HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$385+ Cheap flights from Fremont, CA to Heathrow (LHR)

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Fremont to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Fremont to London Heathrow are usually found in October or February, booked 42 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Fremont to Heathrow

Keep the following information in mind while searching for Fremont to Heathrow flight deals. Data was last updated June 12, 2025.

Round-trip from

$685
(Air Canada)

One-way from

$385
(Justfly.com)

Popular in

June

Cheapest in

October

Average price

$1,083
From Fremont to London Heathrow
Search Deals
One-way flight from Fremont to London Heathrow
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Fremont to Heathrow

Cheapest flights from Fremont to Heathrow
Explore the most affordable flight options available from Fremont to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/211:25 pmSFO - LHR
2 stops23h 10mAir Canada
Tue 8/123:50 pmLHR - SFO
2 stops34h 48mAir Canada
Deal found 6/10$685
This KLM deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/241:45 pmSFO - LHR
1 stop13h 00mKLM
Tue 7/2912:25 pmLHR - SFO
1 stop17h 00mKLM
Deal found 6/12$686
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:40 amSFO - LHR
1 stop14h 30mUnited Airlines
Sat 11/292:30 pmLHR - SFO
1 stop30h 00mUnited Airlines
Deal found 6/11$687
This Austrian Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/231:55 pmSFO - LHR
1 stop13h 55mAustrian Airlines
Fri 9/196:00 amLHR - SFO
2 stops20h 28mAustrian Airlines
Deal found 6/12$688
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:20 pmSFO - LHR
Nonstop10h 25mAmerican Airlines
Sat 10/187:40 amLHR - SFO
1 stop16h 15mAmerican Airlines
Deal found 6/11$689
This Lufthansa deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:40 pmSFO - LHR
1 stop14h 00mLufthansa
Thu 10/29:30 amLHR - SFO
2 stops23h 25mLufthansa
Deal found 6/11$690
This Orbitz deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:18 amSFO - LHR
1 stop13h 02mBritish Airways
Sun 7/209:45 pmLHR - SFO
2 stops29h 22mBritish Airways
Deal found 6/11$691
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/64:05 pmSFO - LHR
Nonstop10h 20mDelta
Tue 8/512:55 pmLHR - SFO
1 stop18h 52mDelta
Deal found 6/11$693
This SWISS deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/67:40 pmSFO - LHR
2 stops39h 40mSWISS
Wed 8/68:05 pmLHR - SFO
2 stops51h 28mSWISS
Deal found 6/11$699
This Scandinavian Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:05 amSFO - LHR
2 stops18h 15mScandinavian Airlines
Wed 8/279:05 pmLHR - SFO
2 stops27h 25mScandinavian Airlines
Deal found 6/12$714
This Booking.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/228:20 amSFO - LHR
2 stops19h 30mMultiple Airlines
Fri 8/156:40 pmLHR - SFO
1 stop29h 30mMultiple Airlines
Deal found 6/11$715
This Brussels Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/202:40 pmSFO - LHR
2 stops18h 25mBrussels Airlines
Wed 12/106:50 amLHR - SFO
2 stops20h 45mBrussels Airlines
Deal found 6/11$731

Cheapflights Fare Finder

Customize your flight search to find flights from Fremont to Heathrow 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 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Fremont to London Heathrow Airport that are best for you.

