How long is the flight from United States to Illinois?

The flight from United States to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Los Angeles (a popular airport in United States) to Chicago O'Hare Intl (the most popular airport in Illinois), then the flight time is 3h 55m on average. If you fly from Miami (another popular airport in United States) to Chicago O'Hare Intl, then the average flight time is 3h 25m.

$83 Cheap Flights to Illinois in 2026/27

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Recent flights found to popular cities in Illinois

Find flights to these popular cities in Illinois from your nearest airport.

Flights to Chicago

Search all flight deals to Chicago

Frontier

Oct 22

BWI

2h 23m

ORD

Oct 23

ORD

2h 03m

BWI

$176

Frontier

Oct 15

BWI

2h 23m

ORD

Oct 19

ORD

2h 03m

BWI

$177

Frontier

Oct 18

BWI

10h 39m

1 stop

ORD

Oct 26

ORD

2h 03m

BWI

$178

Frontier

Oct 1

BWI

8h 55m

1 stop

ORD

Oct 4

ORD

2h 05m

BWI

$179

Frontier

Oct 21

DFW

2h 23m

MDW

Oct 25

MDW

2h 33m

DFW

$180

Frontier

Oct 14

BWI

6h 52m

1 stop

ORD

Oct 18

ORD

2h 03m

BWI

$180

Frontier

Nov 13

BWI

24h 34m

1 stop

ORD

Nov 15

ORD

1h 57m

BWI

$181

Frontier

Oct 19

BWI

2h 23m

ORD

Oct 23

ORD

2h 03m

BWI

$182

Frontier

Oct 1

BWI

2h 20m

ORD

Oct 9

ORD

2h 03m

BWI

$183

Frontier

Oct 1

BWI

2h 20m

ORD

Oct 4

ORD

2h 05m

BWI

$184

Frontier

Nov 20

BWI

2h 28m

ORD

Nov 23

ORD

2h 10m

BWI

$185

Frontier

Oct 29

BWI

2h 30m

ORD

Nov 2

ORD

5h 18m

1 stop

BWI

$186

Flights to Peoria, Illinois

Search all flight deals to Peoria, Illinois

Allegiant Air

Oct 29

DEN

1h 59m

PIA

Nov 1

PIA

2h 20m

DEN

$119

Multiple Airlines

Oct 29

DEN

1h 59m

PIA

Nov 1

PIA

27h 59m

1 stop

DEN

$246

Multiple Airlines

Oct 28

LAX

21h 16m

1 stop

PIA

Oct 29

PIA

8h 59m

1 stop

LAX

$247

Multiple Airlines

Oct 27

DFW

24h 56m

2 stops

PIA

Oct 29

PIA

6h 53m

1 stop

DFW

$266

Multiple Airlines

Oct 28

LAX

21h 16m

1 stop

PIA

Oct 29

PIA

8h 59m

1 stop

LAX

$296

Multiple Airlines

Nov 6

LAX

11h 30m

1 stop

PIA

Nov 8

PIA

18h 24m

1 stop

LAX

$297

Multiple Airlines

Oct 28

LAX

19h 54m

2 stops

PIA

Oct 29

PIA

8h 59m

1 stop

LAX

$298

Multiple Airlines

Nov 13

LAX

11h 30m

1 stop

PIA

Nov 15

PIA

23h 27m

1 stop

LAX

$303

Multiple Airlines

Oct 27

DFW

23h 39m

1 stop

PIA

Oct 29

PIA

6h 53m

1 stop

DFW

$304

Multiple Airlines

Oct 27

DFW

24h 56m

2 stops

PIA

Oct 29

PIA

6h 53m

1 stop

DFW

$306

Allegiant Air

Oct 1

DEN

1h 59m

PIA

Oct 4

PIA

2h 20m

DEN

$306

United Airlines

Nov 6

DEN

2h 21m

PIA

Nov 9

PIA

6h 14m

1 stop

DEN

$309

Flights to Moline

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American Airlines

Oct 17

LGA

5h 51m

1 stop

MLI

Oct 20

MLI

4h 45m

1 stop

LGA

$241

American Airlines

Oct 17

JFK

4h 37m

1 stop

MLI

Oct 20

MLI

7h 39m

1 stop

JFK

$241

Delta

Oct 31

IAD

7h 16m

1 stop

MLI

Nov 4

MLI

7h 09m

1 stop

IAD

$271

Multiple Airlines

Sep 30

LAX

22h 45m

1 stop

MLI

Oct 4

MLI

19h 47m

1 stop

LAX

$271

Multiple Airlines

Sep 30

PHX

13h 36m

1 stop

MLI

Oct 4

MLI

28h 18m

1 stop

PHX

$273

Multiple Airlines

Oct 23

ATL

19h 59m

1 stop

MLI

Oct 25

MLI

