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Cheap flights from San Francisco Bay Area to London from £174

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LON
10 Jan — 17 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco Bay Area to London

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco Bay Area to London
Explore the most affordable flight options available from San Francisco Bay Area to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 December 2025.

Mon 29/1222:30SJC - LHR
1 stop23h 25mUnited Airlines
Tue 13/113:35LHR - SJC
2 stops32h 04mUnited Airlines
Deal found 8/12£443
Mon 29/1216:15SFO - LHR
1 stop32h 15mMultiple Airlines
Tue 13/113:45LHR - SFO
1 stop34h 45mMultiple Airlines
Deal found 10/12£447
Mon 29/1216:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Tue 13/116:35LGW - SFO
1 stop29h 55mTAP AIR PORTUGAL
Deal found 11/12£448
Sun 28/1216:10SFO - LHR
1 stop13h 20mMultiple Airlines
Thu 15/109:00LHR - SFO
1 stop15h 30mMultiple Airlines
Deal found 9/12£450
Tue 30/1216:10SFO - LHR
1 stop13h 20mLufthansa
Wed 14/108:50LHR - SFO
2 stops18h 45mLufthansa
Deal found 11/12£452
Wed 10/1212:50SFO - LHR
Nonstop10h 35mUnited Airlines
Thu 25/1206:35LHR - SFO
1 stop16h 15mUnited Airlines
Deal found 10/12£453
Wed 31/1219:25SFO - LCY
1 stop13h 40mSWISS
Thu 15/109:15LCY - SFO
1 stop15h 15mSWISS
Deal found 10/12£454
Wed 31/1217:25SFO - LHR
Nonstop10h 35mUnited Airlines
Fri 16/111:10LHR - SFO
1 stop16h 25mUnited Airlines
Deal found 9/12£454
Wed 10/1216:30SFO - LHR
Nonstop10h 10mDelta
Thu 15/106:30LHR - SFO
1 stop13h 20mDelta
Deal found 9/12£455
Mon 29/1216:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Thu 15/116:00LGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Deal found 9/12£455
Tue 30/1208:25SFO - LHR
1 stop14h 45mUnited Airlines
Thu 15/111:10LHR - SFO
1 stop16h 25mUnited Airlines
Deal found 9/12£456
Wed 10/1216:15SFO - LHR
1 stop13h 15mLufthansa
Thu 22/111:10LHR - SFO
1 stop16h 25mLufthansa
Deal found 9/12£458

Find flight deals from San Francisco Bay Area to London

Keep the following information in mind while searching for San Francisco Bay Area to London flight deals. Data was last updated 11 December 2025.

Round-trip from

£419

One-way from

£174

Popular in

June

Cheapest in

September

Average price

£662
Lufthansa
  • Lufthansa
  • 20/1-27/1
  • 3 total stops
  • 39h 21m total
  • San Francisco Bay Area to London
Search Deals
12/4
  • 12/4
  • 1 total stop
  • 14h 48m total
  • San Francisco Bay Area to London
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£85 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£16 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 San Francisco Bay Area to London 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 11 December 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to London that are best for you.

Fly from

San Francisco Bay Area

Fly to

London

Route

Depart

Return

Price

San JoseLondon

SJC - LHR

SJCLHR

San Jose

Thu 22/1

13:50-17:40

2 stops19h 50m

London Heathrow

Thu 29/1

06:40-22:12

3 stops23h 32m

£434

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 14/1

13:00-17:40

2 stops20h 40m

London Heathrow

Tue 20/1

19:30-23:04

2 stops35h 34m

£451

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 4/2

16:03-21:40

2 stops21h 37m

London Heathrow

Mon 9/2

10:20-20:29

2 stops18h 09m

£451

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 9/3

07:25-09:20

2 stops18h 55m

London Heathrow

Tue 24/3

06:40-15:35

1 stop15h 55m

£451

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 2/2

16:40-20:00

2 stops19h 20m

London Stansted

Fri 6/2

11:55-14:35

2 stops34h 40m

£452

San FranciscoLondon

SFO - LTN

SFOLTN

San Francisco

Sat 14/3

17:40-22:55

2 stops22h 15m

London Luton

Sun 22/3

14:40-15:35

2 stops31h 55m

£458

San FranciscoLondon

SFO - LCY

SFOLCY

San Francisco

Wed 11/2

19:25-17:05

1 stop13h 40m

London City

Fri 20/2

09:20-16:30

1 stop15h 10m

£459

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 21/1

12:50-07:25

Nonstop10h 35m

London Heathrow

Thu 29/1

11:10-18:55

1 stop15h 45m

£460

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 17/3

13:50-07:25

Nonstop10h 35m

London Heathrow

Tue 24/3

11:10-20:35

1 stop16h 25m

£460

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 23/1

13:20-11:50

1 stop14h 30m

London Heathrow

Fri 30/1

11:10-19:35

1 stop16h 25m

£460

Flights are sorted by cheapest return flights first.

Deals found on 9/12

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

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

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

Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London (average of £373). Flying from San Francisco Bay Area to London in June is currently the most expensive (average of £610). 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 XIH to LON?

Find hourly flight availability from San Francisco Bay Area to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 December 2025.

It’s typically best to fly out from San Francisco Bay Area to London in the evening. Doing so could potentially save you 11% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from San Francisco Bay Area to London?

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

Travellers seeking maximum savings on their San Francisco Bay Area to London flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco Bay Area to London

Explore weekly flight availability from San Francisco Bay Area to London. 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 11 December 2025.

The most flights from zzXIH to LON 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 London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 11 December 2025.
See what other customers who have flown with Virgin Atlantic, United Airlines, andIberia from San Francisco Bay Area to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.2

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
675 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.2

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,095 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.2

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Iberia
7.0
Good
3,045 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.2

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,626 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.2

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,573 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Overall

7.5

Food

6.9

Boarding

7.7

Crew

8.2

Entertainment

7.5

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area to London. 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 San Francisco Bay Area to London?

    Departing from San Francisco Bay Area to London will take you 10h 35m. San Francisco Bay Area and London are separated by a distance of 5350 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from San Francisco Bay Area to London one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as £246. Users have also found prices from £266 and £268 on Air France and KLM, respectively.

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

    The most popular route from San Francisco Bay Area to London is San Francisco - London Heathrow. You may also consider San Francisco - London Gatwick or San Francisco - London City.

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

    No one likes to see their flight delayed. When booking a flight from San Francisco Bay Area to London consider choosing American Airlines (90%), Aer Lingus (90%) or Alaska Airlines (90%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £1,280 for a flight from San Francisco Bay Area to London. The cheapest flight overall is £183 while the most popular route, (San Francisco - London Heathrow) is currently priced at £308.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London (average of £373). Flying from San Francisco Bay Area to London in June is currently the most expensive (average of £610). 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 San Francisco Bay Area to London

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Top 7 airlines flying from San Francisco Bay Area to London

Discover the top 7 airlines that operate flights from San Francisco Bay Area to London. 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 11 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£358Average£451FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£367Average£507FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£371Average£565FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£389Average£519FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£416Average£664FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£420Average£606FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£428Average£519FlexibilityNo cancel feeOn-time77%
Search Iberia 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 San Francisco Bay Area to London?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from San Francisco Bay Area today with Cheapflights!

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

Cheapflights simply makes it quick and affordable to book flights from San Francisco Bay Area to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to London from San Francisco Bay Area? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from San Francisco Bay Area today and book when prices fit your budget.

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