American Airlines flights from San Francisco to London

Recent searches for flights from San Francisco to London

Sep 2026
From$731*
Updated: 7 hours ago
Round tripIEconomy
Oct 2026
From$731*
Updated: 7 hours ago
Round tripIEconomy
Nov 2026
From$731*
Updated: 7 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $731
cmp-daily-histogram-bars-legend-max-price-aria-label $1.5K
Displaying fares for September-2026
  • SFO–LCY, 09/13/26 – 09/20/26: From $1,472
    13

    Su

    SEP

  • SFO–LHR, 09/14/26 – 09/21/26: From $1,143
    14

    Mo

  • SFO–LHR, 09/15/26 – 09/30/26: From $1,078
    15

    Tu

  • SFO–LON, 09/16/26 – 09/23/26: From $1,089
    16

    We

  • SFO–LON, 09/17/26 – 09/24/26: From $1,143
    17

    Th

  • SFO–LON, 09/18/26 – 09/25/26: From $1,143
    18

    Fr

  • SFO–LHR, 09/19/26 – 09/26/26: From $846
    19

    Sa

  • SFO–LON, 09/20/26 – 09/27/26: From $861
    20

    Su

  • SFO–LON, 09/21/26 – 09/28/26: From $796
    21

    Mo

  • SFO–LON, 09/22/26 – 09/29/26: From $746
    22

    Tu

  • SFO–LON, 09/23/26 – 09/30/26: From $746
    23

    We

  • SFO–LHR, 09/24/26 – 10/01/26: From $792
    24

    Th

  • SFO–LHR, 09/25/26 – 10/02/26: From $796
    25

    Fr

  • SFO–LON, 09/26/26 – 10/03/26: From $846
    26

    Sa

  • SFO–LHR, 09/27/26 – 10/04/26: From $966
    27

    Su

  • SFO–LHR, 09/28/26 – 10/05/26: From $792
    28

    Mo

  • SFO–LHR, 09/29/26 – 10/13/26: From $731
    29

    Tu

  • SFO–LHR, 09/30/26 – 10/07/26: From $746
    30

    We

  • SFO–LHR, 10/01/26 – 10/08/26: From $796
    01

    Th

    OCT

  • SFO–LHR, 10/02/26 – 10/09/26: From $796
    02

    Fr

  • SFO–LHR, 10/03/26 – 10/10/26: From $911
    03

    Sa

  • SFO–LON, 10/04/26 – 10/30/26: From $731
    04

    Su

  • SFO–LHR, 10/05/26 – 10/12/26: From $792
    05

    Mo

  • SFO–LHR, 10/06/26 – 10/13/26: From $731
    06

    Tu

  • SFO–LON, 10/07/26 – 10/14/26: From $731
    07

    We

  • SFO–LHR, 10/08/26 – 10/15/26: From $792
    08

    Th

  • SFO–LON, 10/09/26 – 10/16/26: From $796
    09

    Fr

  • SFO–LHR, 10/10/26 – 10/17/26: From $907
    10

    Sa

  • SFO–LHR, 10/11/26 – 10/19/26: From $792
    11

    Su

  • SFO–LHR, 10/12/26 – 10/19/26: From $792
    12

    Mo

    • range$731-$1,472

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on San Francisco to London flights

    $
    keyboard_arrow_down

    San Francisco (SFO)to

    London (LON)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    London (LON)
    12/08/26 - 12/15/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    London (LON)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    London (LON)
    10/07/26 - 10/14/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    London (LON)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    London (LON)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    London (LON)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    San Francisco (SFO)to

    London (LON)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $731Fare subject to changes
    Updated: 4 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from San Francisco to London

    Looking for lower fares on your trip from San Francisco to London? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

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    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from San Francisco to London