21h 42m

1 stop

ATL

$286

American Airlines

Oct 17

EWR

7h 42m

1 stop

MLI

Oct 20

MLI

5h 26m

1 stop

EWR

$291

Delta

Oct 17

IAD

5h 18m

1 stop

MLI

Oct 21

MLI

6h 38m

1 stop

IAD

$291

American Airlines

Oct 7

IAD

7h 39m

1 stop

MLI

Oct 14

MLI

6h 39m

1 stop

IAD

$295

American Airlines

Nov 7

IAD

10h 23m

2 stops

MLI

Nov 14

MLI

5h 49m

1 stop

IAD

$296

Multiple Airlines

Oct 23

ATL

14h 40m

1 stop

MLI

Oct 25

MLI

21h 42m

1 stop

ATL

$298

American Airlines

Nov 7

IAD

4h 47m

1 stop

MLI

Nov 14

MLI

6h 27m

2 stops

IAD

$300

Flights to Champaign

Search all flight deals to Champaign

American Airlines

Oct 17

LGA

4h 57m

1 stop

CMI

Oct 24

CMI

4h 52m

1 stop

LGA

$279

American Airlines

Oct 14

BWI

5h 51m

1 stop

CMI

Oct 21

CMI

4h 21m

1 stop

BWI

$300

American Airlines

Oct 17

EWR

4h 45m

1 stop

CMI

Oct 24

CMI

4h 24m

1 stop

EWR

$315

American Airlines

Oct 14

DCA

4h 24m

1 stop

CMI

Oct 21

CMI

7h 21m

1 stop

DCA

$336

American Airlines

Sep 26

EWR

7h 04m

1 stop

CMI

Sep 30

CMI

7h 06m

1 stop

EWR

$352

American Airlines

Sep 30

DCA

5h 58m

1 stop

CMI

Oct 6

CMI

4h 11m

1 stop

DCA

$352

American Airlines

Oct 17

LGA

7h 45m

1 stop

CMI

Oct 24

CMI

11h 34m

2 stops

LGA

$364

American Airlines

Oct 3

BWI

5h 31m

1 stop

CMI

Oct 7

CMI

4h 01m

1 stop

BWI

$372

American Airlines

Sep 30

DCA

5h 58m

1 stop

CMI

Oct 6

CMI

4h 11m

1 stop

DCA

$372

American Airlines

Oct 24

IAH

5h 44m

1 stop

CMI

Oct 26

CMI

5h 29m

1 stop

IAH

$375

American Airlines

Nov 24

DCA

6h 38m

1 stop

CMI

Dec 4

CMI

5h 50m

1 stop

DCA

$375

American Airlines

Oct 24

IAH

9h 56m

2 stops

CMI

Oct 26

CMI

7h 28m

1 stop

IAH

$381

Flights to Bloomington, Illinois

Search all flight deals to Bloomington, Illinois

American Airlines

Oct 30

CLT

6h 31m

1 stop

BMI

Nov 2

BMI

6h 18m

1 stop

CLT

$319

Delta

Oct 28

ATL

1h 51m

BMI

Nov 1

BMI

1h 48m

ATL

$319

American Airlines

Oct 13

DCA

4h 35m

1 stop

BMI

Oct 17

BMI

7h 14m

1 stop

DCA

$319

American Airlines

Oct 30

CLT

7h 08m

1 stop

BMI

Nov 2

BMI

7h 30m

2 stops

CLT

$324

American Airlines

Oct 28

ATL

7h 59m

2 stops

BMI

Nov 1

BMI

6h 48m

1 stop

ATL

$324

American Airlines

Oct 13

DCA

7h 12m

1 stop

BMI

Oct 17

BMI

6h 50m

2 stops

DCA

$324

Delta

Dec 11

TPA

7h 06m

1 stop

BMI

Dec 13

BMI

5h 09m

1 stop

TPA

$329

American Airlines

Nov 5

MCO

7h 33m

1 stop

BMI

Nov 8

BMI

4h 44m

1 stop

MCO

$329

American Airlines

Oct 17

TPA

5h 37m

1 stop

BMI

Oct 20

BMI

7h 53m

2 stops

TPA

$334

American Airlines

Nov 5

MCO

8h 58m

2 stops

BMI

Nov 8

BMI

4h 44m

1 stop

MCO

$334

American Airlines

Oct 17

TPA

7h 57m

2 stops

BMI

Oct 20

BMI

7h 53m

2 stops

TPA

$339

American Airlines

Nov 5

MCO

9h 58m

2 stops

BMI

Nov 8

BMI

10h 39m

2 stops

MCO

$339

Find the cheapest flights from the United States to Illinois

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from the United States to Illinois

Enter your travel dates to find the best prices.

9:58 am - 11:21 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 23mnonstop

6:00 am - 9:03 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 03mnonstop

$176Frontier

