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Cheap flights from London Heathrow Airport to Fremont from £377

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
31 Aug — 7 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Fremont are usually found in February or September, booked 23 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Heathrow to Fremont

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Fremont
Explore the most affordable flight options available from Heathrow to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2026.

Fri 6/1110:05
LHR
-
SFO
Nonstop11h 15m
United Airlines
Tue 10/1112:50
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 28/7£452
Sun 15/1106:20
LHR
-
SFO
2 stops23h 43m
Delta
Mon 23/1110:38
SFO
-
LHR
1 stop16h 02m
Delta
Deal found 31/7£453
Tue 15/918:45
LHR
-
SFO
1 stop27h 50m
TAP AIR PORTUGAL
Tue 22/916:20
SFO
-
LHR
1 stop22h 35m
TAP AIR PORTUGAL
Deal found 1/8£453
Tue 29/913:00
LHR
-
SFO
Nonstop11h 00m
Multiple Airlines
Tue 29/919:45
SFO
-
LHR
Nonstop10h 25m
Multiple Airlines
Deal found 28/7£454
Mon 9/1111:45
LHR
-
SFO
Nonstop11h 10m
British Airways
Wed 11/1117:25
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 31/7£455
Sat 26/1213:45
LHR
-
SFO
Nonstop11h 10m
United Airlines
Sat 2/119:01
SFO
-
LHR
1 stop30h 39m
United Airlines
Deal found 28/7£455
Tue 29/1215:20
LHR
-
SFO
1 stop15h 43m
United Airlines
Wed 6/107:00
SFO
-
LHR
1 stop16h 40m
United Airlines
Deal found 28/7£456
Sat 26/916:00
LHR
-
SFO
2 stops25h 30m
Lufthansa
Fri 2/1018:55
SFO
-
LHR
2 stops17h 45m
Lufthansa
Deal found 27/7£457
Fri 9/1012:05
LHR
-
SFO
2 stops17h 42m
Multiple Airlines
Tue 13/1008:28
SFO
-
LHR
2 stops17h 07m
Multiple Airlines
Deal found 30/7£458
Thu 3/908:45
LHR
-
SFO
1 stop15h 30m
SWISS
Sun 13/919:35
SFO
-
LHR
1 stop14h 15m
SWISS
Deal found 29/7£458
Sun 27/909:30
LHR
-
SFO
1 stop19h 17m
Air Canada
Fri 2/1008:10
SFO
-
LHR
1 stop14h 20m
Air Canada
Deal found 28/7£459
Wed 9/909:50
LHR
-
SFO
1 stop14h 05m
British Airways
Mon 14/913:27
SFO
-
LHR
1 stop13h 38m
British Airways
Deal found 31/7£460

Find flight deals from Heathrow to Fremont

Keep the following information in mind while searching for Heathrow to Fremont flight deals. Data was last updated 1 August 2026.

Round-trip from

£452

One-way from

£377

Popular in

December

Cheapest in

February

Average price

£595
United Airlines
  • United Airlines
  • 6/11-8/11
  • Nonstop
  • 21h 45m total
  • London to Fremont
Search Deals
14/10
  • 14/10
  • 3 total stops
  • 32h 13m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 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 Heathrow 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 1 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 29/9

13:00-16:00

Nonstop11h 00m

San Francisco

Tue 29/9

19:45-14:10

Nonstop10h 25m

£454

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 9/9

09:50-15:55

1 stop14h 05m

San Francisco

Tue 15/9

10:31-07:40

1 stop13h 09m

£487

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 29/8

13:30-19:45

1 stop14h 15m

San Francisco

Sat 12/9

19:45-14:10

Nonstop10h 25m

£492

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 27/8

16:15-19:10

Nonstop10h 55m

San Francisco

Thu 3/9

21:15-20:40

1 stop15h 25m

£502

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 28/8

14:50-22:55

1 stop16h 05m

San Francisco

Thu 10/9

10:43-09:40

1 stop14h 57m

£505

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 9/10

07:00-16:15

2 stops17h 15m

San Francisco

Mon 12/10

19:35-19:20

1 stop15h 45m

£507

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 4/9

08:40-16:15

1 stop15h 35m

San Francisco

Fri 4/9

23:59-07:55

1 stop23h 56m

£507

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 21/9

10:35-13:35

Nonstop11h 00m

San Francisco

Mon 28/9

16:45-11:10

Nonstop10h 25m

£512

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 27/8

10:35-13:35

Nonstop11h 00m

San Francisco

Wed 9/9

12:35-12:35

1 stop16h 00m

£512

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 15/9

13:00-16:00

Nonstop11h 00m

San Francisco

Tue 22/9

12:50-07:25

Nonstop10h 35m

£515

Flights are sorted by cheapest return flights first.

Deals found on 31/7

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Heathrow 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 Heathrow Airport to Fremont

What is the cheapest time of day to fly from LHR to FR8?

Find hourly flight availability from Heathrow 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 1 August 2026.

When flying from London Heathrow Airport 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 Heathrow Airport to Fremont

Explore weekly flight availability from Heathrow 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 1 August 2026.

The most flights from LHR to FR8 are scheduled on a Wednesday (44 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 on average).

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

Airfare is below average for this route at the moment.
London Heathrow Airport to Fremont flights typically cost between £511 and £693 in November.
The cheapest return price found within the last 5 days was £452 on United Airlines (6 Nov–8 Nov).

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 1 August 2026.
Get a feel of what it's like to fly with Austrian Airlines,Virgin Atlantic, andUnited Airlines from London Heathrow Airport to Fremont by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

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
950 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

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
950 reviews
Check prices

Crew

8.1

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

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
10,062 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

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
8,174 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

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
8,136 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

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 Heathrow 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 Heathrow Airport to Fremont?

    British Airways and United Airlines can get you from London Heathrow Airport to Fremont in just under 10h 55m. Your travel time can differ by up to 3h 10m. Airlines will cover a distance of 5350 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at £270. Virgin Atlantic flights start at £299 while deals on Iberia start at £325 one-way.

  • What are the most reliable airlines from London Heathrow Airport 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 Heathrow Airport to Fremont on time: SAUDIA (100%), Air Canada (80%), Austrian Airlines (80%).

  • What are the cheapest flights from London Heathrow Airport to Fremont?

    On average you can expect to pay £1,610 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £321 while the most popular route, (London Heathrow - San Francisco) is currently priced at £332.

  • Can I find deals for flights from Heathrow to Fremont that include hotel bookings?

    Yes. In addition to deals on Heathrow to Fremont flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Fremont?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Fremont.

  • Can I find deals for business class flights from Heathrow to Fremont?

    Yes. Cheapflights offers flight deals from Heathrow 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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Top 10 airlines flying from Heathrow to Fremont

Discover the top 10 airlines that operate flights from Heathrow 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 1 August 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£275Average£677FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£349Average£431FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£353Average£575FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£359Average£477FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£366Average£544FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£371Average£516FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£374Average£500FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Scandinavian AirlinesCheapest£376Average£481FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air CanadaCheapest£377Average£593FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£379Average£566FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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 Heathrow to Fremont?

Deals for Heathrow 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 Heathrow to Fremont?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Fremont from Heathrow.

Can Cheapflights find flights from Heathrow to Fremont with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Fremont with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Fremont become cheaper?

Yes! Start tracking prices for Heathrow to Fremont flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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