How many flights depart from Illinois to United States on average per day?

416 flights are operational daily from Illinois to United States as of February 2026. The most popular departure time for this route is 6:00PM, with 42% of flights per day taking off at noon.

How long is the flight from Illinois to United States?

Flight times vary depending on what airport in Illinois you fly out of and what airport in United States you fly into. For example, flying from Chicago to Los Angeles takes 4h 17m on average. On the other hand, flying from Peoria to Los Angeles takes 6h 26m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What is the cheapest airline that flies from Illinois to United States?

United Airlines, Spirit Airlines, and Delta are the most popular carriers operating from Illinois to United States

How many flights depart from Illinois to United States on average per week?

As of February 2026, there are 2,914 flights per week flying from Illinois to United States. The most common day of the week flights depart is Fri, with 18% of flights taking off on this day.

What airlines fly to United States?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to United States from Illinois according to our data. American Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 12 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to United States?

Prices for flights from Illinois to United States refresh daily.

How many operators does momondo search for flights from Illinois to United States?

There are 9 operators available for flights from Illinois to United States as of February 2026.

How old do you have to be to fly from Illinois to United States?

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 Illinois to United States.

What documentation or ID do you need to fly to United States?

The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$36 Cheap Flights from Illinois to the United States in 2026

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Find the cheapest flights from Illinois to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:05 pm - 3:29 pm

