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Cheap flights from the United States to Illinois from $28

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 1/15. 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.
7:17 am - 9:51 amDFW-ORD
2h 34mnonstop
10:56 am - 1:43 pmORD-DFW
2h 47mnonstop
$52Frontier
Find Deal
Wed, Feb 19 - Wed, Feb 26
11:30 am - 12:45 pmATL-ORD
2h 15mnonstop
1:45 pm - 5:03 pmORD-ATL
2h 18mnonstop
$57Frontier
Find Deal
Wed, Jan 22 - Wed, Jan 29
7:59 am - 9:34 amEWR-ORD
2h 35mnonstop
5:50 am - 9:06 amORD-EWR
2h 16mnonstop
$72Spirit Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 12
9:12 am - 11:20 amMCO-ORD
3h 08mnonstop
6:06 pm - 9:58 pmORD-MCO
2h 52mnonstop
$74Spirit Airlines
Find Deal
Fri, Jan 10 - Sun, Jan 12
7:00 am - 8:46 amEWR-ORD
2h 46mnonstop
6:20 pm - 9:32 pmORD-EWR
2h 12mnonstop
$139American Airlines
Find Deal
Sat, Jan 25 - Sat, Jan 25
7:00 am - 8:46 amEWR-ORD
2h 46mnonstop
6:20 pm - 9:32 pmORD-EWR
2h 12mnonstop
$143American Airlines
Find Deal
Wed, Jan 22 - Wed, Feb 5
11:32 am - 1:10 pmEWR-ORD
2h 38mnonstop
12:51 pm - 4:07 pmORD-EWR
2h 16mnonstop
$147United Airlines
Find Deal
Tue, Jan 14 - Wed, Jan 15
8:00 am - 9:55 amJFK-ORD
2h 55mnonstop
7:05 am - 10:31 amORD-JFK
2h 26mnonstop
$147Delta
Find Deal
Sat, Jan 25 - Tue, Jan 28
6:00 am - 7:50 amLGA-ORD
2h 50mnonstop
8:35 am - 11:55 amORD-LGA
2h 20mnonstop
$147Delta
Find Deal
Fri, Jan 31 - Wed, Feb 5
7:29 pm - 11:15 pmLGA-ORD
4h 46m1 stop
6:00 am - 9:10 amORD-LGA
2h 10mnonstop
$176United Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
10:30 am - 11:47 amATL-ORD
2h 17mnonstop
$28Frontier
Find Deal
Wed, Jan 15
6:10 am - 7:28 amATL-ORD
2h 18mnonstop
$29Frontier
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Wed, Mar 5
9:11 pm - 10:21 pmATL-ORD
2h 10mnonstop
$35Spirit Airlines
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Tue, May 6
7:59 am - 9:34 amEWR-ORD
2h 35mnonstop
$37Spirit Airlines
Find Deal
Fri, Jan 10
10:15 am - 11:28 amATL-ORD
2h 13mnonstop
$69United Airlines
Find Deal
Sat, Jan 25
11:32 am - 1:10 pmEWR-ORD
2h 38mnonstop
$74United Airlines
Find Deal
Sun, Jan 26
9:00 am - 10:47 amJFK-ORD
2h 47mnonstop
$76American Airlines
Find Deal
Sat, Jan 18
10:51 am - 12:40 pmEWR-ORD
2h 49mnonstop
$79American Airlines
Find Deal
Tue, Apr 15
7:30 am - 9:18 amLGA-ORD
2h 48mnonstop
$79Delta
Find Deal
Sat, Feb 22
8:00 am - 1:45 pmEWR-ORD
6h 45m1 stop
$82Delta
Find Deal
Tue, Jan 14
8:52 pm - 10:12 pmATL-ORD
2h 20mnonstop
2:59 pm - 6:16 pmORD-ATL
2h 17mnonstop
$117Frontier
Find Deal
