Washington, D.C. (IAD) to London (LHR) flights from USD848

*Modifying this information may result in a different fare

*All amounts are in USD. Taxes and surcharges are included. No booking fee is applicable. Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional baggage fees may apply.

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Lowest fares between Washington, D.C. and London

cmp-daily-histogram-bars-legend-min-price-aria-label USD853
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.1K
Displaying fares for September-2026
  • IAD–LHR, 09/29/2026 – 10/06/2026: From USD1,030
    29

    Tu

    SEP

  • IAD–LHR, 09/30/2026 – 10/28/2026: From USD1,030
    30

    We

  • IAD–LHR, 10/01/2026 – 10/22/2026: From USD1,080
    01

    Th

    OCT

  • IAD–LHR, 10/02/2026 – 10/30/2026: From USD1,080
    02

    Fr

  • IAD–LHR, 10/03/2026 – 10/31/2026: From USD1,125
    03

    Sa

  • IAD–LHR, 10/04/2026 – 10/11/2026: From USD1,075
    04

    Su

  • IAD–LHR, 10/05/2026 – 10/19/2026: From USD1,075
    05

    Mo

  • IAD–LHR, 10/06/2026 – 11/03/2026: From USD1,025
    06

    Tu

  • IAD–LHR, 10/07/2026 – 10/28/2026: From USD1,030
    07

    We

  • IAD–LHR, 10/08/2026 – 10/22/2026: From USD1,080
    08

    Th

  • IAD–LHR, 10/09/2026 – 10/30/2026: From USD1,080
    09

    Fr

  • IAD–LHR, 10/10/2026 – 10/31/2026: From USD1,125
    10

    Sa

  • IAD–LHR, 10/11/2026 – 11/08/2026: From USD1,075
    11

    Su

  • IAD–LHR, 10/12/2026 – 11/02/2026: From USD1,075
    12

    Mo

  • IAD–LHR, 10/13/2026 – 10/27/2026: From USD1,025
    13

    Tu

  • IAD–LHR, 10/14/2026 – 11/04/2026: From USD1,025
    14

    We

  • IAD–LHR, 10/15/2026 – 10/29/2026: From USD1,075
    15

    Th

  • IAD–LHR, 10/16/2026 – 10/23/2026: From USD1,075
    16

    Fr

  • IAD–LHR, 10/17/2026 – 10/31/2026: From USD1,125
    17

    Sa

  • IAD–LHR, 10/18/2026 – 11/08/2026: From USD1,075
    18

    Su

  • IAD–LHR, 10/19/2026 – 11/02/2026: From USD1,075
    19

    Mo

  • IAD–LHR, 10/20/2026 – 10/27/2026: From USD1,025
    20

    Tu

  • IAD–LHR, 10/21/2026 – 10/28/2026: From USD1,025
    21

    We

  • IAD–LHR, 10/22/2026 – 11/05/2026: From USD1,075
    22

    Th

  • IAD–LHR, 10/23/2026 – 10/30/2026: From USD1,080
    23

    Fr

  • IAD–LHR, 10/24/2026 – 10/31/2026: From USD1,130
    24

    Sa

  • IAD–LHR, 10/25/2026 – 11/01/2026: From USD1,080
    25

    Su

  • IAD–LHR, 10/26/2026 – 11/16/2026: From USD903
    26

    Mo

  • IAD–LHR, 10/27/2026 – 11/03/2026: From USD853
    27

    Tu

  • IAD–LHR, 10/28/2026 – 11/04/2026: From USD853
    28

    We

  • RangeUSD853-USD1,130