Flights to Sé from Boston - ￥43,220

View ￥43,220 flight on Mon, Sep 29, 2025Opens in a new window

Popular airlines from Boston to Sé

  • British Airways

    British Airways

  • American Airlines

    American Airlines

  • Iberia

    Iberia

  • Swiss International Air Lines

    Swiss International Air Lines

  • United

    United

  • KLM

    KLM

  • Lufthansa

    Lufthansa

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Cheap Flights from Boston to Sé (BOS-OPO)

Prices were available within the past 7 days and start at ￥43,220 for one-way flights and ￥71,090 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Sep 29 - Sun, Oct 5
BOS
Boston
OPO
Porto
￥71,090 Roundtrip, found 6 days ago
￥71,090
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Sep 29 from Boston to Porto, returning Sun, Oct 5, priced at ￥71,090 found 6 days ago
Swiss International Air Lines
Fri, Oct 10 - Mon, Oct 13
BOS
Boston
OPO
Porto
￥72,810 Roundtrip, found 1 day ago
￥72,810
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Fri, Oct 10 from Boston to Porto, returning Mon, Oct 13, priced at ￥72,810 found 1 day ago
KLM
Fri, Oct 10 - Mon, Oct 13
BOS
Boston
OPO
Porto
￥82,050 Roundtrip, found 1 day ago
￥82,050
Roundtrip
found 1 day ago
Select KLM flight, departing Fri, Oct 10 from Boston to Porto, returning Mon, Oct 13, priced at ￥82,050 found 1 day ago
Delta
Fri, Oct 10 - Tue, Oct 14
BOS
Boston
OPO
Porto
￥89,170 Roundtrip, found 1 day ago
￥89,170
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Oct 10 from Boston to Porto, returning Tue, Oct 14, priced at ￥89,170 found 1 day ago
British Airways
Fri, Oct 10 - Mon, Oct 13
BOS
Boston
OPO
Porto
￥95,020 Roundtrip, found 1 day ago
￥95,020
Roundtrip
found 1 day ago
Select British Airways flight, departing Fri, Oct 10 from Boston to Porto, returning Mon, Oct 13, priced at ￥95,020 found 1 day ago
SATA International-Azores Airlines S.A.
Fri, Oct 10 - Mon, Oct 13
BOS
Boston
OPO
Porto
￥107,080 Roundtrip, found 1 day ago
￥107,080
Roundtrip
found 1 day ago
Select SATA International-Azores Airlines S.A. flight, departing Fri, Oct 10 from Boston to Porto, returning Mon, Oct 13, priced at ￥107,080 found 1 day ago

Find the cheapest month to fly from Boston (BOS) to Porto (OPO)

November is typically the cheapest month to fly

From ￥46,650 - ￥104,275 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.