Cheap Flights to Illinois

Popular airlines among travellers

United
Virgin Australia
Qantas Airways
Air Canada
Emirates
Delta
American Airlines
Air New Zealand
Air India
    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

Popular cities in Illinois

Chicago which includes street scenes, a high-rise building and a city
FlightsFlights

Chicago

Chicago

Cheapest Flights to Illinois

Prices were available within the past 7 days and start at AU$103 for one-way flights and AU$205 for round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed., 15 May - Wed., 22 May
CMH
John Glenn Columbus Intl.
MDW
Midway Intl.
AU$205 Return, found 5 days ago
AU$205
Return
found 5 days ago
Select Delta flight, departing Wed., 15 May from John Glenn Columbus Intl. to Midway Intl., returning Wed., 22 May, priced at AU$205 found 5 days ago
American Airlines
Sat., 25 May - Sun., 26 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$274 Return, found 2 days ago
AU$274
Return
found 2 days ago
Select American Airlines flight, departing Sat., 25 May from John Glenn Columbus Intl. to O'Hare Intl., returning Sun., 26 May, priced at AU$274 found 2 days ago
Delta
Wed., 15 May - Wed., 22 May
CMH
John Glenn Columbus Intl.
MDW
Midway Intl.
AU$298 Return, found 5 days ago
AU$298
Return
found 5 days ago
Select Delta flight, departing Wed., 15 May from John Glenn Columbus Intl. to Midway Intl., returning Wed., 22 May, priced at AU$298 found 5 days ago
United
Wed., 15 May - Sat., 18 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$306 Return, found 4 days ago
AU$306
Return
found 4 days ago
Select United flight, departing Wed., 15 May from John Glenn Columbus Intl. to O'Hare Intl., returning Sat., 18 May, priced at AU$306 found 4 days ago
American Airlines
Tue., 7 May - Tue., 14 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$309 Return, found 2 days ago
AU$309
Return
found 2 days ago
Select American Airlines flight, departing Tue., 7 May from John Glenn Columbus Intl. to O'Hare Intl., returning Tue., 14 May, priced at AU$309 found 2 days ago
Delta
Wed., 15 May - Sat., 18 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$315 Return, found 4 days ago
AU$315
Return
found 4 days ago
Select Delta flight, departing Wed., 15 May from John Glenn Columbus Intl. to O'Hare Intl., returning Sat., 18 May, priced at AU$315 found 4 days ago
Delta
Sat., 25 May - Sun., 26 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$317 Return, found 2 days ago
AU$317
Return
found 2 days ago
Select Delta flight, departing Sat., 25 May from John Glenn Columbus Intl. to O'Hare Intl., returning Sun., 26 May, priced at AU$317 found 2 days ago
American Airlines
Sat., 25 May - Sun., 26 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$324 Return, found 2 days ago
AU$324
Return
found 2 days ago
Select American Airlines flight, departing Sat., 25 May from John Glenn Columbus Intl. to O'Hare Intl., returning Sun., 26 May, priced at AU$324 found 2 days ago
American Airlines
Sat., 25 May - Sun., 26 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$336 Return, found 2 days ago
AU$336
Return
found 2 days ago
Select American Airlines flight, departing Sat., 25 May from John Glenn Columbus Intl. to O'Hare Intl., returning Sun., 26 May, priced at AU$336 found 2 days ago
American Airlines
Sat., 25 May - Sun., 26 May
CMH
John Glenn Columbus Intl.
ORD
O'Hare Intl.
AU$338 Return, found 2 days ago
AU$338
Return
found 2 days ago
Select American Airlines flight, departing Sat., 25 May from John Glenn Columbus Intl. to O'Hare Intl., returning Sun., 26 May, priced at AU$338 found 2 days ago

Illinois Flights

When was the last time you embarked on a grand adventure? Whether it was last month or years ago, there’s never been a better time to start planning your next big trip. Book tickets to Illinois today and get ready to build your travel itinerary, from exploring the area with your family to recharging in the change of scenery. During your stay, visit the must-see attractions, chow down on the local cuisine, and relish in a holiday state of mind. However you decide to spend your upcoming trip, we’re here to make your travel plans easy and affordable.

