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Find the Cheapest Flights from O'Hare International Airport to Portugal

Unlock the cheapest flights and the best airfares from O'Hare International Airport to Portugal. Make your dream trip both memorable and affordable!

Airline JetBlue Airways icon
Wed, Sep 16CHI-FLW
JetBlue Airways
oneway$446
Airline Air Serbia icon
Sun, Sep 6CHI-OPO
Air Serbia
oneway$477
Airline Spirit Airlines icon
Fri, May 22CHI-LIS
Spirit Airlines
oneway$585
Airline Turkish Airlines icon
Wed, Oct 14CHI-OPO
Turkish Airlines
$625

O'Hare International Airport to Portugal: Flight information

Cheapest flight found$446
Cheapest month to flySeptember
Most popular airlineJetBlue Airways
Average flight duration16h 5m

Cheapest flight found

May 2026

$585

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