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.

$94 Cheap Flights to Illinois in 2026

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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 15

BWI

2h 23m

ORD

Oct 18

ORD

2h 03m

BWI

$178

Frontier

Oct 8

BWI

2h 23m

ORD

Oct 11

ORD

2h 03m

BWI

$179

Frontier

Sep 29

IAD

11h 33m

1 stop

ORD

Sep 30

ORD

8h 34m

1 stop

IAD

$180

Frontier

Oct 20

BWI

6h 52m

1 stop

ORD

Oct 25

ORD

2h 03m

BWI

$182

Frontier

Nov 12

BWI

2h 30m

ORD

Nov 16

ORD

1h 57m

BWI

$183

Frontier

Nov 5

BWI

2h 30m

ORD

Nov 8

ORD

13h 39m

1 stop

BWI

$184

Frontier

Sep 25

BWI

2h 20m

ORD

Nov 5

ORD

1h 57m

BWI

$185

Frontier

Sep 26

BWI

2h 24m

ORD

Oct 3

ORD

2h 12m

BWI

$187

Frontier

Sep 28

IAD

22h 07m

1 stop

ORD

Sep 30

ORD

17h 37m

1 stop

IAD

$188

Frontier

Oct 9

BWI

2h 23m

ORD

Oct 11

ORD

2h 03m

BWI

$188

Frontier

Sep 26

BWI

2h 24m

ORD

Sep 27

ORD

2h 05m

BWI

$189

Frontier

Sep 26

BWI

2h 24m

ORD

Sep 29

ORD

9h 26m

1 stop

BWI

$190

Flights to Peoria, Illinois

Search all flight deals to Peoria, Illinois

Allegiant Air

Oct 15

DEN

1h 59m

PIA

Oct 29

PIA

2h 20m

DEN

$170

Allegiant Air

Oct 22

DEN

1h 59m

PIA

Oct 29

PIA

2h 20m

DEN

$185

Allegiant Air

Oct 15

DEN

1h 59m

PIA

Oct 25

PIA

2h 20m

DEN

$218

American Airlines

Jan 12

SEA

8h 45m

1 stop

PIA

Jan 16

PIA

9h 40m

1 stop

SEA

$281

American Airlines

Sep 29

AUS

5h 01m

1 stop

PIA

Oct 7

PIA

5h 06m

1 stop

AUS

$303

Allegiant Air

Sep 24

DEN

2h 03m

PIA

Sep 27

PIA

2h 20m

DEN

$306

United Airlines

Jan 12

SEA

6h 36m

1 stop

PIA

Jan 16

PIA

10h 56m

2 stops

SEA

$306

American Airlines

Sep 29

AUS

7h 36m

2 stops

PIA

Oct 7

PIA

5h 06m

1 stop

AUS

$308

United Airlines

Nov 11

DEN

2h 21m

PIA

Nov 15

PIA

6h 56m

1 stop

DEN

$309

Allegiant Air

Oct 1

DEN

1h 59m

PIA

Oct 4

PIA

2h 20m

DEN

$312

American Airlines

Oct 29

RDU

5h 43m

1 stop

PIA

Nov 1

PIA

5h 14m

1 stop

RDU

$319

American Airlines

Oct 1

DEN

5h 31m

1 stop

PIA

Oct 4

PIA

7h 49m

1 stop

DEN

$319

Flights to Moline

Search all flight deals to Moline

American Airlines

Oct 17

DCA

5h 51m

1 stop

MLI

Oct 21

MLI

5h 56m

1 stop

DCA

$271

American Airlines

Oct 31

IAD

7h 39m

1 stop

MLI

Nov 4

MLI

7h 49m

1 stop

IAD

$271

American Airlines

Nov 7

DCA

7h 09m

1 stop

MLI

Nov 14

MLI

7h 39m

2 stops

DCA

$276

Multiple Airlines

Nov 4

LAX

16h 38m

1 stop

MLI

Nov 8

MLI

19h 10m

1 stop

LAX

$277

Delta

Oct 17

IAD

5h 18m

1 stop

MLI

Oct 21

MLI

6h 38m

1 stop

IAD

$291

Multiple Airlines

Nov 4

LAX

16h 38m

1 stop

MLI

Nov 8

MLI

33h 50m

2 stops

LAX

$293

American Airlines

Oct 6

MCO

5h 56m

1 stop

MLI

Oct 13

MLI

6h 20m

1 stop

MCO

$295

