Journey information
Overview: Chicago, IL to Denver, CO flight
Flights from Chicago, IL to Denver, CO depart on average 55 times per day, taking around 3h 13m. Cheap flight tickets for this journey start at $33 (€26) if you book in advance.
There are 10 flights per day. The earliest flight runs at 00:01, the last at 23:58. The fastest flight covers the 916 miles (1475 km) distance in 2h 45m. June is the cheapest month to fly.
Distance 916 miles (1475 km) |
Average flight duration 3h 13m |
Cheapest ticket price $33 (€26) |
Flights per day 55 |
Direct flights 10 |
Fastest flight 2h 45m |
Cheapest month June |
First flight 00:01 |
Last flight 23:58 |
The cheapest and fastest flights from Chicago, IL to Denver, CO
Cheapest price
$189
Average price
$705
Fastest journey
2 h 50 m
Average duration
2 h 51 m
Flights per day
97
Distance
1475 km
The best way to find a cheap flight ticket from Chicago, IL to Denver, CO is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Chicago, IL to Denver, CO will cost around $705 if you buy it on the day, but the cheapest tickets can be found for only $189.
Of the 97 flights that leave Chicago, IL for Denver, CO onSun, Mar 01, 17 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Sun, Mar 01 the direct flights cover the 1475 km distance in an average of 2 h 51 m but if you time it right, some flights will get you there in just 2 h 50 m .
On Sun, Mar 01 the longest flights will take 2 h 52 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
F93800 · F93803
F93142 · F92369
F91829 · F91820
F91483
F93044 · F91733
AA3111
AA2833
AA2514
UA329
AA1387Travel Information
Compare train, bus, and flight for Chicago, IL to Denver, CO
Omio recommends booking the train as it is the most popular option from Chicago, IL to Denver, CO among Omio's users. If you are prioritising price take the bus with prices starting from $70. For those with little time consider booking a flight which can get you there in 3h 13m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.4 - 1.3kg. The ticket price range depends on the travel mode: a bus costs an average of $70, and a flight costs an average of $33.
Distance: 916 miles (1475 km)
Compare flight with
| Flight | Most popular Train | Bus |
|---|---|---|
$250 Average price | $240 Average price | $164 Average price Cheapest |
6h 13m Average total duration Fastest 3h 13m Onboard + 3h 0m Additional time* | 19h 18m Average total duration 18h 48m Onboard + 30m Additional time* | 22h 42m Average total duration 22h 12m Onboard + 30m Additional time* |
4.4 - 8.8kg CO2 emissions | 0.4 - 1.3kg CO2 emissions Lowest | 1.5 - 3.7kg CO2 emissions |
![]() Most popular airline | ![]() Most popular train company | ![]() Most popular bus company |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Live departures
Chicago, IL to Denver, CO flight times
The table below shows live departures for Chicago, IL to Denver, CO flights for today, Saturday, February 28. You can also manually refresh the results below to see updated flight journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
UA4448 · UA2645 | 3:00 PM O'Hare International Airport | 8h31 | 11:31 PM Denver International Airport | 1 transfer | |
UA528 · UA248 | 3:00 PM O'Hare International Airport | 6h55 | 9:55 PM Denver International Airport | 1 transfer | |
UA1061 · UA785 | 3:05 PM O'Hare International Airport | 6h21 | 9:26 PM Denver International Airport | 1 transfer | |
F93800 · F93803 | 3:30 PM O'Hare International Airport | 13h19 | 4:49 AM Denver International Airport | 1 transfer | |
AA3982 | 3:44 PM O'Hare International Airport | 2h57 | 6:41 PM Denver International Airport | 0 transfersDirect | |
UA3546 · UA2645 | 4:31 PM O'Hare International Airport | 7h00 | 11:31 PM Denver International Airport | 1 transfer | |
