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Find cheap flights from Colorado to Chicago O'Hare Airport from $39

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to O'Hare Intl departing on 6/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 5/27
Mon 6/3

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In the last 7 days travelers have searched 43,623,357 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

June

Cheapest flight

$39
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 25% increase in price.
Flight from Denver to Chicago O'Hare Airport

FAQs for booking Colorado to Chicago O'Hare Airport flights

  • How does KAYAK find such low prices on flights from Colorado to Chicago O'Hare Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago O'Hare Airport with an airline and back to Colorado with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Chicago O'Hare Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago O'Hare Airport from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Colorado to Chicago O'Hare Airport?

Find which airlines fly direct from Colorado to O'Hare Intl, which days they fly and book direct flights.

Nonstop departures

Colorado to Chicago O'Hare Intl

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

See more direct flights

Nonstop returns

Chicago O'Hare Intl to Colorado

Monday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

Wednesday

ANA, Aer Lingus, Aeromexico, +77 more

ANA, Aer Lingus, +78 more

Thursday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +78 more

ANA, Aer Lingus, +79 more

Saturday

ANA, Aer Lingus, Aeromexico, +76 more

ANA, Aer Lingus, +77 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +76 more

ANA, Aer Lingus, +77 more

See more direct flights
See more direct flights

Book cheap flights from Colorado to Chicago

Recent round-trip flight deals

6/5Wed
nonstopFrontier
2h 38mDEN-ORD
6/15Sat
nonstopFrontier
2h 57mORD-DEN
$59
5/7Tue
nonstopFrontier
2h 29mDEN-ORD
5/11Sat
nonstopFrontier
2h 55mORD-DEN
$61
6/12Wed
nonstop
2h 38mDEN-ORD
6/16Sun
1 stop
14h 11mORD-DEN
$92
6/7Fri
1 stop
8h 08mDEN-ORD
6/12Wed
nonstop
2h 59mORD-DEN
$105
6/19Wed
nonstopUnited Airlines
2h 35mDEN-ORD
6/23Sun
nonstopUnited Airlines
2h 38mORD-DEN
$154
5/23Thu
1 stopSun Country Air
6h 38mDEN-ORD
5/27Mon
1 stopSun Country Air
14h 00mORD-DEN
$189
5/25Sat
1 stopDelta
4h 33mDEN-ORD
5/28Tue
1 stopDelta
5h 29mORD-DEN
$196
5/10Fri
1 stopDelta
6h 50mDEN-ORD
5/14Tue
1 stopDelta
8h 08mORD-DEN
$198
5/26Sun
1 stopSun Country Air
24h 33mDEN-ORD
5/31Fri
1 stopSun Country Air
21h 25mORD-DEN
$199
8/30Fri
nonstopUnited Airlines
2h 34mDEN-ORD
9/2Mon
nonstopUnited Airlines
2h 38mORD-DEN
$201

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Recent one-way flight deals

6/8Sat
nonstopFrontier
2h 38mDEN-ORD
$39
6/15Sat
nonstopFrontier
2h 38mDEN-ORD
$40
6/7Fri
1 stopSun Country Air
8h 08mDEN-ORD
$58
5/30Thu
nonstopUnited Airlines
2h 35mDEN-ORD
$65
5/28Tue
nonstopUnited Airlines
2h 35mDEN-ORD
$76
5/25Sat
1 stopSun Country Air
23h 58mDEN-ORD
$85
5/10Fri
2 stops
24h 43mDEN-ORD
$91
5/26Sun
1 stopDelta
4h 07mDEN-ORD
$98
8/9Fri
1 stopDelta
6h 21mCOS-ORD
$103
5/24Fri
2 stops
22h 30mDEN-ORD
$106

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Last minute flights from Colorado to O'Hare Intl

Last minute flight, train and bus deals

5/1Wed
nonstopFrontier
2h 29mDEN-ORD
5/8Wed
nonstopFrontier
2h 55mORD-DEN
$117
5/1Wed
nonstopFrontier
2h 29mDEN-ORD
5/8Wed
nonstopFrontier
2h 55mORD-DEN
$118
4/29Mon
nonstop
2h 29mDEN-ORD
5/3Fri
multi-stop
15h 35mORD-DEN
$148
4/30Tue
multi-stop
8h 57mDEN-ORD
5/3Fri
multi-stop
15h 35mORD-DEN
$203
4/29Mon
multi-stopDelta
6h 34mDEN-ORD
5/4Sat
multi-stopDelta
5h 10mORD-DEN
$269
4/29Mon
multi-stopDelta
5h 45mDEN-ORD
5/1Wed
multi-stopDelta
5h 06mORD-DEN
$290
4/30Tue
nonstopUnited Airlines
2h 32mDEN-ORD
4/30Tue
nonstopUnited Airlines
2h 48mORD-DEN
$311
4/29Mon
nonstopSouthwest
2h 25mDEN-ORD
5/2Thu
nonstopSouthwest
2h 50mORD-DEN
$325
4/29Mon
multi-stopSouthwest
10h 25mDEN-ORD
5/2Thu
nonstopSouthwest
2h 45mORD-DEN
$334
5/2Thu
nonstopUnited Airlines
2h 30mDEN-ORD
5/5Sun
nonstopUnited Airlines
2h 42mORD-DEN
$345

Search by stops

Search by airline

Search by price