Portland, OR (PDX) to Porto (OPO) flights from USD747

*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 Portland, OR and Porto

cmp-daily-histogram-bars-legend-min-price-aria-label USD948
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.4K
Displaying fares for August-2026
  • PDX–OPO, 08/18/2026 – 09/01/2026: From USD969
    18

    Tu

    AUG

  • PDX–OPO, 08/19/2026 – 09/02/2026: From USD965
    19

    We

  • PDX–OPO, 08/20/2026 – 08/27/2026: From USD1,025
    20

    Th

  • PDX–OPO, 08/21/2026 – 09/11/2026: From USD1,029
    21

    Fr

  • PDX–OPO, 08/22/2026 – 08/29/2026: From USD1,202
    22

    Sa

  • PDX–OPO, 08/23/2026 – 08/30/2026: From USD1,132
    23

    Su

  • PDX–OPO, 08/24/2026 – 08/31/2026: From USD1,132
    24

    Mo

  • PDX–OPO, 08/25/2026 – 09/08/2026: From USD1,072
    25

    Tu

  • PDX–OPO, 08/26/2026 – 09/02/2026: From USD1,076
    26

    We

  • PDX–OPO, 08/27/2026 – 09/17/2026: From USD1,146
    27

    Th

  • PDX–OPO, 08/28/2026 – 09/04/2026: From USD1,142
    28

    Fr

  • PDX–OPO, 08/29/2026 – 09/05/2026: From USD1,206
    29

    Sa

  • PDX–OPO, 08/30/2026 – 09/06/2026: From USD1,146
    30

    Su

  • PDX–OPO, 08/31/2026 – 09/21/2026: From USD1,136
    31

    Mo

  • PDX–OPO, 09/01/2026 – 09/08/2026: From USD1,076
    01

    Tu

    SEP

  • PDX–OPO, 09/02/2026 – 09/09/2026: From USD1,241
    02

    We

  • PDX–OPO, 09/03/2026 – 09/10/2026: From USD1,306
    03

    Th

  • PDX–OPO, 09/04/2026 – 09/11/2026: From USD1,311
    04

    Fr

  • PDX–OPO, 09/05/2026 – 09/19/2026: From USD1,220
    05

    Sa

  • PDX–OPO, 09/06/2026 – 09/13/2026: From USD1,246
    06

    Su

  • PDX–OPO, 09/07/2026 – 09/21/2026: From USD1,136
    07

    Mo

  • PDX–OPO, 09/08/2026 – 09/22/2026: From USD1,076
    08

    Tu

  • PDX–OPO, 09/09/2026 – 09/16/2026: From USD1,376
    09

    We

  • PDX–OPO, 09/10/2026 – 09/17/2026: From USD1,151
    10

    Th

  • PDX–OPO, 09/11/2026 – 09/18/2026: From USD1,306
    11

    Fr

  • PDX–OPO, 09/12/2026 – 09/19/2026: From USD1,212
    12

    Sa

  • PDX–OPO, 09/13/2026 – 10/11/2026: From USD1,153
    13

    Su

  • PDX–OPO, 09/14/2026 – 09/21/2026: From USD974
    14

    Mo

  • PDX–OPO, 09/15/2026 – 10/13/2026: From USD1,020
    15

    Tu

  • PDX–OPO, 09/16/2026 – 09/23/2026: From USD948
    16

    We

  • PDX–OPO, 09/17/2026 – 09/24/2026: From USD1,170
    17

    Th

  • RangeUSD948-USD1,376