UA1803 | 4:35 PM O'Hare International Airport | 2h58 | 7:33 PM Denver International Airport | 0 transfersDirect | |
UA1831 · UA235 | 4:35 PM O'Hare International Airport | 8h32 | 1:07 AM Denver International Airport | 1 transfer | |
UA2638 · UA1246 | 4:35 PM O'Hare International Airport | 6h58 | 11:33 PM Denver International Airport | 1 transfer | |
UA2653 · UA2288 | 4:42 PM O'Hare International Airport | 8h36 | 1:18 AM Denver International Airport | 1 transfer | |
UA4491 · UA1236 | 4:50 PM O'Hare International Airport | 8h14 | 1:04 AM Denver International Airport | 1 transfer | |
UA1719 · UA1389 | 4:50 PM O'Hare International Airport | 7h05 | 11:55 PM Denver International Airport | 1 transfer | |
UA5557 · UA2644 | 4:50 PM O'Hare International Airport | 6h55 | 11:45 PM Denver International Airport | 1 transfer | |
UA3704 · UA479 | 4:50 PM O'Hare International Airport | 6h47 | 11:37 PM Denver International Airport | 1 transfer | |
UA2182 · UA2093 | 5:15 PM O'Hare International Airport | 7h52 | 1:07 AM Denver International Airport | 1 transfer | |
UA5234 · UA2132 | 5:30 PM O'Hare International Airport | 7h30 | 1:00 AM Denver International Airport | 1 transfer | |
AA737 | 5:46 PM O'Hare International Airport | 2h52 | 8:38 PM Denver International Airport | 0 transfersDirect | |
F92672 · F91279 | 5:48 PM O'Hare International Airport | 22h43 | 4:31 PM Denver International Airport | 1 transfer | |
UA4169 · UA778 | 6:40 PM O'Hare International Airport | 6h26 | 1:06 AM Denver International Airport | 1 transfer | |
UA3562 · UA2644 | 6:45 PM O'Hare International Airport | 5h00 | 11:45 PM Denver International Airport | 1 transfer | |
UA2657 · UA270 | 6:45 PM O'Hare International Airport | 6h31 | 1:16 AM Denver International Airport | 1 transfer | |
UA622 · UA2447 | 6:45 PM O'Hare International Airport | 6h32 | 1:17 AM Denver International Airport | 1 transfer | |
UA2657 · UA1654 | 6:45 PM O'Hare International Airport | 8h09 | 2:54 AM Denver International Airport | 1 transfer | |
UA2616 | 6:50 PM O'Hare International Airport | 2h58 | 9:48 PM Denver International Airport | 0 transfersDirect | |
UA2290 · UA2655 | 6:50 PM O'Hare International Airport | 6h12 | 1:02 AM Denver International Airport | 1 transfer | |
UA467 · UA2272 | 6:57 PM O'Hare International Airport | 6h15 | 1:12 AM Denver International Airport | 1 transfer | |
UA1830 · UA5277 | 7:00 PM O'Hare International Airport | 6h25 | 1:25 AM Denver International Airport | 1 transfer | |
UA4494 · UA1236 | 7:00 PM O'Hare International Airport | 6h04 | 1:04 AM Denver International Airport | 1 transfer | |
UA5933 · UA2132 | 7:00 PM O'Hare International Airport | 6h00 | 1:00 AM Denver International Airport | 1 transfer | |
UA1960 · UA1654 | 8:00 PM O'Hare International Airport | 6h54 | 2:54 AM Denver International Airport | 1 transfer | |
UA1883 | 8:02 PM O'Hare International Airport | 2h55 | 10:57 PM Denver International Airport | 0 transfersDirect | |
UA5668 · UA2132 | 8:15 PM O'Hare International Airport | 4h45 | 1:00 AM Denver International Airport | 1 transfer | |
UA2298 · UA2272 | 8:15 PM O'Hare International Airport | 4h57 | 1:12 AM Denver International Airport | 1 transfer | |
UA2347 | 8:40 PM O'Hare International Airport | 2h56 | 11:36 PM Denver International Airport | 0 transfersDirect | |
UA5103 · UA5085 | 9:45 PM O'Hare International Airport | 4h45 | 2:30 AM Denver International Airport | 1 transfer | |
UA5021 · UA6057 | 9:50 PM O'Hare International Airport | 4h50 | 2:40 AM Denver International Airport | 1 transfer | |
UA714 · UA2339 | 10:00 PM O'Hare International Airport | 7h10 | 5:10 AM Denver International Airport | 1 transfer | |
UA2649 | 10:05 PM O'Hare International Airport | 2h58 | 1:03 AM Denver International Airport | 0 transfersDirect | |
