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Cheap flights from the United Kingdom to San Francisco from £258

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 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to San Francisco
Explore the most affordable flight options available from United Kingdom to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Thu 25/1209:00LHR - SFO
1 stop15h 30mSWISS
Wed 14/119:25SFO - LHR
1 stop14h 25mSWISS
Deal found 3/12£465
Tue 9/1212:35LHR - SFO
1 stop15h 55mIberia
Tue 16/1206:00SFO - LHR
1 stop18h 15mIberia
Deal found 3/12£467
Mon 15/1218:55LCY - SFO
1 stop24h 55mVirgin Atlantic
Wed 21/108:00SFO - LCY
2 stops17h 30mVirgin Atlantic
Deal found 2/12£467
Thu 25/1210:05LHR - SFO
1 stop17h 39mFinnair
Tue 13/110:11SFO - LHR
1 stop14h 24mFinnair
Deal found 3/12£468
Wed 24/1218:55LCY - SFO
1 stop24h 55mVirgin Atlantic
Thu 15/113:55SFO - LCY
1 stop34h 15mVirgin Atlantic
Deal found 2/12£468
Wed 24/1209:00LHR - SFO
1 stop15h 30mSWISS
Wed 14/119:25SFO - LHR
1 stop14h 25mSWISS
Deal found 3/12£468
Tue 23/1217:10LHR - SFO
1 stop31h 20mSWISS
Fri 9/119:25SFO - LHR
1 stop14h 25mSWISS
Deal found 4/12£469
Thu 25/1216:00LGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Sat 17/116:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Deal found 3/12£469
Wed 24/1220:05LCY - SFO
1 stop23h 45mVirgin Atlantic
Sat 17/113:55SFO - LCY
1 stop15h 20mVirgin Atlantic
Deal found 2/12£471
Tue 23/1218:40LHR - SFO
1 stop29h 50mSWISS
Wed 14/119:25SFO - LHR
1 stop14h 25mSWISS
Deal found 3/12£471
Thu 25/1209:00LHR - SFO
1 stop15h 30mSWISS
Mon 12/119:25SFO - LHR
1 stop14h 25mSWISS
Deal found 3/12£472
Wed 24/1210:00LCY - SFO
1 stop33h 50mDelta
Sun 28/1213:55SFO - LCY
1 stop18h 40mDelta
Deal found 2/12£474

Find flight deals from United Kingdom to San Francisco

Keep the following information in mind while searching for United Kingdom to San Francisco flight deals. Data was last updated 5 December 2025.

Round-trip from

£435

One-way from

£258

Popular in

July

Cheapest in

September

Average price

£599

Good round-trip deal

£560 or less

Good one-way deal

£378 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 4/5-17/5
  • 2 total stops
  • 45h 10m total
  • United Kingdom to San Francisco
Search Deals
25/2
  • 25/2
  • 2 total stops
  • 40h 48m total
  • United Kingdom to San Francisco
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£59 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
Price to beat on a round-trip flight from United Kingdom to San Francisco.
Search Deals
Price to beat on a one-way flight from United Kingdom to San Francisco.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to San Francisco 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 5 December 2025.
Use the filters below to find and compare flights from the United Kingdom to San Francisco that are best for you.

Fly from

United Kingdom

Fly to

San Francisco

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 12/1

16:40-14:50

1 stop30h 10m

San Francisco

Mon 26/1

16:20-13:30

1 stop13h 10m

£476

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 19/1

09:15-16:30

1 stop15h 15m

San Francisco

Mon 26/1

19:25-17:05

1 stop13h 40m

£480

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Mon 12/1

11:40-12:38

1 stop32h 58m

San Francisco

Mon 26/1

13:40-09:45

1 stop36h 05m

£488

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 12/1

13:45-17:00

Nonstop11h 15m

San Francisco

Mon 26/1

17:25-12:00

Nonstop10h 35m

£489

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 21/1

10:05-13:20

Nonstop11h 15m

San Francisco

Tue 10/2

16:20-13:30

1 stop13h 10m

£489

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Fri 3/4

19:40-14:40

2 stops51h 00m

San Francisco

Fri 17/4

16:45-10:15

2 stops33h 30m

£490

LondonSan Francisco

LTN - SFO

LTNSFO

London Luton

Mon 26/1

06:00-15:35

1 stop17h 35m

San Francisco

Fri 30/1

17:20-16:15

1 stop14h 55m

£492

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 19/2

09:00-16:30

1 stop15h 30m

San Francisco

Wed 4/3

11:09-09:40

1 stop14h 31m

£492

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 8/1

17:00-20:48

1 stop35h 48m

San Francisco

Sat 31/1

10:35-22:10

1 stop27h 35m

£497

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 18/2

10:15-22:59

1 stop20h 44m

San Francisco

Sat 7/3

17:30-12:00

Nonstop10h 30m

£500

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from United Kingdom 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 the United Kingdom to San Francisco

What is the cheapest month to book a flight from United Kingdom to San Francisco?

