Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from the United States to Illinois from $61

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 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from the United States to Illinois

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

Frontier Logo
9:01 pm - 11:20 pmDFW-MDW
2h 19mnonstop
Frontier Logo
12:03 pm - 8:06 pmMDW-DFW
8h 03m1 stop
$109Frontier
Find Deal
sex, out 24 - seg, out 27
Spirit Airlines Logo
12:15 pm - 2:41 pmDFW-ORD
2h 26mnonstop
Spirit Airlines Logo
3:29 pm - 6:05 pmORD-DFW
2h 36mnonstop
$110Spirit Airlines
Find Deal
sex, out 24 - seg, out 27
American Airlines Logo
11:00 am - 12:40 pmJFK-ORD
2h 40mnonstop
American Airlines Logo
10:11 am - 1:30 pmORD-JFK
2h 19mnonstop
$137American Airlines
Find Deal
ter, out 21 - qua, out 22
United Airlines Logo
7:28 am - 9:05 amLGA-ORD
2h 37mnonstop
United Airlines Logo
6:30 pm - 9:54 pmORD-LGA
2h 24mnonstop
$137United Airlines
Find Deal
ter, out 7 - ter, out 7
American Airlines Logo
7:30 am - 9:13 amJFK-ORD
2h 43mnonstop
American Airlines Logo
10:11 am - 1:30 pmORD-JFK
2h 19mnonstop
$138American Airlines
Find Deal
ter, out 14 - ter, out 21
United Airlines Logo
4:28 pm - 6:05 pmLGA-ORD
2h 37mnonstop
United Airlines Logo
2:00 pm - 5:17 pmORD-LGA
2h 17mnonstop
$142United Airlines
Find Deal
qua, out 8 - sáb, out 11
Southwest Logo
6:05 am - 12:15 pmDCA-ORD
7h 10m1 stop
Southwest Logo
1:45 pm - 7:15 pmORD-DCA
4h 30m1 stop
$145Southwest
Find Deal
qua, dez 17 - ter, jan 13
Delta Logo
8:00 am - 9:56 amJFK-ORD
2h 56mnonstop
Delta Logo
10:37 am - 1:58 pmORD-JFK
2h 21mnonstop
$158Delta
Find Deal
qui, out 23 - ter, out 28
Delta Logo
8:00 am - 9:56 amJFK-ORD
2h 56mnonstop
Delta Logo
7:00 am - 10:25 amORD-JFK
2h 25mnonstop
$159Delta
Find Deal
qui, out 23 - seg, out 27
Southwest Logo
6:05 am - 12:15 pmLGA-ORD
7h 10m1 stop
Southwest Logo
1:45 pm - 8:00 pmORD-LGA
5h 15m1 stop
$168Southwest
Find Deal
sex, nov 14 - ter, jan 13

Spirit Airlines flights from United States to Illinois

Our best Spirit Airlines deals on United States to Illinois flight tickets
Spirit Airlines
Oct 24
DFW12:15 pmDallas/Fort Worth
2h 26m
ORD2:41 pmChicago O'Hare Intl
Oct 27
ORD3:29 pmChicago O'Hare Intl
2h 36m
DFW6:05 pmDallas/Fort Worth
$110
Find similar
Spirit Airlines
Oct 16
DFW9:05 amDallas/Fort Worth
2h 28m
ORD11:33 amChicago O'Hare Intl
Oct 18
ORD7:25 amChicago O'Hare Intl
5h 30m
1 stop
DFW12:55 pmDallas/Fort Worth
$115
Find similar
Spirit Airlines
Nov 9
DFW7:20 amDallas/Fort Worth
2h 24m
ORD9:44 amChicago O'Hare Intl
Nov 17
ORD7:30 pmChicago O'Hare Intl
2h 34m
DFW10:04 pmDallas/Fort Worth
$116
Find similar

Frontier flights from United States to Illinois

Our best Frontier deals on United States to Illinois flight tickets
Frontier
Oct 24
DFW9:01 pmDallas/Fort Worth
2h 19m
MDW11:20 pmChicago Midway
Oct 27
MDW12:03 pmChicago Midway
8h 03m
1 stop
DFW8:06 pmDallas/Fort Worth
$109
Find similar
Frontier
Nov 14
DFW7:00 amDallas/Fort Worth
10h 15m
1 stop
ORD5:15 pmChicago O'Hare Intl
Nov 15
ORD6:25 pmChicago O'Hare Intl
2h 49m
DFW9:14 pmDallas/Fort Worth
$111
Find similar
Frontier
Oct 15
DFW9:26 pmDallas/Fort Worth
2h 33m
ORD11:59 pmChicago O'Hare Intl
Oct 18
ORD5:45 pmChicago O'Hare Intl
5h 56m
1 stop
DFW11:41 pmDallas/Fort Worth
$112
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated setembro 15, 2025.
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