UA2494 | 11:50 PM O'Hare International Airport | 2h58 | 2:48 AM Denver International Airport | 0 transfersDirect | |
| Sunday, March 1 | |||||
AA3111 | 1:00 AM O'Hare International Airport | 2h50 | 3:50 AM Denver International Airport | 0 transfersDirect | |
UA767 | 2:07 AM O'Hare International Airport | 2h58 | 5:05 AM Denver International Airport | 0 transfersDirect | |
AA1387 | 2:45 AM O'Hare International Airport | 2h52 | 5:37 AM Denver International Airport | 0 transfersDirect | |
F93800 · F93803 | 12:30 PM O'Hare International Airport | 16h19 | 4:49 AM Denver International Airport | 1 transfer | |
AA3359 | 12:50 PM O'Hare International Airport | 2h57 | 3:47 PM Denver International Airport | 0 transfersDirect | |
AS587 · AS642 | 1:00 PM O'Hare International Airport | 17h59 | 6:59 AM Denver International Airport | 1 transfer | |
AS587 · AS602 | 1:00 PM O'Hare International Airport | 12h56 | 1:56 AM Denver International Airport | 1 transfer | |
AS587 · AS765 · AS3046 | 1:00 PM O'Hare International Airport | 17h59 | 6:59 AM Denver International Airport | 2 transfers | |
AS587 · AS621 · AS3046 | 1:00 PM O'Hare International Airport | 17h59 | 6:59 AM Denver International Airport | 2 transfers | |
F93135 · F93229 | 1:00 PM O'Hare International Airport | 26h20 | 3:20 PM Denver International Airport | 1 transfer | |
AS587 · AS786 | 1:00 PM O'Hare International Airport | 11h20 | 12:20 AM Denver International Airport | 1 transfer | |
AS587 · AS682 | 1:00 PM O'Hare International Airport | 30h14 | 7:14 PM Denver International Airport | 1 transfer | |
AS587 · AS697 · AS3046 | 1:00 PM O'Hare International Airport | 17h59 | 6:59 AM Denver International Airport | 2 transfers | |
F93135 · F93227 | 1:00 PM O'Hare International Airport | 12h44 | 1:44 AM Denver International Airport | 1 transfer | |
UA539 · UA2049 | 1:05 PM O'Hare International Airport | 6h14 | 7:19 PM Denver International Airport | 1 transfer | |
UA791 | 1:10 PM O'Hare International Airport | 2h53 | 4:03 PM Denver International Airport | 0 transfersDirect | |
F93044 · F93311 | 1:35 PM O'Hare International Airport | 16h24 | 5:59 AM Denver International Airport | 1 transfer | |
F93044 · F94919 | 1:35 PM O'Hare International Airport | 11h45 | 1:20 AM Denver International Airport | 1 transfer | |
F93044 · F91733 | 1:35 PM O'Hare International Airport | 25h20 | 2:55 PM Denver International Airport | 1 transfer | |
UA5540 · UA502 | 1:45 PM O'Hare International Airport | 5h52 | 7:37 PM Denver International Airport | 1 transfer | |
AS1470 · AS1492 | 2:20 PM O'Hare International Airport | 28h18 | 6:38 PM Denver International Airport | 1 transfer | |
AS1470 · AS3046 | 2:20 PM O'Hare International Airport | 16h39 | 6:59 AM Denver International Airport | 1 transfer | |
AS1470 · AS1429 | 2:20 PM O'Hare International Airport | 10h28 | 12:48 AM Denver International Airport | 1 transfer | |
AS1470 · AS685 · AS642 | 2:20 PM O'Hare International Airport | 16h39 | 6:59 AM Denver International Airport | 2 transfers | |
AS1470 · AS622 · AS642 | 2:20 PM O'Hare International Airport | 16h39 | 6:59 AM Denver International Airport | 2 transfers | |
F93243 · F92631 | 2:39 PM O'Hare International Airport | 7h12 | 9:51 PM Denver International Airport | 1 transfer | |
UA1049 | 2:40 PM O'Hare International Airport | 2h53 | 5:33 PM Denver International Airport | 0 transfersDirect | |
UA4778 · UA5462 | 2:45 PM O'Hare International Airport | 5h05 | 7:50 PM Denver International Airport | 1 transfer | |
UA1778 · UA1592 | 2:45 PM O'Hare International Airport | 6h56 | 9:41 PM Denver International Airport | 1 transfer | |
This is the last flight of the day. | |||||
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How far in advance should I book flight tickets from Chicago, IL to Denver, CO?