Currently, February is the cheapest month in which you can book a flight from United Kingdom to San Francisco (average of £348). Flying from United Kingdom to San Francisco in July is currently the most expensive (average of £459). 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 GB to SFO?

Find hourly flight availability from United Kingdom to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 December 2025.

When flying from United Kingdom to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 9% versus a flight at midday.

What is the cheapest day to fly from United Kingdom to San Francisco?

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

Travellers seeking maximum savings on their United Kingdom to San Francisco flight should consider departing on Friday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from United Kingdom to San Francisco

Explore weekly flight availability from United Kingdom to San Francisco. 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 5 December 2025.

The most flights from GB0 to SFO 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).

How often are flights from the United Kingdom to San Francisco delayed?

About 13% of weekly flights between United Kingdom and San Francisco have experienced delays in the past year, with the average delay time being 140 minutes.

What is the most punctual flight time for the United Kingdom to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to San Francisco flights?

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 12% of flights being delayed.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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. Reviews last updated 5 December 2025.
Read reviews from past customers who have flown with Virgin Atlantic, United Airlines, andAer Lingus from the United Kingdom to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.2

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

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.2

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
9,065 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.2

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!
Aer Lingus
7.2
Good
1,384 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.2

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
7,613 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.2

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
7,562 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Food

6.9

Comfort

7.3

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.2

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 United Kingdom to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Francisco from United Kingdom?

    If you book a flight to San Francisco from United Kingdom, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco.

  • How long is the flight from United Kingdom to San Francisco?

    A quick flight from United Kingdom to San Francisco can take about 15h 15m. United Airlines provides one of the quickest options available for as low as £480. Airlines will cover a distance of 5363 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from United Kingdom to San Francisco one-way?

    To fly one-way, consider booking your trip with Vueling, which is currently one of the cheapest options available, starting at £142. Scandinavian Airlines flights start at £195 while deals on JetBlue start at £245 one-way.

  • What are the most popular routes from United Kingdom to San Francisco?

    Most travelers choose London Heathrow - San Francisco, London Gatwick - San Francisco or London City - San Francisco when deciding on the best route from United Kingdom to San Francisco.

  • What are the most reliable airlines from United Kingdom to San Francisco?

    The top 3 most reliable airlines when flying from United Kingdom to San Francisco are Air New Zealand (85%), KLM (84%) and Air France (83%).

  • What are the cheapest flights from United Kingdom to San Francisco?

    On average you can expect to pay £1,949 for a flight from United Kingdom to San Francisco. The cheapest flight overall is £333 while the most popular route, (London Heathrow - San Francisco) is currently priced at £360.

  • Can I find deals for flights from United Kingdom to San Francisco that include hotel bookings?

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

  • How can I find direct flights from United Kingdom to San Francisco?

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

  • Can I find deals for business class flights from United Kingdom to San Francisco?

    Yes. Cheapflights offers flight deals from United Kingdom to San Francisco 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 United Kingdom to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to San Francisco (average of £348). Flying from United Kingdom to San Francisco in July is currently the most expensive (average of £459). 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
South San Francisco
Bodega Bay
Pacific Grove

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Alternative routes for United Kingdom to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to San Francisco

Discover the top 10 airlines that operate flights from United Kingdom to San Francisco. 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 5 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£171Average£632FlexibilityNo cancel feeOn-time77%
Search Iberia flights
DeltaCheapest£239Average£599FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£337Average£576FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Aer LingusCheapest£355Average£691FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£356Average£509FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
United AirlinesCheapest£356Average£580FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£356Average£514FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
SWISSCheapest£360Average£550FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£376Average£510FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£378Average£584FlexibilityNo 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 United Kingdom to San Francisco?

Cheapflights makes it easy to find United Kingdom to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to San Francisco?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to San Francisco.

Can Cheapflights find flights from United Kingdom to San Francisco with no change fees?

Yes, we can. To see specific flights from United Kingdom to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from United Kingdom to San Francisco become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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