Houston (IAH) to Porto (OPO) flights from USD709

*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 Houston and Porto

cmp-daily-histogram-bars-legend-min-price-aria-label USD867
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.4K
Displaying fares for August-2026
  • IAH–OPO, 08/25/2026 – 09/01/2026: From USD1,118
    25

    Tu

    AUG

  • IAH–OPO, 08/26/2026 – 09/02/2026: From USD1,118
    26

    We

  • IAH–OPO, 08/27/2026 – 09/10/2026: From USD1,188
    27

    Th

  • IAH–OPO, 08/28/2026 – 09/25/2026: From USD1,188
    28

    Fr

  • IAH–OPO, 08/29/2026 – 09/05/2026: From USD1,248
    29

    Sa

  • IAH–OPO, 08/30/2026 – 09/06/2026: From USD1,178
    30

    Su

  • IAH–OPO, 08/31/2026 – 09/07/2026: From USD1,178
    31

    Mo

  • IAH–OPO, 09/01/2026 – 09/15/2026: From USD1,118
    01

    Tu

    SEP

  • IAH–OPO, 09/02/2026 – 09/30/2026: From USD1,118
    02

    We

  • IAH–OPO, 09/03/2026 – 09/17/2026: From USD1,410
    03

    Th

  • IAH–OPO, 09/04/2026 – 09/11/2026: From USD1,188
    04

    Fr

  • IAH–OPO, 09/05/2026 – 09/19/2026: From USD1,248
    05

    Sa

  • IAH–OPO, 09/06/2026 – 09/20/2026: From USD1,281
    06

    Su

  • IAH–OPO, 09/07/2026 – 09/21/2026: From USD1,178
    07

    Mo

  • IAH–OPO, 09/08/2026 – 10/06/2026: From USD1,118
    08

    Tu

  • IAH–OPO, 09/09/2026 – 09/16/2026: From USD1,118
    09

    We

  • IAH–OPO, 09/10/2026 – 09/17/2026: From USD1,188
    10

    Th

  • IAH–OPO, 09/11/2026 – 09/25/2026: From USD1,188
    11

    Fr

  • IAH–OPO, 09/12/2026 – 09/19/2026: From USD1,248
    12

    Sa

  • IAH–OPO, 09/13/2026 – 10/11/2026: From USD1,226
    13

    Su

  • IAH–OPO, 09/14/2026 – 10/12/2026: From USD1,178
    14

    Mo

  • IAH–OPO, 09/15/2026 – 09/22/2026: From USD1,118
    15

    Tu

  • IAH–OPO, 09/16/2026 – 09/30/2026: From USD1,123
    16

    We

  • IAH–OPO, 09/17/2026 – 09/24/2026: From USD1,032
    17

    Th

  • IAH–OPO, 09/18/2026 – 09/25/2026: From USD1,213
    18

    Fr

  • IAH–OPO, 09/19/2026 – 10/10/2026: From USD1,099
    19

    Sa

  • IAH–OPO, 09/20/2026 – 10/11/2026: From USD1,075
    20

    Su

  • IAH–OPO, 09/21/2026 – 10/05/2026: From USD1,027
    21

    Mo

  • IAH–OPO, 09/22/2026 – 09/29/2026: From USD867
    22

    Tu

  • IAH–OPO, 09/23/2026 – 10/07/2026: From USD867
    23

    We

  • IAH–OPO, 09/24/2026 – 10/08/2026: From USD932
    24

    Th

  • RangeUSD867-USD1,410