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SFO → LHR · about 10h 53m nonstop · 5,354 miles · 4 airlines · fares updated September 13, 2026
Fares shown are recorded lows. An agent confirms today's live price on the call.
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Call to book from $760(708) 866-8751The lowest fares recorded on this route in recent searches. Call and an agent checks whether a similar fare is still open for your dates.
Recorded fares for SFO to LHR from cached search data, not live quotes. An agent confirms availability and today's price on the call.
This guide covers everything you need to book a flight from San Francisco (SFO) to London (LHR): recent low fares, airlines, flight time, airport choices, and the cheapest months. Prices below are recorded lows rather than live quotes, so call (708) 866-8751 for a current fare; agents are available 24/7, every day.
The lowest one-way fare we have on record for this route is $760. Fares like that usually show up on off-peak days and for travel booked a few weeks out; an agent can check whether a similar fare is available for your dates.
Because Delta Air Lines treats London as a hub, this pairing tends to have frequent departures throughout the day. American Airlines and British Airways also compete here, which keeps fares in check.
This is a 5,354 miles journey, about 10h 53m in the air on a nonstop, which puts it firmly in long-haul territory: baggage allowances, seat selection fees, and stopover options change the real cost of the ticket as much as the base fare does.
Prices are currently typical for this route. Typical one-way lows run $797 to $811 by month; the lowest fare recorded recently was $760.
Lowest recorded one-way fare per month. Green marks the cheapest month.
For long-haul travel, mid-January to March and the shoulder months of October and November usually bring the lowest fares; June through August and the December holidays cost the most.
On this specific route our fare history shows October as the cheapest month and May as the most expensive, a spread of $133 between the two.
Tuesday, Wednesday, and Saturday departures are usually the cheapest days on long-haul routes; Friday and Sunday are the most expensive. Early-morning and late-evening flights are often priced below the midday departures.
For international travel, booking two to five months ahead usually gets the best fares; inside three weeks, prices rise sharply. Peak-season travel in summer and over the December holidays should be booked as early as possible.
Carriers most likely to serve this route, with the lowest fare recorded for each where our data names the airline. Agents compare all of them on one call.
| Airline | Recorded from | Changes on standard fares | Lowest fare brand | Call |
|---|---|---|---|---|
| Delta Air Lines | ask an agent | No fee, fare difference | Basic Economy | Call(708) 866-8751 |
| United Airlines | ask an agent | No fee, fare difference | Basic Economy | Call(708) 866-8751 |
| American Airlines | ask an agent | No fee, fare difference | Basic Economy | Call(708) 866-8751 |
| British Airways | ask an agent | Fee on some fares | Economy Basic | Call(708) 866-8751 |
Carriers listed are those most likely to serve the pair based on hubs and recorded fares. WarBird Flight is independent and not affiliated with any airline.
Departures use San Francisco International Airport (SFO), a hub for United.
You will land at London Heathrow Airport (LHR).
Fares from a neighboring airport are sometimes far lower than the drive is long. Agents quote all of these on one call.
Licensed agents at our partner agency handle these by phone, 24/7. No charge for a quote.
The lowest one-way fare we have recorded recently is $760. Fares change daily; call (708) 866-8751 for today's price.
A nonstop flight takes about 10h 53m to cover 5,354 miles. Connecting itineraries add two to five hours depending on the layover.
Delta Air Lines, United Airlines, American Airlines, and British Airways are the carriers most likely to serve this route. We book all of them.
Based on our fare history, October has the lowest recorded fares and May the highest.
Yes. Call (708) 866-8751 and a live agent will search every airline, quote today's fare, and book it for you. WarBird Flight is an independent travel booking service; calls are answered by licensed travel agents at our partner agency.
San Francisco International Airport (SFO) is the airport for this route.
A passport valid for your whole trip, plus any visa or entry authorization the destination requires. Agents check the current entry rules for London when you book and can note passport details on the reservation.
Yes on most carriers, with an unaccompanied-minor service fee and age limits that differ by airline. Nonstop flights are strongly preferred and some airlines require them for younger children. Agents can book the service, note the guardian details, and confirm the fee before you pay.
