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Cheap flights from Colorado Springs (COS) to Illinois from $120

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
COS — ORD
Jun 15 — Jun 221
From?
To?
Sat 6/15
Sat 6/22
1 adult, Economy
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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 36 days early can save you up to 192% on average compared to booking a flight this week. If booking 36 days before your flight isn’t an option for you, users have found flights from Colorado Springs to Illinois for as little as $376 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 $555 for flights departing within the next 3 days.

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

Our data shows that January tends to be the cheapest month to fly to Illinois from Colorado Springs. Users have commonly found prices around $368 for the month, but tickets can be as low as $177. Due to multiple factors, prepare for potentially higher prices in November.

What is the cheapest time of day to fly from COS to 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.

Cheap Colorado Springs to Illinois flights in June & July 2024

Find cheap flight options from Colorado Springs to Illinois specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Prices were last updated on June 10, 2024.
The lowest fares we've come across on flights traveling from Colorado Springs to Illinois in June and July 2024. Check back in a little while for more flight options.
Sun 7/215:07 pmCOS - ORD
1 stop24h 12mSun Country Air
Wed 7/248:05 pmORD - COS
1 stop22h 38mSun Country Air
Deal found 6/8$245
Sun 7/216:00 amCOS - ORD
1 stop7h 32mDelta
Tue 7/231:31 pmORD - COS
2 stops8h 29mDelta
Deal found 6/8$265
Thu 7/46:00 amCOS - STL
1 stop7h 56mDelta
Mon 7/86:06 amSTL - COS
1 stop5h 34mDelta
Deal found 6/9$284
Sun 7/216:00 amCOS - ORD
1 stop7h 32mDelta
Wed 7/2410:20 amORD - COS
2 stops11h 40mDelta
Deal found 6/8$285
Thu 7/45:15 pmCOS - ORD
2 stops17h 16mUnited Airlines
Fri 7/52:36 pmORD - COS
1 stop6h 29mUnited Airlines
Deal found 6/9$293
Sun 7/216:00 amCOS - ORD
1 stop7h 32mDelta
Tue 7/233:45 pmORD - COS
1 stop6h 15mDelta
Deal found 6/8$309
Sat 6/294:54 pmCOS - ORD
1 stop5h 47mAmerican Airlines
Tue 7/26:39 pmORD - COS
1 stop6h 11mAmerican Airlines
Deal found 6/8$310
Tue 7/166:30 pmCOS - ORD
1 stop4h 29mUnited Airlines
Thu 7/183:50 pmORD - COS
1 stop5h 45mUnited Airlines
Deal found 6/9$325
Sat 6/296:05 amCOS - ORD
Nonstop2h 50mUnited Airlines
Tue 7/27:53 pmORD - COS
Nonstop2h 49mUnited Airlines
Deal found 6/8$331

Colorado Springs to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Colorado Springs and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
The lowest fares we've come across on flights traveling from Colorado Springs to Illinois in June and July 2024. Check back in a little while for more flight options.
Wed 8/146:00 amCOS - ORD
1 stop6h 43mAmerican Airlines
Mon 8/195:00 amORD - COS
1 stop5h 56mAmerican Airlines
Deal found 6/9$241
Sun 7/215:07 pmCOS - ORD
1 stop24h 12mSun Country Air
Wed 7/248:05 pmORD - COS
1 stop22h 38mSun Country Air
Deal found 6/8$245
Tue 8/1311:35 amCOS - STL
1 stop4h 28mDelta
Wed 8/146:06 amSTL - COS
1 stop5h 34mDelta
Deal found 6/9$246
Sat 8/176:00 amCOS - ORD
1 stop6h 43mAmerican Airlines
Sat 8/2412:02 pmORD - COS
1 stop5h 11mAmerican Airlines
Deal found 6/8$250
Sun 7/216:00 amCOS - ORD
1 stop7h 32mDelta
Tue 7/231:31 pmORD - COS
2 stops8h 29mDelta
Deal found 6/8$265
Fri 8/911:35 amCOS - STL
1 stop4h 28mDelta
Mon 8/126:06 amSTL - COS
1 stop5h 34mDelta
Deal found 6/9$266
Thu 7/46:00 amCOS - STL
1 stop7h 56mDelta
Mon 7/86:06 amSTL - COS
1 stop5h 34mDelta
Deal found 6/9$284
Sun 7/216:00 amCOS - ORD
1 stop7h 32mDelta
Wed 7/2410:20 amORD - COS
2 stops11h 40mDelta
Deal found 6/8$285
Tue 8/1310:46 amCOS - STL
1 stop5h 31mAmerican Airlines
Wed 8/146:00 amSTL - COS
2 stops11h 13mAmerican Airlines
Deal found 6/9$288

