Cheap flights from London Heathrow Airport to Fremont from £366

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
22 Jan — 29 Jan1
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 45 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 23 December 2025.

Wed 31/1211:55LHR - SFO
1 stop15h 51mFinnair
Mon 12/120:40SFO - LHR
Nonstop10h 30mFinnair
Deal found 22/12£471
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Fri 9/119:10SFO - LHR
1 stop19h 30mTAP AIR PORTUGAL
Deal found 20/12£476
Sat 27/1213:45LHR - SFO
Nonstop11h 15mMultiple Airlines
Sat 3/112:50SFO - LHR
Nonstop10h 35mMultiple Airlines
Deal found 20/12£480
Sat 27/1210:05LHR - SFO
Nonstop11h 15mBrussels Airlines
Wed 31/1208:25SFO - LHR
1 stop13h 30mBrussels Airlines
Deal found 21/12£483
Fri 26/1211:45LHR - SFO
Nonstop11h 15mBritish Airways
Sat 10/117:30SFO - LHR
Nonstop10h 30mBritish Airways
Deal found 20/12£485
Thu 25/1219:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 22/12£485
Sat 27/1213:45LHR - SFO
Nonstop11h 15mAustrian Airlines
Thu 1/108:20SFO - LHR
1 stop14h 20mAustrian Airlines
Deal found 21/12£487
Fri 26/1213:45LHR - SFO
Nonstop11h 15mAustrian Airlines
Thu 1/108:20SFO - LHR
1 stop14h 20mAustrian Airlines
Deal found 21/12£491
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 21/12£494
Thu 25/1216:30LHR - SFO
1 stop31h 35mTAP AIR PORTUGAL
Fri 23/119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 20/12£494

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 23 December 2025.

Round-trip from

£457

One-way from

£366

Popular in

December

Cheapest in

February

Average price

£654
British Airways
  • British Airways
  • 23/5-30/5
  • Nonstop
  • 21h 30m total
  • London to Fremont
28/1
  • 28/1
  • 3 total stops
  • 29h 30m total
  • London to Fremont
Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 23 December 2025.
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

Tue 26/5

10:45-13:50

Nonstop11h 05m

San Francisco

Sat 30/5

22:45-21:40

1 stop14h 55m

£471

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 2/6

10:45-13:50

Nonstop11h 05m

San Francisco

Wed 17/6

09:15-06:50

1 stop13h 35m

£472

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 13/4

19:50-14:40

2 stops26h 50m

San Francisco

Sun 19/4

16:45-16:25

2 stops15h 40m

£477

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 1/4

14:20-17:30

Nonstop11h 10m

San Francisco

Wed 15/4

10:41-07:20

1 stop12h 39m

£487

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/2

14:25-16:30

2 stops34h 05m

San Francisco

Tue 10/2

19:25-17:50

1 stop14h 25m

£489

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 30/3

12:45-15:45

Nonstop11h 00m

San Francisco

Wed 8/4

17:55-12:15

Nonstop10h 20m

£493

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 10/3

17:25-17:30

2 stops31h 05m

San Francisco

Mon 16/3

20:25-17:50

1 stop14h 25m

£495

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 24/3

11:40-15:40

Nonstop11h 00m

San Francisco

Sat 11/4

09:49-09:50

1 stop16h 01m

£496

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 14/4

19:05-00:14

2 stops37h 09m

San Francisco

Wed 22/4

10:19-08:05

1 stop13h 46m

£497

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 14/4

19:05-00:14

2 stops37h 09m

San Francisco

Thu 23/4

14:46-08:00

1 stop33h 14m

£497

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 23 results
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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 19 December 2025.

Booking 45 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 £354). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £450). 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 23 December 2025.

It’s typically best to fly out from London Heathrow Airport to Fremont in the evening. Doing so could potentially save you 35% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from London Heathrow Airport to Fremont?

Use this chart to determine the cheapest time to fly return from Heathrow to Fremont. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London Heathrow Airport to Fremont flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 23 December 2025.

The most flights from LHR to FR8 are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 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 23 December 2025.
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.

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

Overall

7.6

Boarding

7.6

Comfort

7.3

Crew

8.1

Entertainment

6.8

Food

6.8

Reviews

1 / 20
10.0
Excellent

Andrew,Sept 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

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, Scandinavian Airlines, and SWISS can get you from London Heathrow Airport to Fremont in just under 11h 05m. Your travel time can differ by up to 23h. 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 £249. TAP AIR PORTUGAL flights start at £270 while deals on WestJet start at £300 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 New Zealand (88%), Air France (86%), Delta (86%).

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

    On average you can expect to pay £2,024 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £372 while the most popular route, (London Heathrow - San Francisco) is currently priced at £310.

  • 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 £354). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £450). 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

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

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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£237Average£552FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£335Average£480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£338Average£552FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£352Average£555FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£354Average£539FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
SWISSCheapest£358Average£408FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£359Average£462FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£375Average£545FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£376Average£597FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£380Average£452FlexibilityNo cancel feeOn-time75%
Search KLM 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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