Cheap flights from Colorado Springs (COS) to Illinois (IL)

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How to find the cheapest flight from
Colorado Springs (COS) to Illinois

All the information you need to plan the best COS to ORD flight in 2021: compare Colorado Springs to Illinois flight prices with the expected peak season, weather and rainfall in Illinois.
How far in advance should I book a flight from Colorado Springs to Illinois?

Users have found that booking a flight from Colorado Springs to Illinois at least 20 days early can save you up to 11% on average compared to booking a flight this week. If booking 20 days before your flight isn’t an option for you, users have found flights from Colorado Springs to Illinois for as little as $122 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $139 for flights departing within the next 3 days.

When is the cheapest time to fly from Colorado Springs to Illinois (COS - IL)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado Springs to Illinois as you normally would.

What is the cheapest month to fly from Colorado Springs to Illinois?

Our data shows that August tends to be the cheapest month to fly to Illinois from Colorado Springs. Users have commonly found prices around $133 for the month, but tickets can be as low as $35. Due to multiple factors, prepare for potentially higher prices in December.

Cheap flights from Colorado Springs to Illinois in November, December 2021

The best prices found for COS to Illinois flights for November, December
19 Dec - 20 Dec
$200pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
COS
Colorado Springs
14 Dec - 17 Jan
$211pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
 
1 STOP
COS
Colorado Springs
10 Dec - 13 Dec
$216pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
COS
Colorado Springs

Colorado Springs to Illinois 2022 flight deals

Cheap flights to Illinois from Colorado Springs found for next year
19 Dec - 20 Dec
$200pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
COS
Colorado Springs
14 Dec - 17 Jan
$211pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
 
1 STOP
COS
Colorado Springs
10 Dec - 13 Dec
$216pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
COS
Colorado Springs

Non-stop flights to Illinois from Colorado Springs

Save time with Colorado Springs to Illinois direct flight deals
27 Jan - 31 Jan
$157pp
COS
Colorado Springs
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
COS
Colorado Springs
14 Jan - 19 Jan
$204pp
COS
Colorado Springs
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
COS
Colorado Springs
4 Mar - 7 Mar
$226pp
COS
Colorado Springs
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
COS
Colorado Springs

Last minute flights from Colorado Springs to Illinois

Late deals on round-trip flights to Illinois from Colorado Springs, departing today and this week
10 Dec - 13 Dec
$216pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
COS
Colorado Springs
10 Dec - 13 Dec
$236pp
COS
Colorado Springs
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
COS
Colorado Springs
8 Dec - 13 Dec
$241pp
COS
Colorado Springs
Multiple Airlines
   
2 STOPS
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
COS
Colorado Springs

One-way flights to Illinois from Colorado Springs

The cheapest one-way flights from Colorado Springs to Illinois
1:00 pm - 3:21 am
Delta
2 Stops
13h 21m
COS - ORD
Delta
$139
Delta
6:37 pm - 7:11 pm
Frontier
1 Stop
23h 34m
COS - ORD
Frontier
$145
Kiwi.com
9:37 am - 2:21 am
American Airlines
2 Stops
15h 44m
COS - ORD
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Colorado Springs</span> to <span class="emphasized">Illinois</span> flights.

Flight FAQs

From Colorado Springs to Illinois

What airport do you fly from for flights from Colorado Springs to Illinois?

If you book a flight to Illinois from Colorado Springs, you will be flying from Colorado Springs, which is the city’s only airport. Colorado Springs (COS) is located 6.7 mi from the center of Colorado Springs.

Which airlines flying from Colorado Springs to Illinois have flexible cancellations due to COVID-19?

Some of our airline partners flying from Colorado Springs to Illinois have new flexible policies in place due to COVID-19. United Airlines, American Airlines, and Frontier are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like United Airlines with this kind of flexibility.

Can I find flights from Colorado Springs to Illinois for under $200 on Cheapflights?

Yes, there are multiple flights from Colorado Springs to Illinois for under $200. The cheapest flight booked recently is on Frontier for just $136, but on average you can expect to pay $167.

Are there nonstop flights from Colorado Springs to Illinois for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Colorado Springs to Illinois under $200. A good price for a nonstop flight from Colorado Springs to Illinois is less than $333.

Are there last-minute flights available from Colorado Springs to Illinois for under $300?

There are currently 20+ open flights from Colorado Springs to Illinois within the next 7 days for less than $300.

What are the cheapest airlines to fly from Colorado Springs to Illinois one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $64. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Colorado Springs to Illinois for a low price.

What are the most popular airlines that fly from Colorado Springs to Illinois?

When booking a flight from Colorado Springs to Illinois, you may want to consider flying on American Airlines, Frontier or United Airlines as they are the most popular for this route.

What are the cheapest flights from Colorado Springs to Illinois?

The cheapest flight price from Colorado Springs to Illinois is $86. On average you can expect to pay $290. The most popular route, (Colorado Springs - Chicago O'Hare Intl), can usually be booked for $163.

What are the most popular routes from Colorado Springs to Illinois?

When deciding which route to take from Colorado Springs to Illinois consider Colorado Springs - Chicago O'Hare Intl, Colorado Springs - Chicago Midway or Colorado Springs - Lambert-St Louis as they are the most popular.

What are the most reliable airlines from Colorado Springs to Illinois?

No one likes to see their flight delayed. When booking a flight from Colorado Springs to Illinois consider choosing SkyWest Airlines (94%), American Airlines (93%) or United Airlines (88%) as they are the most reliable in getting you off to your destination on time.

COVID Restrictions

View COVID Travel Restrictions for Illinois (IL)

Do I need a COVID test to fly to Illinois from Colorado Springs?

Information is based on travel restrictions for travel to Illinois within the United States

Most visitors from Colorado Springs need to provide a negative COVID-19 test result and/or quarantine to enter Illinois.

COVID-19 testing requirements
Visitors from Colorado Springs must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Illinois.

Quarantine requirements
Visitors from Colorado Springs are not required to quarantine after entering Illinois.

Do I need a test to fly back to Colorado Springs from Illinois?

Returning to Colorado Springs from Illinois

COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Colorado Springs.

Quarantine requirements
Visitors from Illinois are not required to quarantine after entering Colorado Springs.

Hide COVID Travel Restrictions for Illinois (IL)

Destination points for flights from Colorado Springs to Illinois

Select to see more specific information for flights from Colorado Springs to all places in Illinois.

Destination information for Illinois

Things to know before you go - useful duration and weather info for your trip from Colorado Springs to Illinois.
Flight duration from COS to Illinois
2h 35m

Airports servicing Colorado Springs

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Top 3 airlines flying from Colorado Springs to Illinois

The chart below displays the airlines Cheapflights users traveling from Colorado Springs to Illinois choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$101 $201 No cancel fee 62%
American Airlines
$126 $364 No cancel fee 71%
United Airlines
$185 $391 No cancel fee 69%
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