Thu, Oct 22 - Fri, Oct 23

9:58 am - 11:21 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 23mnonstop

6:00 am - 9:03 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 03mnonstop

$177Frontier

Thu, Oct 15 - Mon, Oct 19

9:09 am - 10:29 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

5:55 pm - 9:02 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 07mnonstop

$198United Airlines

Tue, Oct 6 - Fri, Oct 9

12:21 am - 6:34 amLAX Los Angeles-ORD Chicago O'Hare Intl

4h 13mnonstop

3:49 pm - 11:31 pmORD Chicago O'Hare Intl-LAX Los Angeles

9h 42m1 stop Seattle/Tacoma Intl

$198Multiple Airlines

Fri, Oct 23 - Tue, Oct 27

12:21 am - 6:34 amLAX Los Angeles-ORD Chicago O'Hare Intl

4h 13mnonstop

9:00 am - 5:59 pmORD Chicago O'Hare Intl-LAX Los Angeles

10h 59m1 stop Seattle/Tacoma Intl

$198Multiple Airlines

Mon, Oct 19 - Tue, Oct 27

9:30 am - 10:50 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 20mnonstop

7:00 am - 2:27 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

6h 27m1 stop Newark

$203United Airlines

Thu, Nov 12 - Sat, Nov 14

6:30 pm - 7:59 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 29mnonstop

9:20 pm - 12:24 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 04mnonstop

$209American Airlines

Wed, Oct 14 - Wed, Oct 21

11:40 am - 12:59 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 19mnonstop

9:20 pm - 12:24 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 04mnonstop

$209American Airlines

Sat, Oct 17 - Tue, Oct 20

6:55 am - 11:24 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

5h 29m1 stop New York John F Kennedy Intl

8:04 pm - 11:59 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 55mnonstop

$217JetBlue

Thu, Oct 8 - Tue, Oct 13

9:59 am - 11:57 pmLAX Los Angeles-ORD Chicago O'Hare Intl

11h 58m1 stop Fort Lauderdale

7:00 am - 2:50 pmORD Chicago O'Hare Intl-LAX Los Angeles

9h 50m1 stop Fort Lauderdale

$217JetBlue

Wed, Oct 28 - Wed, Nov 4

Recent last minute flight deals from the United States to Illinois

Enter your travel dates to find the best prices.

10:16 pm - 12:45 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 29mnonstop

6:00 am - 8:41 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 41mnonstop

$212Frontier

Fri, Sep 18 - Mon, Oct 5

9:54 pm - 10:20 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

12h 26m1 stop Orlando

1:01 pm - 3:47 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 46mnonstop

$212Frontier

Sun, Sep 20 - Thu, Oct 1

9:30 am - 1:55 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

4h 25m1 stop Kirksville Cannon Memorial

6:00 am - 8:41 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 41mnonstop

$232Multiple Airlines

Thu, Sep 17 - Wed, Sep 30

9:30 am - 1:55 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

4h 25m1 stop Kirksville Cannon Memorial

6:30 am - 1:47 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

7h 17m1 stop Denver Intl

$247Multiple Airlines

Thu, Sep 17 - Wed, Sep 30

6:55 am - 8:48 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 53mnonstop

10:34 am - 1:59 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 25mnonstop

$254American Airlines

Thu, Sep 17 - Tue, Oct 6

6:59 am - 8:51 amLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 52mnonstop

