Cheap flights from San Francisco (SFO) to London (LON)

Flight FAQs

From San Francisco to London

What airport do you fly from for flights from San Francisco to London?

Most people fly from San Francisco (SFO) if they book a flight from San Francisco to London. On average, San Francisco has 18 outbound flights to London per day from 23 airlines. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

Which airlines flying from San Francisco to London have flexible cancellations due to COVID-19?

Some of the carriers operating flights from San Francisco to London that may be offering flexible cancellation policies are United Airlines, Virgin Atlantic, and British Airways. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Are flight prices decreasing from San Francisco to London due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both San Francisco and London for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from San Francisco to London for under $400 on Cheapflights?

Yes, there are multiple flights from San Francisco to London for under $400. The cheapest flight booked recently is on Multiple Airlines for just $342, but on average you can expect to pay $393.

Are there nonstop flights from San Francisco to London for under $500 on Cheapflights?

Cheapflights has at least 20 direct flights from San Francisco to London under $500. A good price for a nonstop flight from San Francisco to London is less than $437.

Are there last-minute flights available from San Francisco to London for under $600?

There are currently 20+ open flights from San Francisco to London within the next 7 days for less than $600.

What are the cheapest airlines flying from San Francisco to London round-trip?

Cheapflights users have booked flights from San Francisco to London round-trip from $413. Other airlines that can offer you cheap pricing are British Airways, from $415, and American Airlines, from $417. Finnair is 19% cheaper than the average price of flights available within the next 90 days to this destination.