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

3,556 flights are operational weekly from North America to Illinois as of August 2026. The most popular departure day for this route is Fri, with 16% of flights per week taking off on this day.

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 38% 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.

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

United Airlines, Frontier, 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 August 2026, there are 508 flights per day flying from North America to Illinois. The most common time of day flights depart is 8:00AM, with 43% of flights taking off at noon.

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 August 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.

$58 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.

12:54 pm - 6:23 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

6h 29m1 stop Atlanta Hartsfield-Jackson

8:05 am - 4:29 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

7h 24m1 stop Atlanta Hartsfield-Jackson

$162Frontier

Sat, Sep 26 - Sat, Oct 3

5:20 pm - 7:26 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 06mnonstop

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

2h 28mnonstop

$163JetBlue

Wed, Sep 2 - Thu, Sep 10

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

$163JetBlue

Thu, Oct 1 - Sat, Oct 3

7:05 am - 9:03 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 58mnonstop

6:24 pm - 9:59 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 35mnonstop

$165United Airlines

Tue, Sep 8 - Tue, Sep 15

8:05 am - 10:04 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 59mnonstop

9:07 am - 12:50 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 43mnonstop

$165United Airlines

Tue, Sep 1 - Wed, Sep 2

7:17 pm - 9:35 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 18mnonstop

10:30 am - 2:08 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 38mnonstop

$165American Airlines

Thu, Sep 10 - Mon, Sep 14

8:23 am - 10:30 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 07mnonstop

6:00 am - 9:37 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 37mnonstop

$165American Airlines

Thu, Oct 15 - Mon, Oct 19

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

2h 54mnonstop

7:35 am - 11:08 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 33mnonstop

$165Delta

Wed, Sep 16 - Tue, Sep 22

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

2h 54mnonstop

7:10 pm - 10:53 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 43mnonstop

$165Delta

Tue, Oct 20 - Tue, Oct 20

6:00 pm - 12:23 amDCA Washington, D.C. Reagan-National-ORD Chicago O'Hare Intl

7h 23m1 stop Denver Intl

6:30 am - 9:59 pmORD Chicago O'Hare Intl-DCA Washington, D.C. Reagan-National

14h 29m1 stop Denver Intl

$184Frontier

Sat, Sep 12 - Mon, Sep 14

Cheap last minute flights

Enter your travel dates to find the best prices.

12:45 pm - 8:08 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

8h 23m1 stop Atlanta Hartsfield-Jackson

7:44 pm - 9:09 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

12h 25m1 stop Orlando

$197Frontier

Tue, Aug 18 - Sat, Sep 5

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

2h 43mnonstop

9:10 pm - 11:53 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 43mnonstop

$204Frontier

Fri, Aug 21 - Tue, Sep 1

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

4h 25m1 stop Kirksville Cannon Memorial

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

2h 41mnonstop

$217Multiple Airlines

Thu, Aug 20 - Thu, Sep 17

11:59 pm - 6:17 amLAX Los Angeles-ORD Chicago O'Hare Intl

4h 18mnonstop

6:54 pm - 9:34 amORD Chicago O'Hare Intl-LAX Los Angeles

16h 40m1 stop Seattle/Tacoma Intl

$223Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

8:15 am - 10:11 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 56mnonstop

8:20 pm - 12:16 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 56mnonstop

$224JetBlue

Tue, Aug 18 - Wed, Sep 2

8:15 am - 10:11 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 56mnonstop

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

2h 45mnonstop

$240JetBlue

Tue, Aug 18 - Tue, Sep 15

6:14 am - 8:20 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 06mnonstop

3:01 pm - 6:41 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 40mnonstop

$241American Airlines

Tue, Aug 18 - Sat, Sep 5

8:50 pm - 10:44 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 54mnonstop

7:30 pm - 11:00 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 30mnonstop

$241Delta

Fri, Aug 21 - Tue, Sep 1

2:10 pm - 4:05 pmLGA New York LaGuardia-ORD Chicago O'Hare Intl

2h 55mnonstop

6:00 am - 9:13 amORD Chicago O'Hare Intl-LGA New York LaGuardia

2h 13mnonstop

$245American Airlines

Fri, Aug 21 - Wed, Sep 2

11:00 am - 4:37 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

6h 37m1 stop New York LaGuardia

7:55 am - 11:24 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 29mnonstop

$251Delta

Fri, Aug 21 - Tue, Sep 1

Cheap direct flights

Enter your travel dates to find the best prices.

