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

3,043 flights are operational weekly from North America to Illinois as of November 2025. The most popular departure day for this route is Sun, with 19% of flights per week taking off on this day.

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

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

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 38% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 15 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 November 2025, there are 434 flights per day flying from North America to Illinois. The most common time of day flights depart is 6:00AM, with 46% 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 11 operators available for flights from North America to Illinois as of November 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.

$43 Cheap Flights from North America to Illinois in 2025/26

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Find the cheapest flights from North America to Illinois

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One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 am - 9:01 amLGA-ORD

2h 31mnonstop

4:38 pm - 7:42 pmORD-LGA

2h 04mnonstop

$86Spirit Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

7:30 am - 9:01 amLGA-ORD

2h 31mnonstop

3:53 pm - 7:00 pmORD-LGA

2h 07mnonstop

$87Spirit Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 3

7:18 pm - 9:58 pmDFW-ORD

2h 40mnonstop

3:24 pm - 6:13 pmORD-DFW

2h 49mnonstop

$87Frontier

Find Deal

Thu, Feb 12 - Sun, Feb 15

10:38 am - 1:04 pmDFW-MDW

2h 26mnonstop

7:00 am - 9:43 amMDW-DFW

2h 43mnonstop

$87Frontier

Find Deal

Fri, Feb 13 - Fri, Feb 20

5:15 pm - 7:26 pmBOS-ORD

3h 11mnonstop

7:05 am - 10:40 amORD-BOS

2h 35mnonstop

$117Delta

Find Deal

Sat, Jan 17 - Sun, Jan 18

6:00 am - 8:17 amBOS-ORD

3h 17mnonstop

8:02 pm - 11:40 pmORD-BOS

2h 38mnonstop

$124American Airlines

Find Deal

Sat, Dec 13 - Wed, Dec 17

6:36 am - 8:47 amBOS-ORD

3h 11mnonstop

8:20 pm - 11:51 pmORD-BOS

2h 31mnonstop

$125American Airlines

Find Deal

Thu, Jan 1 - Mon, Jan 5

6:00 am - 8:00 amBOS-ORD

3h 00mnonstop

1:55 pm - 5:15 pmORD-BOS

2h 20mnonstop

$127United Airlines

Find Deal

Wed, Dec 3 - Thu, Dec 11

4:20 pm - 6:20 pmBOS-ORD

3h 00mnonstop

7:45 am - 11:07 amORD-BOS

2h 22mnonstop

$129United Airlines

Find Deal

Mon, Dec 15 - Thu, Dec 18

5:55 pm - 11:52 pmSEA-ORD

3h 57mnonstop

7:40 am - 10:25 amORD-SEA

4h 45mnonstop

$177Delta

Find Deal

Sat, Feb 14 - Thu, Feb 19

Delta flights from North America to Illinois

Our best Delta deals on North America to Illinois flight tickets

Delta

Jan 17

BOS5:15 pmBoston Logan Intl

3h 11m

ORD7:26 pmChicago O'Hare Intl

Jan 18

ORD7:05 amChicago O'Hare Intl

2h 35m

BOS10:40 amBoston Logan Intl

$117

Find similar

Delta

Jan 9

BOS7:55 pmBoston Logan Intl

3h 06m

ORD10:01 pmChicago O'Hare Intl

Jan 12

ORD7:05 amChicago O'Hare Intl

2h 35m

BOS10:40 amBoston Logan Intl

$137

Find similar

Delta

Jan 15

JFK7:50 amNew York John F Kennedy Intl

2h 59m

ORD9:49 amChicago O'Hare Intl

Jan 18

ORD6:25 pmChicago O'Hare Intl

2h 34m

JFK9:59 pmNew York John F Kennedy Intl

$138

Find similar

Frontier flights from North America to Illinois

Our best Frontier deals on North America to Illinois flight tickets

Frontier

Feb 12

DFW7:18 pmDallas/Fort Worth

2h 40m

ORD9:58 pmChicago O'Hare Intl

Feb 15

ORD3:24 pmChicago O'Hare Intl

2h 49m

DFW6:13 pmDallas/Fort Worth

$87

Find similar

Frontier

Dec 12

JFK1:00 pmNew York John F Kennedy Intl

2h 57m

ORD2:57 pmChicago O'Hare Intl

Dec 15

ORD8:36 amChicago O'Hare Intl

2h 24m

JFK12:00 pmNew York John F Kennedy Intl

$88

Find similar

Frontier

Jan 5

DFW6:48 pmDallas/Fort Worth

2h 38m

ORD9:26 pmChicago O'Hare Intl

Jan 12

ORD6:10 pmChicago O'Hare Intl

3h 00m

DFW9:10 pmDallas/Fort Worth

$89

Find similar

Fly from

Fly to

Route

Depart

Return

Price

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Wed 12/3

7:30 am-9:01 am

Nonstop2h 31m

Chicago O'Hare Intl

Wed 12/10

4:38 pm-7:42 pm

Nonstop2h 04m

$86

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Wed 12/3

7:30 am-9:01 am

Nonstop2h 31m

Chicago O'Hare Intl

Wed 12/3

3:53 pm-7:00 pm

Nonstop2h 07m

$87

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Thu 2/12

7:18 pm-9:58 pm

Nonstop2h 40m

Chicago O'Hare Intl

Sun 2/15

3:24 pm-6:13 pm

Nonstop2h 49m

$87

DallasChicago

DFW - MDW

DFWMDW

Dallas/Fort Worth

Fri 2/13

10:38 am-1:04 pm

Nonstop2h 26m

Chicago Midway

Fri 2/20

7:00 am-9:43 am

Nonstop2h 43m

$87

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 1/17

