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 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 27m.

$95 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

American Airlines

Oct 28

DCA

6h 33m

1 stop

ORD

Oct 29

ORD

5h 28m

1 stop

DCA

$180

Frontier

Sep 22

IAD

11h 33m

1 stop

ORD

Sep 30

ORD

8h 34m

1 stop

IAD

$180

Frontier

Sep 29

BOS

6h 31m

1 stop

ORD

Oct 3

ORD

18h 08m

1 stop

BOS

$184

Frontier

Oct 1

BOS

12h 42m

1 stop

ORD

Oct 3

ORD

18h 08m

1 stop

BOS

$188

Frontier

Sep 22

IAD

12h 47m

1 stop

ORD

Sep 23

ORD

8h 34m

1 stop

IAD

$190

Frontier

Sep 22

IAD

11h 33m

1 stop

ORD

Sep 29

ORD

8h 34m

1 stop

IAD

$191

Frontier

Oct 1

BOS

12h 42m

1 stop

ORD

Oct 3

ORD

18h 08m

1 stop

BOS

$193

Frontier

Sep 29

IAD

24h 38m

1 stop

ORD

Oct 1

ORD

5h 52m

1 stop

IAD

$194

Frontier

Oct 1

BOS

12h 42m

1 stop

ORD

Oct 3

ORD

18h 08m

1 stop

BOS

$194

Frontier

Sep 30

IAD

11h 33m

1 stop

ORD

Oct 7

ORD

11h 58m

1 stop

IAD

$195

Frontier

Oct 27

IAD

5h 46m

1 stop

ORD

Nov 3

ORD

23h 30m

1 stop

IAD

$196

Frontier

Oct 16

BOS

8h 15m

1 stop

ORD

Oct 23

ORD

13h 51m

1 stop

BOS

$196

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

$115

Allegiant Air

Oct 29

DEN

1h 59m

PIA

Nov 1

PIA

2h 20m

DEN

$126

Allegiant Air

Sep 24

DEN

2h 03m

PIA

Sep 27

PIA

2h 20m

DEN

$207

Multiple Airlines

Oct 28

DEN

20h 26m

2 stops

PIA

Nov 1

PIA

2h 20m

DEN

$216

Multiple Airlines

Oct 27

DEN

21h 21m

2 stops

PIA

Nov 1

PIA

2h 20m

DEN

$224

Multiple Airlines

Oct 28

DEN

20h 27m

1 stop

PIA

Nov 1

PIA

2h 20m

DEN

$225

Multiple Airlines

Oct 29

DEN

12h 04m

1 stop

PIA

Nov 1

PIA

2h 20m

DEN

$227

Multiple Airlines

Oct 29

DEN

12h 04m

1 stop

PIA

Nov 1

PIA

2h 20m

DEN

$239

Allegiant Air

Oct 8

DEN

1h 59m

PIA

Oct 25

PIA

2h 20m

DEN

$254

Multiple Airlines

Oct 29

DEN

1h 59m

PIA

Nov 1

PIA

38h 05m

2 stops

DEN

$260

Allegiant Air

Oct 1

DEN

1h 59m

PIA

Oct 1

PIA

2h 20m

DEN

$270

Multiple Airlines

Oct 28

PHX

20h 33m

1 stop

PIA

Nov 1

PIA

23h 53m

1 stop

PHX

$270

Flights to Moline

Search all flight deals to Moline

American Airlines

Oct 31

DCA

6h 38m

1 stop

MLI

Nov 4

MLI

6h 59m

1 stop

DCA

$271

Delta

Oct 17

IAD

5h 18m

1 stop

MLI

Oct 21

MLI

6h 38m

1 stop

IAD

$271

Multiple Airlines

Sep 30

LAX

16h 55m

1 stop

MLI

Oct 4

MLI

27h 01m

1 stop

LAX

$273

Delta

Oct 2

HOU

5h 02m

1 stop

MLI

Oct 14

MLI

5h 59m

1 stop

HOU

$286

Delta

Oct 31

BWI

5h 55m

1 stop

MLI

Nov 4

MLI

6h 06m

1 stop

BWI

$295

American Airlines

Oct 8

DCA

5h 51m

1 stop

MLI

Oct 10

MLI

5h 56m

1 stop

DCA

$295

Delta

Sep 30

IAD

5h 13m

1 stop

MLI

Oct 6

MLI

6h 38m

