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Cheap flights from London to Fremont from £361

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London to Fremont are usually found in February or September, booked 41 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 14 August 2026.

Fri 11/907:30 -
1 stop15h 50m
Fri 18/921:15 -
1 stop16h 10m
Deal found 12/8£440
Fri 11/906:50 -
2 stops18h 33m
Thu 17/900:45 -
1 stop23h 10m
Deal found 11/8£441
Thu 17/909:25 -
1 stop14h 50m
Tue 29/919:35 -
1 stop14h 15m
Deal found 12/8£441
Tue 24/1106:30 -
1 stop13h 15m
Sat 16/116:40 -
Nonstop10h 15m
Deal found 13/8£442
Sat 14/1118:40 -
1 stop29h 50m
Tue 24/1119:25 -
1 stop28h 15m
Deal found 12/8£442
Tue 24/1106:30 -
1 stop13h 15m
Mon 18/116:40 -
Nonstop10h 15m
Deal found 13/8£442
Thu 10/908:45 -
1 stop15h 30m
Thu 17/905:00 -
1 stop20h 40m
Deal found 13/8£443
Wed 14/1009:15 -
1 stop15h 20m
Wed 4/1119:25 -
1 stop13h 40m
Deal found 10/8£443
Thu 10/916:15 -
Nonstop11h 00m
Wed 23/912:50 -
Nonstop10h 35m
Deal found 10/8£444
Sun 8/1108:40 -
1 stop15h 50m
Sun 8/1119:25 -
1 stop14h 25m
Deal found 13/8£444
Tue 22/916:25 -
1 stop30h 05m
Tue 29/921:05 -
1 stop34h 30m
Deal found 10/8£444
Wed 9/918:35 -
1 stop30h 00m
Sun 1/1119:25 -
1 stop14h 25m
Deal found 8/8£445

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 14 August 2026.

Round-trip from

£440

One-way from

£361

Popular in

December

Cheapest in

February

Average price

£600
Lufthansa
  • Lufthansa
  • 11/9-18/9
  • 2 total stops
  • 32h 00m total
  • London to Fremont
Search Deals
21/9
  • 21/9
  • 2 total stops
  • 32h 35m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£2 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 14 August 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
Fastest return journey

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Tue 6/10

10:35-13:35

Nonstop11h 00m

San Francisco

Wed 21/10

16:45-11:10

Nonstop10h 25m

£444

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Fri 2/10

06:30-12:40

1 stop14h 10m

San Francisco

Mon 12/10

12:55-07:25

Nonstop10h 30m

£448

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Wed 28/10

11:45-15:55

Nonstop11h 10m

San Francisco

Sat 7/11

17:25-11:50

Nonstop10h 25m

£454

LondonSan Francisco

LGW London Gatwick - SFO San Francisco

LGWSFO

London Gatwick

Tue 24/11

10:00-22:24

2 stops20h 24m

San Francisco

Fri 15/1

11:30-15:45

2 stops20h 15m

£469

LondonSan Francisco

LGW London Gatwick - SFO San Francisco

LGWSFO

London Gatwick

Sun 24/1

10:00-20:00

2 stops18h 00m

San Francisco

Thu 28/1

11:30-15:45

2 stops20h 15m

£472

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Thu 8/10

17:00-22:49

1 stop13h 49m

San Francisco

Sat 17/10

11:00-15:05

1 stop20h 05m

£473

LondonSan Francisco

LCY London City - SFO San Francisco

LCYSFO

London City

Wed 28/10

10:00-21:53

2 stops18h 53m

San Francisco

Wed 4/11

06:00-07:15

2 stops17h 15m

£478

LondonSan Francisco

LHR London Heathrow - SFO San Francisco

LHRSFO

London Heathrow

Sat 5/9

06:15-16:16

2 stops18h 01m

San Francisco

Fri 18/9

20:41-17:35

1 stop12h 54m

£482

LondonSan Francisco

LCY London City - SFO San Francisco

LCYSFO

London City

Thu 10/9

08:25-20:07

2 stops19h 42m

San Francisco

Wed 23/9

14:15-17:20

2 stops19h 05m

£482

LondonSan Francisco

LCY London City - SFO San Francisco

LCYSFO

London City

Mon 7/9

19:00-11:45

1 stop24h 45m

San Francisco

Mon 14/9

14:15-17:20

2 stops19h 05m

£483

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
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3
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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

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 14 August 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 14 August 2026.

The most flights from LON to FR8 are scheduled on a Wednesday (38 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (32 on average).

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

Airfare is below average for this route at the moment.
London to Fremont flights typically cost between £534 and £697 in September.
The cheapest return price found within the last 5 days was £440 on Lufthansa (11 Sept–18 Sept).

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 14 August 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
948 reviews
Check prices

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
Austrian Airlines
7.6
Good
948 reviews
Austrian Airlines
7.6
Good
948 reviews
Check prices

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
Virgin Atlantic
7.5
Good
694 reviews
Austrian Airlines
7.6
Good
948 reviews
Check prices

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
United Airlines
7.4
Good
10,112 reviews
Austrian Airlines
7.6
Good
948 reviews
Check prices

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
Lufthansa
6.8
Okay
8,188 reviews
Austrian Airlines
7.6
Good
948 reviews
Check prices

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
British Airways
6.7
Okay
8,157 reviews
Austrian Airlines
7.6
Good
948 reviews
Check prices

Crew

8.1

Food

6.8

Overall

7.6

Comfort

7.3

Boarding

7.6

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.

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 £444, Lufthansa can have you in Fremont from London in 11h. 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 TAP AIR PORTUGAL, with whom users have recently found tickets for as low as £269. However, be on the lookout for offers from Virgin Atlantic and Iberia, 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 (74%), Austrian Airlines (74%), United Airlines (74%).

  • What are the cheapest flights from London to Fremont?

    Looking at all options, your cheapest flight can be booked for £324. While the most popular route (London Heathrow - San Francisco) can be booked for £331 on average, our data indicates £1,393 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.

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 14 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£274Average£675FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£348Average£468FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£352Average£574FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£358Average£477FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£365Average£543FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£370Average£511FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£372Average£499FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapest£379Average£563FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£383Average£558FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£383Average£580FlexibilityNo cancel feeOn-time69%
Search United 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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