Flights from Washington, D.C. to Porto from USD 610

Promo Code

Flights from Washington, D.C. to Porto

Discover the cheapest day and month to travel

Sep 2026
FromUSD 752*
Viewed 1 day ago
Flight Type Round Trip|Economy
Oct 2026
FromUSD 911*
Viewed 10 hours ago
Flight Type Round Trip|Economy
Nov 2026
Try another month to see offers
cmp-daily-histogram-bars-legend-min-price-aria-label USD 752
Displaying fares for September-2026
  • IAD–OPO, 25/09/2026 – 30/09/2026: From USD 784
    25

    Fr

    SEP

  • IAD–OPO, 26/09/2026 – 02/10/2026: From USD 752
    26

    Sa

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    27

    Su

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    28

    Mo

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    29

    Tu

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    30

    We

  • IAD–OPO, 01/10/2026 – 22/10/2026: From USD 939
    01

    Th

    OCT

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    02

    Fr

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    03

    Sa

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    04

    Su

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    05

    Mo

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    06

    Tu

  • IAD–OPO, 07/10/2026 – 14/10/2026: From USD 996
    07

    We

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    08

    Th

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    09

    Fr

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    10

    Sa

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    11

    Su

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    12

    Mo

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    13

    Tu

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    14

    We

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    15

    Th

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    16

    Fr

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    17

    Sa

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    18

    Su

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    19

    Mo

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    20

    Tu

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    21

    We

  • IAD–OPO, 22/10/2026 – 26/10/2026: From USD 911
    22

    Th

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    23

    Fr

  • IAD–OPO: cmp-view-offers-disclaimer. Find Offers
    24

    Sa

    • RangeUSD 752-USD 996

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

    Best Flight Deals from Washington, D.C. to Porto

    USD
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    Best Flight Deals from Washington, D.C. to Porto
    From
    To
    Fare Type
    Dates
    Price
    Washington, D.C. (IAD)Porto (OPO)Round trip
    |
    Economy    		27/12/2026 - 08/01/2027

    From

    USD 969

    Viewed 16 hours ago

    Washington, D.C. (IAD)Porto (OPO)Round trip
    |
    Economy    		22/12/2026 - 28/12/2026

    From

    USD 1,069

    Viewed 7 hours ago

    Washington, D.C. (IAD)Porto (OPO)Round trip
    |
    Economy    		18/01/2027 - 07/03/2027

    From

    USD 610

    Viewed 1 day ago

    Washington, D.C. (IAD)Porto (OPO)Round trip
    |
    Economy    		11/12/2026 - 28/12/2026

    From

    USD 764

    Viewed 1 day ago

    Washington, D.C. (IAD)Porto (OPO)Round trip
    |
    Economy    		26/12/2026 - 03/01/2027

    From

    USD 1,434

    Viewed 1 day ago

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

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    Business Flights Deals

    USD

    Washington, D.C. (IAD)to

    Porto (OPO)
    22/12/2026 - 28/12/2026

    Round trip

    Business

    From
    USD 5,720
    Viewed 7 hours ago

    Washington, D.C. (IAD)to

    Porto (OPO)
    11/12/2026 - 28/12/2026

    Round trip

    Business

    From
    USD 4,017
    Viewed 1 day ago
    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

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