11:15 am - 1:20 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 05mnonstop

8:24 pm - 11:56 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 32mnonstop

$163JetBlue

Tue, Oct 27 - Sat, Oct 31

8:15 am - 10:11 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 56mnonstop

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

2h 28mnonstop

$163JetBlue

Tue, Sep 8 - Thu, Sep 10

7:05 am - 9:03 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 58mnonstop

6:24 pm - 9:59 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 35mnonstop

$165United Airlines

Tue, Sep 8 - Tue, Sep 15

8:05 am - 10:04 amBOS Boston Logan Intl-ORD Chicago O'Hare Intl

2h 59mnonstop

9:07 am - 12:50 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 43mnonstop

$165United Airlines

Tue, Sep 1 - Wed, Sep 2

12:00 pm - 2:02 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 02mnonstop

5:11 pm - 8:59 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 48mnonstop

$165American Airlines

Sat, Oct 24 - Mon, Oct 26

4:29 pm - 6:42 pmBOS Boston Logan Intl-ORD Chicago O'Hare Intl

3h 13mnonstop

6:45 pm - 10:27 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 42mnonstop

$165American Airlines

Thu, Sep 24 - Sat, Sep 26

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

2h 54mnonstop

7:10 pm - 10:53 pmORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 43mnonstop

$165Delta

Tue, Oct 20 - Tue, Oct 20

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

2h 54mnonstop

7:35 am - 11:08 amORD Chicago O'Hare Intl-BOS Boston Logan Intl

2h 33mnonstop

$165Delta

Wed, Sep 16 - Tue, Sep 22

9:54 am - 12:17 pmDFW Dallas/Fort Worth-MDW Chicago Midway

2h 23mnonstop

1:12 pm - 3:45 pmMDW Chicago Midway-DFW Dallas/Fort Worth

2h 33mnonstop

$188Frontier

Wed, Oct 21 - Sun, Oct 25

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

$188Frontier

Sun, Sep 6 - Thu, Sep 10

Save money when you book flights with momondo

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Delta flights from North America to Illinois

