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Cheap flights from Chicago to Denver

One-way from $73, found by travellers in the last 7 days. Aviasales checks the live price.

Departure
Return
Prices for nearby dates
Fri, Oct 16Any priceSat, Oct 17Any priceSun, Oct 18Any priceMon, Oct 19$73Tue, Oct 20$153Wed, Oct 21Any priceThu, Oct 22Any priceFri, Oct 23Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Baggage and fare rules are shown on Aviasales, where the price is checked live.

Cheapest
$73
Frontier Airlines, flight F9 1483Found 5 days ago, 1 adult
Check price on Aviasales
6:30amChicagoMon, Oct 19
Travel time 2h 49m, nonstopORDDEN
8:19amDenverMon, Oct 19
$109
Frontier Airlines, flight F9 1483Found yesterday, 1 adult
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6:30amChicagoThu, Nov 12
Travel time 2h 56m, nonstopORDDEN
8:26amDenverThu, Nov 12
$149
Frontier Airlines, flight F9 3171Found 6 days ago, 1 adult
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6:21amChicagoThu, Mar 11
Travel time 3h, nonstopORDDEN
8:21amDenverThu, Mar 11
$153
Frontier Airlines, flight F9 1483Found yesterday, 1 adult
Check price on Aviasales
6:30amChicagoTue, Oct 20
Travel time 2h 49m, nonstopORDDEN
8:19amDenverTue, Oct 20
$158
Frontier Airlines, flight F9 1483Found 3 days ago, 1 adult
Check price on Aviasales
6:30amChicagoWed, Oct 7
Travel time 2h 45m, nonstopORDDEN
8:15amDenverWed, Oct 7

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in United StatesTravel eSIM from $4, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in Denver, booked ahead at a fixed price.
    See options
  • Things to do in DenverPopular tours from $39 per person.
    See ideas
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu1234$3215$1856$1827$1588$1819–10–11–12–13–14–15–16–17–18–19$7320$15321–22–23–24–25–26–27–28–29–30–31–

November 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11–12$10913–14–15–16–17–18–19–20–21–22–23–24–25–26–27–28–29–30–

December 2026

MoTuWeThFrSaSu1–2–345678910111213141516171819202122232425262728293031
$109 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Oct 19, $73.

Lowest fares by month

In the fares found this week, October has the lowest: from $73 one-way, against $149 in March 2027. Pick a month to see its cheapest date.

$0$50$100$150$73OctNovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$73Mon, Oct 19Nonstop
November$109Thu, Nov 12Nonstop
December—
January 2027—
February 2027—
March 2027$149Thu, Mar 11Nonstop
April 2027—
May 2027—
June 2027—
July 2027—
August 2027—
September 2027—

Questions travellers ask

What is the cheapest month to fly from Chicago to Denver?

In the fares found this week, October has the lowest: from $73 one-way, against $149 in March 2027.

Are there direct flights from Chicago to Denver?

Yes. Recent fares include nonstop flights with Frontier Airlines and United Airlines.

How long is the flight from Chicago to Denver?

A nonstop flight takes about 2h 39m. The distance is 886 mi.

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