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 day?

As of September 2026, there are 494 flights per day flying from North America to Illinois. The most common time of day flights depart is 8:00AM, with 40% of flights taking off at noon.

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

3,460 flights are operational weekly from North America to Illinois as of September 2026. The most popular departure day for this route is Fri, with 19% of flights per week taking off on this day.

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

United Airlines, Delta, and Alaska Airlines are the most popular carriers operating 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.

$83 Cheap Flights from North America to Illinois in 2026

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.

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

4h 13mnonstop

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

4h 50mnonstop

$166Frontier

Fri, Oct 16 - Tue, Oct 20

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

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

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

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

10h 03m1 stop Seattle/Tacoma Intl

$198Multiple Airlines

Mon, Oct 19 - Tue, Oct 27

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

Tue, Oct 13 - Fri, Oct 16

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

4h 08mnonstop

6:00 am - 8:38 amORD Chicago O'Hare Intl-LAX Los Angeles

4h 38mnonstop

$217American Airlines

Wed, Oct 7 - Wed, Oct 14

9:49 am - 4:05 pmLAX Los Angeles-ORD Chicago O'Hare Intl

4h 16mnonstop

11:45 am - 2:24 pmORD Chicago O'Hare Intl-LAX Los Angeles

4h 39mnonstop

$217American Airlines

Fri, Nov 6 - Mon, Nov 9

10:40 pm - 11:24 amLAX Los Angeles-ORD Chicago O'Hare Intl

10h 44m1 stop New York John F Kennedy Intl

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

9h 50m1 stop Fort Lauderdale

$217JetBlue

Mon, Oct 19 - Wed, Oct 28

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

Cheap last minute flights

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

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

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

5h 43m1 stop New York John F Kennedy Intl

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

2h 45mnonstop

$230JetBlue

Mon, Sep 14 - Mon, Sep 14

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

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 - Sun, Sep 20

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

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

2h 40mnonstop

7:00 am - 10:17 amORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 17mnonstop

$286Delta

Thu, Sep 17 - Tue, Oct 6

6:00 am - 7:29 amLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 29mnonstop

10:05 am - 1:26 pmORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 21mnonstop

$286Delta

Mon, Sep 14 - Wed, Oct 14

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

$294JetBlue

Thu, Sep 17 - Tue, Oct 6

Cheap direct flights

Enter your travel dates to find the best prices.

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

4h 13mnonstop

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

4h 50mnonstop

$166Frontier

Fri, Oct 16 - Tue, Oct 20

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

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

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

2h 07mnonstop

$198United Airlines

Tue, Oct 6 - Fri, Oct 9

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

4h 08mnonstop

6:00 am - 8:38 amORD Chicago O'Hare Intl-LAX Los Angeles

4h 38mnonstop

$217American Airlines

Wed, Oct 7 - Wed, Oct 14

9:49 am - 4:05 pmLAX Los Angeles-ORD Chicago O'Hare Intl

4h 16mnonstop

11:45 am - 2:24 pmORD Chicago O'Hare Intl-LAX Los Angeles

4h 39mnonstop

$217American Airlines

Fri, Nov 6 - Mon, Nov 9

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

3h 56mnonstop

7:45 am - 10:23 amORD Chicago O'Hare Intl-LAX Los Angeles

4h 38mnonstop

$217Delta

Mon, Nov 9 - Fri, Nov 13

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

Tue, Oct 20 - Mon, Oct 26

7:00 am - 8:48 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 48mnonstop

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

2h 45mnonstop

$240JetBlue

Tue, Sep 29 - Fri, Oct 2

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

3h 01mnonstop

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

2h 28mnonstop

$240JetBlue

Fri, Oct 2 - Sun, Oct 4

Save money when you book flights with momondo

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Alaska Airlines flights from North America to Illinois

