Trip.com
US$349Collected
Compare pricesFlights from San Francisco to London
SFO → LON · compared across 9 travel sites
- Flight time
- from 11h 38m nonstop
- Distance
- 8,616 km
- Typical one-way
- US$349
Compare San Francisco → London prices on 9 travel sites
Add your dates and open the same search on each travel site to find the cheapest fare. You book directly with the provider.
Booking.com
US$494Collected
Compare pricesAgoda
Flight + hotel bundles that can beat booking separately.
Compare pricesKayak
One of the largest flight metasearch engines worldwide.
Compare pricesKiwi.com
Virtual interlining specialist that mixes airlines creatively.
Compare pricesExpedia
Global OTA giant with package deals and member prices.
Compare pricesSkyscanner
The benchmark flight metasearch — “search everywhere”.
Compare pricesPriceline
Long-standing US OTA with express deals for flights.
Compare pricesMomondo
Kayak-family metasearch known for winning price comparisons.
Compare pricesFares auto-collected from partner search results on 2026-09-03 (one-way, economy).
Typical prices & when to book
Lowest fare collected
US$349
Trip.com
Auto-collected from Trip.com search results on 2026-09-03 (one-way, economy). Fares change constantly — click “Compare prices” for live fares.
San Francisco → London route guide
The San Francisco (SFO) to London (LON) route covers roughly 8,616 km, with an estimated flight time of about 11h 38m for a nonstop service. Compare the travel sites above to find the best fare for your dates — availability and prices differ between them.
Departures use San Francisco Intl; arrivals use Heathrow. Both airports handle the route with regular schedules, so same-day connections and day trips are realistic options.
San Francisco → London flight FAQ
How long is the flight from San Francisco to London?
Nonstop flights from San Francisco to London take about 11h 38m. The route covers approximately 8,616 km.
How do I find the cheapest flights from San Francisco to London?
Compare the same dates across the 9 travel sites listed above — their fares differ by provider. Midweek departures, flexible dates and booking a few weeks ahead usually help.
Are there direct flights from San Francisco to London?
Direct availability changes by season and carrier. The estimated nonstop flight time is about 11h 38m; one-stop options are widely available.