London (LHR) to Washington, D.C. (IAD) flights from GBP458

*Modifying this information may result in a different fare

* All amounts are in GBP including taxes and surcharges, except where taxes are collected locally at the airport. A booking fee is not applicable, but a payment surcharge may apply. Prices and availability may change without notice, see KLM price display for more information. Fares displayed on this page have been collected within the last 48hrs and may no longer be available at time of booking. 

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Lowest fares between London and Washington, D.C.

cmp-daily-histogram-bars-legend-min-price-aria-label GBP485
cmp-daily-histogram-bars-legend-max-price-aria-label GBP837
Displaying fares for October-2026
  • LHR–IAD, 25/10/2026 – 08/11/2026: From GBP837
    25

    Su

    OCT

  • LHR–IAD, 26/10/2026 – 09/11/2026: From GBP717
    26

    Mo

  • LHR–IAD, 27/10/2026 – 24/11/2026: From GBP708
    27

    Tu

  • LHR–IAD, 28/10/2026 – 18/11/2026: From GBP668
    28

    We

  • LHR–IAD, 29/10/2026 – 26/11/2026: From GBP668
    29

    Th

  • LHR–IAD, 30/10/2026 – 27/11/2026: From GBP668
    30

    Fr

  • LHR–IAD, 31/10/2026 – 07/11/2026: From GBP708
    31

    Sa

  • LHR–IAD, 01/11/2026 – 08/11/2026: From GBP708
    01

    Su

    NOV

  • LHR–IAD, 02/11/2026 – 09/11/2026: From GBP721
    02

    Mo

  • LHR–IAD, 03/11/2026 – 01/12/2026: From GBP668
    03

    Tu

  • LHR–IAD, 04/11/2026 – 18/11/2026: From GBP694
    04

    We

  • LHR–IAD, 05/11/2026 – 08/11/2026: From GBP693
    05

    Th

  • LHR–IAD, 06/11/2026 – 27/11/2026: From GBP706
    06

    Fr

  • LHR–IAD, 07/11/2026 – 14/11/2026: From GBP569
    07

    Sa

  • LHR–IAD, 08/11/2026 – 15/11/2026: From GBP569
    08

    Su

  • LHR–IAD, 09/11/2026 – 30/11/2026: From GBP580
    09

    Mo

  • LHR–IAD, 10/11/2026 – 08/12/2026: From GBP596
    10

    Tu

  • LHR–IAD, 11/11/2026 – 02/12/2026: From GBP596
    11

    We

  • LHR–IAD, 12/11/2026 – 15/11/2026: From GBP588
    12

    Th

  • LHR–IAD, 13/11/2026 – 16/11/2026: From GBP569
    13

    Fr

  • LHR–IAD, 14/11/2026 – 05/12/2026: From GBP569
    14

    Sa

  • LHR–IAD, 15/11/2026 – 13/12/2026: From GBP561
    15

    Su

  • LHR–IAD, 16/11/2026 – 30/11/2026: From GBP585
    16

    Mo

  • LHR–IAD, 17/11/2026 – 08/12/2026: From GBP596
    17

    Tu

  • LHR–IAD, 18/11/2026 – 02/12/2026: From GBP596
    18

    We

  • LHR–IAD, 19/11/2026 – 22/11/2026: From GBP591
    19

    Th

  • LHR–IAD, 20/11/2026 – 23/11/2026: From GBP572
    20

    Fr

  • LHR–IAD, 21/11/2026 – 05/12/2026: From GBP503
    21

    Sa

  • LHR–IAD, 22/11/2026 – 06/12/2026: From GBP503
    22

    Su

  • LHR–IAD, 23/11/2026 – 07/12/2026: From GBP485
    23

    Mo

  • LHR–IAD, 24/11/2026 – 01/12/2026: From GBP490
    24

    Tu

  • RangeGBP485-GBP837