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Cheap flights from Chicago (CHI) to Porto (OPO)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Chicago (CHI) to Porto (OPO)

How to find the cheapest flight from Chicago (CHI) to Porto (OPO)
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How to find the cheapest flight from Chicago (CHI) to Porto (OPO)
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How to find the cheapest flight from Chicago (CHI) to Porto (OPO)
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Cheap flights from Chicago to Porto in March , April 2025

31 Mar - 08 Apr $ 505.00
CHI
Chicago
Swiss International Air Lines
1 STOPS
OPO
Porto
OPO
Porto
Swiss International Air Lines
1 STOPS
CHI
Chicago
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16 Mar - 03 Apr $ 2,578.00
CHI
Chicago
Finnair
1 STOPS
OPO
Porto
OPO
Porto
Finnair
1 STOPS
CHI
Chicago
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16 Mar - 09 Apr $ 3,325.00
CHI
Chicago
Iberia Airlines
1 STOPS
OPO
Porto
OPO
Porto
Iberia Airlines
1 STOPS
CHI
Chicago
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Last minute flights from Chicago to Porto

25 Mar - 01 Apr $ 516.00
CHI
Chicago
Austrian Airlines
1 STOPS
OPO
Porto
OPO
Porto
Austrian Airlines
1 STOPS
CHI
Chicago
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24 Mar - 01 Apr $ 516.00
CHI
Chicago
Austrian Airlines
1 STOPS
OPO
Porto
OPO
Porto
Austrian Airlines
1 STOPS
CHI
Chicago
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24 Mar - 01 Apr $ 543.00
CHI
Chicago
Austrian Airlines
1 STOPS
OPO
Porto
OPO
Porto
Austrian Airlines
1 STOPS
CHI
Chicago
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One-way flights to Porto from Chicago

5:22 PM - 3:25 PM
Transavia France
2 Stops
17h 23m
CHI - OPO
$ 334
Kiwi
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11:44 AM - 9:10 AM
TAP Portugal
2 Stops
41h 26m
CHI - OPO
$ 1,615
Kiwi
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9:25 PM - 12:00 PM
TAP Portugal
1 Stops
10h 35m
CHI - OPO
$ 1,666
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Porto (OPO)

Related info for your journey
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How to find the cheapest flight from Chicago (CHI) to Porto (OPO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Porto (OPO)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.