How long is the flight from London Heathrow Airport to Fremont?

United Airlines and British Airways can get you from London Heathrow Airport to Fremont in just under 14h 50m. Your travel time can differ by up to 4h 45m. 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 £271. Virgin Atlantic flights start at £325 while deals on Iberia start at £326 one-way.

In terms of precipitation, rainfall in Fremont ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit Fremont when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Fremont, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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

On average you can expect to pay £1,679 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £343 while the most popular route, (London Heathrow - San Francisco) is currently priced at £398.

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: Air Canada (83%), Austrian Airlines (83%), United Airlines (83%).

What are the most popular airlines that fly from London Heathrow Airport to Fremont?

Virgin Atlantic, British Airways and Lufthansa are the most popular airlines when flying from London Heathrow Airport to Fremont.

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.

£411+ Cheap Flights from London Heathrow Airport to Fremont

Q: 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 £521 and £703 in October. The cheapest return price found within the last 5 days was £451 on British Airways (16 Oct–19 Oct).

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

Best

Direct

Last-minute

One-way

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 10 July 2026.

Fri 16/1010:45

LHR

SFO

Nonstop11h 05m

British Airways

Mon 19/1016:35

SFO

LHR

Nonstop10h 25m

British Airways

Deal found 9/7£451

Mon 20/708:00

LHR

SFO

1 stop18h 49m

United Airlines

Tue 20/1008:55

SFO

LHR

1 stop17h 15m

United Airlines

Deal found 5/7£452

Tue 1/906:40

LHR

SFO

1 stop16h 00m

Scandinavian Airlines

Sat 5/916:45

SFO

LHR

1 stop17h 45m

Scandinavian Airlines

Deal found 9/7£453

Thu 12/1117:50

LHR

SFO

1 stop25h 55m

Virgin Atlantic

Thu 26/1111:30

SFO

LHR

1 stop14h 45m

Virgin Atlantic

Deal found 6/7£463

Wed 4/1120:25

LHR

SFO

1 stop23h 20m

Virgin Atlantic

Wed 18/1106:00

SFO

LHR

1 stop18h 45m

Virgin Atlantic

Deal found 8/7£465

Mon 16/1109:00

LHR

SFO

1 stop15h 30m

SWISS

Mon 30/1119:25

SFO

LHR

1 stop14h 25m

SWISS

Deal found 9/7£466

Tue 17/1120:25

LHR

SFO

1 stop23h 20m

Virgin Atlantic

Mon 23/1106:00

SFO

LHR

1 stop20h 00m

Virgin Atlantic

Deal found 7/7£467

Mon 14/907:25

LHR

SFO

1 stop15h 05m

Lufthansa

Fri 25/912:55

SFO

LHR

Nonstop10h 30m

Lufthansa

Deal found 9/7£468

Fri 21/808:30

LHR

SFO

1 stop14h 45m

Lufthansa

Sat 5/913:00

SFO

LHR

Nonstop10h 25m

Lufthansa

Deal found 10/7£469

Fri 11/914:30

LHR

SFO

Nonstop11h 10m

British Airways

Fri 25/916:35

SFO

LHR

Nonstop10h 25m

British Airways

Deal found 8/7£471

Fri 20/1106:30

LHR

SFO

1 stop13h 15m

Multiple Airlines

Thu 26/1111:30

SFO

LHR

1 stop13h 30m

Multiple Airlines

Deal found 8/7£471

Thu 27/808:45

LHR

SFO

1 stop15h 50m

Multiple Airlines

Wed 9/908:10

SFO

LHR

1 stop14h 45m

Multiple Airlines

Deal found 6/7£472

Find flight deals from Heathrow to Fremont

Round-trip from	£451
One-way from	£411
Popular in	December
Cheapest in	February
Average price	£611

British Airways
16/10-19/10
Nonstop
21h 30m total
London to Fremont

Search Deals

18/8
2 total stops
47h 10m total
London to Fremont

Search Deals

Highest demand for flights based on searches. 0% potential increase in price (£4 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% 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