DallasChicago

DFW - MDW

DFWMDW

Dallas/Fort Worth

sex 10/24

9:01 pm-11:20 pm

Nonstop2h 19m

Chicago Midway

seg 10/27

12:03 pm-8:06 pm

1 stop8h 03m

$109

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

sex 10/24

12:15 pm-2:41 pm

Nonstop2h 26m

Chicago O'Hare Intl

seg 10/27

3:29 pm-6:05 pm

Nonstop2h 36m

$110

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

ter 10/21

11:00 am-12:40 pm

Nonstop2h 40m

Chicago O'Hare Intl

qua 10/22

10:11 am-1:30 pm

Nonstop2h 19m

$137

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

ter 10/7

7:28 am-9:05 am

Nonstop2h 37m

Chicago O'Hare Intl

ter 10/7

6:30 pm-9:54 pm

Nonstop2h 24m

$137

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

ter 10/14

7:30 am-9:13 am

Nonstop2h 43m

Chicago O'Hare Intl

ter 10/21

10:11 am-1:30 pm

Nonstop2h 19m

$138

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

qua 10/8

4:28 pm-6:05 pm

Nonstop2h 37m

Chicago O'Hare Intl

sáb 10/11

2:00 pm-5:17 pm

Nonstop2h 17m

$142

Washington, D.C.Chicago

DCA - ORD

DCAORD

Washington, D.C. Reagan-National

qua 12/17

6:05 am-12:15 pm

1 stop7h 10m

Chicago O'Hare Intl

ter 1/13

1:45 pm-7:15 pm

1 stop4h 30m

$145

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

qui 10/23

8:00 am-9:56 am

Nonstop2h 56m

Chicago O'Hare Intl

ter 10/28

10:37 am-1:58 pm

Nonstop2h 21m

$158

New YorkChicago

JFK - ORD

JFKORD

New York John F Kennedy Intl

qui 10/23

8:00 am-9:56 am

Nonstop2h 56m

Chicago O'Hare Intl

seg 10/27

7:00 am-10:25 am

Nonstop2h 25m

$159

New YorkChicago

LGA - ORD

LGAORD

New York LaGuardia

sex 11/14

6:05 am-12:15 pm

1 stop7h 10m

Chicago O'Hare Intl

ter 1/13

1:45 pm-8:00 pm

1 stop5h 15m

$168

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $184, 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 $189.

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 $361. Flights from United States to Illinois on a Sunday will generally be more expensive and average around $457. 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 $280. 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 Orlando 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 $252 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 $200 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

$55

Fastest flight time

2h 03m

Direct flights

Every day

Airports in Illinois

1 airport
The best one-way flight to Illinois from United States in the past 72 hours is $55. The best round-trip flight deal from United States to Illinois found on momondo in the last 72 hours is $71.
The fastest flight from United States to Illinois takes 2h 03m
Direct flights go from United States to Illinois every day.
There is 1 airport near Illinois: 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?

  • 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 $50Free CancellationRating
6.3
8,015 reviews
Search Spirit Airlines flights
FrontierPriceFrom $58Free CancellationRating
5.8
3,172 reviews
Search Frontier flights
Allegiant AirPriceFrom $77Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
JetBluePriceFrom $83Free CancellationRating
7.2
2,912 reviews
Search JetBlue flights
United AirlinesPriceFrom $97Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
DeltaPriceFrom $101Free CancellationRating
7.9
7,954 reviews
Search Delta flights
Breeze AirwaysPriceFrom $101Free CancellationRating
8.0
205 reviews
Search Breeze Airways flights
Hawaiian AirlinesPriceFrom $108Free CancellationRating
7.8
2,723 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $120Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
Sun Country AirPriceFrom $130Free CancellationRating
6.9
330 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
qua 10/15
qua 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $49
Flights to Los Angelesfrom $49
Flights to Miamifrom $49
Flights to Chicagofrom $49
Flights to Orlandofrom $59
Flights to Las Vegasfrom $49
Flights to San Franciscofrom $58
Flights to Washington, D.C.from $54
Flights to Bostonfrom $62
Flights to Atlantafrom $49
Flights to Dallasfrom $68
Flights to Seattlefrom $69