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 USD916
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.2K
Displaying fares for August-2026
  • IAH–OPO, 08/05/2026 – 08/19/2026: From USD967
    05

    We

    AUG

  • IAH–OPO, 08/06/2026 – 08/20/2026: From USD1,027
    06

    Th

  • IAH–OPO, 08/07/2026 – 08/28/2026: From USD1,027
    07

    Fr

  • IAH–OPO, 08/08/2026 – 08/22/2026: From USD1,087
    08

    Sa

  • IAH–OPO, 08/09/2026 – 08/23/2026: From USD1,027
    09

    Su

  • IAH–OPO, 08/10/2026 – 08/31/2026: From USD1,027
    10

    Mo

  • IAH–OPO, 08/11/2026 – 09/01/2026: From USD967
    11

    Tu

  • IAH–OPO, 08/12/2026 – 09/09/2026: From USD967
    12

    We

  • IAH–OPO, 08/13/2026 – 09/10/2026: From USD1,027
    13

    Th

  • IAH–OPO, 08/14/2026 – 08/28/2026: From USD1,027
    14

    Fr

  • IAH–OPO, 08/15/2026 – 08/29/2026: From USD1,087
    15

    Sa

  • IAH–OPO, 08/16/2026 – 09/06/2026: From USD1,027
    16

    Su

  • IAH–OPO, 08/17/2026 – 08/24/2026: From USD1,027
    17

    Mo

  • IAH–OPO, 08/18/2026 – 09/08/2026: From USD967
    18

    Tu

  • IAH–OPO, 08/19/2026 – 09/02/2026: From USD967
    19

    We

  • IAH–OPO, 08/20/2026 – 09/10/2026: From USD1,027
    20

    Th

  • IAH–OPO, 08/21/2026 – 09/11/2026: From USD1,027
    21

    Fr

  • IAH–OPO, 08/22/2026 – 08/29/2026: From USD1,248
    22

    Sa

  • IAH–OPO, 08/23/2026 – 08/30/2026: From USD1,178
    23

    Su

  • IAH–OPO, 08/24/2026 – 08/31/2026: From USD1,178
    24

    Mo

  • IAH–OPO, 08/25/2026 – 09/01/2026: From USD1,118
    25

    Tu

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

    We

  • IAH–OPO, 08/27/2026 – 09/17/2026: From USD1,188
    27

    Th

  • IAH–OPO, 08/28/2026 – 09/04/2026: From USD1,188
    28

    Fr

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

    Sa

  • IAH–OPO, 08/30/2026 – 09/20/2026: From USD1,178
    30

    Su

  • IAH–OPO, 08/31/2026 – 09/14/2026: From USD1,178
    31

    Mo

  • IAH–OPO, 09/01/2026 – 09/15/2026: From USD916
    01

    Tu

    SEP

  • IAH–OPO, 09/02/2026 – 09/30/2026: From USD983
    02

    We

  • IAH–OPO, 09/03/2026 – 09/17/2026: From USD1,234
    03

    Th

  • IAH–OPO, 09/04/2026 – 09/11/2026: From USD1,131
    04

    Fr

  • RangeUSD916-USD1,248