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

Fri 4/9

07:25-19:00

1 stop19h 35m

San Francisco

Sat 5/9

18:45-10:10

1 stop31h 25m

£474

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 4/12

09:00-16:30

1 stop15h 30m

San Francisco

Tue 8/12

16:21-13:30

1 stop13h 09m

£489

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 27/8

11:10-18:00

1 stop14h 50m

San Francisco

Wed 9/9

09:02-06:50

1 stop13h 48m

£521

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 29/8

14:50-22:55

2 stops16h 05m

San Francisco

Sat 5/9

08:45-07:55

1 stop15h 10m

£521

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 6/1

11:45-14:55

Nonstop11h 10m

San Francisco

Wed 13/1

17:25-11:50

Nonstop10h 25m

£523

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 28/8

13:00-16:00

Nonstop11h 00m

San Francisco

Fri 4/9

14:20-11:55

1 stop13h 35m

£536

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 11/9

07:00-16:15

2 stops17h 15m

San Francisco

Sun 20/9

19:35-21:30

2 stops17h 55m

£555

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 1/9

19:50-14:40

2 stops26h 50m

San Francisco

Sat 5/9

16:45-18:50

2 stops18h 05m

£620

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 8/8

08:00-18:49

1 stop18h 49m

San Francisco

Sun 27/9

06:10-06:45

1 stop16h 35m

£624

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 21/7

08:00-18:49

1 stop18h 49m

San Francisco

Mon 24/8

14:20-16:25

1 stop18h 05m

£650

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 21 resultsSorted by cheapest first

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.

LHR-SFO

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

LHR-FR8

LHR-SFO

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

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

The most flights from LHR to FR8 are scheduled on a Monday (42 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (42 on average).

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

Reviews of airlines servicing Fremont

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

943 reviews

Check prices

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

943 reviews

Austrian Airlines

7.6

Good

943 reviews

Check prices

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

943 reviews

Check prices

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

9,975 reviews

Austrian Airlines

7.6

Good

943 reviews

Check prices

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

8,132 reviews

Austrian Airlines

7.6

Good

943 reviews

Check prices

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

8,107 reviews

Austrian Airlines

7.6

Good

943 reviews

Check prices

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

How long is the flight from London Heathrow Airport to Fremont?
United Airlines and British Airways can get you from London Heathrow Airport to Fremont in just under 14h 50m. Your travel time can differ by up to 4h 45m. 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 £271. Virgin Atlantic flights start at £325 while deals on Iberia start at £326 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: Air Canada (83%), Austrian Airlines (83%), United Airlines (83%).
What are the cheapest flights from London Heathrow Airport to Fremont?
On average you can expect to pay £1,679 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £343 while the most popular route, (London Heathrow - San Francisco) is currently priced at £398.
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

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£321	Average£680	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
SWISS	Cheapest£350	Average£433	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Aer Lingus	Cheapest£355	Average£579	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Scandinavian Airlines	Cheapest£360	Average£479	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	Cheapest£360	Average£471	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Virgin Atlantic	Cheapest£368	Average£543	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Brussels Airlines	Cheapest£373	Average£533	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Austrian Airlines	Cheapest£375	Average£500	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Air Canada	Cheapest£378	Average£575	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Lufthansa	Cheapest£380	Average£548	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights

Fly with Cheapflights

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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Cheap flights from London Heathrow Airport to Fremont from £411

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Fremont

Cheapest flights from Heathrow to FremontExplore 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 10 July 2026.

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 10 July 2026.

Best flights from Heathrow to FremontDiscover carefully curated flight deals from Heathrow to Fremont that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 July 2026.

Discover carefully curated flight deals from Heathrow to Fremont that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 July 2026.

Direct flights from Heathrow to FremontExplore direct flight options from Heathrow to Fremont based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 July 2026.

Explore direct flight options from Heathrow to Fremont based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 July 2026.

Last-minute flights from Heathrow to FremontDiscover last-minute flight deals from Heathrow to Fremont. Data last updated 10 July 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Fremont. Data last updated 10 July 2026 and is based on user searches.

One-way flights from Heathrow to FremontSearch for one-way flight options from Heathrow to Fremont. Find affordable one-way fares based on user searches. Data last updated 10 July 2026.

Search for one-way flight options from Heathrow to Fremont. Find affordable one-way fares based on user searches. Data last updated 10 July 2026.

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 10 July 2026.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Fremont that are best for you.

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.

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 10 July 2026.

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 10 July 2026.

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

Reviews of airlines servicing Fremont

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.

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?

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

What are the most reliable airlines from London Heathrow Airport to Fremont?

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

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

How can I find direct flights from Heathrow to Fremont?

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

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 Heathrow to Fremont

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Fremont by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Search flights from Heathrow to Fremont by cabin class

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Heathrow and Fremont flights

Browse other Heathrow and Fremont flight options. Last updated on 10 July 2026.

Other flights from Heathrow

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Heathrow to Fremont flights

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Top 10 airlines flying from Heathrow to Fremont

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

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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 10 July 2026.

Best flights from Heathrow to Fremont
Discover carefully curated flight deals from Heathrow to Fremont that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 July 2026.

Direct flights from Heathrow to Fremont
Explore direct flight options from Heathrow to Fremont based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 July 2026.

Last-minute flights from Heathrow to Fremont
Discover last-minute flight deals from Heathrow to Fremont. Data last updated 10 July 2026 and is based on user searches.

One-way flights from Heathrow to Fremont
Search for one-way flight options from Heathrow to Fremont. Find affordable one-way fares based on user searches. Data last updated 10 July 2026.