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

Spirit 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 January 2026, there are 346 flights per day flying from North America to Illinois. The most common time of day flights depart is 6:00AM, with 48% of flights taking off at noon.

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

2,425 flights are operational weekly from North America to Illinois as of January 2026. The most popular departure day for this route is Thu, with 22% of flights per week taking off on this day.

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 15 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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 January 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.

$48 Cheap Flights from North America to Illinois in 2026

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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.

1:54 pm - 3:21 pm

BWI

ORD

2h 27mnonstop

8:10 am - 11:10 am

ORD

BWI

2h 00mnonstop

$80Frontier

lun., ene. 19 - jue., ene. 22

1:54 pm - 3:21 pm

BWI

ORD

2h 27mnonstop

6:05 am - 9:05 am

ORD

BWI

2h 00mnonstop

$84Frontier

lun., ene. 19 - vie., ene. 23

10:00 am - 11:27 am

BWI

ORD

2h 27mnonstop

5:25 am - 8:25 am

ORD

BWI

2h 00mnonstop

$87Frontier

vie., ene. 23 - dom., ene. 25

8:39 pm - 8:18 am

LGA

ORD

12h 39m1 stop

5:53 pm - 8:59 pm

ORD

LGA

2h 06mnonstop

$92Spirit Airlines

mar., ene. 20 - mié., ene. 21

7:30 am - 9:12 am

LGA

ORD

2h 42mnonstop

5:53 pm - 8:59 pm

ORD

LGA

2h 06mnonstop

$93Spirit Airlines

mar., ene. 20 - mié., ene. 28

5:15 pm - 6:55 pm

LGA

ORD

2h 40mnonstop

12:10 pm - 3:23 pm

ORD

LGA

2h 13mnonstop

$97United Airlines

vie., ene. 30 - lun., feb. 2

9:00 am - 10:51 am

JFK

ORD

2h 51mnonstop

4:14 pm - 7:31 pm

ORD

JFK

2h 17mnonstop

$99American Airlines

jue., ene. 15 - dom., ene. 18

12:30 am - 6:30 am

LAX

ORD

4h 00mnonstop

1:00 pm - 3:31 pm

ORD

LAX

4h 31mnonstop

$159United Airlines

vie., ene. 16 - mar., ene. 20

1:20 pm - 9:52 pm

SFO

ORD

6h 32m1 stop

8:50 am - 1:47 pm

ORD

SFO

6h 57m1 stop

$261Delta

lun., ene. 26 - lun., feb. 2

10:54 pm - 9:41 am

SFO

ORD

8h 47m1 stop

6:45 pm - 11:47 pm

ORD

SFO

7h 02m1 stop

$263Delta

vie., ene. 30 - dom., feb. 1

Spirit Airlines flights from North America to Illinois

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

Spirit Airlines

Jan 20

LGA8:39 pmNew York LaGuardia

12h 39m

1 stop

ORD8:18 amChicago O'Hare Intl

Feb 7

ORD5:53 pmChicago O'Hare Intl

2h 06m

LGA8:59 pmNew York LaGuardia

$92

Find similar

Spirit Airlines

Jan 20

LGA7:30 amNew York LaGuardia

2h 42m

ORD9:12 amChicago O'Hare Intl

Jan 27

ORD5:53 pmChicago O'Hare Intl

2h 06m

LGA8:59 pmNew York LaGuardia

$93

Find similar

Spirit Airlines

Jan 20

LGA7:30 amNew York LaGuardia

2h 42m

ORD9:12 amChicago O'Hare Intl

Jan 25

ORD5:53 pmChicago O'Hare Intl

2h 06m

LGA8:59 pmNew York LaGuardia

$94

Find similar

JetBlue flights from North America to Illinois

Our best JetBlue deals on North America to Illinois flight tickets

JetBlue

Jan 15

JFK5:25 pmNew York John F Kennedy Intl

3h 11m

ORD7:36 pmChicago O'Hare Intl

Jan 18

ORD9:15 amChicago O'Hare Intl

2h 17m

JFK12:32 pmNew York John F Kennedy Intl

$93

Find similar

JetBlue

Jan 13

JFK5:25 pmNew York John F Kennedy Intl

3h 11m

ORD7:36 pmChicago O'Hare Intl

Jan 16

ORD9:15 amChicago O'Hare Intl

2h 17m

JFK12:32 pmNew York John F Kennedy Intl

$94

Find similar

JetBlue

Jan 15

JFK5:25 pmNew York John F Kennedy Intl

3h 11m

ORD7:36 pmChicago O'Hare Intl

Jan 18

ORD9:15 amChicago O'Hare Intl

2h 17m

JFK12:32 pmNew York John F Kennedy Intl

$95

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

lun. 1/19

1:54 pm-3:21 pm

Nonstop2h 27m

Chicago O'Hare Intl

jue. 1/22

8:10 am-11:10 am

Nonstop2h 00m

$80

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

lun. 1/19

1:54 pm-3:21 pm

Nonstop2h 27m

Chicago O'Hare Intl

vie. 1/23

6:05 am-9:05 am

Nonstop2h 00m

$84

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

vie. 1/23

10:00 am-11:27 am

Nonstop2h 27m

Chicago O'Hare Intl

dom. 1/25

5:25 am-8:25 am

Nonstop2h 00m

$87

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

mar. 1/20

8:39 pm-8:18 am

1 stop12h 39m

Chicago O'Hare Intl

mié. 1/21

5:53 pm-8:59 pm

Nonstop2h 06m

$92

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

mar. 1/20

7:30 am-9:12 am

Nonstop2h 42m

Chicago O'Hare Intl

mié. 1/28

5:53 pm-8:59 pm

Nonstop2h 06m

$93

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

vie. 1/30

5:15 pm-6:55 pm

Nonstop2h 40m

Chicago O'Hare Intl

lun. 2/2

12:10 pm-3:23 pm

