How long is the flight from United States to Illinois?

The flight from United States to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from New York (a popular airport in United States) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 2h 40m on average. If you fly from Boston (another popular airport in United States) to Chicago O'Hare Intl Airport, then the average flight time is 2h 51m.

What airlines fly to Illinois?

American Airlines, United Airlines and Frontier are the top three most popular airlines that fly to Illinois from United States 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 13 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 United States to Illinois on average per day?

As of March 2026, 275 flights take off from United States and land in Illinois each day. The most common flight departure time for this route is 8:00AM, with 45% of daily flights taking off at noon.

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

The number of flights available between United States and Illinois is 1,927 per week as of March 2026. The most frequent departure day is Tue, with 27% of weekly flights leaving on this day.

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

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

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

Prices for flights from United States to Illinois refresh daily.

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

As of March 2026, there are 10 operators available to choose from for flights from United States to Illinois.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Illinois.

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

The travel and health documents required for your trip to Illinois 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 Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$50 Cheap Flights from the United States to Illinois in 2026

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Find the cheapest flights from the United States to Illinois

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from the United States to Illinois

Enter your travel dates to find the best prices.

10:24 pm - 12:59 am

DFW

ORD

2h 35mnonstop

3:23 pm - 6:27 pm

ORD

DFW

3h 04mnonstop

$74Frontier

Mon, Apr 20 - Sat, Apr 25

11:30 am - 2:07 pm

DFW

ORD

2h 37mnonstop

10:23 am - 1:19 pm

ORD

DFW

2h 56mnonstop

$75Frontier

Sat, Apr 25 - Sat, May 2

8:42 am - 10:20 am

LGA

ORD

2h 38mnonstop

7:31 pm - 10:36 pm

ORD

LGA

2h 05mnonstop

$84Spirit Airlines

Mon, Mar 23 - Mon, Mar 30

6:30 am - 8:01 am

LGA

ORD

2h 31mnonstop

2:09 pm - 5:20 pm

ORD

LGA

2h 11mnonstop

$85Spirit Airlines

Mon, Apr 13 - Mon, Apr 20

6:00 am - 7:29 am

DCA

ORD

2h 29mnonstop

9:01 pm - 11:57 pm

ORD

DCA

1h 56mnonstop

$186American Airlines

Sat, May 2 - Mon, May 4

12:29 pm - 6:34 pm

DCA

ORD

7h 05m

1 stop

5:40 pm - 10:51 pm

ORD

DCA

4h 11m

1 stop

$188Delta

Wed, Apr 8 - Fri, Apr 10

6:00 am - 10:19 am

IAD

ORD

5h 19m

1 stop

5:04 pm - 11:03 pm

ORD

IAD

4h 59m

1 stop

$188Delta

Fri, Apr 24 - Mon, Apr 27

5:55 am - 7:24 am

DCA

ORD

2h 29mnonstop

6:08 am - 9:05 am

ORD

DCA

1h 57mnonstop

$190American Airlines

Wed, Apr 8 - Thu, Apr 9

8:00 pm - 9:35 pm

DCA

ORD

2h 35mnonstop

6:00 am - 8:56 am

ORD

DCA

1h 56mnonstop

$197United Airlines

Tue, Mar 24 - Tue, Mar 31

12:45 am - 7:07 am

SFO

ORD

4h 22mnonstop

7:40 am - 10:38 am

ORD

SFO

4h 58mnonstop

$231United Airlines

Sat, Apr 18 - Fri, Apr 24

Spirit Airlines flights from United States to Illinois

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

Spirit Airlines

Mar 23

LGA8:42 amNew York LaGuardia

2h 38m

ORD10:20 amChicago O'Hare Intl

Mar 30

ORD7:31 pmChicago O'Hare Intl

2h 05m

LGA10:36 pmNew York LaGuardia

$84

Spirit Airlines

Apr 13

LGA6:30 amNew York LaGuardia

2h 31m

ORD8:01 amChicago O'Hare Intl

Apr 20

ORD2:09 pmChicago O'Hare Intl

2h 11m

LGA5:20 pmNew York LaGuardia

$85

Spirit Airlines

Apr 28

LGA6:15 pmNew York LaGuardia

2h 42m

ORD7:57 pmChicago O'Hare Intl

May 4

ORD2:09 pmChicago O'Hare Intl

2h 11m

LGA5:20 pmNew York LaGuardia

$86

Frontier flights from United States to Illinois

Our best Frontier deals on United States to Illinois flight tickets

Frontier

Apr 20

DFW10:24 pmDallas/Fort Worth

2h 35m

ORD12:59 amChicago O'Hare Intl

Apr 25

ORD3:23 pmChicago O'Hare Intl

3h 04m

DFW6:27 pmDallas/Fort Worth

$74

Frontier

Apr 25

DFW11:30 amDallas/Fort Worth

2h 37m

ORD2:07 pmChicago O'Hare Intl

May 2

ORD10:23 amChicago O'Hare Intl

2h 56m

DFW1:19 pmDallas/Fort Worth

$75

Frontier

May 14

DFW10:17 pmDallas/Fort Worth

2h 35m

ORD12:52 amChicago O'Hare Intl

May 18

ORD5:11 amChicago O'Hare Intl

2h 49m

DFW8:00 amDallas/Fort Worth

$77

Fly from

Fly to

Route

Depart

Return

Price

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Mon 4/20

10:24 pm-12:59 am

Nonstop2h 35m

Chicago O'Hare Intl

Sat 4/25

3:23 pm-6:27 pm

Nonstop3h 04m

$74

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sat 4/25

11:30 am-2:07 pm

Nonstop2h 37m

Chicago O'Hare Intl

Sat 5/2

10:23 am-1:19 pm

Nonstop2h 56m

$75

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Mon 3/23

8:42 am-10:20 am

Nonstop2h 38m

Chicago O'Hare Intl

Mon 3/30

7:31 pm-10:36 pm

Nonstop2h 05m

$84

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

Mon 4/13

6:30 am-8:01 am

Nonstop2h 31m

Chicago O'Hare Intl

Mon 4/20

2:09 pm-5:20 pm

Nonstop2h 11m

$85

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Sat 5/2

6:00 am-7:29 am

Nonstop2h 29m

Chicago O'Hare Intl

Mon 5/4

9:01 pm-11:57 pm

Nonstop1h 56m

$186

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Wed 4/8

12:29 pm-6:34 pm

1 stop7h 05m

Chicago O'Hare Intl

Fri 4/10

5:40 pm-10:51 pm

1 stop4h 11m

$188

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Fri 4/24

6:00 am-10:19 am

1 stop5h 19m

Chicago O'Hare Intl

Mon 4/27

5:04 pm-11:03 pm

1 stop4h 59m

$188

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Wed 4/8

5:55 am-7:24 am

Nonstop2h 29m

Chicago O'Hare Intl

Thu 4/9

6:08 am-9:05 am

Nonstop1h 57m

$190

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

Tue 3/24

8:00 pm-9:35 pm

Nonstop2h 35m

Chicago O'Hare Intl

