Frontier Airlines flights to Chicago

Travelers and cabin class

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 round-trip flights to Chicago with Frontier Airlines.

Find the cheapest time to fly to Chicago with Frontier Airlines

Flexible on travel dates? Here's when plane tickets are cheapest.

Find which Chicago airports Frontier Airlines flies to

Compare routes to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier.

Flying to Chicago with Frontier Airlines

The things to know before you go.
Cheapest flight found$2,061
Cheapest month to flyJune

Flying to Chicago with Frontier Airlines: FAQs

The average Frontier Airlines flight time from Mexico to Chicago is 4 hours and 2 minutes.
At the moment, American Airlines, Frontier Airlines, Volaris, United and WestJet all fly to Chicago too.
Frontier Airlines currently also flies to Orlando International, Denver International and Atlanta Hartsfield-Jackson.
Although it's difficult to get an accurate idea of when Frontier Airlines flights to Chicago are cheapest, the lowest fares are currently for departures in October.