Your next trip, last seen at €399
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €399, departing 8 Nov 2026 (Last checked: 12 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 54Check live prices for this route
- Airlines seen
- British Airways, United Airlines, Virgin Atlantic, Aer Lingus, Alaska Airlines, American Airlines +6 more
- Reported fastest flight
- 14h 51m
- Non-stop
- Yes
About this route
Explore the fares we observed from London to San Francisco. Prices move often, so pick your dates to see the latest options.
- Route distance
- 8,616 km
- Reported fastest flight
- 14h 51m
- Airlines seen
- British Airways, United Airlines, Virgin Atlantic, Aer Lingus, Alaska Airlines, American Airlines +6 more
- Alternative airports
- LCY, LGW, LTN, SEN, STN
Route-level information; individual journeys vary.
Published schedules report non-stop service with British Airways, United Airlines, Virgin Atlantic. Check current timetables.
A clearer picture of your fare
Airport to city: straight-line distance
- London City Airport (LCY) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 13 km.
- London Heathrow (LHR) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 23 km.
- London Gatwick (LGW) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 40 km.
- London Luton (LTN) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 44 km.
- London Stansted (STN) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 49 km.
- London Southend Airport (SEN) → London, city gazetteer reference point (51.5074, -0.1278): ≈ 57 km.
- San Francisco International Airport (SFO) → San Francisco, city gazetteer reference point (37.7749, -122.4194): ≈ 18 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from London to San Francisco: November 2026, from €399 (checked 12 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €536 | 17 |
| November 2026 | €399 | 18 |
| December 2026 | €423 | 19 |
Lowest fare by day of the week
Cheapest day of the week from London to San Francisco: Sunday, from €399 (checked 12 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €419 | 8 |
| Tuesday | €408 | 9 |
| Wednesday | €408 | 8 |
| Thursday | €408 | 8 |
| Friday | €408 | 7 |
| Saturday | €408 | 7 |
| Sunday | €399 | 7 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from London to San Francisco by days until departure (8 to 30 days): €399 (checked 12 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €571 | 8 |
| 8 to 30 days | €399 | 20 |
| 31 to 60 days | €432 | 9 |
| 61 days or more | €423 | 17 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from London to San Francisco?
The lowest fare we have observed is €399, found on 12 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from London to San Francisco?
Cheapest month from London to San Francisco: November 2026, from €399 (checked 12 Oct 2026).
Are there direct flights from London to San Francisco?
Yes. We have seen non-stop flights on this route, flown by British Airways, United Airlines, Virgin Atlantic.
Which airlines fly from London to San Francisco?
These are the carriers we have seen on the route: British Airways, United Airlines, Virgin Atlantic, Aer Lingus, Alaska Airlines, American Airlines +6 more.
How many of the observed London to San Francisco fares were non-stop?
43 of the 57 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from London to San Francisco?
Cheapest day of the week from London to San Francisco: Sunday, from €399 (checked 12 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 12 Oct 2026