Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to San Francisco Bay Area from £328

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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
12 Aug — 19 Aug1
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 13 July 2026.

Fri 16/1010:45
LHR
-
SFO
Nonstop11h 05m
British Airways
Mon 19/1016:35
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 9/7£451
Tue 1/906:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Sat 5/916:45
SFO
-
LHR
1 stop17h 45m
Scandinavian Airlines
Deal found 9/7£453
Sat 14/1109:00
LHR
-
SFO
1 stop15h 30m
SWISS
Tue 1/1219:25
SFO
-
LHR
1 stop15h 50m
SWISS
Deal found 11/7£465
Wed 4/1109:00
LHR
-
SFO
1 stop15h 30m
SWISS
Mon 9/1119:25
SFO
-
LHR
1 stop14h 25m
SWISS
Deal found 12/7£466
Wed 9/908:40
LHR
-
SFO
1 stop15h 35m
SWISS
Wed 21/1019:35
SFO
-
LHR
1 stop14h 15m
SWISS
Deal found 11/7£466
Fri 20/1120:25
LHR
-
SFO
1 stop23h 20m
Virgin Atlantic
Thu 26/1106:15
SFO
-
LHR
1 stop16h 50m
Virgin Atlantic
Deal found 8/7£467
Tue 1/910:50
LHR
-
SFO
1 stop16h 10m
Lufthansa
Sat 31/1013:50
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 10/7£468
Tue 1/906:55
LHR
-
SFO
1 stop15h 25m
Lufthansa
Sat 19/916:45
SFO
-
LHR
Nonstop10h 25m
Lufthansa
Deal found 11/7£469
Fri 21/808:30
LHR
-
SFO
1 stop14h 45m
Lufthansa
Sat 5/913:00
SFO
-
LHR
Nonstop10h 25m
Lufthansa
Deal found 10/7£469
Tue 20/1007:25
LHR
-
SFO
1 stop15h 05m
Lufthansa
Fri 30/1022:40
SFO
-
LHR
1 stop15h 20m
Lufthansa
Deal found 11/7£472
Sat 24/1013:30
LHR
-
SFO
1 stop14h 20m
Lufthansa
Fri 30/1022:40
SFO
-
LHR
1 stop15h 20m
Lufthansa
Deal found 11/7£472
Tue 6/1020:55
LHR
-
SJC
2 stops30h 56m
Virgin Atlantic
Fri 16/1014:59
SJC
-
LHR
1 stop16h 01m
Virgin Atlantic
Deal found 8/7£501

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 13 July 2026.

Round-trip from

£451

One-way from

£328

Popular in

December

Cheapest in

February

Average price

£616
British Airways
  • British Airways
  • 16/10-19/10
  • Nonstop
  • 21h 30m total
  • London to San Francisco Bay Area
Search Deals
United Airlines
  • United Airlines
  • 4/10
  • 1 total stop
  • 17h 23m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£5 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 13 July 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

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 27/8

07:25-14:20

1 stop14h 55m

San Francisco

Tue 8/9

12:38-10:10

1 stop13h 32m

£493

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 21/8

13:00-16:00

Nonstop11h 00m

San Francisco

Sat 5/9

19:50-14:10

Nonstop10h 20m

£518

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Tue 6/10

08:40-19:51

2 stops19h 11m

San Jose

Fri 16/10

11:38-13:05

2 stops17h 27m

£529

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Thu 27/8

09:55-20:13

2 stops18h 18m

San Jose

Thu 10/9

09:52-10:15

1 stop16h 23m

£532

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Sun 30/8

06:30-18:29

2 stops19h 59m

San Jose

Sun 13/9

06:30-13:15

1 stop22h 45m

£543

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Sun 30/8

06:30-23:56

2 stops25h 26m

Oakland

Mon 14/9

12:39-10:00

1 stop13h 21m

£544

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Sun 30/8

06:30-18:29

2 stops19h 59m

San Jose

Sun 13/9

07:21-12:10

1 stop20h 49m

£544

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 23/9

16:10-00:59

2 stops40h 49m

San Francisco

Sat 26/9

10:31-09:40

2 stops39h 09m

£548

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Fri 14/8

09:20-22:58

1 stop21h 38m

San Jose

Sun 16/8

14:45-15:35

1 stop16h 50m

£554

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Sun 30/8

10:55-23:56

1 stop21h 01m

Oakland

Mon 14/9

12:39-10:00

1 stop13h 21m

£558

Flights are sorted by cheapest return flights first.