1 stop

IAD

$295

United Airlines

Oct 30

DEN

2h 22m

MLI

Nov 1

MLI

2h 42m

DEN

$299

American Airlines

Nov 1

DCA

7h 17m

1 stop

MLI

Nov 7

MLI

7h 39m

2 stops

DCA

$300

American Airlines

Nov 1

IAD

6h 50m

2 stops

MLI

Nov 7

MLI

5h 49m

1 stop

IAD

$300

American Airlines

Sep 16

HOU

5h 34m

1 stop

MLI

Jan 6

MLI

6h 05m

1 stop

HOU

$301

American Airlines

Nov 1

DCA

6h 50m

2 stops

MLI

Nov 7

MLI

7h 39m

2 stops

DCA

$305

Flights to Champaign

Search all flight deals to Champaign

American Airlines

Oct 7

PHL

5h 34m

1 stop

CMI

Oct 10

CMI

5h 47m

1 stop

PHL

$280

American Airlines

Dec 16

LGA

5h 07m

1 stop

CMI

Dec 22

CMI

5h 39m

1 stop

LGA

$280

American Airlines

Sep 29

EWR

7h 04m

1 stop

CMI

Oct 3

CMI

6h 30m

1 stop

EWR

$316

American Airlines

Sep 29

LGA

5h 53m

1 stop

CMI

Oct 3

CMI

4h 30m

1 stop

LGA

$316

American Airlines

Oct 21

PHL

7h 25m

1 stop

CMI

Oct 24

CMI

7h 37m

2 stops

PHL

$322

American Airlines

Dec 16

LGA

5h 40m

1 stop

CMI

Dec 22

CMI

6h 55m

2 stops

LGA

$322

American Airlines

Oct 3

EWR

7h 36m

1 stop

CMI

Oct 13

CMI

6h 30m

1 stop

EWR

$333

American Airlines

Sep 29

LGA

5h 57m

1 stop

CMI

Oct 3

CMI

5h 36m

1 stop

LGA

$344

American Airlines

Sep 29

EWR

7h 36m

1 stop

CMI

Oct 3

CMI

6h 30m

1 stop

EWR

$352

American Airlines

Sep 15

CLT

5h 38m

1 stop

CMI

Sep 19

CMI

4h 23m

1 stop

CLT

$352

American Airlines

Sep 15

PHL

6h 48m

1 stop

CMI

Sep 19

CMI

4h 52m

1 stop

PHL

$352

American Airlines

Sep 29

LGA

5h 53m

1 stop

CMI

Oct 3

CMI

4h 30m

1 stop

LGA

$352

Flights to Bloomington, Illinois

Search all flight deals to Bloomington, Illinois

Multiple Airlines

Oct 12

ATL

16h 08m

1 stop

BMI

Oct 16

BMI

18h 10m

1 stop

ATL

$231

Multiple Airlines

Oct 12

ATL

16h 08m

1 stop

BMI

Oct 15

BMI

10h 07m

1 stop

ATL

$261

Multiple Airlines

Oct 12

ATL

25h 42m

2 stops

BMI

Oct 16

BMI

18h 10m

1 stop

ATL

$301

Delta

Sep 22

EWR

5h 18m

1 stop

BMI

Sep 29

BMI

7h 53m

1 stop

EWR

$305

Delta

Oct 3

HOU

5h 18m

1 stop

BMI

Oct 10

BMI

6h 37m

1 stop

HOU

$319

American Airlines

Oct 30

CLT

6h 31m

1 stop

BMI

Nov 2

BMI

6h 18m

1 stop

CLT

$319

Delta

Sep 25

RIC

6h 24m

1 stop

BMI

Sep 28

BMI

7h 11m

1 stop

RIC

$319

Delta

Oct 2

ATL

1h 49m

BMI

Oct 5

BMI

1h 46m

ATL

$319

Delta

Oct 3

IAH

5h 25m

1 stop

BMI

Oct 10

BMI

4h 56m

1 stop

IAH

$319

Delta

Sep 22

EWR

5h 18m

1 stop

BMI

Sep 26

BMI

7h 53m

1 stop

EWR

$319

Delta

Sep 16

EWR

6h 18m

1 stop

BMI

Sep 30

BMI

6h 25m

1 stop

EWR

$320

American Airlines

Oct 30

CLT

6h 31m

1 stop

BMI

Nov 2

BMI

7h 30m

2 stops

CLT

$324

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.