Mon, Dec 30 - Tue, Jan 21
8:52 pm - 10:12 pmATL-ORD
2h 20mnonstop
3:00 pm - 6:17 pmORD-ATL
2h 17mnonstop
$125Frontier
Find Deal
Mon, Dec 30 - Tue, Jan 7
8:35 am - 10:07 amLGA-ORD
2h 32mnonstop
4:45 pm - 8:00 pmORD-LGA
2h 15mnonstop
$172Spirit Airlines
Find Deal
Mon, Dec 30 - Sat, Jan 4
8:35 am - 10:07 amLGA-ORD
2h 32mnonstop
4:45 pm - 8:00 pmORD-LGA
2h 15mnonstop
$174Spirit Airlines
Find Deal
Mon, Dec 30 - Sun, Jan 5
6:35 am - 11:01 amBOS-ORD
5h 26m1 stop
8:30 pm - 12:15 amORD-BOS
2h 45mnonstop
$257American Airlines
Find Deal
Mon, Dec 30 - Fri, Jan 3
6:35 am - 11:01 amBOS-ORD
5h 26m1 stop
10:00 am - 5:40 pmORD-BOS
6h 40m1 stop
$266American Airlines
Find Deal
Mon, Dec 30 - Sat, Jan 4
7:05 am - 8:49 amEWR-ORD
2h 44mnonstop
9:45 pm - 12:57 amORD-EWR
2h 12mnonstop
$266United Airlines
Find Deal
Mon, Dec 30 - Fri, Jan 3
7:29 pm - 9:30 pmJFK-ORD
3h 01mnonstop
6:30 pm - 10:06 pmORD-JFK
2h 36mnonstop
$302Delta
Find Deal
Fri, Dec 27 - Fri, Jan 10
5:51 pm - 11:53 pmJFK-ORD
7h 02m1 stop
2:03 pm - 5:29 pmORD-JFK
2h 26mnonstop
$312Delta
Find Deal
Fri, Dec 27 - Fri, Jan 10
7:29 pm - 11:25 pmLGA-ORD
4h 56m1 stop
8:00 pm - 11:17 pmORD-LGA
2h 17mnonstop
$339United Airlines
Find Deal
Sat, Dec 28 - Sat, Jan 4
7:17 am - 9:51 amDFW-ORD
2h 34mnonstop
10:56 am - 1:43 pmORD-DFW
2h 47mnonstop
$52Frontier
Find Deal
Wed, Feb 19 - Wed, Feb 26
11:30 am - 12:45 pmATL-ORD
2h 15mnonstop
1:45 pm - 5:03 pmORD-ATL
2h 18mnonstop
$57Frontier
Find Deal
Wed, Jan 22 - Wed, Jan 29
7:59 am - 9:34 amEWR-ORD
2h 35mnonstop
5:50 am - 9:06 amORD-EWR
2h 16mnonstop
$72Spirit Airlines
Find Deal
Thu, Jan 9 - Sun, Jan 12
9:12 am - 11:20 amMCO-ORD
3h 08mnonstop
6:06 pm - 9:58 pmORD-MCO
2h 52mnonstop
$74Spirit Airlines
Find Deal
Fri, Jan 10 - Sun, Jan 12
8:48 am - 9:55 amATL-ORD
2h 07mnonstop
2:55 pm - 5:53 pmORD-ATL
1h 58mnonstop
$137Delta
Find Deal
Sat, Jan 25 - Tue, Jan 28
7:00 am - 8:46 amEWR-ORD
2h 46mnonstop
6:20 pm - 9:32 pmORD-EWR
2h 12mnonstop
$139American Airlines
Find Deal
Sat, Jan 25 - Sat, Jan 25
3:00 pm - 4:40 pmEWR-ORD
2h 40mnonstop
5:59 pm - 8:57 pmORD-EWR
1h 58mnonstop
$140American Airlines
Find Deal
Tue, Feb 11 - Tue, Feb 18
11:32 am - 1:10 pmEWR-ORD
2h 38mnonstop
12:51 pm - 4:07 pmORD-EWR
2h 16mnonstop
$147United Airlines
Find Deal
Tue, Jan 14 - Wed, Jan 15
8:00 am - 9:55 amJFK-ORD
2h 55mnonstop
10:05 am - 1:29 pmORD-JFK
2h 24mnonstop
$147Delta
Find Deal
Sat, Jan 25 - Mon, Jan 27
3:45 pm - 4:58 pmATL-ORD
2h 13mnonstop
2:30 pm - 5:38 pmORD-ATL
2h 08mnonstop
$148United Airlines
Find Deal
Wed, Jan 22 - Wed, Jan 29

