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Cheap flights from the United States to Illinois from $74

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from the United States to Illinois

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

Enter your travel dates to find the best prices.
Frontier Logo
10:27 am - 11:50 amATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 23mnonstop
Frontier Logo
6:00 am - 9:22 amORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 22mnonstop
$125Frontier
Wed, Jan 27 - Sat, Jan 30
Frontier Logo
4:46 pm - 6:03 pmATL  Atlanta Hartsfield-Jackson-ORD Chicago O'Hare Intl
2h 17mnonstop
Frontier Logo
10:29 pm - 1:37 amORD  Chicago O'Hare Intl-ATL Atlanta Hartsfield-Jackson
2h 08mnonstop
$126Frontier
Fri, Dec 4 - Fri, Dec 11
JetBlue Logo
9:10 pm - 11:33 pmFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 23mnonstop
JetBlue Logo
7:50 pm - 11:58 pmORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 08mnonstop
$142JetBlue
Fri, Dec 18 - Wed, Jan 6
Multiple Airlines Logo
4:10 pm - 6:55 pmFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 45mnonstop
Multiple Airlines Logo
6:59 am - 11:25 amORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 26mnonstop
$143Multiple Airlines
Fri, Jan 29 - Sun, Jan 31
Multiple Airlines Logo
11:25 am - 2:00 pmFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 35mnonstop
Multiple Airlines Logo
7:00 am - 11:10 amORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 10mnonstop
$143Multiple Airlines
Thu, Dec 10 - Tue, Dec 15
American Airlines Logo
1:05 pm - 3:37 pmFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 32mnonstop
American Airlines Logo
7:48 pm - 11:59 pmORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 11mnonstop
$149American Airlines
Fri, Dec 25 - Wed, Dec 30
American Airlines Logo
6:27 am - 8:55 amFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 28mnonstop
American Airlines Logo
8:25 am - 12:32 pmORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 07mnonstop
$149American Airlines
Wed, Jan 6 - Wed, Feb 17
JetBlue Logo
9:10 pm - 11:33 pmFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 23mnonstop
JetBlue Logo
7:00 am - 11:10 amORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 10mnonstop
$149JetBlue
Mon, Dec 21 - Wed, Dec 30
United Airlines Logo
9:00 am - 11:28 amFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 28mnonstop
United Airlines Logo
4:00 pm - 8:11 pmORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 11mnonstop
$153United Airlines
Wed, Dec 2 - Wed, Dec 2
United Airlines Logo
7:05 am - 9:42 amFLL  Fort Lauderdale-ORD Chicago O'Hare Intl
3h 37mnonstop
United Airlines Logo
6:28 pm - 10:51 pmORD  Chicago O'Hare Intl-FLL Fort Lauderdale
3h 23mnonstop
$161United Airlines
Tue, Mar 23 - Tue, Mar 23

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Frontier flights from United States to Illinois

Our best Frontier deals on United States to Illinois flight tickets
Frontier
Jan 27
ATL10:27 amAtlanta Hartsfield-Jackson
2h 23m
ORD11:50 amChicago O'Hare Intl
Jan 30
ORD6:00 amChicago O'Hare Intl
2h 22m
ATL9:22 amAtlanta Hartsfield-Jackson
$125
Frontier
Dec 11
ATL8:20 pmAtlanta Hartsfield-Jackson
2h 09m
ORD9:29 pmChicago O'Hare Intl
Dec 14
ORD8:30 amChicago O'Hare Intl
2h 21m
ATL11:51 amAtlanta Hartsfield-Jackson
$126
Frontier
Dec 10
ATL6:00 amAtlanta Hartsfield-Jackson
2h 20m
ORD7:20 amChicago O'Hare Intl
Dec 17
ORD5:58 amChicago O'Hare Intl
2h 34m
ATL9:32 amAtlanta Hartsfield-Jackson
$128