Deals found on 11/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 £488). Flying from London Heathrow Airport to San Francisco Bay Area in January is currently the most expensive (average of £873). 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 13 July 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 13 July 2026.

The most flights from LHR to zzXIH are scheduled on a Monday (42 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (34 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 22 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 13 July 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
943 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
Austrian Airlines
7.6
Good
943 reviews
Austrian Airlines
7.6
Good
943 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
Virgin Atlantic
7.5
Good
693 reviews
Austrian Airlines
7.6
Good
943 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
United Airlines
7.4
Good
9,981 reviews
Austrian Airlines
7.6
Good
943 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
Lufthansa
6.8
Okay
8,131 reviews
Austrian Airlines
7.6
Good
943 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was great.
British Airways
6.7
Okay
8,106 reviews
Austrian Airlines
7.6
Good
943 reviews
Check prices

Entertainment

6.8

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2026

VIE - IAD

The vegetarian choice wasn’t good. The snack was bad. Otherwise, everything was 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 14h 55m. Fly via United Airlines, Delta, or Virgin Atlantic 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 £271 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Virgin Atlantic from £325 and Iberia from £326 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 (83%), Austrian Airlines (83%) or United Airlines (83%) 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 £1,716, our data shows the cheapest flight currently is £343. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay £389 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 £488). Flying from London Heathrow Airport to San Francisco Bay Area in January is currently the most expensive (average of £873). 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

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 Heathrow to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to San Francisco flights
Heathrow to Las Vegas flights
Gatwick to Los Angeles flights
Stansted to Los Angeles flights
London City to Los Angeles flights
Heathrow to Ontario flights
Luton to Los Angeles flights
Gatwick to San Francisco flights
London City to San Francisco flights
Stansted to San Francisco flights
Gatwick to Las Vegas flights
London City to Las Vegas flights
Stansted to Las Vegas flights
Heathrow to San Diego flights
Heathrow to San Jose flights
Luton to San Francisco flights
Gatwick to Ontario flights
Luton to Las Vegas flights
Heathrow to Santa Ana flights
Gatwick to San Diego flights
Gatwick to Burbank flights
London City to San Diego flights
Stansted to San Diego flights
Gatwick to Oakland flights
Gatwick to San Jose flights
Southend to Los Angeles flights
Heathrow to Burbank flights
Heathrow to Long Beach flights
London City to San Jose flights
Gatwick to Santa Ana flights
Heathrow to Oakland flights
Heathrow to Sacramento flights
Southend to San Francisco flights
Heathrow to Reno flights
Gatwick to Palm Springs flights
Heathrow to Palm Springs flights
London City to Oakland flights
London City to Ontario flights
Gatwick to Sacramento flights
London City to Santa Ana flights
Stansted to San Jose flights
Heathrow to Santa Rosa flights
London City to Sacramento flights
Heathrow to San Luis Obispo flights
Gatwick to Reno flights
Gatwick to Tijuana flights
Heathrow to Fresno flights
Stansted to Sacramento flights
Heathrow to Medford 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 13 July 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£321Average£670FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£351Average£433FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£355Average£579FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£360Average£471FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£368Average£545FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Scandinavian AirlinesCheapest£368Average£484FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest£372Average£530FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£375Average£498FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air CanadaCheapest£378Average£575FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£380Average£550FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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.

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.