Chicago (ORD) to Lisbon (LIS) flight deal from $461 USD in economy class

AYFinnair

Round Trip•Economy

ORD

O'Hare International Airport

Chicago, United States

LIS

Portela Airport

Lisbon, Portugal

$1,054 USD

-56%$461 USD

Verified Oct 16, 2025 at 11:18 PM

October 2025

Today

Mon

Tue

Wed

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29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16$1,821 17$993 18$1,100 19$903 20$853 21$818 22$603 23$718 24$818 25$2,489 26$461 27$461 28$461 29$776 30$561 31$898 1$1,138 2$1,025

Extremely Rare Availability

3% of dates checked are available within 10% of the lowest price

Thursday, October 16th, 2025

10 round-trip options

Returning

Tue, Oct 21, 2025•5 Day Trip

$2,930 USD

Google Flights

Returning

Wed, Oct 22, 2025•6 Day Trip

$2,114 USD

Google Flights

Returning

Thu, Oct 23, 2025•7 Day Trip

$2,589 USD

Google Flights

Returning

Fri, Oct 24, 2025•8 Day Trip

$1,821 USD

Google Flights

Returning

Sat, Oct 25, 2025•9 Day Trip

$3,103 USD

Google Flights

Returning

Sun, Oct 26, 2025•10 Day Trip

$4,305 USD

Google Flights

Returning

Mon, Oct 27, 2025•11 Day Trip

$3,184 USD

Google Flights

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Tue, Oct 28, 2025•12 Day Trip

$3,118 USD

Google Flights

Returning

Wed, Oct 29, 2025•13 Day Trip

$1,995 USD

Google Flights

Returning

Thu, Oct 30, 2025•14 Day Trip

$1,851 USD

Google Flights