We've found an exceptional first class fare from San Francisco to London at €6,189 — that's 39% below the usual route average of €10,155. This Alaska, American first class deal represents significant savings for travelers looking to fly round-trip between San Francisco and London.

This round-trip journey features 1 stop with a total travel time of 14 hr 45 min. Outbound travel is on Aug 20, 2026, with a return on Aug 27, 2026.

We recommend booking directly through the airline or a trusted booking platform. At these discounted rates, availability can change quickly. Consider flexible fare options if your travel dates aren't fixed.

United Kingdom operates on the UTC+0 timezone, and the local currency is the GBP. The primary language spoken is English. Steeped in centuries of royal heritage, the United Kingdom offers iconic landmarks from Big Ben to the Scottish Highlands, alongside a thriving arts and music scene.

This deal was detected by our automated price comparison system, which continuously monitors flight prices across hundreds of routes. By comparing current prices against historical averages, we identify genuine discounts — not artificially inflated "sales." When we detect a price significantly below the route average, we flag it as a deal.