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Cheap flights from London Heathrow Airport to San Francisco Bay Area from £336

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
28 Nov — 5 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to San Francisco Bay Area

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to San Francisco Bay Area
Explore the most affordable flight options available from Heathrow to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 October 2025.

Sat 8/1106:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Sat 15/1116:35SFO - LHR
1 stop22h 05mTAP AIR PORTUGAL
Deal found 27/10£383
Thu 20/1119:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Wed 3/1216:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 28/10£384
Mon 8/1206:00LHR - SFO
1 stop16h 35mTAP AIR PORTUGAL
Fri 16/119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 28/10£394
Wed 19/1106:00LHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Fri 28/1119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 28/10£398
Fri 7/1119:55LHR - SFO
1 stop26h 50mTAP AIR PORTUGAL
Sat 6/1216:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 27/10£399
Wed 10/1206:00LHR - SFO
1 stop16h 30mTAP AIR PORTUGAL
Wed 31/1216:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 27/10£403
Fri 7/1119:55LHR - SFO
1 stop26h 50mTAP AIR PORTUGAL
Fri 14/1119:10SFO - LHR
1 stop18h 25mTAP AIR PORTUGAL
Deal found 28/10£406
Sat 8/1106:00LHR - SFO
1 stop16h 45mTAP AIR PORTUGAL
Wed 10/1216:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 27/10£409
Fri 21/1119:55LHR - SFO
1 stop26h 50mTAP AIR PORTUGAL
Mon 1/1216:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 28/10£412
Mon 24/1106:40LHR - SFO
1 stop15h 55mScandinavian Airlines
Mon 8/1216:40SFO - LHR
1 stop17h 50mScandinavian Airlines
Deal found 27/10£413
Thu 13/1119:30LHR - SFO
1 stop27h 05mScandinavian Airlines
Sun 30/1116:40SFO - LHR
1 stop17h 50mScandinavian Airlines
Deal found 27/10£415
Mon 8/1208:25LHR - SJC
2 stops20h 11mFinnair
Mon 15/1206:00SJC - LHR
2 stops25h 15mFinnair
Deal found 27/10£463

Cheap flight deals from Heathrow to San Francisco Bay Area

Keep the following information in mind while searching for Heathrow to San Francisco Bay Area flight deals. Data was last updated 29 October 2025.

Round-trip from

£383

One-way from

£336

Popular in

July

Cheapest in

September

Average price

£491
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 8/11-15/11
  • 2 total stops
  • 38h 50m total
  • London to San Francisco Bay Area
Search Deals
Delta
  • Delta
  • 11/2
  • 2 total stops
  • 25h 33m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£63 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 October 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to San Francisco Bay Area 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 29 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Francisco Bay Area that are best for you.

Fly from

Heathrow

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 5/3

06:40-14:35

1 stop15h 55m

San Francisco

Mon 9/3

17:40-17:40

1 stop17h 00m

£441

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 20/11

15:35-14:35

2 stops31h 00m

San Francisco

Fri 28/11

16:40-18:30

2 stops17h 50m

£447

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/3

19:50-14:35

2 stops26h 45m

San Francisco

Tue 10/3

17:40-16:25

2 stops15h 45m

£453

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 20/11

21:05-14:35

2 stops25h 30m

San Francisco

Thu 27/11

16:40-18:50

2 stops18h 10m

£457

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 25/11

09:00-16:30

1 stop15h 30m

San Francisco

Mon 1/12

00:43-07:30

1 stop22h 47m

£464

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 24/11

09:00-16:30

1 stop15h 30m

San Francisco

Tue 9/12

17:25-12:00

Nonstop10h 35m

£465

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/2

09:00-16:30

1 stop15h 30m

San Francisco

Wed 18/2

17:25-12:00

Nonstop10h 35m

£467

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Mon 8/12

07:40-17:51

2 stops42h 11m

San Jose

Mon 15/12

08:45-09:40

1 stop16h 55m

£470

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 17/11

06:30-11:50

1 stop13h 20m

San Francisco

Sun 30/11

16:30-10:40

Nonstop10h 10m

£474

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 10/12

09:00-16:30

1 stop15h 30m

San Francisco

Sun 14/12

00:43-06:40

2 stops21h 57m

£478

Flights are sorted by cheapest return flights first.

