Flights
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Sign up for Crystal Travel emails below to reveal a promo code you can use today.Book your flight from London Heathrow (LHR) to San Francisco (SFO) today on our user-friendly booking platform. Whether you’re searching for cheap flights from London Heathrow to San Francisco, direct flights, or the best flight deals, our site delivers transparent pricing, genuine savings, and a secure booking experience. Quickly compare all non‑stop and one‑stop options to lock in the ideal LHR → SFO itinerary for your schedule and budget.
Take advantage of limited-time offers on flights from London Heathrow to San Francisco. Our curated selection highlights non‑stop services as well as one‑stop connections, featuring airlines like Turkish Airlines, Lufthansa, and Aer Lingus for direct travel, plus competitive one‑stop fares via major European hubs. Every London Heathrow to San Francisco flight deal includes no‑fee booking, verified promotional discounts, and clear tax breakdowns—so you know exactly what you’ll pay.
Non‑stop flights from London Heathrow to San Francisco cover roughly 5,350 miles in about 10 to 11 hours of airtime, offering full‑service cabins with in‑flight entertainment, Wi‑Fi, and meal service. Economy, Premium Economy, Business, and First Class options are available on direct LHR to SFO routes, ensuring every traveller, from budget to luxury, finds the right balance of comfort and cost. One‑stop itineraries add 2–4 hours of connection time but can reduce ticket prices by up to 20% to 30%.
Use our flexible‑date search tool to reveal the lowest‑fare days across a whole month, or set up fare alerts to catch price dips on LHR to SFO routes. Booking roughly 8–12 weeks in advance tends to yield the best prices, especially for non‑stop services. Consider mid‑week departures (Tuesday–Thursday) to save up to 15% versus weekend travel. For budget travellers, one‑stop flights via Dublin, Frankfurt, or Amsterdam often undercut nonstop fares while still delivering a comfortable journey.
Lufthansa, Turkish Airlines, and Aer Lingus each operate daily nonstop services from London Heathrow to San Francisco, offering full‑service cabins with amenities such as in‑flight entertainment, Wi‑Fi, meals and lie‑flat seats in Business and First Class; alternatively, cost‑conscious travellers can choose one‑stop itineraries via major European hubs—Lufthansa through Frankfurt, KLM through Amsterdam or Aer Lingus through Dublin—which typically add 2–4 hours of connection time but can reduce fares by up to 30%.
Stay updated with live flight status for all London Heathrow to San Francisco departures. Receive immediate notifications on departure gates, delays, and arrival times—so you can plan ground transport and connections with confidence.
Round-trip fares from London Heathrow (LHR) to San Francisco (SFO) start at £749*. Prices vary with seasonality, summer months, and major events drive fares up, so planning ahead and using fare alerts can help you secure mid‑range prices before they climb further
February and September typically offer the lowest average fares for LHR to SFO travel. Winter demand dips after the holiday season, and early autumn sees fewer tourists, resulting in savings of up to 20% compared with peak summer months. Targeting off‑peak windows and mid‑week departures can maximise your savings
The optimal booking window for nonstop LHR to SFO flights is roughly 8–12 weeks before departure. Booking earlier than 12 weeks seldom improves prices, and last‑minute bookings (under two weeks out) tend to carry premium rates. One‑stop itineraries sometimes feature flash‑sale fares closer in, but for the most reliable savings on direct flights, secure your ticket about two to three months ahead
Yes. Turkish Airlines, Lufthansa, and Aer Lingus each operate daily nonstop services between LHR to SFO. These direct flights typically depart in the morning and deliver you to San Francisco in just over 11 hours of flight time, offering the convenience of no layovers and the choice of full‑service cabins from Economy through First Class
Nonstop flight time averages approximately 10 to 11 hours, covering about 5,350 miles. Actual block time can vary slightly—anywhere from 10 hours 45 minutes to 11 hours 30 minutes—depending on winds aloft, routing, and air traffic. Westbound journeys to San Francisco sometimes benefit from tailwinds, shaving a few minutes off the scheduled duration
Airlines such as Aer Lingus, Turkish Airlines, Singapore Airlines, and Lufthansa operate both non-stop and one-stop flights on this route.
Use flexible‑date searches to scan an entire month and identify the lowest‑fare days, aim to book around 8–12 weeks before departure when prices on LHR → SFO routes typically dip, subscribe to our newsletter for the lates updates and flight deals so you’re instantly notified, consider one‑stop connections on carriers like Lufthansa, Turkish Airlines, and Aer Lingus—which often undercut nonstop fares—and prioritise mid‑week departures (Tuesday–Thursday) to capture savings of up to 15% compared with weekend travel.
Explore car hire, hotel stays, and travel insurance options to complete your trip planning—and discover onward routes from San Francisco to Los Angeles, Las Vegas, and beyond.
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