ORD

JFK

2h 24mnonstop

4:29 pm - 6:29 pm

JFK

ORD

3h 00mnonstop

$81Frontier

Thu, Mar 12 - Tue, Mar 17

12:05 pm - 3:29 pm

ORD

JFK

2h 24mnonstop

4:29 pm - 6:29 pm

JFK

ORD

3h 00mnonstop

$82Frontier

Thu, Mar 12 - Thu, Mar 19

5:15 am - 9:22 am

ORD

FLL

3h 07mnonstop

5:28 pm - 7:51 pm

FLL

ORD

3h 23mnonstop

$87Spirit Airlines

Wed, Mar 11 - Thu, Mar 12

8:16 pm - 9:58 am

ORD

DFW

13h 42m

1 stop

12:37 pm - 3:15 pm

DFW

ORD

2h 38mnonstop

$87Multiple Airlines

Tue, Mar 10 - Tue, Mar 17

7:15 pm - 11:24 pm

ORD

FLL

3h 09mnonstop

6:39 pm - 9:17 pm

FLL

ORD

3h 38mnonstop

$88Multiple Airlines

Fri, Apr 17 - Thu, Apr 23

5:34 pm - 9:40 pm

ORD

FLL

3h 06mnonstop

9:50 pm - 12:14 am

FLL

ORD

3h 24mnonstop

$91Spirit Airlines

Wed, Apr 15 - Mon, Apr 20

5:53 pm - 11:08 pm

ORD

HOU

5h 15m

1 stop

10:48 am - 4:42 pm

HOU

ORD

5h 54m

1 stop

$197Delta

Mon, Apr 13 - Sat, Apr 18

5:53 pm - 11:08 pm

ORD

HOU

5h 15m

1 stop

5:23 pm - 10:21 pm

HOU

ORD

4h 58m

1 stop

$198Delta

Fri, Apr 17 - Tue, Apr 21

11:55 am - 5:50 pm

ORD

HOU

5h 55m

1 stop

6:00 am - 11:10 am

HOU

ORD

5h 10m

1 stop

$210Southwest

Tue, Apr 7 - Wed, Apr 15

12:55 pm - 7:25 pm

ORD

HOU

6h 30m

1 stop

6:10 am - 2:30 pm

HOU

ORD

8h 20m

1 stop

$217Southwest

Sat, Apr 11 - Sat, Apr 18

American Airlines flights from Illinois to United States

Our best American Airlines deals on Illinois to United States flight tickets

American Airlines

Apr 8

ORD3:00 pmChicago O'Hare Intl

4h 00m

PHX5:00 pmPhoenix Sky Harbor Intl

Apr 13

PHX11:59 pmPhoenix Sky Harbor Intl

3h 22m

ORD5:21 amChicago O'Hare Intl

$176

American Airlines

Apr 9

ORD9:13 pmChicago O'Hare Intl

4h 37m

LAX11:50 pmLos Angeles

Apr 14

LAX6:04 amLos Angeles

4h 16m

ORD12:20 pmChicago O'Hare Intl

$197

American Airlines

Mar 11

ORD6:10 amChicago O'Hare Intl

5h 38m

1 stop

HOU11:48 amHouston Hobby

Mar 15

HOU6:00 amHouston Hobby

5h 03m

1 stop

ORD11:03 amChicago O'Hare Intl

$404

Spirit Airlines flights from Illinois to United States

Our best Spirit Airlines deals on Illinois to United States flight tickets

Spirit Airlines

Mar 7

ORD8:16 pmChicago O'Hare Intl

3h 17m

FLL12:33 amFort Lauderdale

Mar 11

FLL4:44 pmFort Lauderdale

3h 27m

ORD7:11 pmChicago O'Hare Intl

$87

Spirit Airlines

Apr 15

ORD5:34 pmChicago O'Hare Intl

3h 06m

FLL9:40 pmFort Lauderdale

Apr 20

FLL9:50 pmFort Lauderdale

3h 24m

ORD12:14 amChicago O'Hare Intl

$91

Spirit Airlines

Apr 22

ORD7:20 pmChicago O'Hare Intl

2h 38m

DFW9:58 pmDallas/Fort Worth

Apr 29

DFW5:30 amDallas/Fort Worth

10h 34m

1 stop

ORD4:04 pmChicago O'Hare Intl

$95

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Thu 3/12

12:05 pm-3:29 pm

Nonstop2h 24m

New York John F Kennedy Intl

Tue 3/17

4:29 pm-6:29 pm

Nonstop3h 00m

$81

ChicagoNew York

ORD - JFK

ORDJFK

Chicago O'Hare Intl

Thu 3/12

12:05 pm-3:29 pm

Nonstop2h 24m

New York John F Kennedy Intl

Thu 3/19

4:29 pm-6:29 pm

Nonstop3h 00m

$82

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Wed 3/11

5:15 am-9:22 am

Nonstop3h 07m

Fort Lauderdale

Thu 3/12

5:28 pm-7:51 pm

Nonstop3h 23m

$87

ChicagoDallas

ORD - DFW

ORDDFW

Chicago O'Hare Intl

Tue 3/10

8:16 pm-9:58 am

1 stop13h 42m

Dallas/Fort Worth

Tue 3/17

12:37 pm-3:15 pm

Nonstop2h 38m

$87

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Fri 4/17

7:15 pm-11:24 pm

Nonstop3h 09m

Fort Lauderdale

Thu 4/23

6:39 pm-9:17 pm

Nonstop3h 38m

$88

ChicagoFort Lauderdale

ORD - FLL

ORDFLL

Chicago O'Hare Intl

Wed 4/15

5:34 pm-9:40 pm

Nonstop3h 06m

Fort Lauderdale

Mon 4/20

9:50 pm-12:14 am

Nonstop3h 24m

$91

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Mon 4/13

5:53 pm-11:08 pm

1 stop5h 15m

Houston Hobby

Sat 4/18

10:48 am-4:42 pm

1 stop5h 54m

$197

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Fri 4/17

5:53 pm-11:08 pm

1 stop5h 15m

Houston Hobby

Tue 4/21

5:23 pm-10:21 pm

1 stop4h 58m

$198

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Tue 4/7

11:55 am-5:50 pm

1 stop5h 55m

Houston Hobby

Wed 4/15

6:00 am-11:10 am

1 stop5h 10m

$210

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Sat 4/11

12:55 pm-7:25 pm

1 stop6h 30m

Houston Hobby

Sat 4/18

6:10 am-2:30 pm

1 stop8h 20m

$217

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 Illinois to United States

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 United States?

In general, January is the cheapest month to fly from Illinois to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $160. If you aren’t able to travel during the month of January, then book flights to United States from Illinois during April instead. Flights to United States in April, while not as cheap as those in January, still average around $189.

What is the cheapest day to depart on your flight to United States?

According to our data, Friday is the cheapest day to fly to United States from Illinois. The lowest ticket price found for a Friday departure recently was $258. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $373. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $227. Try not to purchase tickets at noon because they tend to be around $375. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Illinois to United States flight route?

Fly from Chicago Midway to Newark for the best Illinois - United States flight prices

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $212 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Illinois for as low as $146 on momondo.

What cabin class options are available on Illinois to United States flights?

There are 4 cabin classes available to choose from on Illinois to United States 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 Illinois to United States flights?