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

Alaska Airlines

Oct 16

LAX8:06 pmLos Angeles

7h 34m

1 stop

ORD5:40 amChicago O'Hare Intl

Oct 17

ORD9:00 amChicago O'Hare Intl

10h 59m

1 stop

LAX5:59 pmLos Angeles

$231

Alaska Airlines

Sep 29

SEA8:41 amSeattle/Tacoma Intl

8h 40m

1 stop

ORD7:21 pmChicago O'Hare Intl

Oct 2

ORD6:00 amChicago O'Hare Intl

4h 30m

SEA8:30 amSeattle/Tacoma Intl

$287

Alaska Airlines

Oct 21

SEA11:41 pmSeattle/Tacoma Intl

3h 59m

ORD5:40 amChicago O'Hare Intl

Oct 22

ORD9:00 amChicago O'Hare Intl

4h 44m

SEA11:44 amSeattle/Tacoma Intl

$312

Frontier flights from North America to Illinois

Our best Frontier deals on North America to Illinois flight tickets

Frontier

Oct 16

LAX12:21 amLos Angeles

4h 13m

ORD6:34 amChicago O'Hare Intl

Oct 20

ORD8:01 pmChicago O'Hare Intl

4h 50m

LAX10:51 pmLos Angeles

$166

Frontier

Oct 15

BWI9:58 amBaltimore/Washington

2h 23m

ORD11:21 amChicago O'Hare Intl

Oct 19

ORD6:00 amChicago O'Hare Intl

2h 03m

BWI9:03 amBaltimore/Washington

$177

Frontier

Dec 10

BWI5:50 pmBaltimore/Washington

2h 24m

ORD7:14 pmChicago O'Hare Intl

Dec 13

ORD9:21 pmChicago O'Hare Intl

10h 05m

1 stop

BWI8:26 amBaltimore/Washington

$178

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Fri 10/16

12:21 am-6:34 am

Nonstop4h 13m

Chicago O'Hare Intl

Tue 10/20

8:01 pm-10:51 pm

Nonstop4h 50m

$166

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

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

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

Mon 10/19

12:21 am-6:34 am

Nonstop4h 13m

Chicago O'Hare Intl

Tue 10/27

9:00 am-5:03 pm

1 stop10h 03m

$198

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Tue 10/13

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

Wed 10/7

6:22 pm-12:30 am

Nonstop4h 08m

Chicago O'Hare Intl

Wed 10/14

6:00 am-8:38 am

Nonstop4h 38m

$217

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Fri 11/6

9:49 am-4:05 pm

Nonstop4h 16m

Chicago O'Hare Intl

Mon 11/9

11:45 am-2:24 pm

Nonstop4h 39m

$217

Los AngelesChicago

LAX Los Angeles - ORD Chicago O'Hare Intl

LAXORD

Los Angeles

Mon 10/19

10:40 pm-11:24 am

1 stop10h 44m

Chicago O'Hare Intl

Wed 10/28

7:00 am-2:50 pm

1 stop9h 50m

$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

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 $274.

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 $502. 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 $367. Flights at noon are often more expensive with an average ticket price of $517.

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 $242 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	$83
Fastest flight time	0h 45m
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 $83. The best round-trip flight deal from North America to Illinois found on momondo in the last 72 hours is $166.

The fastest flight from North America to Illinois takes 0h 45m

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), Chicago Midway (MDW).

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 (19.49% of total bookings). The next most popular plane models are Airbus A321neo (13.65%), Boeing 737-900 (10.01%), and Boeing 737 MAX 8 (8.58%).

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 2,603 reviews	Search Frontier flights
JetBlue	PriceFrom $72	Free Cancellation	Rating 7.1 3,037 reviews	Search JetBlue flights
Delta	PriceFrom $74	Free Cancellation	Rating 7.8 8,568 reviews	Search Delta flights
Contour	PriceFrom $105	Free Cancellation	Rating 7.5 43 reviews	Search Contour flights
Breeze Airways	PriceFrom $128	Free Cancellation	Rating 8.2 323 reviews	Search Breeze Airways flights
United Airlines	PriceFrom $132	Free Cancellation	Rating 7.4 10,210 reviews	Search United Airlines flights
Southwest	PriceFrom $139	Free Cancellation	Rating 8.0 4,191 reviews	Search Southwest flights
American Airlines	PriceFrom $143	Free Cancellation	Rating 7.1 12,049 reviews	Search American Airlines flights
Volaris	PriceFrom $196	Free Cancellation	Rating 6.6 1,142 reviews	Search Volaris flights
Alaska Airlines	PriceFrom $204	Free Cancellation	Rating 7.9 12,916 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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Tue 10/13

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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 $63

Flights to Los Angelesfrom $44

Flights to Orlandofrom $58

Flights to Miamifrom $55

Flights to San Franciscofrom $39

Flights to Chicagofrom $50

Flights to Las Vegasfrom $39

Flights to Washington, D.C.from $40

Flights to Fort Lauderdalefrom $40

Flights to Bostonfrom $110

Flights to Atlantafrom $40

Flights to Dallasfrom $50

Cheap flights from North America to Illinois from $83

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 10/15. 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

Trusted and free

Price Alerts

Price Alerts

Alaska Airlines flights from North America to Illinois

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

Frontier flights from North America to Illinois

Our best Frontier 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