Alaska Airlines connects London with San Francisco for €538 return. Median price is €547. Book in advance to secure these fares.
Price and when to book
The lowest price found is €538 for November travel. Median price stands at €547, so waiting won't guarantee better rates. As a rule, book 6–8 weeks ahead for international routes. Prices checked on 22 October 2026.
Airline and stops
Alaska Airlines operates this route with one stop. It's not direct, but one layover is standard for this transatlantic connection. Check your booking for the stopover location and connection time to plan better.
Best time to travel
November is a good choice: less crowded than summer and pleasant autumn weather in San Francisco (15–20°C). Avoid July and August if you want lower fares. January and February are quiet months too.
What to do when you arrive
San Francisco has the Golden Gate Bridge, Alcatraz, Market Street walks and neighbourhoods like Mission District and Castro. The international airport is 21 km from the centre; direct public transport available. On your first visit, allow 2–3 days minimum.
FAQ
What's the cheapest price for London to San Francisco?
€538 return with Alaska Airlines. This is the lowest price recorded. Median sits at €547, so there are options just above that.
Is the flight direct or does it have stops?
One stop. No direct flights are common on this route; one layover is standard and works fine with a smooth connection.
Which airline flies this route?
Alaska Airlines. This is the available option at these prices. Check your booking for included services (baggage, meals, etc.).
When should I book to get this price?
The sooner the better. Book 6–8 weeks ahead for better chances of a low fare. Prices rise as departure date approaches.
Photo: Wikimedia Commons. Return economy fares for 1 adult, checked on Kiwi.com on the date shown; they can change.
