Cheap Flights to Illinois from $28 (2026/2027)

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Flights
Chicago

How Much Does it Cost To Fly To Illinois?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Tue, Jun 23 - Wed, Jun 24
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$56 Roundtrip, found 2 days ago
$56
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Jun 23 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Jun 24, priced at $56 found 2 days ago
Wed, May 13 - Wed, May 13
DFW
Dallas-Fort Worth Intl.
MDW
Midway Intl.
$62 Roundtrip, found 2 hours ago
$62
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, May 13 from Dallas-Fort Worth Intl. to Midway Intl., returning Wed, May 13, priced at $62 found 2 hours ago
Tue, Jun 9 - Wed, Jun 10
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$68 Roundtrip, just found
$68
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Jun 9 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Wed, Jun 10, priced at $68 just found
Wed, May 13 - Wed, May 13
LAX
Los Angeles Intl.
ORD
O'Hare Intl.
$70 Roundtrip, found 1 hour ago
$70
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, May 13 from Los Angeles Intl. to O'Hare Intl., returning Wed, May 13, priced at $70 found 1 hour ago
Fri, May 29 - Sat, May 30
ATL
Hartsfield-Jackson Atlanta Intl.
MDW
Midway Intl.
$70 Roundtrip, found 1 day ago
$70
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 29 from Hartsfield-Jackson Atlanta Intl. to Midway Intl., returning Sat, May 30, priced at $70 found 1 day ago
Wed, May 20 - Wed, May 27
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$78 Roundtrip, just found
$78
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, May 20 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Wed, May 27, priced at $78 just found
Sun, May 3 - Sun, May 10
LAX
Los Angeles Intl.
STL
Lambert-St. Louis Intl.
$180 Roundtrip, found 2 days ago
$180
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, May 3 from Los Angeles Intl. to Lambert-St. Louis Intl., returning Sun, May 10, priced at $180 found 2 days ago
Wed, May 27 - Tue, Jun 9
ATL
Hartsfield-Jackson Atlanta Intl.
RFD
Greater Rockford
$196 Roundtrip, found 6 days ago
$196
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, May 27 from Hartsfield-Jackson Atlanta Intl. to Greater Rockford, returning Tue, Jun 9, priced at $196 found 6 days ago
Tue, May 12 - Tue, May 19
LAX
Los Angeles Intl.
MDW
Midway Intl.
$200 Roundtrip, found 3 hours ago
$200
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Tue, May 12 from Los Angeles Intl. to Midway Intl., returning Tue, May 19, priced at $200 found 3 hours ago
Sat, May 23 - Wed, May 27
LAX
Los Angeles Intl.
RFD
Greater Rockford
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, May 23 from Los Angeles Intl. to Greater Rockford, returning Wed, May 27, priced at $225 found 2 days ago
OriginDestinationTravel DatesFlights From*
ATLRockfordMay 27 to June 9$196
EWRBloomingtonMay 16 to May 20$288
ATLSavoyMay 22 to May 25$305
ATLEvansvilleJune 11 to June 15$339
LAXSavoyJune 5 to June 7$367
LAXMolineJuly 23 to July 30$369
LAXPeoriaMay 7 to May 14$369
LAXBloomingtonMay 22 to May 26$377
ATLBloomingtonJune 25 to June 28$399
ATLMolineJuly 3 to July 11$399
DFWSpringfieldJuly 28 to August 4$419
ATLSpringfieldJune 30 to July 5$473
LAXEvansvilleMay 14 to May 16$546
PVGChicagoJune 18 to August 7$1,394
PVGSt. LouisJune 8 to June 16$1,403
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
ATLChicagoApril 26 to May 1$116
ATLChicagoApril 25 to May 2$159
DFWChicagoApril 24 to May 6$174
ATLSt. LouisApril 24 to April 26$250
LAXChicagoApril 24 to April 27$315
LAXChicagoApril 24 to April 27$317
LAXSt. LouisApril 24 to April 26$332
ATLRockfordApril 24 to April 28$369
ATLSavoyApril 24 to April 26$396
EWRPeoriaApril 24 to April 26$471
LAXSavoyApril 24 to April 27$475
LAXRockfordApril 24 to April 28$506
ATLMolineApril 25 to April 30$593
PVGChicagoApril 26 to April 30$1,786
PVGSt. LouisApril 25 to May 1$2,424
*Prices include taxes and fees

Best Illinois Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
Holiday Inn Express & Suites Zion by IHG
2.5-star property

Holiday Inn Express & Suites Zion by IHG

May 3 - May 10

7 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $637, price is now $374 per person
$374
per person
found 21 hours ago
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Jun 24 - Jun 27

3 night stay

Atlanta (ATL) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $712, price is now $380 per person
$380
per person
found 1 day ago
Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

Jun 11 - Jun 15

4 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,097, price is now $662 per person
$662
per person
found 1 day ago
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Travelers ❤️ These Illinois 🏨

Congress Plaza Hotel

Congress Plaza Hotel

3.5 out of 5
520 South Michigan Avenue Chicago IL
Book a stay at this business-friendly hotel in Chicago. Enjoy 2 restaurants, 2 bars/lounges, and breakfast (surcharge). Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Grant Park and Millennium Park are located nearby.
8/10 Very Good! (10,155 reviews)
Hotel has the markings of being grand, but needs a renovation in a lot of areas. The biggest issue we had is that the a/c is not adjustable in each room and the building was very warm on the 75 degree day in April. We called the front desk and they did bring us a fan that helped some and we realized ...

