Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to Fremont from £354

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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
28 Feb — 7 Mar1
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 Wednesday

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 29 January 2026.

Tue 15/908:45
LHR
-
SFO
2 stops17h 53m
Air Canada
Tue 22/908:10
SFO
-
LHR
1 stop14h 20m
Air Canada
Deal found 27/1£368
Wed 18/206:35
LHR
-
SFO
1 stop21h 00m
Multiple Airlines
Wed 15/407:00
SFO
-
LHR
1 stop14h 55m
Multiple Airlines
Deal found 27/1£369
Tue 28/407:25
LHR
-
SFO
1 stop15h 10m
United Airlines
Tue 19/508:10
SFO
-
LHR
1 stop18h 00m
United Airlines
Deal found 27/1£370
Tue 1/909:25
LGW
-
SFO
1 stop14h 50m
SWISS
Wed 16/919:35
SFO
-
LGW
1 stop14h 15m
SWISS
Deal found 28/1£370
Mon 2/317:10
LHR
-
SFO
1 stop31h 20m
Multiple Airlines
Sun 15/313:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 29/1£370
Thu 16/413:30
LHR
-
SFO
1 stop14h 30m
Lufthansa
Mon 20/413:50
SFO
-
LHR
1 stop13h 55m
Lufthansa
Deal found 27/1£371
Thu 26/218:40
LGW
-
SFO
1 stop29h 50m
SWISS
Thu 5/319:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 27/1£371
Tue 10/309:15
LCY
-
SFO
1 stop15h 15m
SWISS
Tue 17/320:25
SFO
-
LCY
1 stop13h 40m
SWISS
Deal found 27/1£371
Fri 13/213:30
LHR
-
SFO
1 stop14h 40m
Lufthansa
Fri 20/217:25
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 27/1£372
Fri 13/213:30
LHR
-
SFO
1 stop14h 40m
Lufthansa
Fri 27/217:25
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 27/1£373
Sat 14/219:30
LHR
-
SFO
1 stop25h 10m
Multiple Airlines
Sat 21/212:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 27/1£373
Sun 22/218:40
LGW
-
SFO
1 stop29h 50m
SWISS
Mon 2/319:25
SFO
-
LGW
1 stop14h 25m
SWISS
Deal found 27/1£373

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 29 January 2026.

Round-trip from

£369

One-way from

£354

Popular in

July

Cheapest in

February

Average price

£469
Brussels Airlines
  • Brussels Airlines
  • 18/2-15/4
  • 2 total stops
  • 35h 55m total
  • London to Fremont
Search Deals
12/2
  • 12/2
  • 2 total stops
  • 34h 18m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£52 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 January 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 29 January 2026.
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 28/4

07:25-14:35

1 stop15h 10m

San Francisco

Tue 19/5

08:10-10:10

1 stop18h 00m

£370

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 28/4

07:25-14:30

1 stop15h 05m

San Francisco

Sat 9/5

08:30-10:00

1 stop17h 30m

£371

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 13/2

13:30-20:10

1 stop14h 40m

San Francisco

Mon 16/2

22:55-21:20

1 stop14h 25m

£372

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 13/3

09:00-17:30

1 stop15h 30m

San Francisco

Fri 20/3

18:25-12:00

Nonstop10h 35m

£375

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 18/2

14:25-16:30

2 stops34h 05m

San Francisco

Sun 22/2

19:25-17:50

1 stop14h 25m

£380

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 9/3

10:05-14:20

Nonstop11h 15m

San Francisco

Sun 22/3

18:25-12:00

Nonstop10h 35m

£382

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 21/2

10:05-13:20

Nonstop11h 15m

San Francisco

Sun 1/3

17:25-12:00

Nonstop10h 35m

£383

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 22/2

11:35-07:18

1 stop27h 43m

San Francisco

Mon 2/3

22:55-20:35

1 stop13h 40m

£386

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 22/3

13:45-18:00

Nonstop11h 15m

San Francisco

Sun 29/3

16:35-11:10

Nonstop10h 35m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 1/5

16:15-19:20

Nonstop11h 05m

San Francisco

Fri 8/5

12:55-07:25

Nonstop10h 30m

£393

Flights are sorted by cheapest return flights first.

