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Cheap flights from the United States to Illinois from $24

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 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.
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Find the cheapest flights from the United States to Illinois

Cheap round-trip flights

These are some of the best round-trip flight deals from the United States to Illinois that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from the United States to Illinois.

Cheap last minute flights

Planning a quick getaway from the United States to Illinois? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Illinois, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from theUnited States to Illinois

Find recent round-trip train or bus tickets from the United States to Illinois.

All round-trip flight deals to Illinois

The cheapest plane tickets to Illinois found on KAYAK recently.
3:37 pm - 4:56 pmATL-ORD
2h 19mnonstop
5:40 pm - 9:03 pmORD-ATL
2h 23mnonstop
$40Frontier
Find Deal
Wed, Feb 12 - Sat, Feb 15
10:30 am - 11:47 amATL-ORD
2h 17mnonstop
5:02 pm - 8:24 pmORD-ATL
2h 22mnonstop
$47Frontier
Find Deal
Wed, Jan 8 - Thu, Jan 9
9:56 am - 12:30 pmDFW-ORD
2h 34mnonstop
1:35 pm - 4:19 pmORD-DFW
2h 44mnonstop
$51Spirit Airlines
Find Deal
Thu, Jan 16 - Mon, Jan 20
9:56 am - 12:30 pmDFW-ORD
2h 34mnonstop
1:35 pm - 4:19 pmORD-DFW
2h 44mnonstop
$55Spirit Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
3:50 pm - 5:38 pmJFK-ORD
2h 48mnonstop
11:40 am - 2:55 pmORD-JFK
2h 15mnonstop
$117American Airlines
Find Deal
Wed, Jan 8 - Tue, Jan 14
7:20 am - 9:02 amLGA-ORD
2h 42mnonstop
12:00 pm - 3:20 pmORD-LGA
2h 20mnonstop
$117United Airlines
Find Deal
Sat, Jan 18 - Sat, Jan 25
9:00 am - 10:47 amJFK-ORD
2h 47mnonstop
4:22 pm - 7:40 pmORD-JFK
2h 18mnonstop
$118American Airlines
Find Deal
Thu, Jan 23 - Mon, Jan 27
8:00 am - 9:55 amJFK-ORD
2h 55mnonstop
7:05 am - 10:31 amORD-JFK
2h 26mnonstop
$127Delta
Find Deal
Sat, Jan 18 - Mon, Jan 20
5:16 pm - 6:55 pmLGA-ORD
2h 39mnonstop
1:00 pm - 4:11 pmORD-LGA
2h 11mnonstop
$132United Airlines
Find Deal
Fri, Jan 24 - Mon, Feb 3
8:05 am - 10:05 amJFK-ORD
3h 00mnonstop
6:20 pm - 10:01 pmORD-JFK
2h 41mnonstop
$137Delta
Find Deal
Mon, Dec 16 - Mon, Dec 16
12:15 pm - 1:34 pmATL-ORD
2h 19mnonstop
$24Frontier
Find Deal
Tue, Jan 14
10:30 am - 11:47 amATL-ORD
2h 17mnonstop
$28Frontier
Find Deal
Wed, Jan 8
5:35 pm - 7:19 pmEWR-ORD
2h 44mnonstop
$30Spirit Airlines
Find Deal
Wed, Jan 8
4:18 pm - 5:31 amLAX-ORD
11h 13m1 stop
$31Spirit Airlines
Find Deal
Tue, Jan 14
6:00 am - 7:49 amLGA-ORD
2h 49mnonstop
$59American Airlines
Find Deal
Sat, Dec 14
6:00 am - 7:49 amLGA-ORD
2h 49mnonstop
$60American Airlines
Find Deal
Sat, Dec 14
8:05 am - 10:05 amJFK-ORD
3h 00mnonstop
$68Delta
Find Deal
Thu, Dec 12
8:55 am - 10:42 amLGA-ORD
