Cheap flights from Denver to Chicago from $38

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest

$38

Frontier Airlines, flight F9 3174Found yesterday, 1 adult

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9:26pmDenverMon, Dec 14

Travel time 2h 28m, nonstopDENORD

12:54amChicagoTue, Dec 15

$51

Frontier Airlines, flight F9 3174Found 5 days ago, 1 adult

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8:59pmDenverWed, Jan 13

Travel time 2h 27m, nonstopDENORD

12:26amChicagoThu, Jan 14

$84

Southwest Airlines, flight WN 1698Found 6 days ago, 1 adult

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2:10pmDenverWed, Dec 16

Travel time 2h 20m, nonstopDENMDW

5:30pmChicagoWed, Dec 16

$102

Southwest Airlines, flight WN 459Found 6 days ago, 1 adult

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7:05amDenverTue, Jan 5

Travel time 2h 25m, nonstopDENMDW

10:30amChicagoTue, Jan 5

$125

Southwest Airlines, flight WN 1701Found 6 days ago, 1 adult

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8:55pmDenverMon, Nov 30

Travel time 2h 20m, nonstopDENMDW

12:15amChicagoTue, Dec 1

Round trips

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

Oct 28 – Nov 1Frontier Airlines, 1 stop out, 1 stop back $302

Plan the rest of the trip

Mobile data in United StatesTravel eSIM from $4, installed before you fly.
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Getting from the airportTransfers and car hire in Chicago, booked ahead at a fixed price.
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Things to do in ChicagoPopular tours from $27.95 per person.
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Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
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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

MoTuWeThFrSaSu12345678910111213141516171819202122232425–26–27–28–29–30$171 31$131

November 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11–12–13–14–15–16–17–18–19–20$126 21–22–23–24–25–26–27–28–29–30$125

December 2026

MoTuWeThFrSaSu1–2–3–4–5–6–7–8–9–10–11–12–13–14$38 15–16$84 17–18–19–20–21–22–23–2425262728293031

$51 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Dec 14, $38.

Lowest fares by month

In the fares found this week, December has the lowest: from $38 one-way, against $131 in October. Pick a month to see its cheapest date.

Oct$131
Nov$125
Dec$38
Jan$51
Febno fares yet
Marno fares yet
Aprno fares yet
Mayno fares yet
Junno fares yet
Julno fares yet
Augno fares yet
Sepno fares yet

Show as a table

Month	Cheapest one-way	Date	Stops
October	$131	Sat, Oct 31	Nonstop
November	$125	Mon, Nov 30	Nonstop
December	$38	Mon, Dec 14	Nonstop
January 2027	$51	Wed, Jan 13	Nonstop
February 2027	—
March 2027	—
April 2027	—
May 2027	—
June 2027	—
July 2027	—
August 2027	—
September 2027	—

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in Chicago. Average daily high and low and monthly precipitation, 1991–2020 normals.

	Oct2026	Nov	Dec	Jan2027	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep
Lowest fare	$131	$125	$38	$51	–	–	–	–	–	–	–	–
High °C	18°	10°	3°	0°	3°	9°	16°	22°	27°	30°	28°	25°
Low °C	8°	2°	-4°	-7°	-5°	0°	5°	11°	17°	20°	19°	15°
Precipitation mm	98	69	59	58	54	68	105	121	115	102	104	85

Source: Chicago on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

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

In the fares found this week, December has the lowest: from $38 one-way, against $131 in October.

What is the weather in Chicago in December?

In December, the cheapest month to fly, the average daily high in Chicago is 3 °C and the low -4 °C.

Are there direct flights from Denver to Chicago?

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

How long is the flight from Denver to Chicago?

A nonstop flight takes about 2h 20m. The distance is 886 mi.

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