Flights to Serra da Estrela from Boston - ￥41,650

View ￥41,650 flight on Mon, Oct 20, 2025Opens in a new window

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Cheap Flights from Boston to Serra da Estrela (BOS-OPO)

Prices were available within the past 7 days and start at ￥41,650 for one-way flights and ￥62,290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Sep 22 - Wed, Oct 1
BOS
Boston
OPO
Porto
￥62,290 Roundtrip, found 6 days ago
￥62,290
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, Sep 22 from Boston to Porto, returning Wed, Oct 1, priced at ￥62,290 found 6 days ago
United
Mon, Sep 22 - Wed, Oct 1
BOS
Boston
OPO
Porto
￥62,320 Roundtrip, found 6 days ago
￥62,320
Roundtrip
found 6 days ago
Select United flight, departing Mon, Sep 22 from Boston to Porto, returning Wed, Oct 1, priced at ￥62,320 found 6 days ago
Swiss International Air Lines
Mon, Sep 22 - Wed, Oct 1
BOS
Boston
OPO
Porto
￥63,528 Roundtrip, found 6 days ago
￥63,528
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Mon, Sep 22 from Boston to Porto, returning Wed, Oct 1, priced at ￥63,528 found 6 days ago
Lufthansa
Mon, Sep 22 - Wed, Oct 1
BOS
Boston
OPO
Porto
￥67,820 Roundtrip, found 6 days ago
￥67,820
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Mon, Sep 22 from Boston to Porto, returning Wed, Oct 1, priced at ￥67,820 found 6 days ago
Icelandair
Wed, Sep 24 - Thu, Oct 2
BOS
Boston
LIS
Lisbon
￥68,760 Roundtrip, found 5 days ago
￥68,760
Roundtrip
found 5 days ago
Select Icelandair flight, departing Wed, Sep 24 from Boston to Lisbon, returning Thu, Oct 2, priced at ￥68,760 found 5 days ago
TAP Portugal
Fri, Sep 26 - Mon, Sep 29
BOS
Boston
LIS
Lisbon
￥75,570 Roundtrip, found 5 days ago
￥75,570
Roundtrip
found 5 days ago
Select TAP Portugal flight, departing Fri, Sep 26 from Boston to Lisbon, returning Mon, Sep 29, priced at ￥75,570 found 5 days ago

Find the cheapest month to fly from Boston (BOS) to Lisbon (LIS)

November is typically the cheapest month to fly

From ￥49,650 - ￥105,867 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.