Cheap flights from Chicago to Porto from $327

Travelers frequently search for route combinations, such as Chicago and Mexico City, Guadalajara, Morelia, New York, León, Orlando, Las Vegas, Dallas, Houston, Tampa, Los Angeles, Miami, Phoenix, Denver, Monterrey, Cancún, Istanbul, Puerto Vallarta, Atlanta, Calgary.

Travelers frequently search for route combinations, such as Porto and New York, Boston, Los Angeles, Miami, Washington, D.C., Minneapolis, San Francisco, Detroit, San Diego, Atlanta, Louisville, Orlando, Sarasota, Madrid, Barcelona, Paris, Bilbao, Lisbon, Ponta Delgada, Tel Aviv.

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 Gerald R. Ford International, South Bend International, Dane County Regional, Fort Wayne International, General Mitchell International, Quad City International, General Wayne A. Downing Peoria 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, Vigo–Peinador, A Coruña, Vila Real.

Currently, you can fly between Chicago and Porto with Ryanair, Swiss International Air Lines, Aer Lingus, Frontier Airlines, TAP Portugal.

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.

Traveling between Chicago and Porto, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.

There are a number of airports in and around Chicago. The main one is O Hare International and other nearby airports include Gerald R. Ford International, South Bend International, Dane County Regional, Fort Wayne International, General Mitchell International, Quad City International, General Wayne A. Downing Peoria International, Muskegon County, Central Illinois Regional, University of Illinois Willard