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Cheap flights from London Heathrow Airport to Fremont from £393

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Fremont are usually found in February or November, booked 82 days in advance, depart on a Tuesday or Thursday 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 13 June 2025.

Round-trip from

£393

Popular in

August

Cheapest in

February

Average price

£500
Virgin Atlantic
  • Virgin Atlantic
  • 1/9-8/9
  • 2 total stops
  • 65h 20m total
  • London to Fremont
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£72 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Heathrow to Fremont

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 13 June 2025.

Mon 1/911:45LHR - SFO
1 stop32h 00mVirgin Atlantic
Mon 8/920:55SFO - LHR
1 stop33h 20mVirgin Atlantic
Deal found 9/6£393
Mon 8/909:30LHR - SFO
2 stops19h 48mFinnair
Thu 18/916:37SFO - LHR
1 stop13h 58mFinnair
Deal found 12/6£394
Mon 3/1117:10LHR - SFO
Nonstop10h 20mDelta
Mon 17/1122:20SFO - LHR
Nonstop11h 25mDelta
Deal found 11/6£394
Tue 9/910:45LHR - SFO
Nonstop11h 05mBritish Airways
Tue 16/919:20SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 10/6£395
Sat 22/1106:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Fri 28/1119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 11/6£397
Sat 13/908:45LHR - SFO
1 stop15h 25mMultiple Airlines
Sat 20/916:05SFO - LHR
Nonstop10h 20mMultiple Airlines
Deal found 11/6£406
Sun 24/818:35LHR - SFO
1 stop25h 10mKLM
Sat 13/915:00SFO - LHR
1 stop14h 10mKLM
Deal found 10/6£411
Wed 10/921:05LHR - SFO
2 stops27h 25mScandinavian Airlines
Wed 8/1019:40SFO - LHR
1 stop14h 00mScandinavian Airlines
Deal found 10/6£414
Sat 13/914:05LHR - SFO
1 stop14h 31mAir Canada
Sat 20/916:35SFO - LHR
2 stops53h 55mAir Canada
Deal found 11/6£422
Fri 5/908:40LHR - SFO
1 stop15h 30mLufthansa
Sat 20/911:20SFO - LHR
1 stop17h 00mLufthansa
Deal found 11/6£425
Sun 24/820:00LHR - SFO
2 stops31h 49mIberia
Tue 9/914:17SFO - LHR
1 stop16h 08mIberia
Deal found 11/6£436
Sun 7/918:40LHR - SFO
1 stop29h 30mSWISS
Sun 14/919:30SFO - LHR
1 stop14h 20mSWISS
Deal found 12/6£436

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 13 June 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

Mon 1/9

11:45-11:45

1 stop32h 00m

San Francisco

Mon 8/9

20:55-14:15

1 stop33h 20m

£393

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 8/9

09:30-21:18

2 stops19h 48m

San Francisco

Thu 18/9

16:37-14:35

1 stop13h 58m

£394

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 3/11

17:10-19:30

Nonstop10h 20m

San Francisco

Tue 18/11

16:05-10:15

Nonstop10h 10m

£394

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 9/9

10:45-13:50

Nonstop11h 05m

San Francisco

Tue 16/9

19:20-13:45

Nonstop10h 25m

£395

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 22/11

06:00-14:45

1 stop16h 45m

San Francisco

Fri 28/11

19:10-18:55

1 stop15h 45m

£397

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 13/9

08:45-16:10

1 stop15h 25m

San Francisco

Sat 20/9

16:05-10:25

Nonstop10h 20m

£406

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 2/9

09:30-16:00

1 stop14h 30m

San Francisco

Tue 9/9

13:55-11:45

1 stop13h 50m

£409

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 24/8

18:35-11:45

1 stop25h 10m

San Francisco

Sat 13/9

15:00-13:10

1 stop14h 10m

£411

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 10/9

21:05-16:30

2 stops27h 25m

San Francisco

Wed 8/10

19:40-17:40

1 stop14h 00m

£414

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 13/9

14:05-20:36

1 stop14h 31m

San Francisco

Sat 20/9

16:35-06:30

2 stops53h 55m

£422

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 27 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 9 June 2025.

Booking 82 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 £538). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £803). 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 13 June 2025.

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.

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 Wednesday evenings when fares are most often at their lowest. Sunday at midday 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 13 June 2025.

The most flights from LHR to FR8 are scheduled on a Monday (42 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 on average).

Rainfall in Fremont by month

Plan your trip to Fremont by taking into account the average rainfall totals by month.

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.

Temperature in Fremont by month

Plan your trip to Fremont by taking into account the average temperature totals by month.

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).

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 13 June 2025.
To help decide which airline to fly from London to Fremont, see what other customers have to say about Delta, Air New Zealand and KLM. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air New Zealand
8.0
Very Good
483 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 £424. British Airways flights start at £425 while deals on Aer Lingus start at £428 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 (90%), Austrian Airlines (90%), United Airlines (90%).

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

    On average you can expect to pay £1,833 for a flight from London Heathrow Airport to Fremont. The cheapest flight overall is £335 while the most popular route, (London Heathrow - San Francisco) is currently priced at £372.

  • 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 £538). Flying from London Heathrow Airport to Fremont in July is currently the most expensive (average of £803). 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£235Average£473FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£275Average£478FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air FranceCheapest£312Average£425FlexibilityNo cancel feeOn-time77%
Search Air France flights
TAP AIR PORTUGALCheapest£342Average£471FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
SWISSCheapest£347Average£378FlexibilityNo cancel feeOn-time79%
Search SWISS flights
United AirlinesCheapest£352Average£588FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£352Average£572FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Virgin AtlanticCheapest£358Average£528FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£360Average£575FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Brussels AirlinesCheapest£362Average£488FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines 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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