American Airlines

Oct 31

BWI

4h 34m

1 stop

MLI

Nov 4

MLI

5h 33m

1 stop

BWI

$295

American Airlines

Oct 8

DCA

5h 51m

1 stop

MLI

Oct 10

MLI

5h 56m

1 stop

DCA

$295

American Airlines

Nov 1

IAD

7h 22m

1 stop

MLI

Nov 7

MLI

5h 49m

1 stop

IAD

$295

American Airlines

Oct 6

MCO

8h 30m

2 stops

MLI

Oct 13

MLI

6h 20m

1 stop

MCO

$300

American Airlines

Nov 1

DCA

6h 50m

2 stops

MLI

Nov 7

MLI

5h 58m

1 stop

DCA

$300

Flights to Champaign

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American Airlines

Oct 7

EWR

7h 05m

1 stop

CMI

Oct 10

CMI

6h 24m

1 stop

EWR

$280

American Airlines

Oct 7

LGA

7h 07m

1 stop

CMI

Oct 10

CMI

4h 52m

1 stop

LGA

$280

American Airlines

Oct 10

EWR

4h 45m

1 stop

CMI

Oct 17

CMI

6h 24m

1 stop

EWR

$281

American Airlines

Oct 6

EWR

7h 05m

1 stop

CMI

Oct 10

CMI

4h 24m

1 stop

EWR

$316

American Airlines

Oct 6

LGA

5h 16m

1 stop

CMI

Oct 10

CMI

4h 52m

1 stop

LGA

$316

American Airlines

Oct 5

LGA

6h 07m

1 stop

CMI

Oct 10

CMI

4h 52m

1 stop

LGA

$344

American Airlines

Oct 1

SEA

7h 41m

1 stop

CMI

Oct 4

CMI

7h 30m

1 stop

SEA

$348

American Airlines

Oct 5

LGA

7h 58m

2 stops

CMI

Oct 10

CMI

4h 52m

1 stop

LGA

$350

American Airlines

Oct 17

EWR

6h 13m

1 stop

CMI

Oct 19

CMI

7h 50m

1 stop

EWR

$355

American Airlines

Oct 16

BOS

7h 14m

1 stop

CMI

Oct 17

CMI

6h 31m

1 stop

BOS

$355

American Airlines

Oct 16

BOS

6h 08m

1 stop

CMI

Oct 17

CMI

9h 25m

2 stops

BOS

$361

American Airlines

Oct 10

LGA

4h 47m

1 stop

CMI

Oct 17

CMI

6h 19m

1 stop

LGA

$373

Flights to Bloomington, Illinois

Search all flight deals to Bloomington, Illinois

Multiple Airlines

Oct 13

ATL

14h 55m

1 stop

BMI

Oct 20

BMI

20h 45m

1 stop

ATL

$182

Multiple Airlines

Oct 13

ATL

19h 05m

1 stop

BMI

Oct 20

BMI

29h 42m

2 stops

ATL

$227

Delta

Oct 8

ATL

1h 51m

BMI

Oct 15

BMI

1h 52m

ATL

$299

Multiple Airlines

Oct 14

DFW

21h 30m

1 stop

BMI

Oct 18

BMI

13h 46m

1 stop

DFW

$300

American Airlines

Oct 9

TYS

6h 04m

1 stop

BMI

Oct 13

BMI

11h 33m

2 stops

TYS

$304

American Airlines

Oct 30

CLT

6h 31m

1 stop

BMI

Nov 2

BMI

6h 18m

1 stop

CLT

$319

Delta

Dec 22

ATL

1h 54m

BMI

Dec 25

BMI

1h 48m

ATL

$319

Delta

Oct 9

TYS

5h 14m

1 stop

BMI

Oct 13

BMI

4h 56m

1 stop

TYS

$319

American Airlines

Oct 2

DCA

6h 44m

1 stop

BMI

Oct 4

BMI

5h 52m

1 stop

DCA

$319

American Airlines

Oct 30

CLT

6h 31m

1 stop

BMI

Nov 2

BMI

7h 30m

2 stops

CLT

$324

American Airlines

Oct 3

DCA

7h 29m

2 stops

BMI

Oct 4

BMI

4h 50m

1 stop

DCA

$324

American Airlines

Nov 2

TPA

5h 37m

1 stop

BMI

Nov 7

BMI

7h 06m

1 stop

TPA

$329

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.

