Boston (BOS) to Porto (OPO) flights from USD660

*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 Boston and Porto

cmp-daily-histogram-bars-legend-min-price-aria-label USD914
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.2K
Displaying fares for August-2026
  • BOS–OPO, 08/04/2026 – 09/01/2026: From USD1,035
    04

    Tu

    AUG

  • BOS–OPO, 08/05/2026 – 08/26/2026: From USD1,035
    05

    We

  • BOS–OPO, 08/06/2026 – 08/27/2026: From USD1,095
    06

    Th

  • BOS–OPO, 08/07/2026 – 08/21/2026: From USD1,095
    07

    Fr

  • BOS–OPO, 08/08/2026 – 09/05/2026: From USD1,155
    08

    Sa

  • BOS–OPO, 08/09/2026 – 09/06/2026: From USD993
    09

    Su

  • BOS–OPO, 08/10/2026 – 08/31/2026: From USD993
    10

    Mo

  • BOS–OPO, 08/11/2026 – 09/01/2026: From USD929
    11

    Tu

  • BOS–OPO, 08/12/2026 – 08/26/2026: From USD929
    12

    We

  • BOS–OPO, 08/13/2026 – 09/10/2026: From USD989
    13

    Th

  • BOS–OPO, 08/14/2026 – 08/21/2026: From USD989
    14

    Fr

  • BOS–OPO, 08/15/2026 – 09/05/2026: From USD1,049
    15

    Sa

  • BOS–OPO, 08/16/2026 – 08/19/2026: From USD918
    16

    Su

  • BOS–OPO, 08/17/2026 – 08/20/2026: From USD918
    17

    Mo

  • BOS–OPO, 08/18/2026 – 09/15/2026: From USD914
    18

    Tu

  • BOS–OPO, 08/19/2026 – 09/02/2026: From USD929
    19

    We

  • BOS–OPO, 08/20/2026 – 08/27/2026: From USD989
    20

    Th

  • BOS–OPO, 08/21/2026 – 09/18/2026: From USD989
    21

    Fr

  • BOS–OPO, 08/22/2026 – 08/25/2026: From USD1,113
    22

    Sa

  • BOS–OPO, 08/23/2026 – 08/26/2026: From USD1,109
    23

    Su

  • BOS–OPO, 08/24/2026 – 08/27/2026: From USD1,109
    24

    Mo

  • BOS–OPO, 08/25/2026 – 09/15/2026: From USD1,068
    25

    Tu

  • BOS–OPO, 08/26/2026 – 09/02/2026: From USD1,083
    26

    We

  • BOS–OPO, 08/27/2026 – 09/10/2026: From USD1,124
    27

    Th

  • BOS–OPO, 08/28/2026 – 09/11/2026: From USD1,124
    28

    Fr

  • BOS–OPO, 08/29/2026 – 09/01/2026: From USD1,124
    29

    Sa

  • BOS–OPO, 08/30/2026 – 09/06/2026: From USD1,053
    30

    Su

  • BOS–OPO, 08/31/2026 – 09/21/2026: From USD1,053
    31

    Mo

  • BOS–OPO, 09/01/2026 – 09/29/2026: From USD989
    01

    Tu

    SEP

  • BOS–OPO, 09/02/2026 – 09/16/2026: From USD989
    02

    We

  • BOS–OPO, 09/03/2026 – 09/10/2026: From USD1,059
    03

    Th

  • RangeUSD914-USD1,155