2h 47mnonstop
$68Delta
Find Deal
Tue, Dec 10
1:07 pm - 2:48 pmEWR-ORD
2h 41mnonstop
$69United Airlines
Find Deal
Wed, Feb 5
7:58 pm - 9:43 pmEWR-ORD
2h 45mnonstop
$74United Airlines
Find Deal
Sun, Feb 9
9:29 pm - 11:07 pmLGA-ORD
2h 38mnonstop
10:43 am - 2:00 pmORD-LGA
2h 17mnonstop
$75Spirit Airlines
Find Deal
Mon, Dec 9 - Mon, Dec 16
3:10 pm - 5:40 pmDFW-ORD
2h 30mnonstop
5:25 am - 8:03 amORD-DFW
2h 38mnonstop
$76Spirit Airlines
Find Deal
Tue, Dec 10 - Thu, Dec 12
8:05 am - 10:05 amJFK-ORD
3h 00mnonstop
6:20 pm - 10:01 pmORD-JFK
2h 41mnonstop
$137Delta
Find Deal
Mon, Dec 9 - Mon, Dec 9
2:55 pm - 4:35 pmLGA-ORD
2h 40mnonstop
12:10 pm - 3:22 pmORD-LGA
2h 12mnonstop
$137Delta
Find Deal
Mon, Dec 9 - Tue, Dec 10
9:00 am - 10:58 amJFK-ORD
2h 58mnonstop
4:28 pm - 7:40 pmORD-JFK
2h 12mnonstop
$147American Airlines
Find Deal
Tue, Dec 10 - Wed, Dec 11
6:15 am - 12:13 amDFW-MDW
17h 58m1 stop
6:20 am - 9:07 amMDW-DFW
2h 47mnonstop
$160Frontier
Find Deal
Tue, Dec 10 - Tue, Dec 17
3:55 pm - 5:42 pmJFK-ORD
2h 47mnonstop
4:28 pm - 7:40 pmORD-JFK
2h 12mnonstop
$172American Airlines
Find Deal
Mon, Dec 9 - Tue, Dec 10
5:45 am - 9:34 amBOS-ORD
4h 49m1 stop
2:50 pm - 9:27 pmORD-BOS
5h 37m1 stop
$176United Airlines
Find Deal
Mon, Dec 9 - Mon, Dec 9
11:44 am - 1:15 pmEWR-ORD
2h 31mnonstop
6:05 pm - 9:25 pmORD-EWR
2h 20mnonstop
$177United Airlines
Find Deal
Tue, Dec 10 - Tue, Dec 10
6:15 am - 12:13 amDFW-MDW
17h 58m1 stop
6:49 pm - 1:18 pmMDW-DFW
18h 29m1 stop
$188Frontier
Find Deal
Tue, Dec 10 - Tue, Dec 17
3:37 pm - 4:56 pmATL-ORD
2h 19mnonstop
5:40 pm - 9:03 pmORD-ATL
2h 23mnonstop
$40Frontier
Find Deal
Wed, Feb 12 - Sat, Feb 15
10:30 am - 11:47 amATL-ORD
2h 17mnonstop
5:02 pm - 8:24 pmORD-ATL
2h 22mnonstop
$47Frontier
Find Deal
Wed, Jan 8 - Thu, Jan 9
9:56 am - 12:30 pmDFW-ORD
2h 34mnonstop
1:35 pm - 4:19 pmORD-DFW
2h 44mnonstop
$51Spirit Airlines
Find Deal
Thu, Jan 16 - Mon, Jan 20
9:56 am - 12:30 pmDFW-ORD
2h 34mnonstop
1:35 pm - 4:19 pmORD-DFW
2h 44mnonstop
$55Spirit Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
3:50 pm - 5:38 pmJFK-ORD
2h 48mnonstop
11:40 am - 2:55 pmORD-JFK
2h 15mnonstop
$117American Airlines
Find Deal
Wed, Jan 8 - Tue, Jan 14
7:20 am - 9:02 amLGA-ORD
2h 42mnonstop
12:00 pm - 3:20 pmORD-LGA
2h 20mnonstop
$117United Airlines
Find Deal
Sat, Jan 18 - Sat, Jan 25
3:50 pm - 5:38 pmJFK-ORD
2h 48mnonstop
4:22 pm - 7:40 pmORD-JFK
2h 18mnonstop
$118American Airlines
Find Deal
Wed, Jan 15 - Thu, Jan 23
8:00 am - 9:55 amJFK-ORD
2h 55mnonstop
7:05 am - 10:31 amORD-JFK
2h 26mnonstop
$127Delta
Find Deal
Sat, Jan 18 - Mon, Jan 20
8:15 am - 9:51 amLGA-ORD
2h 36mnonstop
8:00 am - 11:12 amORD-LGA
2h 12mnonstop
$132United Airlines
Find Deal
Fri, Jan 24 - Tue, Jan 28
8:05 am - 10:05 amJFK-ORD
3h 00mnonstop
6:20 pm - 10:01 pmORD-JFK
2h 41mnonstop
$137Delta
Find Deal
Mon, Dec 16 - Mon, Dec 16

