$389 Cheap American Airlines flights San Francisco (SFO) to London (LHR)

View $389 flight on Wed, Sep 10, 2025Opens in a new window

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$389 Cheap American Airlines flights San Francisco (SFO) to London (LHR)

Prices were available within the past 7 days and start at $389 for one-way flights and $522 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Sep 10 - Fri, Sep 19
SFO
San Francisco
LHR
London
$522 Roundtrip, just found
$522
Roundtrip
just found
Select American Airlines flight, departing Wed, Sep 10 from San Francisco to London, returning Fri, Sep 19, priced at $522 just found
Flights from San Francisco (SFO) to London (LHR)
Origin airport
San Francisco Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Alaska Airlines, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic, WestJet
Popular airline
Lufthansa
Distance
5354 mi
Average flight time
18 hours 22 mins

Frequently asked questions

How much is an American Airlines flight from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
Apply the "Price (lowest to highest)" filter on Expedia to find cheap American Airlines return flights from $522 from SFO to LHR. Affordable one-way tickets from $389 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SFO to LHR with American Airlines?
American Airlines flights to London are typically cheaper in the quieter months of January and February. Whether you're in search of a one-way or round-trip ticket, you could find a better deal then.
What is the cheapest time to book flights from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR) with American Airlines?
To discover cheap flights from SFO to LHR with American Airlines, begin searching about one month before your intended departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another useful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does American Airlines fly nonstop from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
To see if there's a direct journey from SFO to LHR with American Airlines or any other airlines, use our "Nonstop" filter when searching for flights.
What is the earliest American Airlines flight from SFO to LHR?
Filter your results by "Early Morning" and "Morning" to browse the earliest departures from SFO to LHR. Heading off early means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does American Airlines fly into in London?
Heathrow Airport (LHR) is the main London hub for American Airlines flights from San Francisco Intl. Airport (SFO).
Can I change or cancel my American Airlines flight from San Francisco Intl. Airport (SFO) to Heathrow Airport (LHR)?
Changes are generally free within 24 hours of making a booking, but your airline may charge you after that time. For more information about altering your flights, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to change your plans without being charged, tick the "No cancel fee" or "Changes included" filter when organizing your trip.

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