Reviewed on Apr 20, 2026

Opens in a new windowCongress Plaza Hotel
Hotel Felix River North/Magnificent Mile

Hotel Felix River North/Magnificent Mile

4 out of 5
111 W Huron St Chicago IL
Book a stay at this boutique hotel in Chicago. Enjoy breakfast (surcharge), a 24-hour health club, and valet parking (surcharge). Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Michigan Avenue and Chicago Riverwalk are located nearby.
8.2/10 Very Good! (2,632 reviews)
Very nice location with lots of things in walkable distance. The only negative was the small room size. There wasn't a closet but the room was functional. It also had a small refrigerator and microwave. I would stay here again.

Reviewed on Apr 20, 2026

Opens in a new windowHotel Felix River North/Magnificent Mile
Club Quarters Hotel, Central Loop, Chicago

Club Quarters Hotel, Central Loop, Chicago

4 out of 5
111 West Adams Street Chicago IL
Book a stay at this business-friendly hotel in Chicago. Enjoy free WiFi, breakfast (surcharge), and room service. Our guests praise the restaurant and the helpful staff in our reviews. Popular attractions Millennium Park and Chicago Riverwalk are located nearby.
8.8/10 Excellent! (3,440 reviews)
Great stay

Reviewed on Apr 20, 2026

Opens in a new windowClub Quarters Hotel, Central Loop, Chicago
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Hilton Chicago/Magnificent Mile Suites

Hilton Chicago/Magnificent Mile Suites

3.5 out of 5
198 E Delaware Pl Chicago IL
Book a stay at this business-friendly hotel in Chicago. Enjoy a fitness center, valet parking (surcharge), and a 24-hour front desk. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Michigan Avenue and Chicago Riverwalk are located nearby.
9/10 Wonderful! (4,176 reviews)
The room was nice and the staff was friendly and helpful. The room heat doesn’t work good. But overall the location and the hotel was nice.

Reviewed on Apr 20, 2026

Opens in a new windowHilton Chicago/Magnificent Mile Suites
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is the cheapest flight to Illinois?
A roundtrip flight to Illinois cost as little as $56 within the last seven days. When you're ready to make a booking, we'll help you find a top deal. This price was available on Travelocity for flights to Illinois departing within the next year. Prices and availability are subject to change. Additional terms apply.
Which airlines fly to Illinois?
You'll have a choice of 19 airlines when you want to organize your flight to Illinois. Let Southwest Airlines take you there. This top carrier offers 5,737 services a month to Chicago, Illinois's premier city.
What is the cheapest month to fly to Illinois?
Splash out more money on epic experiences and less on airfares by visiting Illinois in June. This is the most affordable time to set off to this destination based on Travelocity's direct return flight demand between January and December last year. Take a peek at our list of flights and get away from it all without draining your bank account.
How can I check my flight status to Illinois?
Visit the Travelocity customer portal, Trips. You'll find almost everything related to your flight to Illinois here, including valuable information about any gate changes, flight delays and more. Keep an eye out for Trips at the top right of the Travelocity homepage. Simply sign up, log in and discover what you need. Or you can access your itinerary on the go and get real-time travel updates with the Travelocity app. You'll find all your itineraries in one convenient place, so you can quickly share details with any members of your family flying with you.
How do I find the best deals on flights to Illinois?
Being flexible with your travel dates is one of the best ways to score a fantastic deal. Travelocity makes it a snap to find your perfect fare through the "Flexible dates" feature. First, search for your flight to Illinois, then compare prices for surrounding days by clicking the Flexible dates box above. Booking ahead of time and traveling outside of peak periods will also help you save. In the last seven days, the cheapest price for a return flight to Illinois was $56 on our site. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to Illinois with Travelocity?
Look for cheap flights to Illinois with Travelocity and start arranging your next adventure. With 24/7 customer assistance during every step of your trip and a Price Match Guarantee, we take the difficulty out of reserving cheap family flights, places to stay and more. Bag a top deal today and prepare for an amazing adventure.
What are the most popular flight routes to Illinois?
To help you in your search for flights to Illinois, browse our list of some of the preferred routes:

  • Denver, CO (DEN-Denver Intl.) to O'Hare Intl. Airport (ORD) - 4,203 flights a month.
  • Minneapolis, MN (MSP-Minneapolis - St. Paul Intl.) to O'Hare Intl. Airport (ORD) - 4,155 flights a month.
  • New York, NY (LGA-LaGuardia) to O'Hare Intl. Airport (ORD) - 4,138 flights a month.

How much is a flight to Illinois on average?
Airfares for roundtrip flights to Illinois cost between $56 and $2,424 in the last seven days. The moment you see a fabulous deal, snap it up and get ready to set off on your next wonderful adventure with Travelocity. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
How long is the average flight to Illinois?
The length of your direct flight to Illinois mostly depends on your point of departure. To give you an idea of what to expect, here are the average travel times for a handful of popular routes to Illinois:

  • Denver, CO (DEN-Denver Intl.) to O'Hare Intl. Airport (ORD) - 2 hours and 29 minutes
  • Minneapolis, MN (MSP-Minneapolis - St. Paul Intl.) to O'Hare Intl. Airport (ORD) - 2 hours and 20 minutes
  • New York, NY (LGA-LaGuardia) to O'Hare Intl. Airport (ORD) - 2 hours and 41 minutes

What can I expect on a flight to Illinois?
Factors such as which carrier you choose and where you're departing from will mostly determine your travel experience. Chances are you'll find all kinds of flights to Illinois, from cheap flights for family vacations to first class journeys. Warm meals, drinks and entertainment are usually what most airlines provide on long-haul trips.

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