What is the cheapest airline that flies from North America to Illinois?

Frontier, United Airlines, and Delta are the most popular carriers operating from North America to Illinois

How many flights depart from North America to Illinois on average per day?

As of September 2026, there are 508 flights per day flying from North America to Illinois. The most common time of day flights depart is 10:00AM, with 41% of flights taking off at noon.

What airlines fly to Illinois?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Illinois from North America according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 12 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from North America to Illinois on average per week?

3,561 flights are operational weekly from North America to Illinois as of September 2026. The most popular departure day for this route is Sun, with 18% of flights per week taking off on this day.

When did momondo last update prices for flights from North America to Illinois?

Prices for flights from North America to Illinois refresh daily.

How many operators does momondo search for flights from North America to Illinois?

There are 8 operators available for flights from North America to Illinois as of September 2026.

How old do you have to be to fly from North America to Illinois?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from North America to Illinois.

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

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$89 Cheap Flights from North America to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from North America to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:55 pm - 3:20 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

26h 25m1 stop Fort Lauderdale

6:00 am - 2:20 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

31h 20m2 stops Atlanta Hartsfield-Jackson Orlando

$177Frontier

Tue, Oct 6 - Tue, Oct 13

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

2h 23mnonstop

6:00 am - 6:30 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

11h 30m1 stop Atlanta Hartsfield-Jackson

$177Frontier

Fri, Oct 9 - Sat, Oct 10

1:25 pm - 6:20 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

5h 55m1 stop New York LaGuardia

10:30 am - 4:37 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

5h 07m1 stop New York John F Kennedy Intl

$179Delta

Tue, Oct 20 - Sat, Oct 24

7:40 pm - 11:54 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

5h 14m1 stop Atlanta Hartsfield-Jackson

10:06 am - 3:57 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

4h 51m1 stop New York LaGuardia

$179Delta

Tue, Nov 10 - Wed, Nov 11

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

4h 13mnonstop

9:00 am - 5:03 pmORD Chicago O'Hare Intl-LAX Los Angeles Los Angeles

10h 03m1 stop Seattle/Tacoma Intl

$199Multiple Airlines

Fri, Oct 16 - Sat, Oct 24

10:05 am - 3:13 pmDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

6h 08m1 stop Newark

7:00 am - 9:56 amORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

1h 56mnonstop

$200United Airlines

Thu, Nov 12 - Sat, Nov 14

5:30 am - 10:38 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

5h 08m1 stop Minneapolis St Paul

12:37 pm - 3:20 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 43mnonstop

$201Multiple Airlines

Mon, Oct 12 - Wed, Oct 21

11:55 am - 1:15 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

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

2h 13mnonstop

$205United Airlines

Tue, Oct 6 - Wed, Oct 7

11:48 am - 1:18 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 30mnonstop

2:50 pm - 5:58 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 08mnonstop

$209American Airlines

Wed, Nov 4 - Sat, Nov 7

7:12 am - 8:50 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 38mnonstop

2:44 pm - 5:44 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 00mnonstop

$209American Airlines

Sat, Jan 23 - Wed, Jan 27

Cheap last minute flights

Enter your travel dates to find the best prices.

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

4h 25m1 stop Kirksville Cannon Memorial

12:37 pm - 3:20 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 43mnonstop

$220Multiple Airlines

Fri, Sep 25 - Tue, Oct 20

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

4h 25m1 stop Kirksville Cannon Memorial

7:44 pm - 7:00 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

11h 16m1 stop Atlanta Hartsfield-Jackson

$231Multiple Airlines

Fri, Sep 25 - Tue, Oct 20

5:35 pm - 6:55 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

10:49 am - 1:58 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 09mnonstop

$239United Airlines

Tue, Sep 22 - Fri, Sep 25

5:03 pm - 6:27 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 24mnonstop

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

2h 03mnonstop

$243Frontier

Sat, Sep 26 - Mon, Oct 26

5:03 pm - 6:27 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 24mnonstop

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

2h 03mnonstop

$243Frontier

Sat, Sep 26 - Thu, Oct 22

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

2h 48mnonstop

12:38 pm - 4:00 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

2h 22mnonstop

$245JetBlue

Wed, Sep 23 - Wed, Oct 21

9:10 am - 10:54 amLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 44mnonstop

