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
Tue, 3 Mar - Wed, 25 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,546 Return, found 4 days ago
AU$1,546
Return
found 4 days ago
Select American Airlines flight, departing Tue, 3 Mar from Tullamarine to O'Hare Intl., returning Wed, 25 Mar, priced at AU$1,546 found 4 days ago
United
Tue, 3 Mar - Wed, 25 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,561 Return, found 4 days ago
AU$1,561
Return
found 4 days ago
Select United flight, departing Tue, 3 Mar from Tullamarine to O'Hare Intl., returning Wed, 25 Mar, priced at AU$1,561 found 4 days ago
Air Canada
Wed, 4 Feb - Thu, 12 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,564 Return, found 4 days ago
AU$1,564
Return
found 4 days ago
Select Air Canada flight, departing Wed, 4 Feb from Tullamarine to O'Hare Intl., returning Thu, 12 Mar, priced at AU$1,564 found 4 days ago
Air Canada
Wed, 4 Feb - Thu, 12 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,570 Return, found 4 days ago
AU$1,570
Return
found 4 days ago
Select Air Canada flight, departing Wed, 4 Feb from Tullamarine to O'Hare Intl., returning Thu, 12 Mar, priced at AU$1,570 found 4 days ago
Air Canada
Wed, 4 Feb - Thu, 12 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,570 Return, found 4 days ago
AU$1,570
Return
found 4 days ago
Select Air Canada flight, departing Wed, 4 Feb from Tullamarine to O'Hare Intl., returning Thu, 12 Mar, priced at AU$1,570 found 4 days ago
Air Canada
Wed, 4 Feb - Thu, 12 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,576 Return, found 4 days ago
AU$1,576
Return
found 4 days ago
Select Air Canada flight, departing Wed, 4 Feb from Tullamarine to O'Hare Intl., returning Thu, 12 Mar, priced at AU$1,576 found 4 days ago
Qantas Airways
Tue, 3 Mar - Wed, 25 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,577 Return, found 4 days ago
AU$1,577
Return
found 4 days ago
Select Qantas Airways flight, departing Tue, 3 Mar from Tullamarine to O'Hare Intl., returning Wed, 25 Mar, priced at AU$1,577 found 4 days ago
American Airlines
Tue, 3 Mar - Wed, 25 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,578 Return, found 4 days ago
AU$1,578
Return
found 4 days ago
Select American Airlines flight, departing Tue, 3 Mar from Tullamarine to O'Hare Intl., returning Wed, 25 Mar, priced at AU$1,578 found 4 days ago
Qantas Airways
Wed, 4 Feb - Thu, 12 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,578 Return, found 4 days ago
AU$1,578
Return
found 4 days ago
Select Qantas Airways flight, departing Wed, 4 Feb from Tullamarine to O'Hare Intl., returning Thu, 12 Mar, priced at AU$1,578 found 4 days ago
Qantas Airways
Wed, 4 Feb - Thu, 12 Mar
MEL
Tullamarine
ORD
O'Hare Intl.
AU$1,584 Return, found 4 days ago
AU$1,584
Return
found 4 days ago
Select Qantas Airways flight, departing Wed, 4 Feb from Tullamarine to O'Hare Intl., returning Thu, 12 Mar, priced at AU$1,584 found 4 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$1,546. 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 Air Canada, United, Air New Zealand, American Airlines, Delta, Qantas Airways. 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.
theWit Chicago, a Hilton Hotel

theWit Chicago, a Hilton Hotel

4.5 out of 5
Price was AU$3,296, price is now AU$2,727 per person
AU$2,727
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Trump International Hotel & Tower Chicago

Trump International Hotel & Tower Chicago

5 out of 5
Price was AU$5,239, price is now AU$3,802 per person
AU$3,802
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
The Peninsula Chicago

The Peninsula Chicago

5 out of 5
Price was AU$5,424, price is now AU$4,251 per person
AU$4,251
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Level Chicago – Old Town

Level Chicago – Old Town

4 out of 5
Price was AU$3,775, price is now AU$3,001 per person
AU$3,001
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Pendry Chicago

Pendry Chicago

4.5 out of 5
Price was AU$3,821, price is now AU$3,045 per person
AU$3,045
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Hilton Chicago O'Hare Airport

Hilton Chicago O'Hare Airport

4 out of 5
Price was AU$4,078, price is now AU$3,352 per person
AU$3,352
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Hilton Chicago

Hilton Chicago

4 out of 5
Price was AU$3,810, price is now AU$3,154 per person
AU$3,154
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Hilton Grand Vacations Club Chicago Magnificent Mile

Hilton Grand Vacations Club Chicago Magnificent Mile

3.5 out of 5
Price was AU$3,424, price is now AU$2,860 per person
AU$2,860
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Palmer House a Hilton Hotel

Palmer House a Hilton Hotel

4 out of 5
Price was AU$3,660, price is now AU$3,065 per person
AU$3,065
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
The Emily Hotel

The Emily Hotel

4 out of 5
Price was AU$3,483, price is now AU$2,934 per person
AU$2,934
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Viceroy Chicago

Viceroy Chicago

4.5 out of 5
Price was AU$3,997, price is now AU$3,398 per person
AU$3,398
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
Sable at Navy Pier Chicago, Curio Collection by Hilton

Sable at Navy Pier Chicago, Curio Collection by Hilton

4 out of 5
Price was AU$3,274, price is now AU$2,785 per person
AU$2,785
per person
1 Mar - 8 Mar
found 3 hours ago
Return direct flight included
Sydney (SYD) to Chicago (ORD)
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Travelers ❤️ These 🏨

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 hotel in Chicago. Enjoy free breakfast, room service and a fitness centre. Our guests praise the breakfast and the pool in their reviews. Popular ...
8.4/10 Very Good! (5,359 reviews)
.

Reviewed on 6 Dec 2025

Opens in a new windowEmbassy Suites by Hilton Chicago Downtown River North
Hilton Chicago/Magnificent Mile Suites

Hilton Chicago/Magnificent Mile Suites

3.5 out of 5
198 E Delaware Pl Chicago IL
Stay at this business-friendly hotel in Chicago. Enjoy a fitness centre, valet parking (surcharge) and a 24-hour front desk. Our guests praise the helpful staff ...
8.8/10 Excellent! (3,453 reviews)
Pleasant staff, clean and spacious rooms. Excellent centralized location to many restaurants and things to do in Chicago that are both accessible by train and on foot. Definitely one of my new go to stays in the city.

Reviewed on 9 Dec 2025

Opens in a new windowHilton Chicago/Magnificent Mile Suites
Silversmith Hotel Chicago Downtown

Silversmith Hotel Chicago Downtown

4 out of 5
10 S Wabash Ave Chicago IL
Stay at this business-friendly hotel in Chicago. Enjoy free Wi-Fi, breakfast (surcharge) and a 24-hour fitness centre. Our guests praise the helpful staff and ...
9.2/10 Wonderful! (2,113 reviews)
The staff is so friendly and helpful. We now have stayed here twice and enjoy the hotel.

Reviewed on 11 Dec 2025

Opens in a new windowSilversmith Hotel Chicago Downtown
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.