Cheapest return flights from San Francisco (SFO) to London (LTN)

Cheapest month: January 2027, from $ 583. Book in one tap, or open a month for every date.

All destinations from San Francisco (SFO)

One-wayReturn

  • October 2026

    19 Oct – 2 Nov 14 nights
    $ 765 return
    Aer Lingus
    Price seen 10 Oct
    October dates

  • November 2026

    25 Nov – 9 Dec 14 nights
    $ 609 return
    Scandinavian Airlines
    Price seen 11 Oct
    November dates

  • December 2026

    2–9 Dec 7 nights
    $ 631 return
    Scandinavian Airlines
    Price seen 10 Oct
    December dates

  • January 2027

    21–28 Jan 2027 7 nights
    $ 583 return Cheapest month
    Scandinavian Airlines
    Price seen 11 Oct
    January dates

  • February 2027

    10–24 Feb 2027 14 nights
    $ 638 return
    Scandinavian Airlines
    Price seen 11 Oct
    February dates

  • April 2027

    20 Apr – 2 May 2027 12 nights
    $ 842 return
    Air Canada
    Price seen 11 Oct
    April dates

  • May 2027

    28 May – 3 Jul 2027 36 nights
    $ 1,125 return
    TAP
    Price seen 10 Oct
    May dates

  • September 2027

    14 Sep – 4 Oct 2027 20 nights
    $ 1,422 return
    Aer Lingus
    Price seen 11 Oct
    September dates
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Updated Oct 11, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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