JetBlue flights from United States to Illinois

Our best JetBlue deals on United States to Illinois flight tickets
JetBlue
Dec 8
FLL11:00 amFort Lauderdale
3h 30m
ORD1:30 pmChicago O'Hare Intl
Dec 15
ORD2:59 pmChicago O'Hare Intl
3h 11m
FLL7:10 pmFort Lauderdale
$161
JetBlue
Dec 8
FLL9:10 pmFort Lauderdale
3h 23m
ORD11:33 pmChicago O'Hare Intl
Jan 8
ORD7:50 pmChicago O'Hare Intl
3h 08m
FLL11:58 pmFort Lauderdale
$167
JetBlue
Jan 20
FLL9:15 pmFort Lauderdale
3h 32m
ORD11:47 pmChicago O'Hare Intl
Jan 25
ORD7:00 amChicago O'Hare Intl
3h 12m
FLL11:12 amFort Lauderdale
$169

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaChicago

ATL Atlanta Hartsfield-Jackson - ORD Chicago O'Hare Intl

ATLORD

Atlanta Hartsfield-Jackson

Wed 1/27

10:27 am-11:50 am

Nonstop2h 23m

Chicago O'Hare Intl

Sat 1/30

6:00 am-9:22 am

Nonstop2h 22m

$125
Quickest round-trip

AtlantaChicago

ATL Atlanta Hartsfield-Jackson - ORD Chicago O'Hare Intl

ATLORD

Atlanta Hartsfield-Jackson

Fri 12/4

4:46 pm-6:03 pm

Nonstop2h 17m

Chicago O'Hare Intl

Fri 12/11

10:29 pm-1:37 am

Nonstop2h 08m

$126

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Fri 12/18

9:10 pm-11:33 pm

Nonstop3h 23m

Chicago O'Hare Intl

Wed 1/6

7:50 pm-11:58 pm

Nonstop3h 08m

$142

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Fri 1/29

4:10 pm-6:55 pm

Nonstop3h 45m

Chicago O'Hare Intl

Sun 1/31

6:59 am-11:25 am

Nonstop3h 26m

$143

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Thu 12/10

11:25 am-2:00 pm

Nonstop3h 35m

Chicago O'Hare Intl

Tue 12/15

7:00 am-11:10 am

Nonstop3h 10m

$143

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Fri 12/25

1:05 pm-3:37 pm

Nonstop3h 32m

Chicago O'Hare Intl

Wed 12/30

7:48 pm-11:59 pm

Nonstop3h 11m

$149

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Wed 1/6

6:27 am-8:55 am

Nonstop3h 28m

Chicago O'Hare Intl

Wed 2/17

8:25 am-12:32 pm

Nonstop3h 07m

$149

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Mon 12/21

9:10 pm-11:33 pm

Nonstop3h 23m

Chicago O'Hare Intl

Wed 12/30

7:00 am-11:10 am

Nonstop3h 10m

$149

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Wed 12/2

9:00 am-11:28 am

Nonstop3h 28m

Chicago O'Hare Intl

Wed 12/2

4:00 pm-8:11 pm

Nonstop3h 11m

$153

Fort LauderdaleChicago

FLL Fort Lauderdale - ORD Chicago O'Hare Intl

FLLORD

Fort Lauderdale

Tue 3/23

7:05 am-9:42 am

Nonstop3h 37m

Chicago O'Hare Intl

Tue 3/23

6:28 pm-10:51 pm

Nonstop3h 23m

$161

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $269, 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 $278.

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 Wednesday when prices can be found for as low as $412. Flights from United States to Illinois on a Monday will generally be more expensive and average around $525. 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 $394. Flights at noon are often more expensive with an average ticket price of $559.

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?

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 $265 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 $177 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

$74

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 $74. The best round-trip flight deal from United States to Illinois found on momondo in the last 72 hours is $125.
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

Frequently asked questions about flying from the 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?

  • 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
FrontierPriceFrom $44Free CancellationRating
5.5
2,505 reviews
Search Frontier flights
DeltaPriceFrom $74Free CancellationRating
7.8
8,719 reviews
Search Delta flights
JetBluePriceFrom $79Free CancellationRating
7.1
3,075 reviews
Search JetBlue flights
ContourPriceFrom $118Free CancellationRating
7.6
44 reviews
Search Contour flights
Breeze AirwaysPriceFrom $122Free CancellationRating
8.2
323 reviews
Search Breeze Airways flights
Allegiant AirPriceFrom $130Free CancellationRating
7.3
676 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $138Free CancellationRating
7.3
10,492 reviews
Search United Airlines flights
American AirlinesPriceFrom $156Free CancellationRating
7.0
12,234 reviews
Search American Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,219 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $240Free CancellationRating
7.9
13,161 reviews
Search Alaska 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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