Search Cheap Flights to
Illinois from $100

Search 400 airlines and 321,000 hotels worldwide.

Stop Planning & Start Exploring

FREE 24 hour cancellation on most flights

Cheap round-trip flights to Illinois

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

Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Frontier Airlines
Spirit Airlines
Frontier Airlines
Delta
American Airlines
United
Bargain Flight
American Airlines
Delta
JetBlue Airways
Delta

Flights to Illinois starting at $100

Have you been telling yourself, “2025 is the year I travel more and sit less”? Well, here we are and there you are. So, where are you going? Looks like a flight to Illinois is calling. Good thing we can help you bag that flight out of town for cheap, so you can get your resolutions resolved.

Travel like you mean it

When you land it’s not straight to the tourist traps for you. You have things to do and see in Illinois that aren’t on a map or in the “Best of. . .” guides. You know this region is filled with hidden haunts, locals-only know favorites, and the off-beat-so-weird-it’s-amazing places. And you plan to find every last one of them. Good thing you’ll save a grip of cash on your flight so you can daytrip far and wide.

You won’t have to wing it

So how do you score that killer deal on a flight to Illinois? Easy, go through us. These aren’t pie in the sky deals, but ones you can actually score. Filter flights to Illinois by:

  • Hotwire Hot Rate: Do you have a flexible schedule? Hit up the Hotwire Hot Rate and land a super cheap flight to Illinois. We’ll reveal the airline and exact time after you book.
  • Price: How low can we go? Find out. We have prices from $100 to $601.
  • Duration: Want to get to Illinois as fast as you can? Or maybe you don’t mind taking your time to save a few bucks here and there.
  • Departure or Arrival: Like to arrive in the a.m. to get your day going? Or are you a night owl that knows the best fun happens late night? The choice is yours.

So are you going to live up to those travel plans or kick the can to next year? Book your flight to Illinois today and get going.

Last Minute Hotel Deals in 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 ...
7.8/10 Good! (8,890 reviews)
"Awesome!"

Reviewed on May 20, 2025

Congress Plaza Hotel
Warwick Allerton - Chicago

Warwick Allerton - Chicago

4 out of 5
701 North Michigan Avenue, Chicago, IL
Stay at this 4-star family-friendly hotel in Chicago. Enjoy breakfast (surcharge), a 24-hour fitness center, and valet parking (surcharge). Our guests praise ...
8/10 Very Good! (2,853 reviews)
"Stay was nice"

Reviewed on May 20, 2025

Warwick Allerton - Chicago
The Chicago Hotel Collection Ambassador Gold Coast

The Chicago Hotel Collection Ambassador Gold Coast

4 out of 5
1301 N State Pkwy, Chicago, IL
Stay at this 4-star business-friendly hotel in Chicago. Enjoy free WiFi, a 24-hour fitness center, and valet parking (surcharge). Our guests praise the helpful ...
8.4/10 Very Good! (1,005 reviews)
"We reserved a double room for one night to go to a concert at Soldier Field. We booked a month out but most options (aside from this) were taken. Room was very clean, comfortable and quiet. The view from our windows were also nice, but private. Only caveat to staying here is the required resort fee ..."

Reviewed on May 21, 2025

The Chicago Hotel Collection Ambassador Gold Coast
Save an average of 15% on thousands of hotels when you're signed in
River Hotel

River Hotel

4 out of 5
75 East Wacker Drive, Chicago, IL
Stay at this 4-star business-friendly hotel in Chicago. Enjoy free WiFi, room service, and a fitness center. Our guests praise the helpful staff and the clean ...
8.6/10 Excellent! (4,170 reviews)
Elevator an issue
"Hotel was great but our room was behind the elevator so we heard it go up and down all night. They should have let us know and the hotel should discount this room."

Reviewed on May 22, 2025

River 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.