Nonstop2h 13m

$97

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

jue. 1/15

9:00 am-10:51 am

Nonstop2h 51m

Chicago O'Hare Intl

dom. 1/18

4:14 pm-7:31 pm

Nonstop2h 17m

$99

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

vie. 1/16

12:30 am-6:30 am

Nonstop4h 00m

Chicago O'Hare Intl

mar. 1/20

1:00 pm-3:31 pm

Nonstop4h 31m

$159

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

lun. 1/26

1:20 pm-9:52 pm

1 stop6h 32m

Chicago O'Hare Intl

lun. 2/2

8:50 am-1:47 pm

1 stop6h 57m

$261

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

vie. 1/30

10:54 pm-9:41 am

1 stop8h 47m

Chicago O'Hare Intl

dom. 2/1

6:45 pm-11:47 pm

1 stop7h 02m

$263

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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 $179, 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 $356. Flights from North America to Illinois on a Sunday will generally be more expensive and average around $432. 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 $272. Flights at noon are often more expensive with an average ticket price of $454.

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 $240 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 $173 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	$29
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 $29. The best round-trip flight deal from North America to Illinois found on momondo in the last 72 hours is $68.

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

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 January 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 (19.92% of total bookings). The next most popular plane models are Airbus A321neo (12.28%), Boeing 737-900 (8.81%), and Boeing 737 MAX 8 (8.74%).

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 5.7 3,068 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $58	Free Cancellation	Rating 6.3 8,258 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $72	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
Allegiant Air	PriceFrom $91	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
Delta	PriceFrom $101	Free Cancellation	Rating 7.9 8,021 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,823 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 8.0 4,254 reviews	Search Southwest flights
United Airlines	PriceFrom $118	Free Cancellation	Rating 7.4 9,134 reviews	Search United Airlines flights
Breeze Airways	PriceFrom $121	Free Cancellation	Rating 8.2 251 reviews	Search Breeze Airways flights
American Airlines	PriceFrom $129	Free Cancellation	Rating 7.2 11,072 reviews	Search American 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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Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $32

Flights to Los Angelesfrom $38

Flights to Miamifrom $51

Flights to Chicagofrom $58

Flights to Orlandofrom $29

Flights to San Franciscofrom $53

Flights to Las Vegasfrom $53

Flights to Washington, D.C.from $56

Flights to Bostonfrom $54

Flights to Atlantafrom $38

Flights to Dallasfrom $51

Flights to Seattlefrom $56

North America flight routes

Flights from Tampa to Tweed-New Haven

Flights from New Orleans Louis Armstrong to Baltimore/Washington

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

Flights from Las Vegas Harry Reid Intl to Austin Bergstrom

Flights from Orlando to Harrisburg

Flights from Islip Long Island to Wilmington New Hanover County

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 1/14. 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

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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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Spirit Airlines flights from North America to Illinois

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

JetBlue flights from North America to Illinois

Our best JetBlue 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

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 $272. Flights at noon are often more expensive with an average ticket price of $454.

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 Delta 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 January 2026, there are 346 flights per day flying from North America to Illinois. The most common time of day flights depart is 6:00AM, with 48% of flights taking off at noon.

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

2,425 flights are operational weekly from North America to Illinois as of January 2026. The most popular departure day for this route is Thu, with 22% 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