Cheap flights from San Francisco to Serra da Estrela

View AU$501 flight on Thu, 25 Sep. 2025Opens in a new window

Popular airlines from San Francisco to Serra da Estrela

  • Air Canada

    Air Canada

  • Air France

    Air France

  • British Airways

    British Airways

  • KLM

    KLM

  • Lufthansa

    Lufthansa

  • Swiss International Air Lines

    Swiss International Air Lines

  • American Airlines

    American Airlines

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Cheap Flights from San Francisco (SJC) to Serra da Estrela (OPO)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sun, 18 Jan. - Sat, 31 Jan.
SFO
San Francisco
LIS
Lisbon
AU$864 Return, found 2 days ago
AU$864
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Sun, 18 Jan. from San Francisco to Lisbon, returning Sat, 31 Jan., priced at AU$864 found 2 days ago
United
Tue, 20 Jan. - Tue, 3 Feb.
SFO
San Francisco
LIS
Lisbon
AU$879 Return, found 2 days ago
AU$879
Return
found 2 days ago
Select United flight, departing Tue, 20 Jan. from San Francisco to Lisbon, returning Tue, 3 Feb., priced at AU$879 found 2 days ago
Delta
Wed, 7 Jan. - Tue, 20 Jan.
SFO
San Francisco
LIS
Lisbon
AU$897 Return, found 2 days ago
AU$897
Return
found 2 days ago
Select Delta flight, departing Wed, 7 Jan. from San Francisco to Lisbon, returning Tue, 20 Jan., priced at AU$897 found 2 days ago
TAP Portugal
Wed, 1 Oct. - Tue, 14 Oct.
SFO
San Francisco
LIS
Lisbon
AU$928 Return, found 2 days ago
AU$928
Return
found 2 days ago
Select TAP Portugal flight, departing Wed, 1 Oct. from San Francisco to Lisbon, returning Tue, 14 Oct., priced at AU$928 found 2 days ago
Virgin Atlantic
Tue, 3 Feb. - Sun, 15 Feb.
SFO
San Francisco
LIS
Lisbon
AU$973 Return, found 2 days ago
AU$973
Return
found 2 days ago
Select Virgin Atlantic flight, departing Tue, 3 Feb. from San Francisco to Lisbon, returning Sun, 15 Feb., priced at AU$973 found 2 days ago
Air Canada
Wed, 11 Feb. - Sun, 22 Feb.
SFO
San Francisco
LIS
Lisbon
AU$985 Return, found 2 days ago
AU$985
Return
found 2 days ago
Select Air Canada flight, departing Wed, 11 Feb. from San Francisco to Lisbon, returning Sun, 22 Feb., priced at AU$985 found 2 days ago

Find the cheapest month to fly from San Francisco (SFO) to Lisbon (LIS)

February is typically the cheapest month to fly

From AU$755 - AU$1,545 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.