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

3,616 flights are operational weekly from North America to Illinois as of July 2025. The most popular departure day for this route is Thu, with 18% 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 14 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?

Frontier, JetBlue, and Spirit 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 July 2025, there are 516 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.

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 12 operators available for flights from North America to Illinois as of July 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.

$33 Cheap Flights from North America to Illinois in 2025

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Find the cheapest flights from North America to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

9:52 pm - 12:11 amDFW-MDW

2h 19mnonstop

8:00 am - 10:33 amMDW-DFW

2h 33mnonstop

$65Frontier

Find Deal

mié., oct. 8 - mar., oct. 14

9:27 pm - 11:58 pmDFW-ORD

2h 31mnonstop

5:35 pm - 8:22 pmORD-DFW

2h 47mnonstop

$67Frontier

Find Deal

jue., sep. 4 - jue., sep. 11

6:30 pm - 8:00 pmLGA-ORD

2h 30mnonstop

5:51 am - 9:00 amORD-LGA

2h 09mnonstop

$86Spirit Airlines

Find Deal

mar., ago. 5 - mié., ago. 6

6:59 am - 3:31 pmLGA-ORD

9h 32m1 stop

5:51 am - 9:00 amORD-LGA

2h 09mnonstop

$87Spirit Airlines

Find Deal

mar., ago. 5 - mié., ago. 6

7:30 pm - 9:09 pmLGA-ORD

2h 39mnonstop

8:00 pm - 11:22 pmORD-LGA

2h 22mnonstop

$91United Airlines

Find Deal

mar., ago. 5 - sáb., ago. 9

7:45 am - 9:41 amBOS-ORD

2h 56mnonstop

9:15 pm - 12:45 amORD-BOS

2h 30mnonstop

$91United Airlines

Find Deal

jue., ago. 21 - lun., ago. 25

5:20 pm - 7:01 pmLGA-ORD

2h 41mnonstop

6:06 pm - 9:24 pmORD-LGA

2h 18mnonstop

$92American Airlines

Find Deal

jue., sep. 4 - lun., sep. 8

5:28 am - 7:24 amBOS-ORD

2h 56mnonstop

6:15 am - 9:43 amORD-BOS

2h 28mnonstop

$92American Airlines

Find Deal

jue., ago. 21 - lun., ago. 25

8:00 am - 4:25 pmBOS-ORD

9h 25m1 stop

3:10 pm - 10:30 pmORD-BOS

6h 20m1 stop

$99Southwest

Find Deal

sáb., ago. 30 - mié., sep. 3

5:20 am - 11:50 amBOS-ORD

7h 30m1 stop

2:55 pm - 10:35 pmORD-BOS

6h 40m1 stop

$103Southwest

Find Deal

sáb., ago. 23 - lun., ago. 25

United Airlines flights from North America to Illinois

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

United Airlines

Aug 5

LGA7:30 pmNew York LaGuardia

2h 39m

ORD9:09 pmChicago O'Hare Intl

Aug 9

ORD8:00 pmChicago O'Hare Intl

2h 22m

LGA11:22 pmNew York LaGuardia

$91

Find similar

United Airlines

Aug 5

DCA1:00 pmWashington, D.C. Reagan-National

2h 16m

ORD2:16 pmChicago O'Hare Intl

Aug 12

ORD9:00 amChicago O'Hare Intl

1h 59m

DCA11:59 amWashington, D.C. Reagan-National

$93

Find similar

United Airlines

Sep 5

LGA2:20 pmNew York LaGuardia

2h 37m

ORD3:57 pmChicago O'Hare Intl

Sep 8

ORD6:30 pmChicago O'Hare Intl

2h 24m

LGA9:54 pmNew York LaGuardia

$98

Find similar

Delta flights from North America to Illinois

Our best Delta deals on North America to Illinois flight tickets

Delta

Aug 22

BOS7:55 pmBoston Logan Intl

2h 59m

ORD9:54 pmChicago O'Hare Intl

Aug 23

ORD7:00 amChicago O'Hare Intl

2h 29m

BOS10:29 amBoston Logan Intl

$117

Find similar

Delta

Aug 30

BOS11:34 amBoston Logan Intl

2h 51m

ORD1:25 pmChicago O'Hare Intl

Sep 6

ORD11:05 amChicago O'Hare Intl

6h 32m

1 stop

BOS6:37 pmBoston Logan Intl

$127

Find similar

Delta

Jul 16

BOS11:31 amBoston Logan Intl

2h 53m

ORD1:24 pmChicago O'Hare Intl

Aug 19

ORD7:20 pmChicago O'Hare Intl

2h 38m

BOS10:58 pmBoston Logan Intl

$177

Find similar

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 September. Flight prices, which tend to average around $177, 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 September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $180.

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 $358. Flights from North America to Illinois on a Sunday will generally be more expensive and average around $464. 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 $288. Flights at noon are often more expensive with an average ticket price of $441.

What is the cheapest North America to Illinois flight route?

Fly from Atlanta Hartsfield-Jackson to Chicago O'Hare Intl 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 $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 $200 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?

You could potentially save up to 10% on your flight if you consider stops on a North America to Illinois flight.

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	$33
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 $33. The best round-trip flight deal from North America to Illinois found on momondo in the last 72 hours is $65.

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)

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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 12 operators available for flights from North America to Illinois as of July 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 (21.06% of total bookings). The next most popular plane models are Airbus A321neo (10.57%), Boeing 737 MAX 8 (8.46%), and Boeing 737-900 (8.34%).

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 $40	Free Cancellation	Rating 6.3 8,055 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $52	Free Cancellation	Rating 5.9 3,271 reviews	Search Frontier flights
Allegiant Air	PriceFrom $54	Free Cancellation	Rating 7.2 704 reviews	Search Allegiant Air flights
JetBlue	PriceFrom $76	Free Cancellation	Rating 7.3 2,910 reviews	Search JetBlue flights
Delta	PriceFrom $94	Free Cancellation	Rating 8.0 7,952 reviews	Search Delta flights
United Airlines	PriceFrom $97	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,561 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $125	Free Cancellation	Rating 8.0 4,250 reviews	Search Southwest flights
Sun Country Air	PriceFrom $130	Free Cancellation	Rating 6.9 335 reviews	Search Sun Country Air flights
American Airlines	PriceFrom $136	Free Cancellation	Rating 7.2 10,000 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.

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Popular cities in Illinois

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Flights to Seattlefrom $82

Cheap flights from North America to Illinois from $33

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 10/14. 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

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

United Airlines flights from North America to Illinois

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

Delta flights from North America to Illinois

Our best Delta deals on North America to Illinois flight tickets

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 $288. Flights at noon are often more expensive with an average ticket price of $441.

What is the cheapest North America to Illinois flight route?

Fly from Atlanta Hartsfield-Jackson to Chicago O'Hare Intl 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?

You could potentially save up to 10% on your flight if you consider stops on a North America to Illinois flight.

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

Frontier, JetBlue, and Spirit 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 July 2025, there are 516 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?

3,616 flights are operational weekly from North America to Illinois as of July 2025. The most popular departure day for this route is Thu, with 18% 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