Our best Delta deals on North America to Illinois flight tickets

Delta

Sep 3

BOS5:30 amBoston Logan Intl

5h 43m

1 stop

ORD10:13 amChicago O'Hare Intl

Sep 8

ORD7:35 amChicago O'Hare Intl

2h 33m

BOS11:08 amBoston Logan Intl

$175

Delta

Oct 22

BOS5:39 amBoston Logan Intl

5h 51m

1 stop

ORD10:30 amChicago O'Hare Intl

Oct 27

ORD11:30 amChicago O'Hare Intl

5h 58m

1 stop

BOS6:28 pmBoston Logan Intl

$185

Delta

Sep 18

BOS8:50 pmBoston Logan Intl

2h 42m

ORD10:32 pmChicago O'Hare Intl

Sep 21

ORD5:10 pmChicago O'Hare Intl

5h 48m

1 stop

BOS11:58 pmBoston Logan Intl

$197

Frontier flights from North America to Illinois

Our best Frontier deals on North America to Illinois flight tickets

Frontier

Sep 26

BOS12:54 pmBoston Logan Intl

6h 29m

1 stop

ORD6:23 pmChicago O'Hare Intl

Oct 3

ORD8:05 amChicago O'Hare Intl

7h 24m

1 stop

BOS4:29 pmBoston Logan Intl

$162

Frontier

Aug 31

BOS12:45 pmBoston Logan Intl

8h 14m

1 stop

ORD7:59 pmChicago O'Hare Intl

Sep 5

ORD7:44 pmChicago O'Hare Intl

12h 25m

1 stop

BOS9:09 amBoston Logan Intl

$168

Frontier

Oct 3

BOS12:54 pmBoston Logan Intl

6h 29m

1 stop

ORD6:23 pmChicago O'Hare Intl

Oct 4

ORD6:00 amChicago O'Hare Intl

2h 39m

BOS9:39 amBoston Logan Intl

$173

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Sat 9/26

12:54 pm-6:23 pm

1 stop6h 29m

Chicago O'Hare Intl

Sat 10/3

8:05 am-4:29 pm

1 stop7h 24m

$162

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Wed 9/2

5:20 pm-7:26 pm

Nonstop3h 06m

Chicago O'Hare Intl

Thu 9/10

9:38 am-1:06 pm

Nonstop2h 28m

$163

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Thu 10/1

7:00 am-8:48 am

Nonstop2h 48m

Chicago O'Hare Intl

Sat 10/3

8:24 pm-12:09 am

Nonstop2h 45m

$163

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Tue 9/8

7:05 am-9:03 am

Nonstop2h 58m

Chicago O'Hare Intl

Tue 9/15

6:24 pm-9:59 pm

Nonstop2h 35m

$165

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Tue 9/1

8:05 am-10:04 am

Nonstop2h 59m

Chicago O'Hare Intl

Wed 9/2

9:07 am-12:50 pm

Nonstop2h 43m

$165

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Thu 9/10

7:17 pm-9:35 pm

Nonstop3h 18m

Chicago O'Hare Intl

Mon 9/14

10:30 am-2:08 pm

Nonstop2h 38m

$165

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Thu 10/15

8:23 am-10:30 am

Nonstop3h 07m

Chicago O'Hare Intl

Mon 10/19

6:00 am-9:37 am

Nonstop2h 37m

$165

Quickest round-trip

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Wed 9/16

7:30 am-9:24 am

Nonstop2h 54m

Chicago O'Hare Intl

Tue 9/22

7:35 am-11:08 am

Nonstop2h 33m

$165

BostonChicago

BOS Boston Logan Intl - ORD Chicago O'Hare Intl

BOSORD

Boston Logan Intl

Tue 10/20

7:30 am-9:24 am

Nonstop2h 54m

Chicago O'Hare Intl

Tue 10/20

7:10 pm-10:53 pm

Nonstop2h 43m

$165

Washington, D.C.Chicago

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

DCAORD

Washington, D.C. Reagan-National

Sat 9/12

6:00 pm-12:23 am

1 stop7h 23m

Chicago O'Hare Intl

Mon 9/14

6:30 am-9:59 pm

1 stop14h 29m

$184

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 $264, 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 $273.

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 $403. Flights from North America to Illinois on a Sunday will generally be more expensive and average around $501. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 $356. Flights at noon are often more expensive with an average ticket price of $515.

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 $241 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 $174 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	$39
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 $39. The best round-trip flight deal from North America to Illinois found on momondo in the last 72 hours is $70.

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).

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 August 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 (20.39% of total bookings). The next most popular plane models are Airbus A321neo (13.85%), Boeing 737-900 (9.86%), and Boeing 737 MAX 8 (8.32%).

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 2,685 reviews	Search Frontier flights
JetBlue	PriceFrom $70	Free Cancellation	Rating 7.1 3,037 reviews	Search JetBlue flights
Delta	PriceFrom $74	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
Allegiant Air	PriceFrom $110	Free Cancellation	Rating 7.3 676 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $127	Free Cancellation	Rating 7.4 10,107 reviews	Search United Airlines flights
Breeze Airways	PriceFrom $128	Free Cancellation	Rating 8.2 309 reviews	Search Breeze Airways flights
Southwest	PriceFrom $137	Free Cancellation	Rating 8.0 4,218 reviews	Search Southwest flights
American Airlines	PriceFrom $137	Free Cancellation	Rating 7.1 11,946 reviews	Search American Airlines flights
Air Canada	PriceFrom $178	Free Cancellation	Rating 7.1 11,481 reviews	Search Air Canada flights
Alaska Airlines	PriceFrom $195	Free Cancellation	Rating 7.9 12,812 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 9/15

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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 $73

Flights to Los Angelesfrom $50

Flights to Orlandofrom $40

Flights to Miamifrom $70

Flights to San Franciscofrom $56

Flights to Chicagofrom $56

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $52

Flights to Bostonfrom $88

Flights to Atlantafrom $42

Flights to Fort Lauderdalefrom $42

Flights to Dallasfrom $65

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 10/16. 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

Delta flights from North America to Illinois

Our best Delta 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