Cheap flights from Illinois to Denver

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In 1861, the Colorado Territory and Arapaho County were formed.  In this same year, Denver City was made an official city and finally became the Arapaho County seat.  Four years later, Denver City was made the capital of the Colorado Territory and on August 1, 1876 the city was named the state capital when Colorado was accepted as a state in the union.  The name Denver City was shortened to Denver during this time.  ... (read more in our Denver History)

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Chicago 
Moline 

Check our newest flight offers to Denver:

  • $88Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Denver, CO (DEN)02/10/201808:15 pm
    Denver, CO (DEN)Chicago, IL (ORD)02/22/201808:02 pm
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  • $92Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Denver, CO (DEN)02/10/201808:15 pm
    Denver, CO (DEN)Chicago, IL (ORD)02/22/201808:02 pm
    flightnetwork.com check price
  • $93Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Denver, CO (DEN)02/10/201812:05 pm
    Denver, CO (DEN)Chicago, IL (ORD)02/22/201808:02 pm
    flyfar.ca check price
  • $245United Airlines flight United Airlines 
    FromToDepartureTime
    Peoria, IL (PIA)Denver, CO (DEN)02/03/201801:45 pm
    Denver, CO (DEN)Peoria, IL (PIA)02/10/201807:50 am
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  • $464United Airlines flight United Airlines 
    FromToDepartureTime
    Moline, IL (MLI)Denver, CO (DEN)03/14/201811:00 am
    Denver, CO (DEN)Moline, IL (MLI)03/27/201802:15 pm
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