Cheap flights from Chicago to Serra da Estrela

View AU$515 flight on Sun, 27 Jul. 2025Opens in a new window

Popular airlines from Chicago to Serra da Estrela

  • American Airlines

    American Airlines

  • Air Canada

    Air Canada

  • British Airways

    British Airways

  • Lufthansa

    Lufthansa

  • Swiss International Air Lines

    Swiss International Air Lines

  • United

    United

  • SAS

    SAS

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Cheap Flights from Chicago (CHI) 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
Thu, 22 Jan. - Wed, 28 Jan.
ORD
Chicago
LIS
Lisbon
AU$707 Return, found 1 day ago
AU$707
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, 22 Jan. from Chicago to Lisbon, returning Wed, 28 Jan., priced at AU$707 found 1 day ago
United
Tue, 19 Aug. - Thu, 28 Aug.
ORD
Chicago
OPO
Porto
AU$874 Return, found 6 days ago
AU$874
Return
found 6 days ago
Select United flight, departing Tue, 19 Aug. from Chicago to Porto, returning Thu, 28 Aug., priced at AU$874 found 6 days ago
Swiss International Air Lines
Thu, 22 Jan. - Wed, 28 Jan.
ORD
Chicago
LIS
Lisbon
AU$894 Return, found 1 day ago
AU$894
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Thu, 22 Jan. from Chicago to Lisbon, returning Wed, 28 Jan., priced at AU$894 found 1 day ago
Air Canada
Thu, 22 Jan. - Wed, 28 Jan.
ORD
Chicago
LIS
Lisbon
AU$906 Return, found 1 day ago
AU$906
Return
found 1 day ago
Select Air Canada flight, departing Thu, 22 Jan. from Chicago to Lisbon, returning Wed, 28 Jan., priced at AU$906 found 1 day ago
Lufthansa
Thu, 22 Jan. - Wed, 28 Jan.
ORD
Chicago
LIS
Lisbon
AU$907 Return, found 1 day ago
AU$907
Return
found 1 day ago
Select Lufthansa flight, departing Thu, 22 Jan. from Chicago to Lisbon, returning Wed, 28 Jan., priced at AU$907 found 1 day ago
Virgin Atlantic
Thu, 22 Jan. - Wed, 28 Jan.
ORD
Chicago
LIS
Lisbon
AU$1,034 Return, found 1 day ago
AU$1,034
Return
found 1 day ago
Select Virgin Atlantic flight, departing Thu, 22 Jan. from Chicago to Lisbon, returning Wed, 28 Jan., priced at AU$1,034 found 1 day ago

Find the cheapest month to fly from Chicago (CHI) to Lisbon (LIS)

November is typically the cheapest month to fly

From AU$689 - AU$1,496 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.