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

Spirit Airlines, Frontier, and United Airlines 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 October 2025, there are 320 flights per day flying from North America to Illinois. The most common time of day flights depart is 10:00AM, with 48% of flights taking off at noon.

What airlines fly to Illinois?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Illinois from North America according to our data. American Airlines is the first choice among our users, with 37% 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?

2,243 flights are operational weekly from North America to Illinois as of October 2025. The most popular departure day for this route is Fri, with 27% 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 11 operators available for flights from North America to Illinois as of October 2025.

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.

$48 Cheap Flights from North America to Illinois in 2025/26

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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.

9:29 pm - 11:56 pmDFW-ORD

2h 27mnonstop

8:59 am - 11:46 amORD-DFW

2h 47mnonstop

$100Frontier

Find Deal

Thu, Nov 20 - Sun, Nov 23

7:35 am - 10:01 amDFW-ORD

2h 26mnonstop

6:00 am - 1:24 pmORD-DFW

7h 24m1 stop

$101Multiple Airlines

Find Deal

Thu, Nov 13 - Sat, Nov 15

9:32 pm - 7:28 amDFW-ORD

9h 56m1 stop

5:57 pm - 8:37 pmORD-DFW

2h 40mnonstop

$102Spirit Airlines

Find Deal

Tue, Nov 11 - Fri, Nov 14

6:00 am - 2:13 pmDFW-ORD

8h 13m1 stop

6:20 pm - 9:09 pmORD-DFW

2h 49mnonstop

$103Frontier

Find Deal

Thu, Nov 6 - Thu, Nov 6

5:25 am - 7:43 amDFW-ORD

2h 18mnonstop

9:22 pm - 11:59 pmORD-DFW

2h 37mnonstop

$104Spirit Airlines

Find Deal

Sat, Nov 22 - Wed, Nov 26

10:15 am - 11:35 amPHL-ORD

2h 20mnonstop

6:02 pm - 9:10 pmORD-PHL

2h 08mnonstop

$107United Airlines

Find Deal

Mon, Dec 8 - Sat, Dec 13

9:24 pm - 10:54 pmPHL-ORD

2h 30mnonstop

5:00 am - 7:58 amORD-PHL

1h 58mnonstop

$113American Airlines

Find Deal

Thu, Dec 4 - Mon, Dec 8

9:00 am - 10:49 amJFK-ORD

2h 49mnonstop

10:06 am - 1:29 pmORD-JFK

2h 23mnonstop

$116American Airlines

Find Deal

Thu, Dec 4 - Sun, Dec 7

1:10 pm - 2:19 pmBWI-ORD

2h 09mnonstop

6:09 pm - 9:08 pmORD-BWI

1h 59mnonstop

$127United Airlines

Find Deal

Tue, Dec 9 - Wed, Dec 17

6:10 am - 1:00 pmDCA-ORD

7h 50m1 stop

3:45 pm - 10:50 pmORD-DCA

6h 05m1 stop

$174Southwest

Find Deal

Tue, Dec 9 - Wed, Dec 10

Spirit Airlines flights from North America to Illinois

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

Spirit Airlines

Nov 11

DFW9:32 pmDallas/Fort Worth

9h 56m

1 stop

ORD7:28 amChicago O'Hare Intl

Nov 14

ORD5:57 pmChicago O'Hare Intl

2h 40m

DFW8:37 pmDallas/Fort Worth

$102

Find similar

Spirit Airlines

Nov 22

DFW5:25 amDallas/Fort Worth

2h 18m

ORD7:43 amChicago O'Hare Intl

Nov 26

ORD9:22 pmChicago O'Hare Intl

2h 37m

DFW11:59 pmDallas/Fort Worth

$104

Find similar

Spirit Airlines

Oct 31

DFW8:10 amDallas/Fort Worth

13h 23m

1 stop

ORD9:33 pmChicago O'Hare Intl

Nov 5

ORD1:48 pmChicago O'Hare Intl

2h 33m

DFW4:21 pmDallas/Fort Worth

$105

Find similar

American Airlines flights from North America to Illinois

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

American Airlines

Dec 4

PHL9:24 pmPhiladelphia

2h 30m

ORD10:54 pmChicago O'Hare Intl

Dec 8

ORD5:00 amChicago O'Hare Intl

1h 58m

PHL7:58 amPhiladelphia

$113

Find similar

American Airlines

Dec 4

JFK9:00 amNew York John F Kennedy Intl

2h 49m

ORD10:49 amChicago O'Hare Intl

Dec 7

ORD10:06 amChicago O'Hare Intl

2h 23m

JFK1:29 pmNew York John F Kennedy Intl

$116

Find similar

American Airlines

Dec 13

PHL10:57 amPhiladelphia

2h 30m

ORD12:27 pmChicago O'Hare Intl

Dec 14

ORD8:50 pmChicago O'Hare Intl

2h 05m

PHL11:55 pmPhiladelphia

$119

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Thu 11/20

9:29 pm-11:56 pm

Nonstop2h 27m

Chicago O'Hare Intl

Sun 11/23

8:59 am-11:46 am

Nonstop2h 47m

$100

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Thu 11/13

7:35 am-10:01 am

Nonstop2h 26m

Chicago O'Hare Intl

Sat 11/15

6:00 am-1:24 pm

1 stop7h 24m

$101

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Tue 11/11

9:32 pm-7:28 am

1 stop9h 56m

Chicago O'Hare Intl

Fri 11/14

5:57 pm-8:37 pm

Nonstop2h 40m

$102

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Thu 11/6

6:00 am-2:13 pm

1 stop8h 13m

Chicago O'Hare Intl

Thu 11/6

6:20 pm-9:09 pm

Nonstop2h 49m

$103

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sat 11/22

5:25 am-7:43 am

Nonstop2h 18m

Chicago O'Hare Intl

Wed 11/26

9:22 pm-11:59 pm

Nonstop2h 37m

$104

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Mon 12/8

10:15 am-11:35 am

Nonstop2h 20m

Chicago O'Hare Intl

Sat 12/13

6:02 pm-9:10 pm

Nonstop2h 08m

$107

PhiladelphiaChicago

PHL - ORD

PHLORD

Philadelphia

Thu 12/4

9:24 pm-10:54 pm

Nonstop2h 30m

Chicago O'Hare Intl

Mon 12/8

5:00 am-7:58 am

Nonstop1h 58m

$113

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

Thu 12/4

9:00 am-10:49 am

Nonstop2h 49m

Chicago O'Hare Intl

Sun 12/7

10:06 am-1:29 pm

Nonstop2h 23m

$116

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Tue 12/9

1:10 pm-2:19 pm

Nonstop2h 09m

Chicago O'Hare Intl

Wed 12/17

6:09 pm-9:08 pm

Nonstop1h 59m

$127

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Tue 12/9

6:10 am-1:00 pm

1 stop7h 50m

Chicago O'Hare Intl

Wed 12/10

3:45 pm-10:50 pm

1 stop6h 05m

$174

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 $186, 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 $189.

