Frontier Airlines flights to Chicago

The best Frontier Airlines flight deals to Chicago

Looking for a last minute deal or the best direct flight? Find the biggest savings on one-way and return trips to Chicago with Frontier Airlines.

Find the cheapest time to fly to Chicago with Frontier Airlines

Flexible on travel dates? Here's when fares are lowest.

Find which Chicago airports Frontier Airlines flies to

We were able to find fares for the following Chicago airports. Find the one that works for you.

Flying to Chicago with Frontier Airlines: FAQs

The average Frontier Airlines flight time from Ireland to Chicago is 8 hours and 21 minutes.
At the moment, Aer Lingus, American Airlines, British Airways, Alaska Airlines and United all fly to Chicago too.
Frontier Airlines currently also flies to Denver International, Las Vegas Harry Reid International and Orlando International.