Flights from Boston to Porto from USD 605

Promo Code

Book with zero change fees

Change of plans? Flight changes are free for bookings made between May 15 and June 15.

Book Now

Passengers sitting inside an airplane cabin

Flights from Boston to Porto

Best Fares From

Try alternate month or interact with individual days below in order to find offers.
cmp-daily-histogram-bars-legend-min-price-aria-label USD 1.1K
Displaying fares for May-2026
  • 31

    Su

    MAY

  • 01

    Mo

  • 02

    Tu

  • 03

    We

  • 04

    Th

  • 05

    Fr

  • 06

    Sa

  • 07

    Su

  • 08

    Mo

  • 09

    Tu

  • 10

    We

  • 11

    Th

  • 12

    Fr

  • 13

    Sa

  • 14

    Su

  • 15

    Mo

  • 16

    Tu

  • 17

    We

  • 18

    Th

  • 19

    Fr

  • 20

    Sa

  • 21

    Su

  • 22

    Mo

  • 23

    Tu

  • 24

    We

  • 25

    Th

  • 26

    Fr

  • 27

    Sa

  • 28

    Su

  • 29

    Mo

  • 30

    Tu

  • RangeUSD 1,135-USD 1,873

    Best Flight Deals from Boston to Porto

    USD
    keyboard_arrow_down
    Best Flight Deals from Boston to Porto
    From
    To
    Fare Type
    Dates
    Price
    Boston (BOS)Porto (OPO)Round trip
    |
    Economy
    25/10/2026 - 17/11/2026

    From

    USD 605

    Viewed 1 day ago

    Boston (BOS)Porto (OPO)Round trip
    |
    Economy
    10/08/2026 - 09/09/2026

    From

    USD 635

    Viewed 1 day ago

    Boston (BOS)Porto (OPO)Round trip
    |
    Economy
    29/01/2027 - 02/02/2027

    From

    USD 647

    Viewed 15 hours ago

    Boston (BOS)Porto (OPO)Round trip
    |
    Economy
    14/04/2027 - 25/04/2027

    From

    USD 655

    Viewed 21 hours ago

    Boston (BOS)Porto (OPO)Round trip
    |
    Economy
    10/08/2026 - 23/09/2026

    From

    USD 658

    Viewed 1 day ago

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.

    Business Flights Deals

    USD

    Boston (BOS)to

    Porto (OPO)
    23/08/2026 - 30/08/2026

    Round trip

    Business

    From
    USD 3,070
    Viewed 1 day ago

    Boston (BOS)to

    Porto (OPO)
    10/08/2026 - 09/09/2026

    Round trip

    Business

    From
    USD 3,048
    Viewed 1 day ago

    *The fares shown have been updated in the last 48 hours and may no longer be available at the time of booking. Additional fees and charges may apply for optional products and services.