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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 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
12 Jan — 19 Jan1
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 December 2025.

Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Mon 12/116:35SFO - LHR
1 stop21h 00mTAP AIR PORTUGAL
Deal found 11/12£476
Thu 25/1218:30LHR - SFO
1 stop29h 35mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop18h 20mTAP AIR PORTUGAL
Deal found 11/12£484
Mon 15/1206:00LHR - SFO
1 stop16h 35mTAP AIR PORTUGAL
Wed 21/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 13/12£488
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Fri 9/119:10SFO - LHR
1 stop19h 30mTAP AIR PORTUGAL
Deal found 12/12£496
Thu 25/1219:55LHR - SFO
1 stop28h 10mTAP AIR PORTUGAL
Fri 9/119:10SFO - LHR
1 stop15h 45mTAP AIR PORTUGAL
Deal found 12/12£496
Thu 25/1218:30LHR - SFO
1 stop29h 35mTAP AIR PORTUGAL
Mon 12/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 12/12£497
Fri 26/1206:00LHR - SFO
1 stop18h 05mTAP AIR PORTUGAL
Sat 10/116:35SFO - LHR
1 stop16h 55mTAP AIR PORTUGAL
Deal found 13/12£502
Wed 24/1217:00LHR - SFO
1 stop29h 35mScandinavian Airlines
Mon 12/116:40SFO - LHR
2 stops18h 10mScandinavian Airlines
Deal found 13/12£504
Thu 25/1210:05LHR - SJC
1 stop19h 08mBritish Airways
Thu 8/106:00SJC - LHR
2 stops23h 05mBritish Airways
Deal found 11/12£621
Fri 26/1208:20LHR - SJC
1 stop20h 53mBritish Airways
Sun 18/114:32SJC - LHR
1 stop32h 18mBritish Airways
Deal found 12/12£674
Sat 27/1215:05LHR - SJC
1 stop14h 47mDelta
Wed 31/1206:35SJC - LHR
1 stop15h 50mDelta
Deal found 11/12£740
Tue 16/1206:30LHR - SJC
2 stops17h 24mDelta
Fri 2/106:20SJC - LHR
1 stop16h 45mDelta
Deal found 13/12£771

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 December 2025.

Round-trip from

£469

One-way from

£328

Popular in

July

Cheapest in

September

Average price

£617
Virgin Atlantic
  • Virgin Atlantic
  • 10/2-17/2
  • 2 total stops
  • 41h 13m total
  • London to San Francisco Bay Area
Search Deals
United Airlines
  • United Airlines
  • 15/3
  • 2 total stops
  • 57h 30m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£56 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 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 13 December 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

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Tue 10/2

10:45-23:53

1 stop21h 08m

Oakland

Tue 17/2

05:55-10:00

1 stop20h 05m

£469

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Tue 27/1

06:30-20:56

2 stops22h 26m

San Jose

Tue 3/2

08:40-09:10

2 stops16h 30m

£475

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 12/1

16:40-14:50

1 stop30h 10m

San Francisco

Mon 26/1

12:50-07:25

Nonstop10h 35m

£476

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 13/4

08:45-16:10

1 stop15h 25m

San Francisco

Tue 21/4

12:55-07:25

Nonstop10h 30m

£478

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Wed 14/1

08:20-21:29

1 stop21h 09m

San Jose

Tue 20/1

11:51-11:40

1 stop15h 49m

£479

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Tue 13/1

16:15-21:29

2 stops37h 14m

San Jose

Sat 17/1

11:51-06:50

1 stop34h 59m

£481

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Wed 4/2

11:30-20:56

2 stops17h 26m

San Jose

Sun 15/2

15:55-20:35

2 stops20h 40m

£484

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Wed 14/1

07:40-20:56

2 stops21h 16m

San Jose

Tue 20/1

08:40-05:55

2 stops37h 15m

£490

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Wed 25/2

06:20-16:12

2 stops17h 52m

Oakland

Mon 30/3

05:55-13:10

2 stops23h 15m

£491

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 27/1

07:00-16:30

2 stops17h 30m

San Francisco

Tue 3/2

11:45-16:20

2 stops20h 35m

£491

Flights are sorted by cheapest return flights first.

Deals found on 12/12

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, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco Bay Area (average of £354). Flying from London Heathrow Airport to San Francisco Bay Area in July is currently the most expensive (average of £457). 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 December 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.

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 December 2025.

The most flights from LHR to zzXIH are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).

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 December 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
879 reviews
Check prices

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

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
879 reviews
Austrian Airlines
7.6
Good
879 reviews
Check prices

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

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
675 reviews
Austrian Airlines
7.6
Good
879 reviews
Check prices

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

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
9,094 reviews
Austrian Airlines
7.6
Good
879 reviews
Check prices

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

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
7,626 reviews
Austrian Airlines
7.6
Good
879 reviews
Check prices

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

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
7,571 reviews
Austrian Airlines
7.6
Good
879 reviews
Check prices

Entertainment

6.8

Crew

8.1

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

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 21h 08m. Fly via Virgin Atlantic, United Airlines, or British Airways to get the fastest option. The distance between London Heathrow Airport and San Francisco Bay Area is about 5340 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 £250 on Scandinavian Airlines. Other airlines that offer cheap prices include TAP AIR PORTUGAL from £271 and WestJet from £302 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 (85%), KLM (84%) or Air France (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 £1,933, our data shows the cheapest flight currently is £337. When looking at the most popular route, (London Heathrow - San Francisco), you can expect to pay £362 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Francisco Bay Area (average of £354). Flying from London Heathrow Airport to San Francisco Bay Area in July is currently the most expensive (average of £457). 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 13 December 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£238Average£548FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£336Average£490FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£339Average£553FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£354Average£556FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£355Average£532FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
SWISSCheapest£359Average£410FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£359Average£468FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£377Average£542FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£377Average£600FlexibilityNo cancel feeOn-time70%
Search British Airways flights
KLMCheapest£380Average£461FlexibilityNo cancel feeOn-time75%
Search KLM 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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