Colorado Springs to Illinois flights leaving soon

Find last-minute flight options from Colorado Springs to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Consider one of these great deals we found on last-minute flights from Colorado Springs to Illinois. Users should examine the flight details to ensure there are no surprises.
Thu 6/135:50 pmCOS - ORD
1 stop24h 16mSun Country Air
Sun 6/166:25 amORD - COS
1 stop12h 14mSun Country Air
Deal found 6/8$375
Fri 6/1410:42 amCOS - STL
1 stop7h 35mAmerican Airlines
Sun 6/165:27 amSTL - COS
1 stop6h 39mAmerican Airlines
Deal found 6/9$470
Sun 6/166:35 pmCOS - ORD
3 stops36h 46mMultiple Airlines
Sat 7/138:34 pmORD - COS
2 stops22h 01mMultiple Airlines
Deal found 6/8$479
Sun 6/166:08 amCOS - ORD
1 stop6h 29mAmerican Airlines
Sat 7/1312:00 pmORD - COS
1 stop5h 03mAmerican Airlines
Deal found 6/8$480
Sun 6/166:35 pmCOS - ORD
3 stops36h 46mMultiple Airlines
Sat 7/1310:36 amORD - COS
3 stops33h 01mMultiple Airlines
Deal found 6/8$481
Sun 6/166:35 pmCOS - ORD
2 stops26h 17mMultiple Airlines
Sat 7/138:34 pmORD - COS
2 stops22h 01mMultiple Airlines
Deal found 6/8$486
Sun 6/161:00 pmCOS - ORD
Nonstop2h 40mUnited Airlines
Sat 7/135:16 amORD - COS
1 stop4h 23mUnited Airlines
Deal found 6/8$501
Sat 6/1511:36 amCOS - ORD
1 stop7h 54mAmerican Airlines
Sun 6/167:00 amORD - COS
1 stop5h 06mAmerican Airlines
Deal found 6/8$522
Tue 6/113:25 pmCOS - ORD
2 stops17h 30mUnited Airlines
Wed 6/121:12 pmORD - COS
1 stop5h 42mUnited Airlines
Deal found 6/8$529

One-way flights to Illinois from Colorado Springs

Search for one-way flight options from Colorado Springs to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
Some of the best available deals we've found on one-way flights from Colorado Springs to Illinois. Users in need of a round-trip flight from Colorado Springs to Illinois instead should update the search form at the top of page.
Sun 6/306:30 pmCOS - ORD
1 stop24h 13mSun Country Air
Deal found 6/9$120
Sun 6/237:05 pmCOS - ORD
1 stop23h 01mSun Country Air
Deal found 6/9$133
Thu 7/186:45 pmCOS - ORD
1 stop15h 41mSun Country Air
Deal found 6/9$143
Mon 9/26:35 pmCOS - ORD
1 stop14h 52mSun Country Air
Deal found 6/8$148
Thu 7/258:20 amCOS - STL
1 stop8h 14mDelta
Deal found 6/9$153
Thu 8/156:05 amCOS - ORD
Nonstop2h 50mUnited Airlines
Deal found 6/9$156
Sat 7/133:36 pmCOS - STL
1 stop5h 44mUnited Airlines
Deal found 6/9$188
Thu 8/156:10 pmCOS - ORD
2 stops10h 19mMultiple Airlines
Deal found 6/9$208
Sun 6/236:05 amCOS - ORD
Nonstop2h 50mUnited Airlines
Deal found 6/9$211

Find flights from Colorado Springs to Illinois within your budget

Customize your flight search to find flights from Colorado Springs to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$241 - $529

