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Cheap flights from London Heathrow Airport to San Francisco Bay Area from £374

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.
LHR — SFO
27 Jun — 4 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap 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 28 May 2026.

Fri 25/909:20
LHR
-
SJC
1 stop17h 37m
Delta
Sat 3/1014:42
SJC
-
LHR
1 stop16h 53m
Delta
Deal found 24/5£429
Fri 25/909:20
LHR
-
SJC
1 stop17h 37m
Delta
Sun 4/1012:46
SJC
-
LHR
1 stop16h 29m
Delta
Deal found 24/5£434
Thu 8/1011:25
LHR
-
SJC
1 stop17h 39m
United Airlines
Sat 17/1006:30
SJC
-
LHR
1 stop16h 15m
United Airlines
Deal found 26/5£491
Tue 1/910:50
LHR
-
SFO
1 stop16h 10m
Lufthansa
Wed 30/913:55
SFO
-
LHR
1 stop24h 15m
Lufthansa
Deal found 25/5£509
Sat 3/1006:30
LHR
-
SFO
1 stop16h 50m
Multiple Airlines
Sun 18/1023:00
SFO
-
LHR
1 stop25h 35m
Multiple Airlines
Deal found 26/5£510
Wed 4/1109:00
LHR
-
SFO
1 stop15h 30m
United Airlines
Wed 11/1108:35
SFO
-
LHR
1 stop17h 05m
United Airlines
Deal found 23/5£510
Fri 13/1109:00
LHR
-
SFO
1 stop15h 30m
United Airlines
Sat 21/1109:00
SFO
-
LHR
1 stop18h 50m
United Airlines
Deal found 23/5£511
Sat 21/1109:00
LHR
-
SFO
1 stop15h 30m
United Airlines
Sat 28/1105:00
SFO
-
LHR
1 stop20h 40m
United Airlines
Deal found 24/5£512
Sun 11/1019:30
LHR
-
SFO
1 stop27h 10m
Scandinavian Airlines
Tue 20/1016:45
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Deal found 25/5£513
Tue 22/908:45
LHR
-
SFO
2 stops17h 56m
Air Canada
Tue 29/911:10
SFO
-
LHR
1 stop14h 50m
Air Canada
Deal found 25/5£513
Mon 7/910:35
LHR
-
SFO
Nonstop11h 00m
Multiple Airlines
Sun 27/916:30
SFO
-
LHR
1 stop35h 20m
Multiple Airlines
Deal found 26/5£514
Sun 6/1207:40
LHR
-
SFO
1 stop15h 10m
Lufthansa
Fri 5/216:40
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 23/5£515

Find 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 28 May 2026.

Round-trip from

£429

One-way from

£374

Popular in

December

Cheapest in

February

Average price

£545
Delta
  • Delta
  • 25/9-3/10
  • 2 total stops
  • 34h 30m total
  • London to San Francisco Bay Area
Search Deals
United Airlines
  • United Airlines
  • 8/9
  • 2 total stops
  • 36h 08m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 28 May 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 13/11

13:45-16:55

Nonstop11h 10m

San Francisco

Mon 23/11

12:50-07:25

Nonstop10h 35m

£539

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 3/9

19:50-14:40

2 stops26h 50m

San Francisco

Mon 7/9

16:45-18:50

2 stops18h 05m

£548

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Wed 12/8

16:25-10:48

1 stop26h 23m

San Jose

Mon 24/8

14:30-14:25

1 stop15h 55m

£560

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 4/11

15:25-18:45

Nonstop11h 20m

San Francisco

Mon 9/11

20:40-15:10

Nonstop10h 30m

£566

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Wed 29/7

06:30-15:46

2 stops17h 16m

San Jose

Wed 12/8

09:34-13:05

2 stops19h 31m

£567

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Wed 15/7

08:55-19:32

2 stops18h 37m

San Jose

Wed 22/7

12:40-13:15

1 stop16h 35m

£570

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Thu 1/10

06:30-15:47

2 stops17h 17m

San Jose

Wed 14/10

14:35-15:35

1 stop17h 00m

£571

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Sat 26/9

06:30-15:47

2 stops17h 17m

San Jose

Sat 3/10

16:30-15:00

1 stop14h 30m

£571

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Wed 4/11

14:45-19:00

1 stop36h 15m

Oakland

Sun 8/11

19:42-12:20

1 stop32h 38m

£571

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 22/6

17:45-00:06

1 stop14h 21m

San Francisco

Mon 6/7

23:15-17:30

Nonstop10h 15m

£572

Flights are sorted by cheapest return flights first.

Deals found on 27/5

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco Bay Area (average of £454). Flying from London Heathrow Airport to San Francisco Bay Area in January is currently the most expensive (average of £984). 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 28 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to San Francisco Bay Area as you normally would.

Weekly flight availability from London Heathrow Airport to San Francisco Bay Area

Explore weekly flight availability from Heathrow to San Francisco Bay Area. 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 28 May 2026.

The most flights from LHR to zzXIH are scheduled on a Monday (42 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (37 on average).

How far ahead should I book a flight from London Heathrow Airport to San Francisco Bay Area?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to San Francisco Bay Area, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 28 May 2026.
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
922 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Austrian Airlines
7.6
Good
922 reviews
Austrian Airlines
7.6
Good
922 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Virgin Atlantic
7.5
Good
689 reviews
Austrian Airlines
7.6
Good
922 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
United Airlines
7.4
Good
9,754 reviews
Austrian Airlines
7.6
Good
922 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
Lufthansa
6.8
Okay
8,032 reviews
Austrian Airlines
7.6
Good
922 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.
British Airways
6.7
Okay
8,008 reviews
Austrian Airlines
7.6
Good
922 reviews
Check prices

Comfort

7.3

Overall

7.6

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

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 11h 10m. Fly via Lufthansa, Scandinavian Airlines, or British Airways 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 £272 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Virgin Atlantic from £324 and Iberia from £325 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 Canada (88%), Austrian Airlines (88%) or United Airlines (88%) 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 £1,192, our data shows the cheapest flight currently is £427. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay £486 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, September is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco Bay Area (average of £454). Flying from London Heathrow Airport to San Francisco Bay Area in January is currently the most expensive (average of £984). 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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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 28 May 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£320Average£627FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£335Average£418FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
SWISSCheapest£350Average£428FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£352Average£578FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£354Average£481FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£359Average£468FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapest£367Average£541FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Brussels AirlinesCheapest£371Average£510FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£375Average£500FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Virgin AtlanticCheapest£378Average£538FlexibilityNo 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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