6:29 pm - 9:57 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 28mnonstop

$254American Airlines

Thu, Sep 17 - Tue, Oct 6

7:15 am - 12:59 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

6h 44m1 stop Detroit Metropolitan Wayne County

6:00 pm - 9:40 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 40mnonstop

$264Delta

Thu, Sep 17 - Tue, Oct 6

9:30 am - 1:55 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

4h 25m1 stop Kirksville Cannon Memorial

2:40 pm - 7:15 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

4h 35m1 stop Kirksville Cannon Memorial

$279Contour

Thu, Sep 17 - Thu, Sep 24

9:30 am - 1:55 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

4h 25m1 stop Kirksville Cannon Memorial

2:40 pm - 7:15 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

4h 35m1 stop Kirksville Cannon Memorial

$279Contour

Thu, Sep 17 - Mon, Sep 21

5:30 pm - 7:15 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 45mnonstop

2:29 pm - 5:50 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 21mnonstop

$293Delta

Sat, Sep 19 - Wed, Sep 23

Recent direct flight deals from the United States to Illinois

Enter your travel dates to find the best prices.

9:58 am - 11:21 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 23mnonstop

6:00 am - 9:03 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 03mnonstop

$176Frontier

Thu, Oct 22 - Fri, Oct 23

9:58 am - 11:21 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 23mnonstop

6:00 am - 9:03 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 03mnonstop

$177Frontier

Thu, Oct 15 - Mon, Oct 19

9:09 am - 10:29 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

5:55 pm - 9:02 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 07mnonstop

$198United Airlines

Tue, Oct 6 - Fri, Oct 9

6:10 am - 7:29 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 19mnonstop

6:29 pm - 9:42 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 13mnonstop

$209United Airlines

Wed, Oct 28 - Sat, Oct 31

6:30 pm - 7:59 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 29mnonstop

9:20 pm - 12:24 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 04mnonstop

$209American Airlines

Wed, Oct 14 - Wed, Oct 21

11:40 am - 12:59 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 19mnonstop

