Route · SFO → LHR
Flights from San Francisco to London
San Francisco to London Heathrow is one of the busiest transatlantic corridors in United States–Europe traffic, covering roughly 8,617 km great-circle with a typical block time just over ten hours eastbound and somewhat longer heading back against prevailing winds. United Airlines and American Airlines dominate the route with widebody equipment — typically Boeing 777s and 787s — while Lufthansa and Iberia serve it as connecting itineraries routed through Frankfurt and Madrid respectively, and Air New Zealand operates it as part of a longer transpacific tag. Most San Francisco departures use United's hub at Terminal 3 or the International Terminal, so confirm your terminal before heading to the airport. Fares tend to soften in late January through February and again in early November once the autumn travel surge fades, while premium-cabin award space on the route often opens up on midweek departures when corporate bookings are lighter.
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Cheapest dates to fly
Live prices · powered by AviasalesThe calendar below pulls live fares from our search partner for San Francisco (SFO) → London (LHR). Use the year… view to spot the cheapest week to fly, the day-of-week patterns most travellers miss, and any shoulder-season dips worth shifting your trip around. Prices refresh every few hours, so what you see is what your booking page should look like a moment later — click any date to jump straight to the fare on Aviasales.
Airlines on this route
6 carriersThe 6 carriers we currently track on the San Francisco–London route, from full-service flag carriers to low-cost competitors. Tap any airline for its full profile,… baggage rules, fleet context, and a live fare search pre-filtered to that carrier — useful if you're loyal to a frequent-flyer programme, want to compare onboard product on the same dates, or are weighing a cheaper one-stop against a pricier nonstop.
Flights from San Francisco to London
Live schedule · powered by AviasalesBelow is the published weekly schedule for nonstop and one-stop services from San Francisco to London — the actual flight numbers, departure and arrival times… your booking page will pull from. Use it to plan around departure preferences (early morning vs late evening), see which carriers fly on which weekdays, or pick a connection that lets you sleep in your own bed before a long-haul leg. Click any row to load it directly in the search.
Airport guides
Quick links into the airport profiles at both ends of the route. Each guide covers terminal layout, the airlines that base hubs at SFO and… LHR, the other routes those airports serve, and the ground-transit options most travellers wish they'd read about before landing — the practical context you only really need to know once you've booked, but want to skim before you do.