Colorado Springs to Chicago COS → ORD, RFD
Colorado Springs Airport (COS) → O'Hare International Airport (ORD), Chicago Rockford International Airport (RFD)
The cheapest one-way found recently is $257 with American Airlines, 28 Oct, found yesterday.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $235 to $257.
Cheapest one-way found recently
$257
28 Oct · American Airlines
Colorado Springs Airport (COS) → O'Hare International Airport (ORD)
Leaves 12:46 p.m. · 2 h 45 min trip
nonstop
found yesterday
Cheapest nonstop one-way
$257
28 Oct · American Airlines
Colorado Springs Airport (COS) → O'Hare International Airport (ORD)
Leaves 12:46 p.m. · 2 h 45 min trip
nonstop
found yesterday
Found recently, and the cheapest we hold
$257 28 Octfound yesterdayOpen this trip
$208 16 Aug 2027found 4 days agoOpen this trip
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $158 to $273.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 4 departure dates from 24 Oct to 16 Aug 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
Yes. Among one-way fares leaving within 3 days of 28 Oct, 25 Oct costs $244: $13 less than the cheapest found recently.
Allegiant Air · Colorado Springs Airport (COS) → Chicago Rockford International Airport (RFD) · 1 stop · found 4 days ago
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 24 Oct | $257 | American Airlines | Colorado Springs Airport (COS) → O'Hare International Airport (ORD) | nonstop | found 5 days ago | Open this trip |
| 25 Oct | $244 | Allegiant Air | Colorado Springs Airport (COS) → Chicago Rockford International Airport (RFD) | 1 stop | found 4 days ago | Open this trip |
| 28 Oct | $257 | American Airlines | Colorado Springs Airport (COS) → O'Hare International Airport (ORD) | nonstop | found yesterday | Open this trip |
| 16 Aug 2027 | $208 | American Airlines | Colorado Springs Airport (COS) → O'Hare International Airport (ORD) | nonstop | found 4 days ago | Open this trip |
Which month looks cheapest?
August 2027 is the cheapest month — from $208.
Airlines on the cheapest dates: American Airlines, Allegiant Air.
Premium cabin fares from Colorado Springs to Chicago
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 28 Oct in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Colorado Springs to Chicago?
One-way
Fares 180 or more days before departure were typically 21% lower than 0 to 6 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $249 | $238 | +26% | 24 |
| 7–13 days | $249 | $238 | +26% | 23 |
| 180+ days | $198 | $198 | Cheapest seen | 12 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Denver → Chicago
102 km from Colorado Springs
$146
3 Dec – 5 Dec · DEN → ORD · out nonstop, back nonstop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Denver → Chicago
102 km from Colorado Springs
$84
$173 less than flying from Colorado Springs
16 Dec · DEN → MDW · nonstop
found today
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest one-way found recently is for 28 Oct. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work