5:15 pm-7:26 pm

Nonstop3h 11m

Chicago O'Hare Intl

Sun 1/18

7:05 am-10:40 am

Nonstop2h 35m

$117

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 12/13

6:00 am-8:17 am

Nonstop3h 17m

Chicago O'Hare Intl

Wed 12/17

8:02 pm-11:40 pm

Nonstop2h 38m

$124

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 1/1

6:36 am-8:47 am

Nonstop3h 11m

Chicago O'Hare Intl

Mon 1/5

8:20 pm-11:51 pm

Nonstop2h 31m

$125

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 12/3

6:00 am-8:00 am

Nonstop3h 00m

Chicago O'Hare Intl

Thu 12/11

1:55 pm-5:15 pm

Nonstop2h 20m

$127

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 12/15

4:20 pm-6:20 pm

Nonstop3h 00m

Chicago O'Hare Intl

Thu 12/18

7:45 am-11:07 am

Nonstop2h 22m

$129

SeattleChicago

SEA - ORD

SEAORD

Seattle/Tacoma Intl

Sat 2/14

5:55 pm-11:52 pm

Nonstop3h 57m

Chicago O'Hare Intl

Thu 2/19

7:40 am-10:25 am

Nonstop4h 45m

$177

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 $184, 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 $358. Flights from North America to Illinois on a Sunday will generally be more expensive and average around $453. 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 $276. Flights at noon are often more expensive with an average ticket price of $459.

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 $248 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	$49
Fastest flight time	2h 08m
Direct flights	Every day
Airports in Illinois	2 airports

The best one-way flight to Illinois from North America in the past 72 hours is $49. The best round-trip flight deal from North America to Illinois found on momondo in the last 72 hours is $71.

The fastest flight from North America to Illinois takes 2h 08m

Direct flights go from North America to Illinois every day.

There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

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 November 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 (21.83% of total bookings). The next most popular plane models are Boeing 737-900 (10.75%), Airbus A321neo (10.60%), and Boeing 737 MAX 8 (8.21%).

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 $55	Free Cancellation	Rating 5.8 3,099 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $59	Free Cancellation	Rating 6.3 8,159 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $79	Free Cancellation	Rating 7.2 2,903 reviews	Search JetBlue flights
Allegiant Air	PriceFrom $91	Free Cancellation	Rating 7.2 701 reviews	Search Allegiant Air flights
Delta	PriceFrom $101	Free Cancellation	Rating 7.9 7,997 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,813 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 8.0 4,252 reviews	Search Southwest flights
Breeze Airways	PriceFrom $121	Free Cancellation	Rating 8.2 237 reviews	Search Breeze Airways flights
United Airlines	PriceFrom $126	Free Cancellation	Rating 7.4 9,036 reviews	Search United Airlines flights
Sun Country Air	PriceFrom $130	Free Cancellation	Rating 6.9 334 reviews	Search Sun Country Air 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.

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Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $44

Flights to Los Angelesfrom $54

Flights to Miamifrom $48

Flights to Chicagofrom $48

Flights to Orlandofrom $38

Flights to Las Vegasfrom $49

Flights to San Franciscofrom $55

Flights to Washington, D.C.from $36

Flights to Bostonfrom $60

Flights to Atlantafrom $48

Flights to Dallasfrom $53

Flights to Seattlefrom $57

Cheap flights from North America to Illinois from $43

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 12/21. 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

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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

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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 $276. Flights at noon are often more expensive with an average ticket price of $459.

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?

Frontier, Spirit Airlines, and JetBlue 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 November 2025, there are 434 flights per day flying from North America to Illinois. The most common time of day flights depart is 6:00AM, with 46% of flights taking off at noon.

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

3,043 flights are operational weekly from North America to Illinois as of November 2025. The most popular departure day for this route is Sun, with 19% 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