LGW
2 stops24h 14mFinnair
Deal found 23/4£412
Wed 30/408:40LHR - SFO
1 stop15h 30mUnited Airlines
Wed 7/515:55SFO - LHR
Nonstop10h 30mUnited Airlines
Deal found 23/4£413
Mon 13/1016:25LGW - SFO
1 stop29h 10mTAP AIR PORTUGAL
Mon 20/1016:20SFO - LGW
2 stops20h 05mTAP AIR PORTUGAL
Deal found 24/4£413
Wed 27/806:40LHR - SFO
1 stop17h 50mScandinavian Airlines
Sat 6/919:40SFO - LHR
1 stop18h 00mScandinavian Airlines
Deal found 23/4£424
Wed 10/915:05LGW - SFO
1 stop16h 52mBritish Airways
Wed 24/922:29SFO - LGW
1 stop25h 41mBritish Airways
Deal found 23/4£425

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 24 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

Thu 11/9

08:40-16:10

1 stop15h 30m

San Francisco

Thu 25/9

13:05-07:25

Nonstop10h 20m

£397

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 8/10

19:50-14:30

1 stop26h 40m

San Francisco

Wed 22/10

16:20-22:00

1 stop21h 40m

£398

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 11/9

08:40-16:10

1 stop15h 30m

San Francisco

Thu 25/9

09:00-11:10

1 stop18h 10m

£400

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 6/5

08:45-20:10

2 stops19h 25m

San Francisco

Tue 13/5

08:15-10:00

1 stop17h 45m

£411

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 7/5

18:35-16:10

1 stop29h 35m

San Francisco

Sun 11/5

14:00-17:50

1 stop19h 50m

£412

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 7/5

15:05-09:25

1 stop26h 20m

San Francisco

Sat 10/5

00:21-08:35

2 stops24h 14m

£412

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 6/5

08:45-16:10

1 stop15h 25m

San Francisco

Tue 20/5

12:55-07:25

Nonstop10h 30m

£413

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Mon 13/10

16:25-13:35

1 stop29h 10m

San Francisco

Mon 20/10

16:20-20:25

2 stops20h 05m

£413

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 7/5

20:05-15:35

2 stops51h 30m

San Francisco

Wed 14/5

11:35-17:50

2 stops22h 15m

£415

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 7/5

16:25-19:30

Nonstop11h 05m

San Francisco

Sun 11/5

21:20-15:40

Nonstop10h 20m

£417

Flights are sorted by cheapest return flights first.

Deals found on 23/4

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 18 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 24 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 24 April 2025.

The most flights from LON to FR8 are scheduled on a Monday (37 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (31 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 24 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
7,920 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

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
7,920 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

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
469 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

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
7,920 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

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
7,920 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

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
1,272 reviews
Delta
8.0
Very Good
7,920 reviews
Check prices

Comfort

7.9

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

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 WestJet and Aer Lingus, 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 £407. While the most popular route (London Heathrow - San Francisco) can be booked for £309 on average our data indicates £1,521 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 24 April 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£240Average£467FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£281Average£468FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£319Average£416FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapest£348Average£470FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£359Average£578FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapest£362Average£508FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
SWISSCheapest£365Average£432FlexibilityNo cancel feeOn-time79%
Search SWISS flights
British AirwaysCheapest£366Average£579FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£374Average£490FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Brussels AirlinesCheapest£374Average£496FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines 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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