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 Thursday when prices can be found for as low as $359. Flights from North America to Illinois on a Sunday will generally be more expensive and average around $451. 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 $280. Flights at noon are often more expensive with an average ticket price of $456.

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 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 $252 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 $186 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	$45
Fastest flight time	2h 03m
Direct flights	Every day
Airports in Illinois	1 airport

The best one-way flight to Illinois from North America in the past 72 hours is $45. The best round-trip flight deal from North America to Illinois found on momondo in the last 72 hours is $53.

The fastest flight from North America to Illinois takes 2h 03m

Direct flights go from North America to Illinois every day.

There is 1 airport near Illinois: Chicago O'Hare Intl (ORD)

Search flight deals

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 11 operators available for flights from North America to Illinois as of October 2025.
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 (22.34% of total bookings). The next most popular plane models are Boeing 737-900 (10.66%), Airbus A321neo (9.41%), and Boeing 737 MAX 8 (8.73%).

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
Spirit Airlines	PriceFrom $59	Free Cancellation	Rating 6.3 8,104 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $59	Free Cancellation	Rating 5.8 3,128 reviews	Search Frontier flights
Allegiant Air	PriceFrom $77	Free Cancellation	Rating 7.2 694 reviews	Search Allegiant Air flights
JetBlue	PriceFrom $78	Free Cancellation	Rating 7.2 2,909 reviews	Search JetBlue flights
Delta	PriceFrom $101	Free Cancellation	Rating 7.9 7,983 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,789 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 8.0 4,235 reviews	Search Southwest flights
Breeze Airways	PriceFrom $121	Free Cancellation	Rating 8.1 220 reviews	Search Breeze Airways flights
Sun Country Air	PriceFrom $130	Free Cancellation	Rating 6.9 334 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $130	Free Cancellation	Rating 7.4 8,994 reviews	Search United 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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Sun 11/23

Sun 11/30

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Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $48

Flights to Los Angelesfrom $49

Flights to Miamifrom $49

Flights to Chicagofrom $49

Flights to Orlandofrom $47

Flights to Las Vegasfrom $38

Flights to San Franciscofrom $48

Flights to Washington, D.C.from $47

Flights to Bostonfrom $60

Flights to Atlantafrom $47

Flights to Dallasfrom $52

Flights to Seattlefrom $54

North America flight routes

Flights from Las Vegas Harry Reid Intl to Burbank Bob Hope

Flights from Grand Rapids Gerald R. Ford Intl to Raleigh-Durham

Flights from Myrtle Beach Intl to Manchester

Flights from Fort Lauderdale to Charleston

Flights from Detroit Metropolitan Wayne County to Wilmington New Hanover County

Flights from Wilmington New Hanover County to Fort Myers SW Florida Intl

Cheap flights from North America to Illinois from $48

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 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

Find the cheapest flights from North America to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Spirit Airlines flights from North America to Illinois

Our best Spirit Airlines 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

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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

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

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?

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 $280. Flights at noon are often more expensive with an average ticket price of $456.

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 to Illinois?

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.

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

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

What airlines fly to Illinois?

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

As of October 2025, there are 320 flights per day flying from North America to Illinois. The most common time of day flights depart is 10:00AM, with 48% of flights taking off at noon.

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

2,243 flights are operational weekly from North America to Illinois as of October 2025. The most popular departure day for this route is Fri, with 27% of flights per week taking off on this day.

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

Fastest flight time

Direct flights

Airports in Illinois

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

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

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

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

What is the most popular plane model 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?

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

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

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

I’m not ready to book a flight from North America to Illinois right now. Can momondo alert me if prices 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.

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