Book Your Illinois Airfare

At Expedia.com.au, it’s simple to find cheap flights to Illinois that won’t cause your wallet to flinch. Browse through our inventory of Illinois flights and find airfare matching your preferred times and dates. Looking for a red-eye flight or an afternoon departure? Don’t worry, we’ve got you covered. You can even take advantage of our convenient My Scratchpad online feature, which lets you track your search results with ease. No more excuses; book your travel arrangements with us today to make your dream trip a reality.

Illinois Flights Information

Airlines serving
Delta, United, American Airlines
Roundtrip price
from AU$205

Frequently asked questions

How do I find cheap flights to Illinois that have flexible change policies?
Search for cheap flights to Illinois, then tick the “No change fee” box under the “Flexible change policies” heading. From then on it’s smooth sailing. We understand that travel plans change and flexibility is essential, so book with confidence with Expedia.
Which airlines fly to Illinois?
Whether you’re travelling somewhere new or rendezvousing at a favourite haunt, these airlines are waiting to take you into or near Illinois:

  • United Airlines - 13 063 flights to or near Illinois each month, including 12 950 flights to O’Hare Intl. Airport (ORD) and 108 flights to Quad City Intl. Airport (MLI) per month.
  • American Airlines - 8 977 flights to or near Illinois each month, including 8 855 flights to O’Hare Intl. Airport (ORD) and 121 flights to Quad City Intl. Airport (MLI) per month.
  • Southwest Airlines - 5 997 flights to or near Illinois each month, including 5 334 flights to Midway Intl. Airport (MDW) and 663 flights to O’Hare Intl. Airport (ORD) per month.

How can I find cheap tickets to Illinois?
One of the easiest ways to find cheap tickets to Illinois is to be flexible with your travel dates. Search for your flights, then click “flexible dates” at the top of your results. It’ll reveal the cheapest prices for nearby days. The lowest price for a flight to Illinois in the last seven days was AU$205. Booking well in advance will generally help you score an even bigger bargain.
How much is a flight to Illinois?
There were plenty of bargain fares up for grabs in the last seven days, with the cost of a return airfare to Illinois ranging between AU$205 and AU$1,414. Many lucky travellers nabbed one-way tickets from Columbus (CMH) for as little as AU$103.
What are the most popular airports to fly into in Illinois?
Touch down at one of these top Illinois airports and you’ll be perfectly placed to discover all that this wonderful region has to offer:

  • O’Hare Intl. Airport (ORD) - 25 318 flights per month.
  • Midway Intl. Airport (MDW) - 5 962 flights per month.
  • Quad City Intl. Airport (MLI) - 325 flights per month.

When is the cheapest time to fly to Illinois?
Take off for Illinois early in the week and you’ll usually be rewarded more economical fares. Tuesday is typically the cheapest day to hop on a plane, followed by Monday. If you’re hoping to avoid the most expensive flights, steer clear of Saturdays.
How much is a plane ticket to Illinois?
In the last seven days, plane fares to Illinois ranged from AU$205 to AU$1,414.
What is the best time to go to Illinois?
A terrific time to check out Chicago is after June 20 when the summer season starts. In Illinois’s main city, average temperatures range from 18ºC to 24ºC at this time — ideal weather for sightseeing! May, June and August are the most popular months to head to this hot spot.
What months are the cheapest to book a flight to Illinois?
The top month to purchase affordable flights to Illinois is February. Remember that in the U.S, an expensive time to reserve a ticket is during the busy month of December.

Trending flights to Illinois

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Mon., 9 Sep. - Mon., 16 Sep.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,414 Return, found 22 hours ago
AU$1,414
Return
found 22 hours ago
Select All Nippon Airways flight, departing Mon., 9 Sep. from Kingsford Smith Intl. to O'Hare Intl., returning Mon., 16 Sep., priced at AU$1,414 found 22 hours ago
*Available to Expedia members.