Cheap Flights to Illinois from $30 (2026/2027)

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Flights
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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, Feb 7 - Sat, Feb 14
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 20 hours ago
$58
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Sat, Feb 7 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Feb 14, priced at $58 found 20 hours ago
Sun, Jan 18 - Thu, Jan 22
DEN
Denver Intl.
ORD
O'Hare Intl.
$61 Roundtrip, found 3 days ago
$61
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, Jan 18 from Denver Intl. to O'Hare Intl., returning Thu, Jan 22, priced at $61 found 3 days ago
Tue, Jan 13 - Sun, Jan 18
EWR
Newark Liberty Intl. Airport
MDW
Midway Intl.
$64 Roundtrip, found 1 day ago
$64
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jan 13 from Newark Liberty Intl. Airport to Midway Intl., returning Sun, Jan 18, priced at $64 found 1 day ago
Wed, Feb 11 - Tue, Feb 24
LGA
LaGuardia
ORD
O'Hare Intl.
$71 Roundtrip, just found
$71
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Feb 11 from LaGuardia to O'Hare Intl., returning Tue, Feb 24, priced at $71 just found
Sat, Jan 31 - Sun, Feb 1
EWR
Newark Liberty Intl. Airport
ORD
O'Hare Intl.
$73 Roundtrip, found 1 hour ago
$73
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Sat, Jan 31 from Newark Liberty Intl. Airport to O'Hare Intl., returning Sun, Feb 1, priced at $73 found 1 hour ago
Fri, Jan 23 - Tue, Jan 27
LGA
LaGuardia
MDW
Midway Intl.
$97 Roundtrip, found 5 days ago
$97
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Fri, Jan 23 from LaGuardia to Midway Intl., returning Tue, Jan 27, priced at $97 found 5 days ago
Sat, Feb 14 - Tue, Feb 17
LGA
LaGuardia
RFD
Greater Rockford
$139 Roundtrip, found 5 days ago
$139
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Feb 14 from LaGuardia to Greater Rockford, returning Tue, Feb 17, priced at $139 found 5 days ago
Sat, Jan 24 - Mon, Jan 26
LGA
LaGuardia
STL
Lambert-St. Louis Intl.
$146 Roundtrip, found 1 day ago
$146
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jan 24 from LaGuardia to Lambert-St. Louis Intl., returning Mon, Jan 26, priced at $146 found 1 day ago
Fri, Feb 27 - Mon, Mar 2
EWR
Newark Liberty Intl. Airport
RFD
Greater Rockford
$166 Roundtrip, found 4 days ago
$166
Roundtrip
found 4 days ago
Select American Airlines flight, departing Fri, Feb 27 from Newark Liberty Intl. Airport to Greater Rockford, returning Mon, Mar 2, priced at $166 found 4 days ago
Tue, Mar 31 - Sat, Apr 4
LGA
LaGuardia
PIA
Greater Peoria Regional
$193 Roundtrip, found 2 days ago
$193
Roundtrip
found 2 days ago
Select United flight, departing Tue, Mar 31 from LaGuardia to Greater Peoria Regional, returning Sat, Apr 4, priced at $193 found 2 days ago
OriginDestinationTravel DatesFlights From*
ATLChicagoJanuary 11 to January 21$138
ATLChicagoJanuary 11 to January 21$140
LGARockfordJanuary 9 to January 11$180
LGAChicagoJanuary 9 to January 12$200
ATLSt. LouisJanuary 10 to January 12$217
DFWSt. LouisJanuary 11 to January 22$218
LAXChicagoJanuary 11 to January 31$249
LAXSt. LouisJanuary 9 to January 12$288
LAXChicagoJanuary 11 to January 18$318
ATLRockfordJanuary 10 to January 12$346
LAXRockfordJanuary 10 to January 17$365
ATLEvansvilleJanuary 11 to January 19$442
DFWPeoriaJanuary 11 to January 20$463
ATLBloomingtonJanuary 9 to January 25$519
PVGChicagoJanuary 11 to January 26$1,397
*Prices include taxes and fees

Best Illinois Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
theWit Chicago, a Hilton Hotel
4.5-star property

theWit Chicago, a Hilton Hotel

Mar 31 - Apr 4

4 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $768, price is now $425 per person
$425
per person
found 11 hours ago
Level Chicago – Old Town
4.0-star property

Level Chicago – Old Town

Jan 17 - Jan 24

7 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $1,195, price is now $638 per person
$638
per person
found 4 hours ago
Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

Mar 31 - Apr 4

4 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $817, price is now $450 per person
$450
per person
found 11 hours ago
Don't see what you're looking for?
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Travelers ❤️ These Illinois 🏨

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! (3,656 reviews)
Everything was good

Reviewed on Jan 3, 2026

Opens in a new windowHilton Chicago/Magnificent Mile Suites
Palmer House a Hilton Hotel

Palmer House a Hilton Hotel

4 out of 5
17 E Monroe St Chicago IL
Book a stay at this luxury hotel in Chicago. Enjoy a full-service spa, breakfast (surcharge), and a 24-hour health club. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Millennium Park and Chicago Riverwalk are located nearby.
8.4/10 Very Good! (2,217 reviews)
NYE/ what a blast. Thank you

Reviewed on Jan 4, 2026

Opens in a new windowPalmer House a Hilton Hotel
Hilton Chicago

Hilton Chicago

4 out of 5
720 S Michigan Ave Chicago IL
Book a stay at this historic hotel in Chicago. Enjoy 2 restaurants, breakfast (surcharge), and a health club. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Millennium Park and Soldier Field are located nearby.
8.4/10 Very Good! (2,448 reviews)
Yes it was a great stay

Reviewed on Jan 1, 2026

Opens in a new windowHilton Chicago
Save an average of 15% on thousands of hotels when you're signed in
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Club Quarters Hotel Wacker at Michigan, Chicago

Club Quarters Hotel Wacker at Michigan, Chicago

4 out of 5
75 E Wacker Dr 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.
8.6/10 Excellent! (2,030 reviews)
The staff was GREAT, room was clean but small.

Reviewed on Jan 3, 2026

Opens in a new windowClub Quarters Hotel Wacker at Michigan, Chicago
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 $58 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 February. 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 $58 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 $58 and $1,397 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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