7:50 am - 6:23 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

11h 33m1 stop Atlanta Hartsfield-Jackson

6:20 am - 5:18 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

9h 58m1 stop Atlanta Hartsfield-Jackson

$180Frontier

Wed, Sep 23 - Wed, Sep 30

11:12 am - 10:59 pmIAD Washington, D.C. Dulles Intl-ORD Chicago O'Hare Intl

12h 47m1 stop Orlando

6:00 am - 3:34 pmORD Chicago O'Hare Intl-IAD Washington, D.C. Dulles Intl

8h 34m1 stop Dallas/Fort Worth

$180Frontier

Tue, Sep 22 - Wed, Sep 23

5:27 pm - 11:00 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

6h 33m1 stop Charlotte Douglas

3:16 pm - 9:44 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

5h 28m1 stop Columbus

$180American Airlines

Wed, Oct 28 - Thu, Oct 29

5:00 pm - 7:01 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

8:24 pm - 12:09 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 45mnonstop

$199JetBlue

Thu, Sep 24 - Mon, Sep 28

5:00 pm - 7:01 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

8:24 pm - 12:09 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 45mnonstop

$207JetBlue

Wed, Sep 30 - Thu, Oct 1

12:12 pm - 2:18 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 06mnonstop

5:17 pm - 8:51 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 34mnonstop

$213American Airlines

Thu, Nov 5 - Thu, Nov 5

2:03 pm - 12:21 amLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

8h 18m1 stop Denver Intl

7:00 am - 1:47 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

8h 47m1 stop Seattle/Tacoma Intl

$213Multiple Airlines

Tue, Nov 3 - Wed, Nov 11

7:46 am - 9:00 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

2h 14mnonstop

6:00 am - 11:59 amORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

4h 59m1 stop Newark

$215United Airlines

Mon, Oct 19 - Sat, Oct 24

7:46 pm - 5:40 amLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

7h 54m1 stop Seattle/Tacoma Intl

6:30 am - 10:47 amORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

6h 17m1 stop Denver Intl

$216Multiple Airlines

Fri, Nov 6 - Mon, Nov 9

11:05 pm - 5:15 amLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 10mnonstop

2:40 pm - 5:20 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 40mnonstop

$217United Airlines

Sat, Oct 17 - Sat, Oct 31

Recent last minute flight deals from the United States to Illinois

Enter your travel dates to find the best prices.

1:17 pm - 4:00 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 43mnonstop

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

2h 46mnonstop

$194Frontier

Sun, Sep 6 - Fri, Sep 11

6:07 pm - 8:31 pmDFW Dallas/Fort Worth-MDW Chicago Midway

2h 24mnonstop

12:54 pm - 3:25 pmMDW Chicago Midway-DFW Dallas/Fort Worth

2h 31mnonstop

$195Frontier

Sun, Sep 6 - Fri, Sep 11

1:17 pm - 4:00 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 43mnonstop

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

4h 35m1 stop Kirksville Cannon Memorial

$222Multiple Airlines

Sun, Sep 6 - Thu, Sep 10

1:17 pm - 4:00 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 43mnonstop

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

4h 35m1 stop Kirksville Cannon Memorial

$223Multiple Airlines

Sun, Sep 6 - Wed, Sep 9

1:25 pm - 7:25 pmJFK New York John F Kennedy Intl-ORD Chicago O'Hare Intl

7h 00m1 stop Boston Logan Intl

10:59 am - 2:20 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 21mnonstop

$252JetBlue

Sun, Sep 6 - Wed, Sep 9

10:44 am - 5:05 pmLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 21mnonstop

6:00 am - 8:27 amORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 27mnonstop

$271United Airlines

Sun, Sep 6 - Sun, Oct 4

10:35 pm - 4:45 amLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 10mnonstop

6:00 am - 8:27 amORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 27mnonstop

$271United Airlines

Sat, Sep 5 - Sun, Oct 11

4:39 pm - 11:00 pmLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 21mnonstop

6:55 am - 9:25 amORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 30mnonstop

$271American Airlines

Sat, Sep 5 - Sun, Oct 4

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

2h 48mnonstop

10:59 am - 2:20 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 21mnonstop

$277JetBlue

Wed, Sep 9 - Wed, Sep 23

5:57 pm - 8:00 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

3h 03mnonstop

8:13 am - 11:29 amORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 16mnonstop

$286American Airlines

Wed, Sep 9 - Tue, Sep 22

Recent direct flight deals from the United States to Illinois

Enter your travel dates to find the best prices.