Fly from

Fremont

Fly to

Heathrow

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 8/2

11:25 pm-6:35 am

2 stops23h 10m

London Heathrow

Tue 8/12

3:50 pm-6:38 pm

2 stops34h 48m

$685

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 7/24

1:45 pm-10:45 am

1 stop13h 00m

London Heathrow

Tue 7/29

12:25 pm-9:25 pm

1 stop17h 00m

$686

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 11/20

8:40 am-7:10 am

1 stop14h 30m

London Heathrow

Sat 11/29

2:30 pm-12:30 pm

1 stop30h 00m

$687

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 8/23

1:55 pm-11:50 am

1 stop13h 55m

London Heathrow

Fri 9/19

6:00 am-6:28 pm

2 stops20h 28m

$688

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 10/2

7:20 pm-1:45 pm

Nonstop10h 25m

London Heathrow

Sat 10/18

7:40 am-3:55 pm

1 stop16h 15m

$689

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 9/25

2:40 pm-12:40 pm

1 stop14h 00m

London Heathrow

Wed 10/8

9:30 am-12:55 am

2 stops23h 25m

$690

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 7/10

10:18 am-7:20 am

1 stop13h 02m

London Heathrow

Sun 7/20

9:45 pm-7:07 pm

2 stops29h 22m

$691

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 7/6

4:05 pm-10:25 am

Nonstop10h 20m

London Heathrow

Tue 8/12

11:20 am-8:25 pm

1 stop17h 05m

$693

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 7/6

7:30 pm-7:55 am

1 stop28h 25m

London Heathrow

Wed 8/6

8:05 pm-3:33 pm

2 stops51h 28m

$699

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 8/13

7:05 am-9:20 am

2 stops18h 15m

London Heathrow

Wed 8/27

9:05 pm-4:30 pm

2 stops27h 25m

$714

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Fremont to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Fremont with our price prediction graph.
Estimated round-trip 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 Fremont to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Fremont to Heathrow. Price data was last updated on June 9, 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Fremont to London Heathrow Airport. 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 Fremont to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Fremont to London Heathrow Airport (average of $661). Flying from Fremont to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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 FR8 to LHR?

Find hourly flight availability from Fremont to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Fremont to London Heathrow Airport, 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 Fremont to London Heathrow Airport?

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

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

Weekly flight availability from Fremont to London Heathrow Airport

Explore weekly flight availability from Fremont to Heathrow. 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 June 12, 2025.

The most flights from FR8 to LHR 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).

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Austrian Airlines from Fremont to London to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Fremont to Heathrow. 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 Fremont to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at $385. Virgin Atlantic flights start at $387 while deals on United Airlines start at $389 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Fremont to London Heathrow Airport consider choosing Air New Zealand (81%), Air France (80%) or Delta (80%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for $365. While the most popular route (San Francisco - London Heathrow) can be booked for $481 on average our data indicates $2,609 when flying from Fremont to London Heathrow Airport.

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

    Yes. In addition to deals on Fremont to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Heathrow.

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

    Yes. Cheapflights offers flight deals from Fremont to Heathrow 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 Fremont to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Fremont to London Heathrow Airport (average of $661). Flying from Fremont to London Heathrow Airport in June is currently the most expensive (average of $1,108). 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

Traveling to a place near Fremont?

Book flights to Fremont if you plan to visit one of these locations
Hayes
Hounslow
Thornton Heath
Luton
Canterbury
Harrow
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Croydon
Folkestone
Borehamwood
Broadway
Sutton
Aylesbury
Chelmsford
Brentwood

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 Fremont to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to London City flights
Los Angeles to Gatwick flights
San Francisco to Gatwick flights
San Francisco to London City flights
San Diego to Heathrow flights
Ontario to Heathrow flights
Los Angeles to Luton flights
Los Angeles to Stansted flights
Las Vegas to Heathrow flights
San Francisco to Stansted flights
San Francisco to Luton flights
San Diego to Gatwick flights
San Jose to Heathrow flights
Oakland to Heathrow flights
Sacramento to Heathrow flights
Los Angeles to Southend flights
San Diego to London City flights
Las Vegas to Gatwick flights
Las Vegas to London City flights
Santa Ana to Heathrow flights
San Jose to Gatwick flights
Reno to Heathrow flights
Palm Springs to Heathrow flights
Sacramento to Gatwick flights
San Jose to London City flights
Burbank to Heathrow flights
Oakland to Gatwick flights
Reno to Gatwick flights
Palm Springs to Gatwick flights
Palm Springs to London City flights
Santa Rosa to Heathrow flights
Sacramento to London City flights
Long Beach to Heathrow flights
Fresno to Heathrow flights
Ontario to Gatwick flights
Santa Ana to Gatwick flights
Las Vegas to Luton flights
San Diego to Stansted flights
Las Vegas to Stansted flights
Arcata to Heathrow flights
Reno to London City flights
Medford to Heathrow flights
San Luis Obispo to Heathrow flights
Burbank to London City flights
Oakland to London City flights
Fresno to London City flights
San Jose to Stansted flights
Santa Barbara to Heathrow flights

Top 10 airlines flying from Fremont to Heathrow

Discover the top 10 airlines that operate flights from Fremont to Heathrow. 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 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$332Average$582FlexibilityNo cancel feeOn-time77%
FinnairCheapest$465Average$667FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$487Average$597FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$541Average$703FlexibilityNo cancel feeOn-time79%
IberiaCheapest$572Average$720FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$582Average$807FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$584Average$853FlexibilityNo cancel feeOn-time62%
KLMCheapest$586Average$797FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$588Average$862FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$590Average$790FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.