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Cheap flights from London Heathrow Airport to Fremont from £404

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 28/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
18 Aug — 25 Aug1
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 Wednesday or Thursday 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 19 July 2026.

Tue 27/1009:00
LHR
-
SFO
2 stops19h 30m
Air Canada
Sun 8/1109:00
SFO
-
LHR
2 stops18h 20m
Air Canada
Deal found 17/7£453
Sat 5/1208:55
LHR
-
SFO
2 stops20h 03m
Virgin Atlantic
Wed 9/1214:20
SFO
-
LHR
2 stops32h 30m
Virgin Atlantic
Deal found 18/7£454
Fri 18/909:30
LHR
-
SFO
2 stops18h 22m
Air Canada
Sat 19/908:10
SFO
-
LHR
1 stop14h 20m
Air Canada
Deal found 16/7£455
Sat 19/908:00
LHR
-
SFO
1 stop17h 23m
Lufthansa
Wed 30/916:10
SFO
-
LHR
1 stop34h 00m
Lufthansa
Deal found 16/7£456
Thu 17/908:45
LHR
-
SFO
1 stop15h 30m
Lufthansa
Tue 29/918:55
SFO
-
LHR
2 stops18h 30m
Lufthansa
Deal found 19/7£456
Thu 27/808:45
LHR
-
SFO
1 stop15h 30m
Multiple Airlines
Wed 9/913:54
SFO
-
LHR
1 stop14h 01m
Multiple Airlines
Deal found 16/7£457
Fri 20/1109:30
LHR
-
SFO
2 stops20h 00m
Multiple Airlines
Sat 28/1108:19
SFO
-
LHR
2 stops19h 01m
Multiple Airlines
Deal found 19/7£458
Sat 26/909:30
LHR
-
SFO
1 stop19h 17m
Multiple Airlines
Sat 3/1019:45
SFO
-
LHR
Nonstop10h 25m
Multiple Airlines
Deal found 16/7£459
Fri 9/1016:15
LHR
-
SFO
Nonstop11h 00m
Multiple Airlines
Sat 17/1012:55
SFO
-
LHR
Nonstop10h 30m
Multiple Airlines
Deal found 18/7£459
Sat 19/908:20
LHR
-
SFO
1 stop15h 10m
British Airways
Sat 26/909:02
SFO
-
LHR
1 stop13h 48m
British Airways
Deal found 19/7£460
Fri 9/1009:30
LHR
-
SFO
1 stop18h 20m
Lufthansa
Sat 10/1012:55
SFO
-
LHR
Nonstop10h 30m
Lufthansa
Deal found 19/7£461
Tue 11/811:05
LHR
-
SFO
1 stop18h 05m
United Airlines
Fri 14/819:50
SFO
-
LHR
Nonstop10h 20m
United Airlines
Deal found 18/7£462

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 19 July 2026.

Round-trip from

£453

One-way from

£404

Popular in

December

Cheapest in

February

Average price

£615
Air Canada
  • Air Canada
  • 27/10-8/11
  • 4 total stops
  • 37h 50m total
  • London to Fremont
Search Deals
Aer Lingus
  • Aer Lingus
  • 28/12
  • 2 total stops
  • 18h 45m 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 (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 19 July 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

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/10

15:20-19:45

Nonstop11h 25m

San Francisco

Sat 7/11

17:25-11:50

Nonstop10h 25m

£465

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 28/9

11:25-21:47

2 stops18h 22m

San Francisco

Mon 28/9

23:55-05:55

1 stop22h 00m

£466

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 20/9

09:30-20:47

1 stop19h 17m

San Francisco

Sat 10/10

16:35-13:20

1 stop12h 45m

£472

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/10

09:30-17:05

1 stop14h 35m

San Francisco

Sat 7/11

05:00-09:40

1 stop20h 40m

£492
Fastest return journey

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 17/8

10:35-13:35

Nonstop11h 00m

San Francisco

Sun 30/8

13:00-07:25

Nonstop10h 25m

£511

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 21/8

08:40-16:15

1 stop15h 35m

San Francisco

Mon 24/8

14:20-16:35

2 stops18h 15m

£511

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 21/8

10:35-13:35

Nonstop11h 00m

San Francisco

Sat 5/9

08:45-09:40

1 stop16h 55m

£515

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 2/9

16:15-19:10

Nonstop10h 55m

San Francisco

Mon 26/10

13:50-07:25

Nonstop10h 35m

£517

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 2/9

13:00-16:00

Nonstop11h 00m

San Francisco

Sat 19/9

12:35-09:40

1 stop13h 05m

£519

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 30/8

19:50-14:40

2 stops26h 50m

San Francisco

Sun 6/9

16:45-16:25

2 stops15h 40m

£557

Flights are sorted by cheapest return flights first.

Deals found on 19/7

Showing 1-10 of 23 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 19 July 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 19 July 2026.

The most flights from LHR to FR8 are scheduled on a Monday (44 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (38 on average).

How much does it cost for a return flight from London Heathrow Airport 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 19 July 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
947 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
Austrian Airlines
7.6
Good
947 reviews
Austrian Airlines
7.6
Good
947 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
Virgin Atlantic
7.5
Good
693 reviews
Austrian Airlines
7.6
Good
947 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
United Airlines
7.4
Good
10,015 reviews
Austrian Airlines
7.6
Good
947 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
Lufthansa
6.8
Okay
8,147 reviews
Austrian Airlines
7.6
Good
947 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
British Airways
6.7
Okay
8,126 reviews
Austrian Airlines
7.6
Good
947 reviews
Check prices

Crew

8.1

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.

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 11h 25m. Your travel time can differ by up to 6h 57m. 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 £323 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 £1,709 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £324 while the most popular route, (London Heathrow - San Francisco) is currently priced at £415.

  • 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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Alternative routes for Heathrow to Fremont

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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 19 July 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£320Average£677FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£349Average£431FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£353Average£577FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£359Average£469FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£366Average£544FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£371Average£524FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£374Average£495FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Scandinavian AirlinesCheapest£376Average£484FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air CanadaCheapest£377Average£593FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£379Average£558FlexibilityNo 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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