Cheap Flights to Illinois from $35 (2025/2026)

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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.

Sat, Jul 12 - Sat, Jul 12
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$43 Roundtrip, found 5 days ago
$43
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Jul 12, priced at $43 found 5 days ago
Tue, Jul 29 - Sat, Aug 2
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$72 Roundtrip, found 1 hour ago
$72
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Tue, Jul 29 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Sat, Aug 2, priced at $72 found 1 hour ago
Sat, Jul 19 - Tue, Jul 29
ATL
Hartsfield-Jackson Atlanta Intl.
MDW
Midway Intl.
$82 Roundtrip, found 1 day ago
$82
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jul 19 from Hartsfield-Jackson Atlanta Intl. to Midway Intl., returning Tue, Jul 29, priced at $82 found 1 day ago
Thu, Aug 28 - Thu, Aug 28
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$83 Roundtrip, found 1 day ago
$83
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Aug 28 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Thu, Aug 28, priced at $83 found 1 day ago
Sat, Sep 6 - Sat, Sep 6
DFW
Dallas-Fort Worth Intl.
MDW
Midway Intl.
$83 Roundtrip, just found
$83
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Sep 6 from Dallas-Fort Worth Intl. to Midway Intl., returning Sat, Sep 6, priced at $83 just found
Thu, Sep 25 - Tue, Sep 30
DFW
Dallas-Fort Worth Intl.
ORD
O'Hare Intl.
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 25 from Dallas-Fort Worth Intl. to O'Hare Intl., returning Tue, Sep 30, priced at $88 just found
Thu, Aug 21 - Mon, Aug 25
EWR
Newark Liberty Intl. Airport
STL
Lambert-St. Louis Intl.
$124 Roundtrip, found 3 hours ago
$124
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Thu, Aug 21 from Newark Liberty Intl. Airport to Lambert-St. Louis Intl., returning Mon, Aug 25, priced at $124 found 3 hours ago
Fri, Sep 5 - Sun, Sep 7
LGA
LaGuardia
ORD
O'Hare Intl.
$126 Roundtrip, just found
$126
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Sep 5 from LaGuardia to O'Hare Intl., returning Sun, Sep 7, priced at $126 just found
Thu, Sep 18 - Thu, Sep 25
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$131 Roundtrip, just found
$131
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Sep 18 from LaGuardia to Lambert-St. Louis Intl., returning Thu, Sep 25, priced at $131 just found
Sat, Sep 13 - Sat, Sep 13
DAL
Love Field
STL
Lambert-St. Louis Intl.
$139 Roundtrip, found 21 hours ago
$139
Roundtrip
found 21 hours ago
Select Southwest Airlines flight, departing Sat, Sep 13 from Love Field to Lambert-St. Louis Intl., returning Sat, Sep 13, priced at $139 found 21 hours ago
Mon, Sep 22 - Thu, Sep 25
DAL
Love Field
MDW
Midway Intl.
$157 Roundtrip, found 4 hours ago
$157
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Mon, Sep 22 from Love Field to Midway Intl., returning Thu, Sep 25, priced at $157 found 4 hours ago
OriginDestinationTravel DatesFlights From*
ATLEvansvilleJuly 26 to July 29$244
EWRBloomingtonAugust 12 to September 3$302
ATLSavoyAugust 2 to August 3$316
LAXMolineJuly 17 to July 24$322
ATLMolineSeptember 15 to September 20$329
LAXBloomingtonSeptember 2 to September 9$379
ATLBloomingtonAugust 3 to August 21$399
DFWSpringfieldOctober 3 to October 5$411
LAXEvansvilleSeptember 12 to September 14$459
EWRSavoyJuly 31 to August 2$480
DALEvansvilleJuly 19 to July 26$486
ATLSpringfieldJuly 16 to July 19$486
LAXSavoyOctober 13 to October 23$588
HKGSt. LouisSeptember 4 to September 8$981
PEKSt. LouisSeptember 11 to February 11$1,157
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
DFWSt. LouisJuly 6 to July 10$123
LGAChicagoJuly 6 to July 9$265
LGAChicagoJuly 4 to July 8$281
LAXChicagoJuly 5 to July 10$301
ATLSavoyJuly 4 to July 22$414
DFWSavoyJuly 5 to July 8$417
LAXPeoriaJuly 5 to July 7$478
ATLEvansvilleJuly 6 to July 16$489
DALEvansvilleJuly 4 to July 14$527
EWRMolineJuly 4 to July 6$556
ATLMolineJuly 4 to July 9$606
PVGChicagoJuly 5 to July 9$1,505
PVGSt. LouisJuly 6 to July 19$1,571
CANChicagoJuly 5 to August 8$1,659
PEKChicagoJuly 6 to July 9$1,702
*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

Jul 24 - Jul 27

3 night stay

Atlanta (ATL) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
Arlo Chicago
4.0-star property

Arlo Chicago

Sep 21 - Sep 28

7 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
per person
found 1 day ago
LondonHouse Chicago, Curio Collection by Hilton
4.5-star property

LondonHouse Chicago, Curio Collection by Hilton

Sep 21 - Sep 28

7 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
per person
found 1 day ago
Don't see what you're looking for?
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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 free WiFi, 2 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Grant Park and Art Institute of Chicago are located nearby.
7.8/10 Good! (8,916 reviews)
Great value
"The room had a strange smell; not bad just odd. Great view but lots of light in the AM. Great walking distance to lots of cool stuff!"

Reviewed on Jun 30, 2025

Congress Plaza Hotel
InterContinental Chicago Magnificent Mile by IHG

InterContinental Chicago Magnificent Mile by IHG

4.5 out of 5
505 N Michigan Ave, Chicago, IL
Stay at this 4.5-star luxury hotel in Chicago. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the pool and the helpful staff in our reviews. Popular attractions Michigan Avenue and Chicago Riverwalk are located nearby.
9/10 Wonderful! (1,956 reviews)
"Top tier hospitality!"

Reviewed on Jul 1, 2025

InterContinental Chicago Magnificent Mile by IHG
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.
8.8/10 Excellent! (2,358 reviews)
"Had a great stay at the Hilton magnificent t mile"

Reviewed on Jul 1, 2025

Hilton Chicago/Magnificent Mile Suites
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Embassy Suites by Hilton Chicago Downtown River North

Embassy Suites by Hilton Chicago Downtown River North

4 out of 5
600 N State St, Chicago, IL
Stay at this 4-star hotel in Chicago. Enjoy free breakfast, room service, and a fitness center. Our guests praise the breakfast and the pool in our reviews. Popular attractions Michigan Avenue and Chicago Riverwalk are located nearby.
8.4/10 Very Good! (4,320 reviews)
"The room was clean and had all the things we needed for our stay. The staff was friendly and the breakfast was good. They had a huge spread for breakfast. Could get crazy when everyone was using the elevators because they do not have stairs."

Reviewed on Jul 1, 2025

Embassy Suites by Hilton Chicago Downtown River North
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 $43 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 20 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 July. 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 $43 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 $43 and $1,702 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.

Destinations in Illinois

Top Flight Routes

Top Airlines

Top Airports

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.