Cheap flights from Chicago, IL to Porto, Portugal

Travelers frequently search for route combinations, such as Chicago and London, Manchester, Athens, Dublin, New York, Las Vegas, Vilnius, Los Angeles, Denver, Orlando, Minneapolis, Barcelona, Austin, Edinburgh, San Francisco, Paris, Nashville, Atlanta, Glasgow, Riga.

Travelers frequently search for route combinations, such as Porto and London, Manchester, Dublin, Edinburgh, Birmingham, Tallinn, Reykjavik, Athens, Glasgow, Bristol, Thessaloniki, Liverpool, Newcastle upon Tyne, Saint Helier, Toronto, Malta, Montreal, Budapest, Nottingham, Vancouver.

Chicago is mainly served by O Hare International. But there are other airports nearby, including Chicago Midway International, Chicago Rockford International.

The main airport in Chicago is O Hare International. It is also served by General Mitchell International, Gerald R. Ford International, Dane County Regional, General Wayne A. Downing Peoria International, Fort Wayne International, South Bend International, Quad City International, Muskegon County, Central Illinois Regional, University of Illinois Willard.

The main airport in Porto is Porto. It is also served by Porto, Santiago de Compostela, A Coruña, Vigo–Peinador, Vila Real.

Yes, it's possible to combine different modes of transport between Chicago and Porto thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Chicago and Porto can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Chicago and Porto with Spirit Airlines, TAP Portugal, easyJet, Frontier Airlines, Transavia.

If you don’t have specific dates for your trip between Chicago and Porto, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.