Route

Depart

Return

Price

Colorado SpringsChicago O'Hare Intl

COS - ORD

COSORD

Colorado Springs

Wed 8/14

1 stop6h 43m

Chicago O'Hare Intl

Mon 8/19

1 stop5h 56m

$241

Colorado SpringsLambert-St Louis

COS - STL

COSSTL

Colorado Springs

Tue 8/13

1 stop4h 28m

Lambert-St Louis

Wed 8/14

1 stop5h 34m

$246

Colorado SpringsLambert-St Louis

COS - STL

COSSTL

Colorado Springs

Fri 8/9

1 stop7h 44m

Lambert-St Louis

Mon 8/12

1 stop5h 34m

$266

Colorado SpringsChicago O'Hare Intl

COS - ORD

COSORD

Colorado Springs

Mon 7/1

1 stop4h 26m

Chicago O'Hare Intl

Fri 7/5

1 stop5h 25m

$270

Colorado SpringsChicago O'Hare Intl

COS - ORD

COSORD

Colorado Springs

Wed 7/10

1 stop7h 02m

Chicago O'Hare Intl

Tue 7/16

1 stop5h 35m

$271

Colorado SpringsLambert-St Louis

COS - STL

COSSTL

Colorado Springs

Tue 8/13

1 stop5h 31m

Lambert-St Louis

Wed 8/14

2 stops11h 13m

$288

Colorado SpringsChicago O'Hare Intl

COS - ORD

COSORD

Colorado Springs

Thu 7/4

2 stops17h 16m

Chicago O'Hare Intl

Fri 7/5

1 stop6h 29m

$293

Colorado SpringsChicago O'Hare Intl

COS - ORD

COSORD

Colorado Springs

Wed 8/14

Nonstop2h 50m

Chicago O'Hare Intl

Mon 8/19

Nonstop2h 54m

$297

Colorado SpringsChicago O'Hare Intl

COS - ORD

COSORD

Colorado Springs

Thu 6/27

3 stops25h 00m

Chicago O'Hare Intl

Sun 6/30

2 stops12h 47m

$529

Flights are sorted by cheapest first

Deals found on 6/9

No data available for this route at this time. Please check back soon.

Best time to book a flight from Colorado Springs to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Colorado Springs with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated June 10, 2024.
See what other customers who have flown with United Airlines, American Airlines and Delta from Colorado Springs to Illinois have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,295 reviews
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,661 reviews
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,172 reviews
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Sun Country Air
7.2
Good
588 reviews
Delta
8.0
Very good
10,295 reviews

Comfort

7.9

Entertainment

8.0

Crew

8.6

Boarding

8.2

Food

7.4

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Colorado Springs to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

  • Can I find flights from Colorado Springs to Illinois for under $300 on Cheapflights?

    Yes, there are multiple flights from Colorado Springs to Illinois for under $300. The cheapest flight booked recently is on American Airlines for just $241, but on average you can expect to pay $295.

  • Are there nonstop flights from Colorado Springs to Illinois for under $300 on Cheapflights?

    Cheapflights has at least 19 direct flights from Colorado Springs to Illinois under $300. A good price for a nonstop flight from Colorado Springs to Illinois is less than $425.

  • Are there last-minute flights available from Colorado Springs to Illinois for under $400?

    There are currently 20+ open flights from Colorado Springs to Illinois within the next 7 days for less than $400.

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

    The cheapest airline one-way is Sun Country Air, with whom users have recently found tickets for as low as $120. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Colorado Springs to Illinois for a low price.

  • 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 - Lambert-St Louis or Colorado Springs - Chicago Midway 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 Emirates (85%), Lufthansa (85%) or SkyWest Airlines (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Colorado Springs to Illinois?

    The cheapest flight price from Colorado Springs to Illinois is $160. On average you can expect to pay $1,577. The most popular route, (Colorado Springs - Chicago O'Hare Intl), can usually be booked for $231.

  • What does COS to ORD mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Colorado Springs Airport to Chicago O'Hare Intl Airport flight would often be abbreviated as a COS to ORD flight. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI).

  • Can I find deals for flights from Colorado Springs to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Colorado Springs to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Colorado Springs to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Colorado Springs to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Colorado Springs to Illinois that include hotel bookings?

    Yes. In addition to deals on Colorado Springs to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado Springs to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado Springs to Illinois.

  • Can I find deals for business class flights from Colorado Springs to Illinois?

    Yes. Cheapflights offers flight deals from Colorado Springs to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Colorado Springs to Illinois that allow pets onboard?

    Many airlines flying from Colorado Springs to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Colorado Springs to Illinois?

    Yes, you can often find last-minute deals on Colorado Springs to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Colorado Springs to Illinois flight deals updated?

    The Colorado Springs to Illinois flight deals you see on this page were last updated on 6/9.

  • What is the cheapest month to book a flight from Colorado Springs to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Colorado Springs to Illinois (average of $244). Flying from Colorado Springs to Illinois in July is currently the most expensive (average of $324). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Colorado Springs to Illinois
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Top 3 airlines flying from Colorado Springs to Illinois

Discover the top 3 airlines that operate flights from Colorado Springs to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,020,828 searches. Data last updated June 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$198Average$392FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$214Average$474FlexibilityNo cancel feeOn-time71%
DeltaCheapest$271Average$626FlexibilityNo cancel feeOn-timeN/A
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Washington, D.C. to New York flights
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Los Angeles to Vancouver flights
Phoenix to Dallas flights
Houston to New Orleans flights
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Colorado Springs to Indiana flights

Search flights from Colorado Springs to Illinois by cabin class

Find flights from Colorado Springs to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from Colorado Springs to Illinois

Find hourly flight availability from Colorado Springs to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 10, 2024.
33%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
67%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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