5:50 pm - 7:14 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 24mnonstop

6:15 am - 12:55 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

17h 40m1 stop Orlando

$178Frontier

Thu, Dec 3 - Sun, Dec 6

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

$178Frontier

Thu, Oct 15 - Sun, Oct 18

12:34 pm - 1:54 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

7:45 am - 10:49 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 04mnonstop

$190United Airlines

Sun, Nov 1 - Tue, Nov 3

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

2h 20mnonstop

3:00 pm - 6:13 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 13mnonstop

$194United Airlines

Sun, Oct 4 - Tue, Oct 6

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

4h 13mnonstop

5:46 pm - 11:58 pmORD Chicago O'Hare Intl-LAX Los Angeles

8h 12m1 stop Seattle/Tacoma Intl

$198Multiple Airlines

Sat, Oct 10 - Fri, Oct 16

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

Sat, Oct 10 - Wed, Oct 14

4:11 pm - 10:10 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

6h 59m1 stop New York John F Kennedy Intl

6:10 am - 2:29 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

7h 19m1 stop New York John F Kennedy Intl

$210JetBlue

Sat, Oct 17 - Tue, Oct 20

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

3h 02mnonstop

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

2h 55mnonstop

$213JetBlue

Sat, Oct 10 - Tue, Oct 13

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

3h 55mnonstop

6:59 pm - 9:45 pmORD Chicago O'Hare Intl-LAX Los Angeles

4h 46mnonstop

$217Delta

Tue, Oct 13 - Fri, Oct 16

5:59 pm - 11:55 pmLAX Los Angeles-ORD Chicago O'Hare Intl

3h 56mnonstop

6:28 pm - 9:05 pmORD Chicago O'Hare Intl-LAX Los Angeles

4h 37mnonstop

$217Delta

Fri, Nov 13 - Sun, Nov 15

Recent last minute flight deals from the United States to Illinois

Enter your travel dates to find the best prices.

2:48 pm - 12:23 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

9h 35m1 stop Denver Intl

8:30 am - 11:17 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 47mnonstop

$206Frontier

Mon, Sep 14 - Sat, Oct 10

2:48 pm - 12:23 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

9h 35m1 stop Denver Intl

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

2h 41mnonstop

$216Frontier

Mon, Sep 14 - Mon, Oct 5

9:15 am - 11:52 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 37mnonstop

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

4h 35m1 stop Kirksville Cannon Memorial

$238Multiple Airlines

Wed, Sep 9 - Thu, Sep 10

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

4h 25m1 stop Kirksville Cannon Memorial

6:20 am - 12:12 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

5h 52m1 stop Atlanta Hartsfield-Jackson

$260Multiple Airlines

Mon, Sep 14 - Wed, Sep 30

7:20 am - 9:00 amLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 40mnonstop

3:00 pm - 6:25 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 25mnonstop

$277United Airlines

Thu, Sep 10 - Mon, Sep 14

8:27 pm - 10:11 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 44mnonstop

4:00 pm - 7:25 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 25mnonstop

$277United Airlines

Sat, Sep 12 - Sun, Sep 13

8:10 am - 9:58 amJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

7:00 am - 10:27 amORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 27mnonstop