9:20 pm - 12:24 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 04mnonstop

$209American Airlines

Sat, Oct 17 - Tue, Oct 20

5:52 pm - 11:47 pmLAX Los Angeles-ORD Chicago O'Hare Intl

3h 55mnonstop

7:29 am - 10:10 amORD Chicago O'Hare Intl-LAX Los Angeles

4h 41mnonstop

$217Delta

Fri, Oct 16 - Mon, Oct 26

5:52 pm - 11:47 pmLAX Los Angeles-ORD Chicago O'Hare Intl

3h 55mnonstop

7:20 am - 9:55 amORD Chicago O'Hare Intl-LAX Los Angeles

4h 35mnonstop

$217Delta

Fri, Oct 16 - Tue, Oct 20

5:12 pm - 7:14 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 02mnonstop

9:38 am - 1:06 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 28mnonstop

$226JetBlue

Fri, Oct 16 - Mon, Oct 19

4:59 pm - 7:00 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

8:24 pm - 12:08 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 44mnonstop

$226JetBlue

Fri, Oct 23 - Mon, Oct 26

Fly from

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Thu 10/22

9:58 am-11:21 am

Nonstop2h 23m

Chicago O'Hare Intl

Fri 10/23

6:00 am-9:03 am

Nonstop2h 03m

$176

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Thu 10/15

9:58 am-11:21 am

Nonstop2h 23m

Chicago O'Hare Intl

Mon 10/19

6:00 am-9:03 am

Nonstop2h 03m

$177

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Tue 10/6

9:09 am-10:29 am

Nonstop2h 20m

Chicago O'Hare Intl

Fri 10/9

5:55 pm-9:02 pm

Nonstop2h 07m

$198

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Fri 10/23

12:21 am-6:34 am

Nonstop4h 13m

Chicago O'Hare Intl

Tue 10/27

3:49 pm-11:31 pm

1 stop9h 42m

$198

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Mon 10/19

12:21 am-6:34 am

Nonstop4h 13m

Chicago O'Hare Intl

Tue 10/27

9:00 am-5:59 pm

1 stop10h 59m

$198

Washington, D.C.Chicago

DCA Washington, D.C. Reagan-National - ORD Chicago O'Hare Intl

DCAORD

Washington, D.C. Reagan-National

Thu 11/12

9:30 am-10:50 am

Nonstop2h 20m

Chicago O'Hare Intl

Sat 11/14

7:00 am-2:27 pm

1 stop6h 27m

$203

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Wed 10/14

6:30 pm-7:59 pm

Nonstop2h 29m

Chicago O'Hare Intl

Wed 10/21

9:20 pm-12:24 am

Nonstop2h 04m

$209

Quickest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sat 10/17

11:40 am-12:59 pm

Nonstop2h 19m

Chicago O'Hare Intl

Tue 10/20

9:20 pm-12:24 am

Nonstop2h 04m

$209

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Thu 10/8

6:55 am-11:24 am

1 stop5h 29m

Chicago O'Hare Intl

Tue 10/13

8:04 pm-11:59 pm

Nonstop2h 55m

$217

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Wed 10/28

9:59 am-11:57 pm

1 stop11h 58m

Chicago O'Hare Intl

Wed 11/4

7:00 am-2:50 pm

1 stop9h 50m

$217

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Illinois flights insights and trends

Explore insights for your Illinois flight to craft the best travel plan

Prices

Airlines

Other information

What is the cheapest flight I can find to Illinois?

Flights to Illinois vary based on month, airline, when you book, where you are departing from and many more variables, but on average momondo users can expect to spend about $1,074/pp. The absolute cheapest flight to Illinois is $39/pp

See prices from:

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from United States to Illinois is on a Wednesday when prices can be found for as low as $406. Flights from United States to Illinois on a Sunday will generally be more expensive and average around $501. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Cheapest flights to cities in Illinois

Click on the cities below to find out when it's cheapest to fly to Illinois from United States

Chicago

Find flights to Chicago

Cheap Illinois flight deals and tips

Summary info about Illinois flight prices, duration and airlines

Best One-Way Price	$83
Best Round-Trip Price	$176
Fastest flight time	2h 23m
Popular in	December

The best one-way flight price to Illinois from United States in the last 5 days is $83 (Dallas/Fort Worth to Chicago O'Hare Intl).

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The best round-trip flight price to Illinois from United States in the last 5 days is $176 (Baltimore/Washington to Chicago O'Hare Intl).

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The fastest flight to Illinois from United States takes 2h 23m (Dallas/Fort Worth to Chicago Midway).

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December has the highest demand for flights to Illinois, with a 18% price increase on average.

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Frequently asked questions about flying to Illinois

What is the best airport to fly into to visit Chicago?

Chicago is about 99% more popular to visit than any other city in Illinois, according to momondo users. When visiting Chicago, it is recommended to fly into Chicago O'Hare Intl Airport, where you can typically get the cheapest prices and the most convenient travel options into the city.

I plan on visiting Magnificent Mile. Which airport is the quickest drive?

The closest airport to Magnificent Mile is Chicago O'Hare Intl Airport, and would make for the quickest drive. For those interested in a secondary airport to fly into, consider looking at flights heading to Chicago Midway Airport.

What are the most popular landmarks in Illinois?

Many visitors who travel to Illinois find themselves making a stop at popular landmarks such as Magnificent Mile, Grant Park, and River North.

What is the weather like in Illinois?

Temperatures in Illinois can vary between 23 °F and 73.4 °F based on the time of year. Typically, the coldest month in Illinois will be January, and the warmest month will be July. It is also worth noting that those looking to avoid rain and/or snow should consider traveling to Illinois in January, February, and December, as that is when precipitation is least likely.

What airlines fly to Illinois?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Illinois according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 10 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How much are flights to Illinois?

The cheapest flight to Illinois recently found on momondo was $39. If you’re unable to find a flight deal this cheap, keep in mind that anything less than $744 is considered a good price for flights to Illinois. $1,072 is the average cost to fly to Illinois, while $33,205 is the most expensive.

What is the best day of the week to fly to Illinois?

Flying to Illinois on a Wednesday or Thursday is your best option since this is when flight prices tend to be at their lowest for the week. The most expensive day of the week to fly to Illinois is on a Sunday.

Where is it cheapest to fly into Illinois?

If you're headed to Illinois, consider flying into Chicago O'Hare Intl airport in Chicago for the best deals, with an average airfare of $39. Alternatively, Belleville airport in Belleville is a close second for cheapest flights to Illinois with an average airfare of $44.

When did momondo last update prices for flights to Illinois?

Prices for flights to Illinois are updated daily.

How many operators does momondo search for flights to Illinois?

As of September 2026, there are 59 operators available to choose from for flights to Illinois.

How old do you have to be to fly to Illinois?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights to Illinois with flexible booking policies on momondo?

Yes. All flights to Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights to Illinois?

Once all potential Illinois flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.