9:00 am - 12:23 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 23mnonstop

$254United Airlines

Wed, Sep 23 - Wed, Oct 21

5:23 am - 7:13 amEWR Newark-ORD Chicago O'Hare Intl

2h 50mnonstop

6:43 am - 10:06 amORD Chicago O'Hare Intl-EWR Newark

2h 23mnonstop

$254American Airlines

Thu, Sep 24 - Tue, Oct 6

2:16 pm - 4:05 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 49mnonstop

10:10 am - 1:31 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 21mnonstop

$254American Airlines

Thu, Sep 24 - Tue, Oct 6

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

2h 48mnonstop

1:00 pm - 9:29 pmORD Chicago O'Hare Intl-JFK New York John F Kennedy Intl

7h 29m1 stop Boston Logan Intl

$254JetBlue

Wed, Sep 23 - Wed, Oct 28

Cheap direct flights

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 - 8:57 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

1h 57mnonstop

$177Frontier

Fri, Oct 23 - Thu, Oct 29

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 8 - Mon, Oct 12

11:55 am - 1:15 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

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

2h 13mnonstop

$205United Airlines

Tue, Oct 6 - Wed, Oct 7

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

2h 20mnonstop

7:30 am - 10:30 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 00mnonstop

$209United Airlines

Tue, Oct 6 - Tue, Oct 13

11:48 am - 1:18 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 30mnonstop

2:50 pm - 5:58 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 08mnonstop

$209American Airlines

Wed, Nov 4 - Sat, Nov 7

7:12 am - 8:50 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 38mnonstop

2:44 pm - 5:44 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 00mnonstop

$209American Airlines

Sat, Jan 23 - Wed, Jan 27

1:35 pm - 3:26 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 51mnonstop

3:05 pm - 6:52 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 47mnonstop

$216Delta

Sat, Oct 3 - Mon, Oct 5

7:30 am - 9:24 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 54mnonstop

7:25 am - 11:00 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 35mnonstop

$216Delta

Thu, Oct 15 - Mon, Oct 19

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

3h 01mnonstop

8:24 pm - 12:23 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 59mnonstop

$216JetBlue

Sat, Oct 3 - Mon, Oct 5

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

3h 01mnonstop

8:24 pm - 12:23 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 59mnonstop

$217JetBlue

Sat, Oct 3 - Mon, Oct 5

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Delta flights from North America to Illinois