Frontier flights from United States to Illinois

Our best Frontier deals on United States to Illinois flight tickets
Frontier
Feb 19
DFW7:17 amDallas/Fort Worth
2h 34m
ORD9:51 amChicago O'Hare Intl
Feb 26
ORD10:56 amChicago O'Hare Intl
2h 47m
DFW1:43 pmDallas/Fort Worth
Frontier
Jan 22
ATL11:30 amAtlanta Hartsfield-Jackson
2h 15m
ORD12:45 pmChicago O'Hare Intl
Jan 29
ORD1:45 pmChicago O'Hare Intl
2h 18m
ATL5:03 pmAtlanta Hartsfield-Jackson
Frontier
Mar 1
ATL6:00 amAtlanta Hartsfield-Jackson
2h 18m
ORD7:18 amChicago O'Hare Intl
Mar 8
ORD2:25 pmChicago O'Hare Intl
2h 17m
ATL5:42 pmAtlanta Hartsfield-Jackson

Spirit Airlines flights from United States to Illinois

Our best Spirit Airlines deals on United States to Illinois flight tickets
Spirit Airlines
Jan 9
EWR7:59 amNewark
2h 35m
ORD9:34 amChicago O'Hare Intl
Jan 12
ORD5:50 amChicago O'Hare Intl
2h 16m
EWR9:06 amNewark
Spirit Airlines
Jan 10
MCO9:12 amOrlando
3h 08m
ORD11:20 amChicago O'Hare Intl
Jan 12
ORD6:06 pmChicago O'Hare Intl
2h 52m
MCO9:58 pmOrlando
Spirit Airlines
Jan 9
LGA10:59 amNew York LaGuardia
2h 40m
ORD12:39 pmChicago O'Hare Intl
Jan 12
ORD5:06 pmChicago O'Hare Intl
2h 04m
LGA8:10 pmNew York LaGuardia

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 $288. Flights from United States to Illinois on a Sunday will generally be more expensive and average around $339. 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 $279. 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

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

The best time to book a flight to Illinois from United States is 33 days out, which is when prices tend to be around $247. In the past 72 hours, momondo users found flights from United States to Illinois for as low as $167.

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 42% 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

$28

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 $28. The best round-trip flight deal from United States to Illinois found on momondo in the last 72 hours is $52.
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
8,102 reviews
Search Spirit Airlines flights
FrontierPriceFrom $39Free CancellationRating
6.1
3,465 reviews
Search Frontier flights
Allegiant AirPriceFrom $49Free CancellationRating
7.3
819 reviews
Search Allegiant Air flights
JetBluePriceFrom $81Free CancellationRating
7.4
3,251 reviews
Search JetBlue flights
DeltaPriceFrom $93Free CancellationRating
8.0
8,580 reviews
Search Delta flights
United AirlinesPriceFrom $117Free CancellationRating
7.4
9,006 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $128Free CancellationRating
8.0
9,553 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $136Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $143Free CancellationRating
8.1
4,758 reviews
Search Southwest flights
Sun Country AirPriceFrom $149Free CancellationRating
7.0
392 reviews
Search Sun Country Air 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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