Open interactive map →Cheap flights from Denver to Chicago
Planning a trip from Denver to Chicago? Current fares start at €64 - a solid entry point for a flight to United States. Several airlines compete on this route, which helps keep fares relatively stable. The cheapest fare is non-stop, so no connection time to factor into your schedule. Use the price calendar to identify your cheapest month, then click through to compare live seat availability.
Price patterns on the Denver to Chicago route tend to spike during school holidays and public holiday weekends. Booking 4-6 weeks out generally balances availability and price well on this route. If your travel dates are flexible, check the price calendar for the lowest-priced months before searching for specific flights.
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Cheapest month to fly
- October 2026€64DirectCheapest
Based on tracked fares, October is the cheapest month to fly this route at around €64.
Prices last updated: September 2026
Entry requirements for United States
EU passportESTA required (visa-waiver)
US passportN/A (domestic)
Requirements vary by nationality and change without notice. Check requirements for your nationality →
About Chicago
Chicago is the great American city that the coasts overlook - a dense, architecturally extraordinary lakefront city with world-class museums, deep-dish pizza, and jazz and blues venues that trace the music's northern migration. O'Hare (ORD) and Midway (MDW) together give the city one of the world's widest airport choices.
Alternative routes
Other ways to reach Chicago
Frequently asked questions
How much does a flight from Denver to Chicago cost?
The cheapest fare currently available from Denver to Chicago is €64. Prices on this route vary by season, day of week, and how far in advance you book. The month-by-month price calendar on this page shows exactly when fares are highest and lowest, so you can pick the most cost-effective window before searching for specific dates. Fares are refreshed regularly as our flight partners publish new availability.
Are there direct flights from Denver to Chicago?
Yes - non-stop flights are currently available from Denver to Chicago. The cheapest direct fare starts at €64, making it a convenient option if you want to avoid layover time. Direct flights are generally quicker and less stressful, especially for shorter trips to United States. Click through to the booking site to check live availability and schedules for your dates.
When is the cheapest time to fly from Denver to Chicago?
Prices on this route typically dip during shoulder-season months, away from school holidays and public holiday windows. Mid-week departures - particularly Tuesday to Thursday - tend to be cheaper than flights on Fridays and Sundays from Denver. The month-by-month price calendar above is the fastest way to identify the cheapest window - look for the months with the lowest fares before committing to travel dates. Booking 3-6 weeks in advance generally offers the best balance of price and seat availability on this route.