Compare prices and tickets Chicago, IL to Denver, CO by train, bus, or flight
Compare train, bus, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
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Why should you book Chicago, IL to Denver, CO flights with Omio?
Why book with Omio vs United?
- Compare with other providers: On Omio, you can not only buy tickets for United, but also compare tickets for the likes of Frontier Airlines or American Airlines to find the best option for your trip from Chicago, IL to Denver, CO.
- Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
- Compare all your options: Omio allows you to compare United with all available travel options, which are train, bus and flight to ensure you get the best deal for traveling from Chicago, IL to Denver, CO.
Why book with Omio over Kayak, Skyscanner or Trip?
- Compare with other providers: On Omio, you can also compare tickets for the likes of Frontier Airlines or American Airlines to find the best option for your trip from Chicago, IL to Denver, CO.
- Multiple modes of transport: Omio allows you to compare travel options including train, bus and flight to find the ideal travel option from Chicago, IL to Denver, CO.
Airlines: United, Frontier Airlines, American Airlines from Chicago, IL to Denver, COFind the best flights between Chicago, IL to Denver, CO with Omio's travel partners United, Frontier Airlines, American Airlines from $33 (€26). We can find you the best deals, schedules and tickets when comparing and booking the best trip.
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Frontier Airlines
FAQs: Chicago, IL to Denver, CO Flight
Find answers to the most common questions about traveling from Chicago, IL to Denver, CO by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Denver, CO, this guide helps you travel smarter and with confidence.

- Denver Arts Festival, a vibrant celebration of local artists and their work featuring exhibitions, live music, and food
- Great American Beer Festival, the largest beer festival in the U.S. showcasing thousands of craft beers from across the country
- Denver Film Festival, an annual event highlighting independent films and filmmakers with screenings, panels, and special events.
- Memorial Day, the unofficial start of summer with vibrant outdoor activities and events
- Independence Day, spectacular fireworks and lively celebrations throughout the city
- Labor Day, pleasant weather perfect for enjoying Denver's parks and festivals.
popular airports
Popular airports from Chicago, IL to Denver, CO
- Free Wi-Fi available throughout the airport.
- Shops are located in all terminals, including duty-free and brands like Hudson and MAC Cosmetics.
- Parking available with options including hourly, daily, and economy lots, approximately 2.85€ ($3) per hour.
- Restaurants are located in all terminals, offering a variety of cuisines including American and intertiol. Top options include Tortas Frontera and Publican Tavern.
- Available outside the terminal.
- Elevators, ramps, toilets
- Available throughout the airport.
- Hotels such as Hilton Chicago O'Hare are located on airport grounds, with others like the Hyatt Regency nearby.
- Showers are available in some lounges, such as the United Club, but access may require a fee or membership.
- Lounges available, including United Club and American Airlines Admirals Club.
- Lost and Found located in terminal 1, near the baggage claim area.
- Car rental services are available at the Multi-Modal Facility, with companies like Hertz and Avis.
- CTA Blue Line, O'Hare Station, 45 minutes to city center
- Free Wi-Fi available throughout the airport.
- Shops located in Jeppesen terminal and concourses, including Duty-Free and local brands.
- Parking available, approximately 4.7€ ($5) per hour, parkade adjacent to terminal.
- Various restaurants in Jeppesen terminal and concourses, including American and intertiol cuisine.
- Available outside the terminal.
- Elevators, ramps
- Available throughout the airport.
- Westin Hotel connected to the terminal.
- Showers available at the Westin Hotel, approximately $20.
- Multiple lounges available, including United Club and Delta Sky Club.
- Lost and Found located in Jeppesen terminal, Level 5.
- Car rental services available on airport property, shuttle service to rental car lots.
- A Line train, Denver Airport Station, 37 minutes to Union Station
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