United Airlines flights from United States to Illinois

Our best United Airlines deals on United States to Illinois flight tickets
United Airlines
Jan 18
LGA7:20 amNew York LaGuardia
2h 42m
ORD9:02 amChicago O'Hare Intl
Jan 25
ORD12:00 pmChicago O'Hare Intl
2h 20m
LGA3:20 pmNew York LaGuardia
United Airlines
Jan 24
LGA5:16 pmNew York LaGuardia
2h 39m
ORD6:55 pmChicago O'Hare Intl
Feb 3
ORD1:00 pmChicago O'Hare Intl
2h 11m
LGA4:11 pmNew York LaGuardia
United Airlines
Dec 12
LGA8:25 amNew York LaGuardia
2h 39m
ORD10:04 amChicago O'Hare Intl
Dec 14
ORD6:16 pmChicago O'Hare Intl
4h 12m
1 stop
LGA11:28 pmNew York LaGuardia

Spirit Airlines flights from United States to Illinois

Our best Spirit Airlines deals on United States to Illinois flight tickets
Spirit Airlines
Jan 16
DFW9:56 amDallas/Fort Worth
2h 34m
ORD12:30 pmChicago O'Hare Intl
Jan 20
ORD1:35 pmChicago O'Hare Intl
2h 44m
DFW4:19 pmDallas/Fort Worth
Spirit Airlines
Jan 9
DFW9:56 amDallas/Fort Worth
2h 34m
ORD12:30 pmChicago O'Hare Intl
Jan 13
ORD1:35 pmChicago O'Hare Intl
2h 44m
DFW4:19 pmDallas/Fort Worth
Spirit Airlines
Feb 19
DFW12:49 pmDallas/Fort Worth
8h 44m
1 stop
ORD9:33 pmChicago O'Hare Intl
Feb 22
ORD7:20 amChicago O'Hare Intl
2h 13m
DFW9:33 amDallas/Fort Worth

See travel insights to Illinois from

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

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 $238, 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 $258.

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 Saturday when prices can be found for as low as $291. Flights from United States to Illinois on a Sunday will generally be more expensive and average around $337. 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 evening. Flights from United States to Illinois during this time can be as low as $278. Flights at noon are often more expensive with an average ticket price of $348.

What is the cheapest United States to Illinois flight route?

Fly from Atlanta Hartsfield-Jackson to Chicago Midway for the best United States - Illinois flight prices

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?

You could potentially save up to 33% on your flight if you consider stops on a United States to Illinois flight.

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

$24

Fastest flight time

2h 00m

Direct flights

Every day

Airports in Illinois

2 airports
The best one-way flight to Illinois from United States in the past 72 hours is $24. The best round-trip flight deal from United States to Illinois found on momondo in the last 72 hours is $40.
The fastest flight from United States to Illinois takes 2h 00m
Direct flights go from United States to Illinois every day.
There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

  • 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?

  • 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?


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
Spirit AirlinesPriceFrom $35Free CancellationRating
6.3
8,143 reviews
Search Spirit Airlines flights
FrontierPriceFrom $46Free CancellationRating
6.1
3,506 reviews
Search Frontier flights
Allegiant AirPriceFrom $49Free CancellationRating
7.3
839 reviews
Search Allegiant Air flights
Breeze AirwaysPriceFrom $75Free CancellationRating
8.1
132 reviews
Search Breeze Airways flights
JetBluePriceFrom $82Free CancellationRating
7.4
3,332 reviews
Search JetBlue flights
DeltaPriceFrom $94Free CancellationRating
8.0
8,682 reviews
Search Delta flights
Alaska AirlinesPriceFrom $115Free CancellationRating
8.0
9,519 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $117Free CancellationRating
7.4
9,134 reviews
Search United Airlines flights
American AirlinesPriceFrom $135Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $147Free CancellationRating
8.1
4,934 reviews
Search Southwest 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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