United Airlines London to San Francisco Flights

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Cheapflightsplus.com will find cheap United Airlines flights from London to San Francisco. Compare airline ticket prices and book air tickets starting from $390 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare London — San Francisco (CA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in may: one-way - $390, two-way – $669.

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Cheap Flights from London to San Francisco by United Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $390. The fastest nonstop flight takes 11h 10m. The fastest connecting flight — 14h 5m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $390 Find flight	1:45 pm London Heathrow	4:55 pm San Francisco San Francisco	11h 10m	United Airlines	UA949
from $401 Find flight	10:05 am London Heathrow	1:15 pm San Francisco San Francisco	11h 10m	United Airlines	UA900
from $423 Find flight	7:40 am London Heathrow	2:50 pm San Francisco San Francisco	15h 10m layover 1h 20m - Munich	United Airlines	UA8884 UA195
from $425 Find flight	6:30 am London Heathrow	12:35 pm San Francisco San Francisco	14h 5m layover 1h 0m - Frankfurt	United Airlines	UA9546 UA8829

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 05/06/2025

United Airlines Flight Schedule London to San Francisco

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
10:05 am — 1:15 pm	10:05 am — 1:15 pm UA900 United Airlines London — San Francisco	11h 10m	Find flight from$401
1:45 pm — 4:55 pm	1:45 pm — 4:55 pm UA949 United Airlines London — San Francisco	11h 10m	Find flight from$390
6:30 am — 12:35 pm	6:30 am — 9:05 am UA9546 United Airlines London — Frankfurt 1h stop 10:05 am — 12:50 pm UA8829 United Airlines Frankfurt — San Francisco	14h 5m including layover	Find flight from$425
7:40 am — 2:50 pm	7:40 am — 10:30 am UA8884 United Airlines London — Munich 1h 20m stop 11:55 am — 3:00 pm UA195 United Airlines Munich — San Francisco	15h 10m including layover	Find flight from$423

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 05/06/2025

Flight Information

There are 2 flights by United Airlines from London to San Francisco every week with departures from Gatwick, London City, Heathrow, Luton, Stansted, Stratford International Rail St, Ebbsfleet International Rail St, London Biggin Hill, London-Waterloo, British Rail Terminal. All flights arrive at San Francisco, Embarkadero, China Basin Heliport.

Departures start from 10:05 am to 7:40 am. Nonstop flight is 11h 10m. The time difference between London and San Francisco is 8h.

The fastest flight 11h 10m
Average flight time 11h 10m
The earliest flight 10:05 am
The latest flight 7:40 am
Distance 5363 ml

The cheapest months for traveling to San Francisco are may (from 390 $), november (from 692 $), january (from 721 $).

The most expensive and popular months are december (from 890 $), february (from 721 $), january (from 721 $).

The cheapest flight by United Airlines that our users were able to find is $390. This airfare is economy class on one-way UA949 flight for May 9, 2025 leaving Heathrow in London at 1:45 pm, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

List of the most popular United Airlines airplanes flying from London to San Francisco:

Boeing 777

from $390

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Other Popular Airlines on the Route

Besides United Airlines there are other 5 airline carriers between London and San Francisco. Please review schedules and prices from the most popular airlines to find the best airfare deals from London to San Francisco.

Nonstop flights

There are 3 direct flights every day from London. Airlines and fares are below:

VS - Virgin Atlantic Airways

from $469

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Connecting Flights

List of flights with layovers (1 and more stops):

EI - Aer Lingus

from $597

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TP - TAP Portugal

from $218

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LH - Lufthansa

from $427

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AM - Aeromexico

from $721

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How to book an air ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected airfare.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
To find a plane ticket, please select dates.