Tue 3/31

6:00 am-8:56 am

Nonstop1h 56m

$197

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 4/18

12:45 am-7:07 am

Nonstop4h 22m

Chicago O'Hare Intl

Fri 4/24

7:40 am-10:38 am

Nonstop4h 58m

$231

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 United States 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 United States is in January. 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 January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $211.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from United States to Illinois is on a Thursday when prices can be found for as low as $357. Flights from United States to Illinois on a Sunday will generally be more expensive and average around $433. 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 United States to Illinois during this time can be as low as $276. Flights at noon are often more expensive with an average ticket price of $452.

What is the cheapest United States to Illinois flight route?

Fly from Newark to Chicago Midway for the best United States - 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 United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $235 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from United States for as low as $152 on momondo.

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

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

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

Cheap United States to Illinois flight deals and tips

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

Best Price Found	$28
Fastest flight time	0h 50m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from United States in the past 72 hours is $28. The best round-trip flight deal from United States to Illinois found on momondo in the last 72 hours is $56.

The fastest flight from United States to Illinois takes 0h 50m

Direct flights go from United States to Illinois every day.

There are 98 airports in Illinois. From United States there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

When did momondo last update prices for flights from United States to Illinois?
Prices for flights from United States to Illinois refresh daily.
How many operators does momondo search for flights from United States to Illinois?
As of March 2026, there are 10 operators available to choose from for flights from United States to Illinois.
How old do you have to be to fly from United States to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois 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 Illinois. 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 United States to Illinois?
Based on momondo bookings for flights between United States and Illinois, the leading plane model is Boeing 737-800, making up 20.29% of the total bookings. Other popular models include Airbus A321neo with 14.35%, Boeing 737-900 with 9.54%, and Embraer 175 with 7.56%.

Best airlines flying from United States to Illinois

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $43	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $46	Free Cancellation	Rating 6.3 8,489 reviews	Search Spirit Airlines flights
Allegiant Air	PriceFrom $57	Free Cancellation	Rating 7.3 715 reviews	Search Allegiant Air flights
JetBlue	PriceFrom $66	Free Cancellation	Rating 7.2 2,896 reviews	Search JetBlue flights
Delta	PriceFrom $75	Free Cancellation	Rating 7.9 8,246 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $101	Free Cancellation	Rating 7.8 2,836 reviews	Search Hawaiian Airlines flights
Southwest	PriceFrom $117	Free Cancellation	Rating 8.0 4,305 reviews	Search Southwest flights
United Airlines	PriceFrom $117	Free Cancellation	Rating 7.4 9,381 reviews	Search United Airlines flights
Breeze Airways	PriceFrom $121	Free Cancellation	Rating 8.1 271 reviews	Search Breeze Airways flights
American Airlines	PriceFrom $127	Free Cancellation	Rating 7.1 11,376 reviews	Search American Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from United States.

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

Yes. momondo allows you to filter the results for United States to Illinois flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Illinois from United States. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Illinois from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Popular cities in Illinois

Flights to New Yorkfrom $37

Flights to Los Angelesfrom $46

Flights to Miamifrom $52

Flights to Orlandofrom $36

Flights to Chicagofrom $56

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $55

Flights to Washington, D.C.from $56

Flights to Bostonfrom $77

Flights to Atlantafrom $49

Flights to Dallasfrom $60

Flights to Seattlefrom $55

Cheap flights from the United States to Illinois from $50

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Illinois departing on 5/20. 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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Find the cheapest flights from the United States to Illinois

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Spirit Airlines flights from United States to Illinois

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

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How to get the cheapest flight ticket from United States 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?

What is the cheapest United States to Illinois flight route?

How far in advance should I book a flight to Illinois?

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

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

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

What airlines fly to Illinois?

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

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

How long is the flight from United States to Illinois?

Cheap United States to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Best airlines flying from United States to Illinois

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

Why use momondo?

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

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According to popular flight searches on momondo this year

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