Our best Delta deals on North America to Illinois flight tickets

Delta

Nov 10

DCA9:40 amWashington, D.C. Reagan-National

5h 19m

1 stop

ORD1:59 pmChicago O'Hare Intl

Nov 11

ORD7:05 amChicago O'Hare Intl

3h 24m

1 stop

DCA11:29 amWashington, D.C. Reagan-National

$179

Delta

Oct 13

DCA1:25 pmWashington, D.C. Reagan-National

5h 55m

1 stop

ORD6:20 pmChicago O'Hare Intl

Oct 17

ORD10:05 amChicago O'Hare Intl

7h 31m

1 stop

DCA6:36 pmWashington, D.C. Reagan-National

$199

Delta

Oct 24

IAD6:05 amWashington, D.C. Dulles Intl

5h 24m

1 stop

ORD10:29 amChicago O'Hare Intl

Oct 30

ORD5:29 pmChicago O'Hare Intl

4h 47m

1 stop

IAD11:16 pmWashington, D.C. Dulles Intl

$219

American Airlines flights from North America to Illinois

Our best American Airlines deals on North America to Illinois flight tickets

American Airlines

Oct 15

BOS3:31 pmBoston Logan Intl

3h 05m

ORD5:36 pmChicago O'Hare Intl

Oct 19

ORD8:30 amChicago O'Hare Intl

2h 37m

BOS12:07 pmBoston Logan Intl

$217

American Airlines

Nov 3

LAX11:37 amLos Angeles Los Angeles

4h 22m

ORD5:59 pmChicago O'Hare Intl

Nov 10

ORD10:32 amChicago O'Hare Intl

4h 39m

LAX1:11 pmLos Angeles Los Angeles

$218

American Airlines

Nov 14

DCA12:53 pmWashington, D.C. Reagan-National

2h 22m

ORD2:15 pmChicago O'Hare Intl

Nov 19

ORD7:50 amChicago O'Hare Intl

2h 02m

DCA10:52 amWashington, D.C. Reagan-National

$226

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Tue 10/6

1:55 pm-3:20 pm

1 stop26h 25m

Chicago O'Hare Intl

Tue 10/13

6:00 am-2:20 pm

2 stops31h 20m

$177

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Fri 10/9

9:58 am-11:21 am

Nonstop2h 23m

Chicago O'Hare Intl

Sat 10/10

6:00 am-6:30 pm

1 stop11h 30m

$177

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Tue 10/20

1:25 pm-6:20 pm

1 stop5h 55m

Chicago O'Hare Intl

Sat 10/24

10:30 am-4:37 pm

1 stop5h 07m

$179

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Tue 11/10

7:40 pm-11:54 pm

1 stop5h 14m

Chicago O'Hare Intl

Wed 11/11

10:06 am-3:57 pm

1 stop4h 51m

$179

Los AngelesChicago

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

LAXORD

Los Angeles Los Angeles

Fri 10/16

12:21 am-6:34 am

Nonstop4h 13m

Chicago O'Hare Intl

Sat 10/24

9:00 am-5:03 pm

1 stop10h 03m

$199

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Thu 11/12

10:05 am-3:13 pm

1 stop6h 08m

Chicago O'Hare Intl

Sat 11/14

7:00 am-9:56 am

Nonstop1h 56m

$200

DallasChicago

DFW Dallas/Fort Worth - ORD Chicago O'Hare Intl

DFWORD

Dallas/Fort Worth

Mon 10/12

5:30 am-10:38 am

1 stop5h 08m

Chicago O'Hare Intl

Wed 10/21

12:37 pm-3:20 pm

Nonstop2h 43m

$201

Quickest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Tue 10/6

11:55 am-1:15 pm

Nonstop2h 20m

Chicago O'Hare Intl

Wed 10/7

3:00 pm-6:13 pm

Nonstop2h 13m

$205

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Wed 11/4

11:48 am-1:18 pm

Nonstop2h 30m

Chicago O'Hare Intl

Sat 11/7

2:50 pm-5:58 pm

Nonstop2h 08m

$209

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sat 1/23

7:12 am-8:50 am

Nonstop2h 38m

Chicago O'Hare Intl

Wed 1/27

2:44 pm-5:44 pm

Nonstop2h 00m

$209

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from North America to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from North America is in January. Flight prices, which tend to average around $265, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $275.

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

The cheapest day to depart from North America to Illinois is on a Wednesday when prices can be found for as low as $405. Flights from North America to Illinois on a Sunday will generally be more expensive and average around $505. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from North America to Illinois during this time can be as low as $369. Flights at noon are often more expensive with an average ticket price of $521.

What is the cheapest North America to Illinois flight route?

Fly from Newark to Chicago Midway for the best North America - Illinois flight prices

How far in advance should I book a flight from North America to Illinois?

You are more likely to see cheaper flights to Illinois from North America when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $244 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from North America for as low as $177 on momondo.

What cabin class options are available on North America to Illinois flights?

There are 4 cabin classes available to choose from on North America to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on North America to Illinois flights?

No. A direct flight is the cheapest option for a flight between North America to Illinois.

