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 USD929
cmp-daily-histogram-bars-legend-max-price-aria-label USD1.2K
Displaying fares for August-2026
  • BOS–OPO, 08/24/2026 – 09/14/2026: From USD1,186
    24

    Mo

    AUG

  • BOS–OPO, 08/25/2026 – 09/15/2026: From USD1,122
    25

    Tu

  • BOS–OPO, 08/26/2026 – 09/02/2026: From USD1,136
    26

    We

  • BOS–OPO, 08/27/2026 – 09/10/2026: From USD1,177
    27

    Th

  • BOS–OPO, 08/28/2026 – 09/11/2026: From USD1,163
    28

    Fr

  • BOS–OPO, 08/29/2026 – 09/01/2026: From USD1,114
    29

    Sa

  • BOS–OPO, 08/30/2026 – 09/02/2026: From USD1,124
    30

    Su

  • BOS–OPO, 08/31/2026 – 09/03/2026: From USD1,110
    31

    Mo

  • BOS–OPO, 09/01/2026 – 09/15/2026: From USD1,083
    01

    Tu

    SEP

  • BOS–OPO, 09/02/2026 – 09/16/2026: From USD1,083
    02

    We

  • BOS–OPO, 09/03/2026 – 09/10/2026: From USD1,205
    03

    Th

  • BOS–OPO, 09/04/2026 – 09/11/2026: From USD1,217
    04

    Fr

  • BOS–OPO, 09/05/2026 – 09/08/2026: From USD1,129
    05

    Sa

  • BOS–OPO, 09/06/2026 – 09/09/2026: From USD1,124
    06

    Su

  • BOS–OPO, 09/07/2026 – 09/10/2026: From USD1,124
    07

    Mo

  • BOS–OPO, 09/08/2026 – 09/15/2026: From USD1,095
    08

    Tu

  • BOS–OPO, 09/09/2026 – 09/16/2026: From USD1,083
    09

    We

  • BOS–OPO, 09/10/2026 – 09/24/2026: From USD1,124
    10

    Th

  • BOS–OPO, 09/11/2026 – 09/25/2026: From USD1,124
    11

    Fr

  • BOS–OPO, 09/12/2026 – 09/15/2026: From USD1,124
    12

    Sa

  • BOS–OPO, 09/13/2026 – 09/16/2026: From USD1,124
    13

    Su

  • BOS–OPO, 09/14/2026 – 09/17/2026: From USD1,110
    14

    Mo

  • BOS–OPO, 09/15/2026 – 09/22/2026: From USD1,083
    15

    Tu

  • BOS–OPO, 09/16/2026 – 09/23/2026: From USD1,083
    16

    We

  • BOS–OPO, 09/17/2026 – 09/24/2026: From USD1,042
    17

    Th

  • BOS–OPO, 09/18/2026 – 09/25/2026: From USD1,054
    18

    Fr

  • BOS–OPO, 09/19/2026 – 09/22/2026: From USD989
    19

    Sa

  • BOS–OPO, 09/20/2026 – 09/23/2026: From USD929
    20

    Su

  • BOS–OPO, 09/21/2026 – 09/24/2026: From USD929
    21

    Mo

  • BOS–OPO, 09/22/2026 – 09/25/2026: From USD929
    22

    Tu

  • BOS–OPO, 09/23/2026 – 10/21/2026: From USD941
    23

    We

  • RangeUSD929-USD1,217