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Cheap flights from London Heathrow Airport to Fremont from £359

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
15 Feb — 22 Feb1
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

Keep the following information in mind while searching for Heathrow to Fremont flight deals. Data was last updated 16 January 2026.

Round-trip from

£390

One-way from

£359

Popular in

December

Cheapest in

February

Average price

£485
Air Canada
  • Air Canada
  • 26/1-3/2
  • 3 total stops
  • 45h 17m total
  • London to Fremont
Search Deals
23/1
  • 23/1
  • 3 total stops
  • 26h 40m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 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

Find 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 16 January 2026.

Mon 26/118:00
LHR
-
SFO
2 stops31h 36m
Air Canada
Mon 2/214:30
SFO
-
LHR
1 stop32h 00m
Air Canada
Deal found 14/1£390
Wed 28/109:50
LHR
-
SFO
1 stop13h 45m
British Airways
Sat 31/122:30
SFO
-
LHR
1 stop15h 40m
British Airways
Deal found 14/1£391
Sat 21/215:20
LHR
-
SFO
1 stop15h 44m
United Airlines
Sun 1/313:20
SFO
-
LHR
1 stop14h 30m
United Airlines
Deal found 14/1£392
Sat 14/213:45
LHR
-
SFO
Nonstop11h 15m
Austrian Airlines
Thu 7/513:40
SFO
-
LHR
1 stop14h 10m
Austrian Airlines
Deal found 15/1£392
Thu 29/115:00
LHR
-
SFO
2 stops26h 38m
Air Canada
Fri 13/223:31
SFO
-
LHR
1 stop22h 59m
Air Canada
Deal found 14/1£393
Fri 20/213:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sat 7/312:50
SFO
-
LHR
Nonstop10h 35m
Multiple Airlines
Deal found 13/1£394
Wed 25/313:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Mon 30/319:30
SFO
-
LHR
Nonstop10h 40m
Multiple Airlines
Deal found 14/1£394
Sat 21/213:45
LHR
-
SFO
Nonstop11h 15m
Multiple Airlines
Sun 1/319:25
SFO
-
LHR
1 stop14h 25m
Multiple Airlines
Deal found 14/1£395
Sat 21/209:50
LHR
-
SFO
1 stop13h 45m
British Airways
Sat 7/306:20
SFO
-
LHR
1 stop23h 40m
British Airways
Deal found 15/1£396
Wed 4/310:05
LHR
-
SFO
Nonstop11h 15m
Lufthansa
Sat 21/318:25
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 14/1£397
Sun 25/113:45
LHR
-
SFO
Nonstop11h 15m
Austrian Airlines
Sat 21/212:50
SFO
-
LHR
Nonstop10h 35m
Austrian Airlines
Deal found 14/1£397
Thu 29/110:05
LHR
-
SFO
Nonstop11h 15m
Austrian Airlines
Fri 13/212:50
SFO
-
LHR
Nonstop10h 35m
Austrian Airlines
Deal found 14/1£398

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 16 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

Fri 20/2

11:35-20:10

2 stops16h 35m

San Francisco

Sun 1/3

13:20-11:50

1 stop14h 30m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

11:35-20:07

2 stops16h 32m

San Francisco

Sun 1/2

21:30-20:35

1 stop15h 05m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

11:35-20:07

2 stops16h 32m

San Francisco

Wed 4/2

10:37-09:40

2 stops15h 03m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 12/2

11:35-20:10

2 stops16h 35m

San Francisco

Fri 20/2

16:15-13:30

1 stop13h 15m

£392

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 7/3

07:50-15:35

1 stop15h 45m

San Francisco

Sun 5/4

16:59-15:05

1 stop14h 06m

£394

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 27/1

09:50-15:35

1 stop13h 45m

San Francisco

Sat 14/2

14:27-12:15

1 stop13h 48m

£396

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 14/2

07:50-15:35

1 stop15h 45m

San Francisco

Fri 20/2

10:36-08:15

1 stop13h 39m

£397

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 28/2

11:35-20:10

2 stops16h 35m

San Francisco

Sat 7/3

08:30-06:30

1 stop14h 00m

£397

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 17/4

10:35-13:40

Nonstop11h 05m

San Francisco

Fri 24/4

16:35-11:10

Nonstop10h 35m

£398

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 27/4

10:35-13:40

Nonstop11h 05m

San Francisco

Thu 30/4

16:35-11:10

Nonstop10h 35m

£399

Flights are sorted by cheapest return flights first.

Deals found on 15/1

Showing 1-10 of 22 results
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2
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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 9 January 2026.

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 £353). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £444). 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 16 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 16 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).

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 16 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

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Crew

8.1

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

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Crew

8.1

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

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Crew

8.1

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
9,164 reviews
Austrian Airlines
7.6
Good
894 reviews
Check prices

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Crew

8.1

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
7,718 reviews
Austrian Airlines
7.6
Good
894 reviews
Check prices

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Crew

8.1

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
7,680 reviews
Austrian Airlines
7.6
Good
894 reviews
Check prices

Entertainment

6.8

Food

6.8

Comfort

7.3

Boarding

7.6

Overall

7.6

Crew

8.1

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 British Airways can get you from London Heathrow Airport to Fremont in just under 15h 45m. Your travel time can differ by up to 50m. 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 £250. TAP AIR PORTUGAL flights start at £271 while deals on WestJet start at £301 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 £1,990 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £341 while the most popular route, (London Heathrow - San Francisco) is currently priced at £323.

  • 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 £353). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £444). 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.
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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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£238Average£572FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£336Average£480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£338Average£551FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£353Average£556FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£354Average£533FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
SWISSCheapest£358Average£408FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£359Average£456FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
British AirwaysCheapest£376Average£621FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£376Average£548FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£379Average£454FlexibilityNo 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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