ORD to OPO from $363 in economy – flightdeals.net

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American Airlines

AAAmerican Airlines

Finnair

British Airways

BABritish Airways

Iberia Airlines

IBIberia Airlines

One Way•Economy

O'Hare International Airport

Chicago, United States

Francisco Sá Carneiro Airport

Porto, Portugal

$499 USD

-27%$363 USD

Verified 1 day ago

September 2026

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31 1$815 2$815 3$882 4$882 5$523 6$466 7$466 8$466 9$466 10$523 11$536 12$523 13$466 14$466 15$466 16$466 17$513 18$513 19$513 20$466 21$466 22$466 23$466 24$513 25$513 26$513 27$466 28$466 29$466 30$466 1$513 2$513 3$513 4$466

Rare Availability

7% of dates checked are available within 10% of the lowest price

Wednesday, September 2nd, 2026

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