Cheap flights from Chicago (CHI) to Illinois (IL)

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How to find the cheapest flight from
Chicago (CHI) to Illinois

All the information you need to plan the best CHI to ORD flight in 2021: compare Chicago to Illinois flight prices with the expected peak season, weather and rainfall in Illinois.
When is the cheapest time to fly from Chicago to Illinois (CHI - IL)?

When flying from Chicago to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Chicago to Illinois in November, December 2021

The best prices found for CHI to Illinois flights for November, December
29 Dec - 5 Jan
$89pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
PIA
Greater Peoria
PIA
Greater Peoria
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
12 Dec - 19 Dec
$109pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
PIA
Greater Peoria
PIA
Greater Peoria
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
25 Dec - 8 Jan
$112pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Chicago to Illinois 2022 flight deals

Cheap flights to Illinois from Chicago found for next year
29 Dec - 5 Jan
$89pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
PIA
Greater Peoria
PIA
Greater Peoria
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
12 Dec - 19 Dec
$109pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
PIA
Greater Peoria
PIA
Greater Peoria
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
25 Dec - 8 Jan
$112pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Non-stop flights to Illinois from Chicago

Save time with Chicago to Illinois direct flight deals
29 Dec - 5 Jan
$89pp
ORD
Chicago O'Hare Intl
American Airlines
Non-Stop
PIA
Greater Peoria
PIA
Greater Peoria
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
4 Feb - 7 Feb
$97pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
STL
Lambert-St Louis
STL
Lambert-St Louis
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl
12 Dec - 19 Dec
$109pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
PIA
Greater Peoria
PIA
Greater Peoria
United Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to Illinois

Late deals on round-trip flights to Illinois from Chicago, departing today and this week
7 Dec - 8 Dec
$120pp
ORD
Chicago O'Hare Intl
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
10 Dec - 13 Dec
$121pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
5 Dec - 6 Dec
$133pp
ORD
Chicago O'Hare Intl
Spirit Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to Illinois from Chicago

The cheapest one-way flights from Chicago to Illinois
9:30 am - 10:53 am
United Airlines
Nonstop
1h 23m
ORD - STL
United Airlines
$75
United
1:30 am - 7:03 am
Delta
1 Stop
5h 33m
MDW - STL
Delta
$83
Delta
2:40 pm - 12:25 am
Frontier
1 Stop
9h 45m
ORD - STL
Frontier
$85
Kiwi.com

Related info for your journey

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

Flight FAQs

From Chicago to Illinois

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

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

Can I find flights from Chicago to Illinois for under $100 on Cheapflights?

Yes, there are multiple flights from Chicago to Illinois for under $100. The cheapest flight booked recently is on American Airlines for just $89, but on average you can expect to pay $121.

Are there nonstop flights from Chicago to Illinois for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to Illinois under $100. A good price for a nonstop flight from Chicago to Illinois is less than $150.

Are there last-minute flights available from Chicago to Illinois for under $200?

There are currently 20+ open flights from Chicago to Illinois within the next 7 days for less than $200.

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

The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $38. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Chicago to Illinois for a low price.

What are the most popular routes from Chicago to Illinois?

Most travelers choose Chicago O'Hare Intl - Lambert-St Louis, Chicago Midway - Lambert-St Louis or Chicago O'Hare Intl - Moline Quad-City when deciding on the best route from Chicago to Illinois.

COVID Restrictions

View COVID Travel Restrictions for Illinois (IL)

Do I need a COVID test to fly to Illinois from Chicago?

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

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

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

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

Do I need a test to fly back to Chicago from Illinois?

Returning to Chicago 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 Chicago.

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

Hide COVID Travel Restrictions for Illinois (IL)

Destination points for flights from Chicago to Illinois

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

Destination information for Illinois

Things to know before you go - useful duration and weather info for your trip from Chicago to Illinois.
Flight duration from Chicago to Illinois
1h 18m

Airports servicing Chicago

Midway (MDW)
Rockford (RFD)

Airports servicing

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