Porto (OPO) to Washington, D.C. (IAD) flights from EUR523

*Modifying this information may result in a different fare

*All amounts are in EUR. 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. 

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Lowest fares between Porto and Washington, D.C.

cmp-daily-histogram-bars-legend-min-price-aria-label EUR523
cmp-daily-histogram-bars-legend-max-price-aria-label EUR802
Displaying fares for August-2026
  • OPO–IAD, 17/08/2026 – 07/09/2026: From EUR802
    17

    Mo

    AUG

  • OPO–IAD, 18/08/2026 – 25/08/2026: From EUR726
    18

    Tu

  • OPO–IAD, 19/08/2026 – 26/08/2026: From EUR730
    19

    We

  • OPO–IAD, 20/08/2026 – 17/09/2026: From EUR737
    20

    Th

  • OPO–IAD, 21/08/2026 – 28/08/2026: From EUR746
    21

    Fr

  • OPO–IAD, 22/08/2026 – 25/08/2026: From EUR649
    22

    Sa

  • OPO–IAD, 23/08/2026 – 30/08/2026: From EUR695
    23

    Su

  • OPO–IAD, 24/08/2026 – 31/08/2026: From EUR639
    24

    Mo

  • OPO–IAD, 25/08/2026 – 22/09/2026: From EUR523
    25

    Tu

  • OPO–IAD, 26/08/2026 – 16/09/2026: From EUR543
    26

    We

  • OPO–IAD, 27/08/2026 – 30/08/2026: From EUR523
    27

    Th

  • OPO–IAD, 28/08/2026 – 25/09/2026: From EUR523
    28

    Fr

  • OPO–IAD, 29/08/2026 – 12/09/2026: From EUR523
    29

    Sa

  • OPO–IAD, 30/08/2026 – 06/09/2026: From EUR635
    30

    Su

  • OPO–IAD, 31/08/2026 – 14/09/2026: From EUR523
    31

    Mo

  • OPO–IAD, 01/09/2026 – 22/09/2026: From EUR533
    01

    Tu

    SEP

  • OPO–IAD, 02/09/2026 – 16/09/2026: From EUR523
    02

    We

  • OPO–IAD, 03/09/2026 – 24/09/2026: From EUR527
    03

    Th

  • OPO–IAD, 04/09/2026 – 02/10/2026: From EUR523
    04

    Fr

  • OPO–IAD, 05/09/2026 – 12/09/2026: From EUR523
    05

    Sa

  • OPO–IAD, 06/09/2026 – 04/10/2026: From EUR527
    06

    Su

  • OPO–IAD, 07/09/2026 – 28/09/2026: From EUR735
    07

    Mo

  • OPO–IAD, 08/09/2026 – 15/09/2026: From EUR523
    08

    Tu

  • OPO–IAD, 09/09/2026 – 30/09/2026: From EUR523
    09

    We

  • OPO–IAD, 10/09/2026 – 13/09/2026: From EUR523
    10

    Th

  • OPO–IAD, 11/09/2026 – 25/09/2026: From EUR523
    11

    Fr

  • OPO–IAD, 12/09/2026 – 26/09/2026: From EUR590
    12

    Sa

  • OPO–IAD, 13/09/2026 – 20/09/2026: From EUR548
    13

    Su

  • OPO–IAD, 14/09/2026 – 21/09/2026: From EUR537
    14

    Mo

  • OPO–IAD, 15/09/2026 – 22/09/2026: From EUR523
    15

    Tu

  • OPO–IAD, 16/09/2026 – 30/09/2026: From EUR527
    16

    We

  • RangeEUR523-EUR802