No. A direct flight is the cheapest option for a flight between Illinois to United States.

Cheap Illinois to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to United States

Best Price Found	$27
Fastest flight time	0h 45m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sat
Airports in United States	4,297 airports

The best one-way flight to United States from Illinois in the past 72 hours is $27. The best round-trip flight deal from Illinois to United States found on momondo in the last 72 hours is $56.

The fastest flight from Illinois to United States takes 0h 45m

Direct flights go from Illinois to United States on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. Airlines offering direct flights are: United Airlines, Southwest and Delta.

There are 4,297 airports in United States. From Illinois there are direct flights to New York John F Kennedy Intl (JFK).

Search flight deals

When did momondo last update prices for flights from Illinois to United States?
Prices for flights from Illinois to United States refresh daily.
How many operators does momondo search for flights from Illinois to United States?
There are 9 operators available for flights from Illinois to United States as of February 2026.
How old do you have to be to fly from Illinois to United States?
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 Illinois to United States.
What documentation or ID do you need to fly to United States?
The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Illinois to United States?
momondo data reveals that the most frequently booked plane model on the route from Illinois to United States is Boeing 737-800, representing 17.80% of all bookings. The subsequent popular models are Airbus A321neo at 17.29%, Boeing 737-900 at 8.62%, and Boeing 737 MAX 8 at 7.01%.

Best airlines flying from Illinois to United States

Compare and see reviews for airlines that fly from Illinois to United States with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $37	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $40	Free Cancellation	Rating 6.3 8,492 reviews	Search Spirit Airlines flights
Allegiant Air	PriceFrom $56	Free Cancellation	Rating 7.2 715 reviews	Search Allegiant Air flights
JetBlue	PriceFrom $62	Free Cancellation	Rating 7.2 2,896 reviews	Search JetBlue flights
Delta	PriceFrom $85	Free Cancellation	Rating 7.9 8,241 reviews	Search Delta flights
Breeze Airways	PriceFrom $88	Free Cancellation	Rating 8.1 271 reviews	Search Breeze Airways flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,837 reviews	Search Hawaiian Airlines flights
Sun Country Air	PriceFrom $112	Free Cancellation	Rating 6.8 340 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 9,358 reviews	Search United Airlines flights
American Airlines	PriceFrom $117	Free Cancellation	Rating 7.2 11,361 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to United States?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to United States. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to United States with flexible booking policies on momondo?

momondo does allow users to show only those flights to United States from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to United States?

momondo helps you find the best flight between Illinois and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Illinois to United States right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to United States flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Popular cities in the United States

Flights to New Yorkfrom $56

Flights to Los Angelesfrom $52

Flights to Miamifrom $36

Flights to Orlandofrom $56

Flights to Chicagofrom $53

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $30

Flights to Washington, D.C.from $56

Flights to Bostonfrom $75

Flights to Atlantafrom $49

Flights to Dallasfrom $54

Flights to Seattlefrom $48

Cheap flights from Illinois to the United States from $36

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to the United States departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Illinois to United States

Our best American Airlines deals on Illinois to United States flight tickets

Spirit Airlines flights from Illinois to United States

Our best Spirit Airlines deals on Illinois to United States flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to the United States that are best for you.

See travel insights to the United States from

How to get the cheapest flight ticket from Illinois to United States

What is the cheapest month to fly to United States?

What is the cheapest day to depart on your flight to United States?

What is the cheapest time of day to depart on your flight to United States?

What is the cheapest Illinois to United States flight route?

How far in advance should I book a flight to United States?

What cabin class options are available on Illinois to United States flights?

Can stopping save me money on Illinois to United States flights?

What is the cheapest airline that flies from Illinois to United States?

What airlines fly to United States?

How many flights depart from Illinois to United States on average per day?

How many flights depart from Illinois to United States on average per week?

How long is the flight from Illinois to United States?

Cheap Illinois to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to United States

Best Price Found

Fastest flight time

Direct flights

Airports in United States

Best airlines flying from Illinois to United States

Compare and see reviews for airlines that fly from Illinois to United States with momondo

Why use momondo?

An easier way to manage your United States 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 the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Illinois flight routes

According to popular flight searches on momondo this year

United States flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to the United States

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to the United States

List of cabin classes available on flights landing in the United States. Availability may vary depending on flight origin and airline.

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