Cheap flights from Chicago to United States

Travel > North America > United States

Travel tip: Visit Boston on your holidays!

Check our current prices for flights from Chicago to United States. Please note that we also give you historical search data for this city connection. These are all airfares that people found in the past, in order to find more current flight information from Chicago to United States, you will need to run a search below.

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From $116 / RT details

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Cheap Denver airfares from $116/RT are provided by Cheapoair.com. Outbound flight is leaving on 07/09/2025, 05:35 am from Chicago O`hare (ORD) airport and arrives at Denver International Airport (DEN) at 07:27 am. The flight time is 1 hours and 52 minutes. The Returning flight departes on 07/15/2025, 08:30 pm (other return dates are also available). Date posted: 14 Feb 2025

Price evolution for flights From Chicago To United States

Price overview for flights from Chicago to United States

Recent Deals on Flights from Chicago to United States:Roundtrip / Oneway

  • $116Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Denver, CO (DEN)07/09/202505:35 am
    Denver, CO (DEN)Chicago, IL (ORD)07/15/202508:30 pm
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  • $136Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Chicago, IL (MDW)Denver, CO (DEN)07/09/202506:15 am
    Denver, CO (DEN)Chicago, IL (MDW)07/15/202508:30 pm
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  • $226Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Denver, CO (DEN)07/09/202505:35 am
    Denver, CO (DEN)Chicago, IL (ORD)07/15/202504:55 pm
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  • $246Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Chicago, IL (MDW)Denver, CO (DEN)07/09/202506:15 am
    Denver, CO (DEN)Chicago, IL (MDW)07/15/202504:55 pm
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  • $430Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Cleveland, OH (CLE)05/20/202504:15 pm
    Cleveland, OH (CLE)Chicago, IL (ORD)06/04/202510:00 pm
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  • $67Spirit Airlines flight Spirit Airlines 
    FromToDepartureTime
    Chicago, IL (ORD)Fort Lauderdale, FL (FLL)05/20/202506:15 am
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Know what to do when flying to United States?

Boston Travel Guide Boston is US nation's history and myth capital. It was, until 1755, the biggest city in America and the most directly affected by the British Crown (you can see that if you only consider that it has the same name as the city in UK). [...]
Boston History  On the 17th of September 1630, Boston was established by English Puritan colonists.  The Puritans are confused sometimes with Pilgrims, who established Plymouth 10 years before in what we know as Barnstable County, Plymouth County, and [...]
Boston Sightseeing  There are many things that you can see and do in Boston because of its historic and cultural background.  One of the many museums that you can visit is the Boston Museum of Fine Arts, which is a smaller version of the Metropolitan Museum of [...]
Boston Nightlife  There are many places that you can go to for enjoying nightlife in Boston, Massachusetts.  One of these is called Kings, offering a variety of activities and a diverse clientèle.  During the night, Kings brings a lengthy wait for tables [...]
Boston Pictures
  • Boston - Bostonview
  • Harbor - Bostonview
  • Boston - Bostonview
  • Boston - Bostonview
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