Cheap Flights to Illinois from $24 (2026/2027)

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Chicago

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.

Thu, Oct 22 - Mon, Oct 26
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$46 Roundtrip, found 6 days ago
$46
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Oct 22 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Oct 26, priced at $46 found 6 days ago
Tue, Nov 10 - Tue, Nov 10
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$73 Roundtrip, found 1 day ago
$73
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Nov 10 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Tue, Nov 10, priced at $73 found 1 day ago
Tue, Sep 1 - Sat, Sep 5
ATL
Hartsfield-Jackson Atlanta Intl.
MDW
Midway Intl.
$81 Roundtrip, found 2 days ago
$81
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Hartsfield-Jackson Atlanta Intl. to Midway Intl., returning Sat, Sep 5, priced at $81 found 2 days ago
Sun, Sep 13 - Sun, Sep 20
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 5 days ago
$108
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Sep 13 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Sun, Sep 20, priced at $108 found 5 days ago
Sat, Oct 31 - Sat, Nov 14
DFW
Dallas-Fort Worth Intl.
MDW
Midway Intl.
$108 Roundtrip, found 7 hours ago
$108
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Sat, Oct 31 from Dallas-Fort Worth Intl. to Midway Intl., returning Sat, Nov 14, priced at $108 found 7 hours ago
Sat, Oct 17 - Sat, Nov 7
DFW
Dallas-Fort Worth Intl.
ORD
O'Hare Intl.
$118 Roundtrip, found 1 day ago
$118
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Oct 17 from Dallas-Fort Worth Intl. to O'Hare Intl., returning Sat, Nov 7, priced at $118 found 1 day ago
Wed, Sep 9 - Wed, Sep 16
ATL
Hartsfield-Jackson Atlanta Intl.
RFD
Greater Rockford
$163 Roundtrip, found 3 days ago
$163
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Sep 9 from Hartsfield-Jackson Atlanta Intl. to Greater Rockford, returning Wed, Sep 16, priced at $163 found 3 days ago
Thu, Oct 29 - Tue, Nov 3
DAL
Love Field
STL
Lambert-St. Louis Intl.
$177 Roundtrip, found 2 days ago
$177
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Thu, Oct 29 from Love Field to Lambert-St. Louis Intl., returning Tue, Nov 3, priced at $177 found 2 days ago
OriginDestinationTravel DatesFlights From*
ATLEvansvilleOctober 8 to October 12$263
ATLPeoriaSeptember 10 to September 13$323
LAXPeoriaNovember 4 to December 4$359
LAXBloomingtonNovember 12 to November 15$359
LAXMolineOctober 1 to October 5$364
EWRPeoriaSeptember 2 to September 8$384
LAXSpringfieldSeptember 12 to October 3$407
LAXEvansvilleSeptember 29 to October 3$435
LAXSavoySeptember 18 to September 21$546
LGAMolineSeptember 22 to September 24$568
PVGMolineOctober 2 to October 6$1,103
PEKSt. LouisOctober 8 to October 26$1,116
PVGChicagoSeptember 15 to September 16$1,186
PVGEvansvilleSeptember 1 to December 1$1,666
PVGSavoyAugust 31 to September 7$1,799
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
ATLChicagoAugust 23 to September 8$258
ATLSt. LouisAugust 23 to August 28$268
LAXChicagoAugust 23 to August 27$322
LAXChicagoAugust 22 to August 30$342
ATLRockfordAugust 22 to August 29$363
LAXRockfordAugust 22 to August 24$376
LAXSt. LouisAugust 21 to August 22$390
LGAMolineAugust 21 to August 26$400
ATLMolineAugust 23 to August 30$475
ATLBloomingtonAugust 21 to August 23$505
DFWPeoriaAugust 21 to August 23$526
EWREvansvilleAugust 23 to August 24$795
PVGChicagoAugust 23 to August 28$1,614
PEKChicagoAugust 23 to September 12$1,836
PVGSt. LouisAugust 23 to August 27$2,040
*Prices include taxes and fees

Best Illinois Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Sep 24 - Sep 28

4 night stay

Atlanta (ATL) to St. Louis (STL)

Delta • Coach

St. Louis (STL) to Atlanta (ATL)

Frontier Airlines • Coach
Save 100% on your flight
Price was $617, price is now $330 per person
$330
per person
found 1 day ago
Travelodge by Wyndham Downtown Chicago
2.0-star property

Travelodge by Wyndham Downtown Chicago

Oct 14 - Oct 18

4 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Price was $751, price is now $372 per person
$372
per person
found 1 day ago
Level Chicago Fulton Market
4.0-star property

Level Chicago Fulton Market

Oct 27 - Nov 3

7 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Price was $1,895, price is now $1,013 per person
$1,013
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.
Opens in a new windowCongress Plaza Hotel
The Chicago Hotel Collection Ambassador Gold Coast

The Chicago Hotel Collection Ambassador Gold Coast

4 out of 5
1301 N State Pkwy Chicago IL
Book a stay at this business-friendly hotel in Chicago. Enjoy free WiFi, a 24-hour fitness center, 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.
Opens in a new windowThe Chicago Hotel Collection Ambassador Gold Coast
Kasa Magnificent Mile Chicago

Kasa Magnificent Mile Chicago

4 out of 5
One Superior Place Chicago IL
Stay at this aparthotel in Chicago. Enjoy free WiFi, a fitness center, and parking (surcharge). Our guests praise the helpful staff in our reviews. Popular attractions Michigan Avenue and Chicago Riverwalk are located nearby.
Opens in a new windowKasa Magnificent Mile Chicago
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River Hotel

River Hotel

4 out of 5
75 East Wacker Drive Chicago IL
Book a stay at this business-friendly hotel in Chicago. Enjoy free WiFi, room service, and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Chicago Riverwalk and Michigan Avenue are located nearby.
8.8/10 Excellent! (5,383 reviews)
"Nice room. Ability to get filtered water. Friendly staff. Beautiful old building."

Reviewed on Aug 15, 2026

Opens in a new windowRiver Hotel
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 $46 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 15 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 October. 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 $46 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 $46 and $2,040 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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