Search Cheapest Flights to Illinois

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Cheap flights to Illinois

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

American Airlines
Wed., 19 Mar. - Sat., 12 Apr.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,201 Return, found 4 days ago
AU$1,201
Return
found 4 days ago
Select American Airlines flight, departing Wed., 19 Mar. from Kingsford Smith Intl. to O'Hare Intl., returning Sat., 12 Apr., priced at AU$1,201 found 4 days ago
Qantas Airways
Tue., 26 Aug. - Mon., 15 Sep.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,202 Return, found 3 days ago
AU$1,202
Return
found 3 days ago
Select Qantas Airways flight, departing Tue., 26 Aug. from Kingsford Smith Intl. to O'Hare Intl., returning Mon., 15 Sep., priced at AU$1,202 found 3 days ago
Qantas Airways
Fri., 25 Apr. - Fri., 16 May
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,202 Return, found 4 days ago
AU$1,202
Return
found 4 days ago
Select Qantas Airways flight, departing Fri., 25 Apr. from Kingsford Smith Intl. to O'Hare Intl., returning Fri., 16 May, priced at AU$1,202 found 4 days ago
Qantas Airways
Fri., 18 Jul. - Thu., 7 Aug.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,203 Return, found 5 days ago
AU$1,203
Return
found 5 days ago
Select Qantas Airways flight, departing Fri., 18 Jul. from Kingsford Smith Intl. to O'Hare Intl., returning Thu., 7 Aug., priced at AU$1,203 found 5 days ago
Qantas Airways
Tue., 11 Mar. - Thu., 20 Mar.
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,452 Return, found 7 hours ago
AU$1,452
Return
found 7 hours ago
Select Qantas Airways flight, departing Tue., 11 Mar. from Tullamarine to O'Hare Intl., returning Thu., 20 Mar., priced at AU$1,452 found 7 hours ago
American Airlines
Tue., 11 Mar. - Sat., 22 Mar.
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,470 Return, found 7 hours ago
AU$1,470
Return
found 7 hours ago
Select American Airlines flight, departing Tue., 11 Mar. from Tullamarine to O'Hare Intl., returning Sat., 22 Mar., priced at AU$1,470 found 7 hours ago
Air Canada
Tue., 3 Jun. - Mon., 30 Jun.
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,773 Return, found 20 hours ago
AU$1,773
Return
found 20 hours ago
Select Air Canada flight, departing Tue., 3 Jun. from Tullamarine to O'Hare Intl., returning Mon., 30 Jun., priced at AU$1,773 found 20 hours ago
United
Wed., 19 Mar. - Sat., 12 Apr.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,829 Return, found 4 days ago
AU$1,829
Return
found 4 days ago
Select United flight, departing Wed., 19 Mar. from Kingsford Smith Intl. to O'Hare Intl., returning Sat., 12 Apr., priced at AU$1,829 found 4 days ago
Air Canada
Tue., 18 Mar. - Mon., 7 Apr.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,830 Return, found 4 days ago
AU$1,830
Return
found 4 days ago
Select Air Canada flight, departing Tue., 18 Mar. from Kingsford Smith Intl. to O'Hare Intl., returning Mon., 7 Apr., priced at AU$1,830 found 4 days ago
Delta
Tue., 25 Mar. - Mon., 14 Apr.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$1,843 Return, found 4 days ago
AU$1,843
Return
found 4 days ago
Select Delta flight, departing Tue., 25 Mar. from Kingsford Smith Intl. to O'Hare Intl., returning Mon., 14 Apr., priced at AU$1,843 found 4 days ago
Virgin Australia
Tue., 25 Mar. - Mon., 14 Apr.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$2,159 Return, found 4 days ago
AU$2,159
Return
found 4 days ago
Select Virgin Australia flight, departing Tue., 25 Mar. from Kingsford Smith Intl. to O'Hare Intl., returning Mon., 14 Apr., priced at AU$2,159 found 4 days ago
United
Fri., 2 May - Fri., 9 May
SYD
Kingsford Smith Intl.
STL
Lambert-St. Louis Intl.
AU$2,243 Return, found 1 day ago
AU$2,243
Return
found 1 day ago
Select United flight, departing Fri., 2 May from Kingsford Smith Intl. to Lambert-St. Louis Intl., returning Fri., 9 May, priced at AU$2,243 found 1 day ago
Air New Zealand
Thu., 29 May - Wed., 18 Jun.
SYD
Kingsford Smith Intl.
ORD
O'Hare Intl.
AU$2,266 Return, found 6 days ago
AU$2,266
Return
found 6 days ago
Select Air New Zealand flight, departing Thu., 29 May from Kingsford Smith Intl. to O'Hare Intl., returning Wed., 18 Jun., priced at AU$2,266 found 6 days ago

Cheapest Flights To Illinois

Your boss is making it hard to whistle while you work. You could call in sick, but what fun is that? We say you should fly to Illinois for a much-needed holiday. At lastminute.com.au, our deals are almost as hard to resist as that second in-flight beverage.

Are there cheap flights to Illinois available?

Cheer up, frugal friend! We've found flights to Illinois starting from AU$1,201. When you grab economy (or premium economy flights if you're feeling fancy) to Illinois at a discount on lastminute.com.au, you still have plenty left over for a midnight snack after you get home from the nightclub (or the museum, as far as your mum is concerned).

What airlines fly to Illinois?

Some of the most popular airlines that fly to airports in Illinois are American Airlines, Qantas Airways, United, Delta, Japan Airlines, Air Canada, Virgin Australia, Korean Air, Air New Zealand. What are you waiting for? You grab the ticket, we’ll start packing your carry-on.

Check out flights to these amazing Illinois cities

Popular cities in Illinois

Chicago which includes a high-rise building and a city as well as a family
FlightsFlights
FlightsFlights

Chicago

Chicago

Deals On This Weekend's Flights

Save 🕑&💰 | Book Your Illinois ✈️ & 🏨 Together

Price found within the past 48 hours. Click for updated prices.
Chicago Athletic Association, a Hyatt Hotel

Chicago Athletic Association, a Hyatt Hotel

4.5 out of 5
per person
21 Apr - 23 Apr
found 1 day ago
Return flight included
Nashville (BNA) to Chicago (ORD)
Level Chicago – Old Town

Level Chicago – Old Town

4 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Swissotel - Chicago

Swissotel - Chicago

4.5 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
The Emily Hotel

The Emily Hotel

4 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Pendry Chicago

Pendry Chicago

4.5 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Hilton Chicago

Hilton Chicago

4 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Congress Plaza Hotel

Congress Plaza Hotel

3.5 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Kinzie Hotel

Kinzie Hotel

4 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
InterContinental Chicago Magnificent Mile by IHG

InterContinental Chicago Magnificent Mile by IHG

4.5 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Palmer House a Hilton Hotel

Palmer House a Hilton Hotel

4 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
LondonHouse Chicago, Curio Collection by Hilton

LondonHouse Chicago, Curio Collection by Hilton

4.5 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Fairmont Chicago at Millennium Park

Fairmont Chicago at Millennium Park

4.5 out of 5
per person
10 Apr - 17 Apr
found 1 day ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
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Congress Plaza Hotel

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3.5 out of 5
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7.8/10 Good! (8,583 reviews)
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Reviewed on 8 Mar. 2025

Congress Plaza 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.