$277JetBlue

Thu, Sep 10 - Mon, Sep 28

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

Sat, Sep 12 - Mon, Sep 14

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

Mon, Sep 14 - Mon, Sep 21

5:15 am - 9:58 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

5h 43m1 stop New York John F Kennedy Intl

10:59 am - 5:21 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

5h 22m1 stop New York John F Kennedy Intl

$289JetBlue

Sat, Sep 12 - Wed, Sep 16

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

$178Frontier

Thu, Oct 15 - Sun, Oct 18

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

$178Frontier

Thu, Oct 22 - Sun, Oct 25

12:34 pm - 1:54 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

7:45 am - 10:49 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 04mnonstop

$190United Airlines

Sun, Nov 1 - Tue, Nov 3

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

2h 20mnonstop

3:00 pm - 6:13 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 13mnonstop

$194United Airlines

Sun, Oct 4 - Tue, Oct 6

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

3h 02mnonstop

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

2h 55mnonstop

$213JetBlue

Sat, Oct 10 - Tue, Oct 13

9:59 am - 11:59 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 00mnonstop

8:15 pm - 11:59 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 44mnonstop

$215JetBlue

Thu, Nov 5 - Tue, Nov 10

5:45 pm - 8:05 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 20mnonstop

6:50 am - 10:29 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 39mnonstop

$217American Airlines

Thu, Sep 24 - Tue, Sep 29

6:22 pm - 12:30 amLAX Los Angeles-ORD Chicago O'Hare Intl

4h 08mnonstop

9:04 pm - 11:47 pmORD Chicago O'Hare Intl-LAX Los Angeles

4h 43mnonstop

$217American Airlines

Fri, Oct 30 - Mon, Nov 2

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

3h 55mnonstop

6:59 pm - 9:45 pmORD Chicago O'Hare Intl-LAX Los Angeles

4h 46mnonstop

$217Delta

Tue, Oct 13 - Fri, Oct 16

5:59 pm - 11:55 pmLAX Los Angeles-ORD Chicago O'Hare Intl

3h 56mnonstop

6:28 pm - 9:05 pmORD Chicago O'Hare Intl-LAX Los Angeles

4h 37mnonstop

$217Delta

Fri, Nov 13 - Sun, Nov 15

Fly from

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Thu 12/3

5:50 pm-7:14 pm

Nonstop2h 24m

Chicago O'Hare Intl

Sun 12/6

6:15 am-12:55 am

1 stop17h 40m

$178

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

Sun 10/18

6:00 am-9:03 am

Nonstop2h 03m

$178

Quickest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sun 11/1

12:34 pm-1:54 pm

Nonstop2h 20m

Chicago O'Hare Intl

Tue 11/3

7:45 am-10:49 am

Nonstop2h 04m

$190

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sun 10/4

9:09 am-10:29 am

Nonstop2h 20m

Chicago O'Hare Intl

Tue 10/6

3:00 pm-6:13 pm

Nonstop2h 13m

$194

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Sat 10/10

12:21 am-6:34 am

Nonstop4h 13m

Chicago O'Hare Intl

Fri 10/16

5:46 pm-11:58 pm

1 stop8h 12m

$198

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Sat 10/10

12:21 am-6:34 am

Nonstop4h 13m

Chicago O'Hare Intl

Wed 10/14

9:00 am-5:59 pm

1 stop10h 59m

$198

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Sat 10/17

4:11 pm-10:10 pm

1 stop6h 59m

Chicago O'Hare Intl

Tue 10/20

6:10 am-2:29 pm

1 stop7h 19m

$210

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Sat 10/10

5:12 pm-7:14 pm

Nonstop3h 02m

Chicago O'Hare Intl

Tue 10/13

8:04 pm-11:59 pm

Nonstop2h 55m

$213

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Tue 10/13

5:52 pm-11:47 pm

Nonstop3h 55m

Chicago O'Hare Intl

Fri 10/16

6:59 pm-9:45 pm

Nonstop4h 46m

$217

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Fri 11/13

5:59 pm-11:55 pm

Nonstop3h 56m

Chicago O'Hare Intl

Sun 11/15

6:28 pm-9:05 pm

Nonstop4h 37m

$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 $1,064/pp. The absolute cheapest flight to Illinois is $31/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 $405. Flights from United States to Illinois on a Sunday will generally be more expensive and average around $502. 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	$93
Best Round-Trip Price	$178
Fastest flight time	2h 23m

The best one-way flight price to Illinois from United States in the last 5 days is $93 (Baltimore/Washington 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 $178 (Baltimore/Washington to Chicago O'Hare Intl).

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The fastest flight to Illinois from United States takes 2h 23m (Baltimore/Washington to Chicago O'Hare Intl).

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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 $31. If you’re unable to find a flight deal this cheap, keep in mind that anything less than $750 is considered a good price for flights to Illinois. $1,080 is the average cost to fly to Illinois, while $48,977 is the most expensive.

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

Flying to Illinois on a Wednesday or Tuesday 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 $31. 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.