Flights Washington, D.C. – Porto (IAD-OPO) from $733*

*Modifying this information may result in a different fare

Book flights from Washington, D.C. to Porto

cmp-daily-histogram-bars-legend-min-price-aria-label $910
cmp-daily-histogram-bars-legend-max-price-aria-label $1.3K
Displaying fares for August-2026
  • IAD–OPO, 08/12/2026 – 08/26/2026: From $965
    12

    We

    aug

  • IAD–OPO, 08/13/2026 – 08/27/2026: From $1,025
    13

    Th

  • IAD–OPO, 08/14/2026 – 08/28/2026: From $1,025
    14

    Fr

  • IAD–OPO, 08/15/2026 – 09/12/2026: From $1,085
    15

    Sa

  • IAD–OPO, 08/16/2026 – 08/30/2026: From $1,025
    16

    Su

  • IAD–OPO, 08/17/2026 – 08/24/2026: From $1,025
    17

    Mo

  • IAD–OPO, 08/18/2026 – 08/25/2026: From $965
    18

    Tu

  • IAD–OPO, 08/19/2026 – 08/26/2026: From $965
    19

    We

  • IAD–OPO, 08/20/2026 – 08/27/2026: From $1,025
    20

    Th

  • IAD–OPO, 08/21/2026 – 08/28/2026: From $1,025
    21

    Fr

  • IAD–OPO, 08/22/2026 – 09/05/2026: From $1,202
    22

    Sa

  • IAD–OPO, 08/23/2026 – 08/30/2026: From $1,132
    23

    Su

  • IAD–OPO, 08/24/2026 – 09/21/2026: From $1,132
    24

    Mo

  • IAD–OPO, 08/25/2026 – 09/08/2026: From $1,072
    25

    Tu

  • IAD–OPO, 08/26/2026 – 09/02/2026: From $1,072
    26

    We

  • IAD–OPO, 08/27/2026 – 09/24/2026: From $1,142
    27

    Th

  • IAD–OPO, 08/28/2026 – 09/04/2026: From $1,142
    28

    Fr

  • IAD–OPO, 08/29/2026 – 09/12/2026: From $1,202
    29

    Sa

  • IAD–OPO, 08/30/2026 – 09/20/2026: From $1,132
    30

    Su

  • IAD–OPO, 08/31/2026 – 09/21/2026: From $1,132
    31

    Mo

  • IAD–OPO, 09/01/2026 – 09/08/2026: From $1,072
    01

    Tu

    sep

  • IAD–OPO, 09/02/2026 – 09/09/2026: From $1,076
    02

    We

  • IAD–OPO, 09/03/2026 – 09/10/2026: From $1,259
    03

    Th

  • IAD–OPO, 09/04/2026 – 09/11/2026: From $1,263
    04

    Fr

  • IAD–OPO, 09/05/2026 – 09/26/2026: From $1,206
    05

    Sa

  • IAD–OPO, 09/06/2026 – 09/20/2026: From $1,132
    06

    Su

  • IAD–OPO, 09/07/2026 – 09/21/2026: From $1,132
    07

    Mo

  • IAD–OPO, 09/08/2026 – 09/15/2026: From $910
    08

    Tu

  • IAD–OPO, 09/09/2026 – 09/16/2026: From $951
    09

    We

  • IAD–OPO, 09/10/2026 – 09/24/2026: From $980
    10

    Th

  • IAD–OPO, 09/11/2026 – 10/02/2026: From $980
    11

    Fr

  • Range$910-$1,263

    The best deals on flights from Washington, D.C. to Porto for the upcoming months

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    The best deals on flights from Washington, D.C. to Porto for the upcoming months
    From
    To
    Fare Type
    Dates
    Price
    Washington, D.C. (IAD)Porto (OPO)Round-trip
    /
    Economy
    11/09/2026 - 11/12/2026

    From

    $733

    Seen: 15 hrs ago

    Washington, D.C. (IAD)Porto (OPO)Round-trip
    /
    Economy
    11/10/2026 - 11/13/2026

    From

    $733

    Seen: 15 hrs ago

    Washington, D.C. (IAD)Porto (OPO)Round-trip
    /
    Economy
    11/10/2026 - 11/17/2026

    From

    $733

    Seen: 15 hrs ago

    Washington, D.C. (IAD)Porto (OPO)Round-trip
    /
    Economy
    11/10/2026 - 11/24/2026

    From

    $733

    Seen: 15 hrs ago

    Washington, D.C. (IAD)Porto (OPO)Round-trip
    /
    Economy
    11/10/2026 - 12/08/2026

    From

    $733

    Seen: 15 hrs ago

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.
    Air France airplane

    Travel from Washington, D.C. to Porto with Air France

    Whether you're looking for a last-minute Washington, D.C. - Porto (Portugal) flight or planning a flight at a later date, take advantage of our lowest prices for your travel dates on this site. Take a look at the next 6 months and find the best price to fly whit Air France from Washington, D.C. (IAD) to Porto (OPO) or directly pick your departure date if your trip to Porto (Portugal) is already scheduled.