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

4h 13mnonstop

8:01 pm - 10:51 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 50mnonstop

$198Frontier

Thu, Oct 8 - Sat, Oct 17

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

4h 13mnonstop

8:01 pm - 10:51 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 50mnonstop

$198Frontier

Wed, Oct 7 - Tue, Oct 13

5:00 pm - 7:01 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

8:24 pm - 12:09 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 45mnonstop

$199JetBlue

Thu, Sep 24 - Mon, Sep 28

5:00 pm - 7:01 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 01mnonstop

8:24 pm - 12:09 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 45mnonstop

$207JetBlue

Wed, Sep 30 - Thu, Oct 1

12:12 pm - 2:18 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 06mnonstop

5:17 pm - 8:51 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 34mnonstop

$213American Airlines

Thu, Nov 5 - Thu, Nov 5

1:41 pm - 8:04 pmLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 23mnonstop

8:42 am - 11:26 amORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 44mnonstop

$216American Airlines

Mon, Nov 2 - Thu, Nov 5

11:05 pm - 5:15 amLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 10mnonstop

2:40 pm - 5:20 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 40mnonstop

$217United Airlines

Sat, Oct 17 - Sat, Oct 31

2:21 pm - 8:37 pmLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 16mnonstop

5:52 pm - 8:29 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 37mnonstop

$217United Airlines

Wed, Nov 4 - Mon, Nov 9

11:45 am - 5:50 pmLAX Los Angeles Los Angeles-ORD Chicago O'Hare Intl

4h 05mnonstop

2:45 pm - 5:16 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 31mnonstop

$217Delta

Tue, Oct 27 - Wed, Oct 28

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

3h 55mnonstop

7:14 pm - 10:00 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

4h 46mnonstop

$217Delta

Wed, Oct 21 - Tue, Oct 27

Fly from

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Chicago

IAD Washington, D.C. Dulles Intl - ORD Chicago O'Hare Intl

IADORD

Washington, D.C. Dulles Intl

Wed 9/23

7:50 am-6:23 pm

1 stop11h 33m

Chicago O'Hare Intl

Wed 9/30

6:20 am-5:18 pm

1 stop9h 58m

$180

Washington, D.C.Chicago

IAD Washington, D.C. Dulles Intl - ORD Chicago O'Hare Intl

IADORD

Washington, D.C. Dulles Intl

Tue 9/22

11:12 am-10:59 pm

1 stop12h 47m

Chicago O'Hare Intl

Wed 9/23

6:00 am-3:34 pm

1 stop8h 34m

$180

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Wed 10/28

5:27 pm-11:00 pm

1 stop6h 33m

Chicago O'Hare Intl

Thu 10/29

3:16 pm-9:44 pm

1 stop5h 28m

$180

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Thu 9/24

5:00 pm-7:01 pm

Nonstop3h 01m

Chicago O'Hare Intl

Mon 9/28

8:24 pm-12:09 am

Nonstop2h 45m

$199

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Wed 9/30

5:00 pm-7:01 pm

Nonstop3h 01m

Chicago O'Hare Intl

Thu 10/1

8:24 pm-12:09 am

Nonstop2h 45m

$207

Quickest round-trip

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Thu 11/5

12:12 pm-2:18 pm

Nonstop3h 06m

Chicago O'Hare Intl

Thu 11/5

5:17 pm-8:51 pm

Nonstop2h 34m

$213

Los AngelesChicago

LAX Los Angeles Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles Los Angeles

Tue 11/3

2:03 pm-12:21 am

1 stop8h 18m

Chicago O'Hare Intl

Wed 11/11

7:00 am-1:47 pm

1 stop8h 47m

$213

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Mon 10/19

7:46 am-9:00 am

Nonstop2h 14m

Chicago O'Hare Intl

Sat 10/24

6:00 am-11:59 am

1 stop4h 59m

$215

Los AngelesChicago

LAX Los Angeles Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles Los Angeles

Fri 11/6

7:46 pm-5:40 am

1 stop7h 54m

Chicago O'Hare Intl

Mon 11/9

6:30 am-10:47 am

1 stop6h 17m

$216

Los AngelesChicago

LAX Los Angeles Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles Los Angeles

Sat 10/17

11:05 pm-5:15 am

Nonstop4h 10m

Chicago O'Hare Intl

Sat 10/31

2:40 pm-5:20 pm

Nonstop4h 40m

$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 $1,062/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 $403. Flights from United States to Illinois on a Sunday will generally be more expensive and average around $503. 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	$95
Best Round-Trip Price	$180
Fastest flight time	2h 23m
Popular in	May

The best one-way flight price to Illinois from United States in the last 5 days is $95 (Washington, D.C. Dulles Intl 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 $180 (Washington, D.C. Reagan-National to Chicago O'Hare Intl).

Search Deals

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

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May has the highest demand for flights to Illinois, with a 0% 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 11 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 $710 is considered a good price for flights to Illinois. $1,067 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 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 $31. Alternatively, Quincy Regional airport in Quincy is a close second for cheapest flights to Illinois with an average airfare of $47.

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 60 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.