Cheap North America to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from North America to Illinois

Best Price Found	$89
Fastest flight time	0h 50m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from North America in the past 72 hours is $89. The best round-trip flight deal from North America to Illinois found on momondo in the last 72 hours is $177.

The fastest flight from North America to Illinois takes 0h 50m

Direct flights go from North America to Illinois every day.

There are 98 airports in Illinois. From North America there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from North America to Illinois

When did momondo last update prices for flights from North America to Illinois?
Prices for flights from North America to Illinois refresh daily.
How many operators does momondo search for flights from North America to Illinois?
There are 8 operators available for flights from North America to Illinois as of September 2026.
How old do you have to be to fly from North America to Illinois?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from North America to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from North America to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from North America to Illinois is Boeing 737-800 (19.44% of total bookings). The next most popular plane models are Airbus A321neo (13.94%), Boeing 737-900 (10.26%), and Boeing 737 MAX 8 (8.66%).

Best airlines flying from North America to Illinois

Compare and see reviews for airlines that fly from North America to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $44	Free Cancellation	Rating 5.6 2,585 reviews	Search Frontier flights
JetBlue	PriceFrom $72	Free Cancellation	Rating 7.1 3,034 reviews	Search JetBlue flights
Delta	PriceFrom $74	Free Cancellation	Rating 7.8 8,594 reviews	Search Delta flights
Contour	PriceFrom $105	Free Cancellation	Rating 7.5 43 reviews	Search Contour flights
Breeze Airways	PriceFrom $122	Free Cancellation	Rating 8.2 325 reviews	Search Breeze Airways flights
United Airlines	PriceFrom $134	Free Cancellation	Rating 7.4 10,223 reviews	Search United Airlines flights
Southwest	PriceFrom $144	Free Cancellation	Rating 8.0 4,194 reviews	Search Southwest flights
American Airlines	PriceFrom $146	Free Cancellation	Rating 7.0 12,075 reviews	Search American Airlines flights
Volaris	PriceFrom $197	Free Cancellation	Rating 6.6 1,136 reviews	Search Volaris flights
Alaska Airlines	PriceFrom $204	Free Cancellation	Rating 7.9 12,953 reviews	Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Illinois from North America is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

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

Flights from North America to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from North America to Illinois?

Once all potential North America to 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 from North America to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from North America and alert you when they change.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

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Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Wed 10/21

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Find better results for your trip to Illinois

Popular cities

Other flights from North America

Other flights to Illinois

Airlines

Complete your trip

Feeling lucky

Popular cities in Illinois

Flights to New Yorkfrom $69

Flights to Los Angelesfrom $38

Flights to Orlandofrom $48

Flights to Miamifrom $50

Flights to San Franciscofrom $43

Flights to Chicagofrom $50

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $38

Flights to Fort Lauderdalefrom $38

Flights to Bostonfrom $106

Flights to Atlantafrom $38

Flights to Dallasfrom $59

Cheap flights from North America to Illinois from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from North America to Illinois departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from North America to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Price Alerts

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Delta flights from North America to Illinois

Our best Delta deals on North America to Illinois flight tickets

American Airlines flights from North America to Illinois

Our best American Airlines deals on North America to Illinois flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from North America to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from North America to Illinois

What is the cheapest month to fly to Illinois?

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

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

What is the cheapest North America to Illinois flight route?

How far in advance should I book a flight from North America to Illinois?

What cabin class options are available on North America to Illinois flights?

Can stopping save me money on North America to Illinois flights?

What is the cheapest airline that flies from North America to Illinois?

What airlines fly to Illinois?

How many flights depart from North America to Illinois on average per day?

How many flights depart from North America to Illinois on average per week?

Cheap North America to Illinois flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from North America to Illinois

Best airlines flying from North America to Illinois

Compare and see reviews for airlines that fly from North America to Illinois with momondo

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

North America flight routes

According to popular flight searches on momondo this year

Illinois flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Illinois

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Illinois

Explore popular destinations other users love

According to popular flight searches on momondo this year