Deals found on 27/1

Showing 1-10 of 60 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 23 January 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 £344). Flying from London to Fremont in July is currently the most expensive (average of £431). 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 January 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 29 January 2026.

The most flights from LON to FR8 are scheduled on a Wednesday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (25 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 29 January 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
7.5
Good
895 reviews
Check prices

Boarding

7.6

Overall

7.5

Food

6.8

Crew

8.1

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Austrian Airlines
7.5
Good
895 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Boarding

7.6

Overall

7.5

Food

6.8

Crew

8.1

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Virgin Atlantic
7.5
Good
678 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Boarding

7.6

Overall

7.5

Food

6.8

Crew

8.1

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
United Airlines
7.4
Good
9,214 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Boarding

7.6

Overall

7.5

Food

6.8

Crew

8.1

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Lufthansa
6.8
Okay
7,754 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Boarding

7.6

Overall

7.5

Food

6.8

Crew

8.1

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
British Airways
6.7
Okay
7,705 reviews
Austrian Airlines
7.5
Good
895 reviews
Check prices

Boarding

7.6

Overall

7.5

Food

6.8

Crew

8.1

Comfort

7.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful

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 £370, United Airlines can have you in Fremont from London in 15h 10m. London and Fremont are separated by a distance of 5350 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 Scandinavian Airlines, with whom users have recently found tickets for as low as £255. However, be on the lookout for offers from TAP AIR PORTUGAL 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: KLM (82%), Air France (82%), Delta (82%).

  • What are the cheapest flights from London to Fremont?

    Looking at all options, your cheapest flight can be booked for £342. While the most popular route (London Heathrow - San Francisco) can be booked for £260 on average, our data indicates £1,996 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 £344). Flying from London to Fremont in July is currently the most expensive (average of £431). 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 Las Vegas flights
Heathrow to San Francisco flights
Gatwick to Los Angeles flights
Stansted to Los Angeles flights
London City to Los Angeles flights
Heathrow to Ontario flights
Gatwick to San Francisco flights
Heathrow to San Diego flights
Gatwick to Las Vegas flights
London City to San Francisco flights
Luton to Los Angeles flights
Stansted to San Francisco flights
Heathrow to Santa Ana flights
London City to Las Vegas flights
Heathrow to Long Beach flights
Stansted to Las Vegas flights
Heathrow to San Jose flights
Manchester to Las Vegas flights
Manchester to Los Angeles flights
Luton to San Francisco flights
Gatwick to San Diego flights
Luton to Las Vegas flights
London City to San Diego flights
Stansted to San Diego flights
Edinburgh to San Francisco flights
Heathrow to Burbank flights
Gatwick to San Jose flights
Heathrow to Oakland flights
Gatwick to Burbank flights
Manchester to San Francisco flights
Gatwick to Oakland flights
Edinburgh to Las Vegas flights
Birmingham to Los Angeles flights
Manchester to Ontario flights
Manchester to San Diego flights
Edinburgh to Los Angeles flights
Birmingham to San Francisco flights
Manchester to Santa Ana flights
Birmingham to Las Vegas flights
Gatwick to Santa Ana flights
Gatwick to Ontario flights
Manchester to Long Beach flights
Heathrow to Sacramento flights
Leeds to San Diego flights
London City to San Jose flights
Newcastle upon Tyne to Las Vegas flights
Leeds to Los Angeles flights
Southampton to Los Angeles flights
Birmingham to Long Beach 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 29 January 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£231Average£556FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£326Average£467FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£329Average£533FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£343Average£540FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
SWISSCheapest£343Average£428FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Scandinavian AirlinesCheapest£348Average£525FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£350Average£444FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapest£358Average£505FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£363Average£460FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£363Average£469FlexibilityNo 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.

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.