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Cheap flights from London Heathrow Airport 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
24 Feb — 3 Mar1
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 25 January 2026.

Thu 14/508:40
LHR
-
SFO
1 stop15h 35m
Multiple Airlines
Sat 23/513:00
SFO
-
LHR
Nonstop10h 25m
Multiple Airlines
Deal found 24/1£375
Fri 13/314:30
LHR
-
SFO
2 stops32h 04m
Air Canada
Wed 18/322:45
SFO
-
LHR
2 stops25h 25m
Air Canada
Deal found 23/1£376
Mon 16/213:45
LHR
-
SFO
Nonstop11h 15m
Lufthansa
Mon 23/217:25
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 23/1£377
Tue 17/213:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sun 22/212:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 25/1£378
Thu 12/206:00
LHR
-
SFO
1 stop18h 30m
SWISS
Sun 15/219:25
SFO
-
LHR
2 stops18h 00m
SWISS
Deal found 23/1£379
Fri 30/109:00
LHR
-
SFO
2 stops19h 53m
Air Canada
Thu 12/213:20
SFO
-
LHR
1 stop14h 30m
Air Canada
Deal found 23/1£380
Fri 30/110:05
LHR
-
SFO
Nonstop11h 15m
United Airlines
Thu 12/217:25
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 23/1£380
Sat 31/110:05
LHR
-
SFO
Nonstop11h 15m
United Airlines
Sat 7/212:50
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 23/1£381
Sat 31/113:45
LHR
-
SFO
Nonstop11h 15m
United Airlines
Sat 14/217:25
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 24/1£382
Sat 31/110:05
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sat 14/212:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 24/1£383

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 25 January 2026.

Round-trip from

£375

One-way from

£354

Popular in

December

Cheapest in

February

Average price

£479
Austrian Airlines
  • Austrian Airlines
  • 14/5-23/5
  • 1 total stop
  • 26h 00m total
  • London to Fremont
Search Deals
JetBlue
  • JetBlue
  • 8/2
  • 1 total stop
  • 21h 39m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£17 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 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 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 25 January 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Fremont that are best for you.

Fly from

Heathrow

Fly to

Fremont

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 14/3

06:35-15:50

1 stop16h 15m

San Francisco

Fri 20/3

14:30-06:30

1 stop33h 00m

£378

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 10/2

10:05-13:20

Nonstop11h 15m

San Francisco

Thu 19/2

12:50-07:25

Nonstop10h 35m

£381

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 14/3

13:45-18:00

Nonstop11h 15m

San Francisco

Tue 17/3

18:25-12:00

Nonstop10h 35m

£381

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 8/2

13:45-17:00

Nonstop11h 15m

San Francisco

Thu 19/2

17:25-12:00

Nonstop10h 35m

£381

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 10/2

13:45-17:00

Nonstop11h 15m

San Francisco

Sat 21/2

17:25-12:00

Nonstop10h 35m

£381

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 21/2

10:05-13:20

Nonstop11h 15m

San Francisco

Sun 1/3

12:50-07:25

Nonstop10h 35m

£382

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/3

13:45-17:00

Nonstop11h 15m

San Francisco

Tue 10/3

18:25-12:00

Nonstop10h 35m

£386

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/3

10:05-14:20

Nonstop11h 15m

San Francisco

Fri 27/3

13:50-07:25

Nonstop10h 35m

£386

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 20/2

13:45-17:00

Nonstop11h 15m

San Francisco

Sat 28/3

19:30-14:10

Nonstop10h 40m

£386

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/2

17:00-20:20

Nonstop11h 20m

San Francisco

Wed 18/2

12:50-07:25

Nonstop10h 35m

£386

Flights are sorted by cheapest return flights first.

Deals found on 23/1

Showing 1-10 of 22 results
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

How far ahead should I book a flight from London Heathrow Airport to Fremont?

Use this chart to determine the optimal time to book a return flight from Heathrow to Fremont. Price data was last updated on 23 January 2026.

Booking 23 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Fremont. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Fremont?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Fremont (average of £347). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £436). 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 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 25 January 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 25 January 2026.

The most flights from LHR to FR8 are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (25 on average).

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 25 January 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
894 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

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
7.6
Good
894 reviews
Austrian Airlines
7.6
Good
894 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

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
7.6
Good
894 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

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
9,199 reviews
Austrian Airlines
7.6
Good
894 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

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
7,747 reviews
Austrian Airlines
7.6
Good
894 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

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
7,699 reviews
Austrian Airlines
7.6
Good
894 reviews
Check prices

Crew

8.1

Overall

7.6

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Food

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 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?

    United Airlines and Austrian Airlines can get you from London Heathrow Airport to Fremont in just under 11h 15m. Your travel time can differ by up to 5h. 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 Scandinavian Airlines, which is currently one of the cheapest options available, starting at £258. TAP AIR PORTUGAL flights start at £266 while deals on WestJet start at £296 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: KLM (82%), Air France (82%), Delta (82%).

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

    On average you can expect to pay £2,017 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £345 while the most popular route, (London Heathrow - San Francisco) is currently priced at £306.

  • 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to Fremont?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Fremont (average of £347). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £436). 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 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 25 January 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£234Average£562FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£330Average£472FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£332Average£539FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£347Average£546FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
SWISSCheapest£347Average£401FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Scandinavian AirlinesCheapest£352Average£530FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£353Average£446FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapest£361Average£511FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£367Average£465FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
British AirwaysCheapest£368Average£609FlexibilityNo cancel feeOn-time70%
Search British Airways 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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