Cheap flights from Denver to Chicago
Cheap return flights from Denver to Chicago
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Chicago flight facts
What you need to know
What are the cheapest airlines?
- Spirit Airlines
- Frontier Airlines
- United Airlines
These airlines usually offer the cheapest flights from Denver to Chicago.
What airlines fly indirectly?
- American Airlines
- Delta Airlines
- Southwest Airlines
These airlines fly from Denver to Chicago, but you’ll have at least one layover.
How long is the flight?
2 hours 15 minutes
This is the shortest flight time from Denver to Chicago.
Alternative flights from the UK to Chicago
Check out prices for other routes
Alternative flights from Denver
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Denver/Chicago route. There are around 35 flights on any given week from the UK to Chicago and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from Denver to Chicago
Tips and advice from our flight experts
You've searched for flights from Denver to Chicago. We've found 25 flights and compared them to give you the best offer. Spirit Airlines is, on average, the cheapest for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for the route from Denver to Chicago on 08/02/2026 at 21:20 for £90.
We've scanned hundreds of airfares from various airlines across the globe. In total, we've found 6 airlines that operate the 1,000 km flight from Denver to Chicago.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Spirit Airlines is a popular low-cost option for this route, with an average flight duration of 2 hours 15 minutes. After selecting an offer, fill out your information, complete the payment, and consider booking a hotel with us or using our flight + hotel service to save time and money.
Other popular destinations near Chicago
Where other people are flying to
