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Cheap flights from London to Fremont from £375

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 31/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
5 May — 12 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Fremont are usually found in February or September, booked 51 days in advance, depart on a Thursday or Wednesday and return on a Monday

Cheap flight deals from London to Fremont

Enter your travel dates to find the best prices.

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 5 April 2026.

Fri 25/906:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Sun 27/916:45
SFO
-
LHR
1 stop17h 45m
Scandinavian Airlines
Deal found 1/4£407
Sun 19/410:55
LHR
-
SFO
1 stop15h 21m
Delta
Wed 22/409:50
SFO
-
LHR
1 stop16h 10m
Delta
Deal found 4/4£425
Wed 4/1115:25
LHR
-
SFO
Nonstop11h 20m
British Airways
Sun 8/1117:30
SFO
-
LHR
Nonstop10h 30m
British Airways
Deal found 5/4£431
Sat 18/413:25
LHR
-
SFO
1 stop17h 22m
Delta
Thu 23/405:50
SFO
-
LHR
1 stop17h 20m
Delta
Deal found 4/4£437
Thu 25/610:45
LHR
-
SFO
Nonstop11h 05m
British Airways
Sun 12/716:35
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 31/3£441
Sat 18/409:20
LHR
-
SFO
1 stop17h 49m
Delta
Mon 20/416:07
SFO
-
LHR
1 stop12h 58m
Delta
Deal found 4/4£450
Sat 26/910:45
LHR
-
SFO
Nonstop11h 05m
British Airways
Mon 28/919:30
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 1/4£451
Fri 17/412:25
LHR
-
SFO
1 stop16h 26m
Delta
Sat 25/409:20
SFO
-
LHR
1 stop15h 30m
Delta
Deal found 4/4£454
Sat 7/1111:45
LHR
-
SFO
Nonstop11h 15m
British Airways
Sat 14/1120:40
SFO
-
LHR
Nonstop10h 30m
British Airways
Deal found 5/4£460
Fri 17/410:45
LHR
-
SFO
1 stop16h 18m
Delta
Wed 22/416:07
SFO
-
LHR
1 stop12h 58m
Delta
Deal found 4/4£461
Wed 6/517:25
LGW
-
SFO
2 stops29h 05m
Multiple Airlines
Mon 11/516:30
SFO
-
LGW
2 stops22h 20m
Multiple Airlines
Deal found 3/4£462
Sat 18/417:45
LHR
-
SFO
1 stop13h 50m
Delta
Fri 24/407:25
SFO
-
LHR
1 stop17h 25m
Delta
Deal found 4/4£467

Find flight deals from London to Fremont

Keep the following information in mind while searching for London to Fremont flight deals. Data was last updated 5 April 2026.

Round-trip from

£407

One-way from

£375

Popular in

December

Cheapest in

February

Average price

£495
Scandinavian Airlines
  • Scandinavian Airlines
  • 25/9-27/9
  • 2 total stops
  • 33h 45m total
  • London to Fremont
Search Deals
31/5
  • 31/5
  • 3 total stops
  • 47h 23m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 5 April 2026.
Use the filters below to find and compare flights from London to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Fri 17/4

21:50-13:15

1 stop23h 25m

San Francisco

Fri 24/4

15:15-21:05

1 stop21h 50m

£538

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Thu 16/4

05:40-17:55

1 stop20h 15m

San Francisco

Sun 19/4

19:40-11:00

1 stop31h 20m

£543

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 9/9

16:25-14:30

1 stop30h 05m

San Francisco

Tue 15/9

19:20-09:45

2 stops30h 25m

£548

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 25/8

19:50-14:40

2 stops26h 50m

San Francisco

Tue 15/9

16:45-16:25

2 stops15h 40m

£552

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 25/6

10:55-21:51

1 stop18h 56m

San Francisco

Thu 9/7

16:39-15:00

1 stop14h 21m

£553
Fastest return journey

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 24/6

18:30-21:25

Nonstop10h 55m

San Francisco

Wed 8/7

23:15-17:30

Nonstop10h 15m

£554

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 15/4

12:45-15:45

Nonstop11h 00m

San Francisco

Wed 22/4

23:15-17:30

Nonstop10h 15m

£559

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 19/4

12:45-15:45

Nonstop11h 00m

San Francisco

Mon 18/5

13:25-10:00

1 stop12h 35m

£568

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 20/4

20:15-11:45

1 stop23h 30m

San Francisco

Tue 5/5

13:45-16:40

1 stop18h 55m

£569

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 27/4

18:30-21:25

Nonstop10h 55m

San Francisco

Fri 1/5

23:15-17:30

Nonstop10h 15m

£573

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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 3 April 2026.

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 51 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 £360). Flying from London to Fremont in July is currently the most expensive (average of £440). 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 5 April 2026.

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.

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 5 April 2026.

The most flights from LON to FR8 are scheduled on a Monday (37 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (31 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 5 April 2026.
See what other customers who have flown with Austrian Airlines,Virgin Atlantic, andUnited Airlines 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.
Austrian Airlines
7.6
Good
905 reviews
Check prices

Overall

7.6

Food

6.8

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Austrian Airlines
7.6
Good
905 reviews
Austrian Airlines
7.6
Good
905 reviews
Check prices

Overall

7.6

Food

6.8

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Virgin Atlantic
7.5
Good
685 reviews
Austrian Airlines
7.6
Good
905 reviews
Check prices

Overall

7.6

Food

6.8

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
United Airlines
7.4
Good
9,546 reviews
Austrian Airlines
7.6
Good
905 reviews
Check prices

Overall

7.6

Food

6.8

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Lufthansa
6.8
Okay
7,892 reviews
Austrian Airlines
7.6
Good
905 reviews
Check prices

Overall

7.6

Food

6.8

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
British Airways
6.7
Okay
7,853 reviews
Austrian Airlines
7.6
Good
905 reviews
Check prices

Overall

7.6

Food

6.8

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

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.

  • How long is the flight from London to Fremont?

    For as low as £540, Virgin Atlantic can have you in Fremont from London in 23h 30m. London and Fremont are separated by a distance of 5363 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London to Fremont one-way?

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as £275. However, be on the lookout for offers from WestJet and Scandinavian Airlines, 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 Stansted - 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 New Zealand (83%), Air Canada (79%), Austrian Airlines (79%).

  • What are the cheapest flights from London to Fremont?

    Looking at all options, your cheapest flight can be booked for £408. While the most popular route (London Heathrow - San Francisco) can be booked for £494 on average, our data indicates £2,062 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 £360). Flying from London to Fremont in July is currently the most expensive (average of £440). 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 5 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£326Average£583FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£341Average£473FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£343Average£557FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
SWISSCheapest£357Average£458FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£358Average£517FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£364Average£552FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£366Average£472FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapest£374Average£539FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£378Average£511FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£379Average£485FlexibilityNo 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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