Deals found on 26/10

Showing 1-10 of 60 results
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Best time to book a flight from Heathrow to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area 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 San Francisco Bay Area

What is the cheapest month to book a flight from London Heathrow Airport to San Francisco Bay Area?

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco Bay Area (average of £340). Flying from London Heathrow Airport to San Francisco Bay Area in July is currently the most expensive (average of £461). 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 XIH?

Find hourly flight availability from Heathrow to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 October 2025.

It’s typically best to fly out from London Heathrow Airport to San Francisco Bay Area in the evening. Doing so could potentially save you 26% 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 San Francisco Bay Area?

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

Travellers seeking maximum savings on their London Heathrow Airport to San Francisco Bay Area 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.

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 San Francisco Bay Area. Reviews last updated 29 October 2025.
Read reviews from past customers who have flown with Austrian Airlines, Virgin Atlantic, andUnited Airlines from London Heathrow Airport to San Francisco Bay Area. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
861 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

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.
Austrian Airlines
7.6
Good
861 reviews
Austrian Airlines
7.6
Good
861 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

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.
Virgin Atlantic
7.5
Good
670 reviews
Austrian Airlines
7.6
Good
861 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

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.
United Airlines
7.4
Good
9,001 reviews
Austrian Airlines
7.6
Good
861 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

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.
Lufthansa
6.8
Okay
7,535 reviews
Austrian Airlines
7.6
Good
861 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

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.
British Airways
6.7
Okay
7,483 reviews
Austrian Airlines
7.6
Good
861 reviews
Check prices

Boarding

7.6

Entertainment

6.8

Crew

8.1

Comfort

7.3

Overall

7.6

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 San Francisco Bay Area. 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 San Francisco Bay Area?

    There are many flights that can get you from London Heathrow Airport to San Francisco Bay Area in 15h 30m. Fly via Scandinavian Airlines, United Airlines, or Delta to get the fastest option. The distance between London Heathrow Airport and San Francisco Bay Area is about 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 San Francisco Bay Area one-way?

    One-way options have recently been found by users for as low as £336 on Delta. Other airlines that offer cheap prices include United Airlines from £345 and British Airways from £346 one-way.

  • What are the most popular routes from London Heathrow Airport to San Francisco Bay Area?

    When deciding which route to take from London Heathrow Airport to San Francisco Bay Area consider London Heathrow - San Francisco, London Heathrow - San Jose or London Heathrow - Oakland as they are the most popular.

  • What are the most reliable airlines from London Heathrow Airport to San Francisco Bay Area?

    Consider Air New Zealand (87%), KLM (85%) or Air France (85%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to San Francisco Bay Area.

  • What are the cheapest flights from London Heathrow Airport to San Francisco Bay Area?

    While on average a flight from London Heathrow Airport to San Francisco Bay Area is generally £2,102, our data shows the cheapest flight currently is £338. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay £354 for that flight.

  • Can I find deals for flights from Heathrow to San Francisco Bay Area that include hotel bookings?

    Yes. In addition to deals on Heathrow to San Francisco Bay Area flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to San Francisco Bay Area?

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

  • Can I find deals for business class flights from Heathrow to San Francisco Bay Area?

    Yes. Cheapflights offers flight deals from Heathrow to San Francisco Bay Area 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 San Francisco Bay Area?

    Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco Bay Area (average of £340). Flying from London Heathrow Airport to San Francisco Bay Area in July is currently the most expensive (average of £461). 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 San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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Southend to San Francisco flights

Top 10 airlines flying from Heathrow to San Francisco Bay Area

Discover the top 10 airlines that operate flights from Heathrow to San Francisco Bay Area. 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 29 October 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£240Average£493FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£338Average£498FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£341Average£557FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£353Average£568FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£355Average£498FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£358Average£531FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£359Average£481FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
SWISSCheapest£361Average£410FlexibilityNo cancel feeOn-time79%
Search SWISS flights
KLMCheapest£375Average£461FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£375Average£539FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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 San Francisco Bay Area?

When you search for this flight from Heathrow to San Francisco Bay Area, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Francisco Bay Area?

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 San Francisco Bay Area from Heathrow.

Can Cheapflights find flights from Heathrow to San Francisco Bay Area with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to San Francisco Bay Area, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to San Francisco Bay Area become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to San Francisco Bay Area on Cheapflights with our Price Alert feature and get notified when better prices are available.

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