Denver to Chicago flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Denver to Chicago is €49 with Frontier Airlines (checked on 6 Nov 2026).
Your next trip, last seen at €49
Lowest observedFrontier Airlines · Non-stop · One wayWhen to fly
Explore datesMore dates worth a look
Last seen for 1 traveller on 6 Nov 2026. Check today's price.
Find the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- 1 Dec€66
- 2 Dec€66
- 3 Dec€66
- 4 Dec€66
- 5 Dec€49
- 7 Dec€66
- 8 Dec€49
- 9 Dec€49
- 10 Dec€66
- 11 Dec€66
- 12 Dec€49
- 14 Dec€66
- 15 Dec€72
- 16 Dec€49
- 17 Dec€66
- 18 Dec€66
- 19 Dec€67
- 21 Dec€71
- 22 Dec€72
- 23 Dec€96
- 24 Dec€71
- 25 Dec€71
- 30 Dec€71
- 31 Dec€71
- Lowest observed
- €49, departing 5 Dec 2026 (Last checked: 6 Nov 2026)One-way fare · Priced departure days checked in the last 14 days: 89Check live prices for this route
- Round trip
- €172, departing 30 Dec 2026, back 2 Jan 2027 (Last checked: 5 Nov 2026)
- Non-stop, one way
- €49, departing 16 Dec 2026 (Last checked: 6 Nov 2026)
- Airlines seen
- American Airlines, Frontier Airlines, United Airlines, Delta Air Lines
- Fastest observed flight time
- 2h 25m
- Non-stop
- Yes
About this route
Explore the fares we observed from Denver to Chicago. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,477 km
- Fastest observed flight time
- 2h 25m
- Airlines seen
- American Airlines, Frontier Airlines, United Airlines, Delta Air Lines
- Alternative airports
- APA, CGX, DPA, MDW, PWK, RFD
Route-level information; individual journeys vary.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days |
|---|---|
| Frontier Airlines | 78 / 89 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Denver International Airport (DEN) → Denver, city gazetteer reference point (39.7392, -104.9847): ≈ 30 km.
- Chicago Midway International Airport (MDW) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 14 km.
- Chicago O'Hare International Airport (ORD) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 25 km.
- Chicago Rockford International Airport (RFD) → Chicago, city gazetteer reference point (41.8781, -87.6298): ≈ 126 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Denver to Chicago: December 2026, from €49 (checked 6 Nov 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| November 2026 | €76 | 11 |
| December 2026 | €49 | 24 |
| January 2027 | €65 | 27 |
| February 2027 | €67 | 24 |
| March 2027 | €66 | 3 |
Lowest fare by day of the week
Cheapest day of the week from Denver to Chicago: Tuesday, from €49 (checked 6 Nov 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €66 | 12 |
| Tuesday | €49 | 15 |
| Wednesday | €49 | 16 |
| Thursday | €66 | 16 |
| Friday | €66 | 13 |
| Saturday | €49 | 12 |
| Sunday | €94 | 5 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Denver to Chicago by days until departure (8 to 30 days): €49 (checked 6 Nov 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €102 | 8 |
| 8 to 30 days | €49 | 12 |
| 31 to 60 days | €49 | 21 |
| 61 days or more | €65 | 48 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Denver to Chicago?
The lowest fare Routavio has observed is €49, found on 6 Nov 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Denver to Chicago?
Cheapest month from Denver to Chicago: December 2026, from €49 (checked 6 Nov 2026).
Are there direct flights from Denver to Chicago?
Yes. Published schedules report non-stop flights on this route with American Airlines, Frontier Airlines, United Airlines, Spirit Airlines, Southwest Airlines.
Which airlines fly from Denver to Chicago?
Routavio has seen these carriers on the route: American Airlines, Frontier Airlines, United Airlines, Delta Air Lines.
How long does the flight from Denver to Chicago take?
Across the 78 fares Routavio observed, the average journey time is 2h 28m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Denver to Chicago fares were non-stop?
79 of the 84 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
How much is a round trip from Denver to Chicago?
Cheapest round trip: €172, departing 30 Dec 2026, back 2 Jan 2027 (checked 5 Nov 2026).
How much is a non-stop flight from Denver to Chicago?
Cheapest non-stop one-way fare: €49, departing 16 Dec 2026 (checked 6 Nov 2026).
Which airlines had non-stop offers on at least 3 departure dates from Denver to Chicago?
For Denver to Chicago, examples of observed one-way non-stop offers checked within the last 14 days: Frontier Airlines (78). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which day of the week is cheapest from Denver to Chicago?
Cheapest day of the week from Denver to Chicago: Tuesday, from €49 (checked 6 Nov 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.