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$626+ Cheap flights from Illinois to Cairns (CNS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Illinois to Cairns

Cheapest flights from Illinois to Cairns
Explore the most affordable flight options available from Illinois to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This KAYAK deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:21 am
STL
-
CNS
2 stops37h 44m
Qantas Airways
Sun 8/95:40 pm
CNS
-
STL
3 stops62h 11m
Qantas Airways
Deal found 2/4$1,483
This BusinessClass deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:44 pm
ORD
-
CNS
2 stops27h 16m
Multiple Airlines
Wed 3/256:40 am
CNS
-
ORD
2 stops32h 07m
Multiple Airlines
Deal found 2/1$1,513
This Qantas Airways deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2111:46 am
STL
-
CNS
2 stops36h 29m
Qantas Airways
Tue 2/2412:35 pm
CNS
-
STL
2 stops46h 54m
Qantas Airways
Deal found 2/3$1,676
This Qantas Airways deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/132:58 pm
ORD
-
CNS
2 stops40h 07m
Qantas Airways
Tue 2/175:35 pm
CNS
-
ORD
2 stops36h 22m
Qantas Airways
Deal found 1/31$1,687
This Air Canada deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/42:20 pm
STL
-
CNS
3 stops32h 20m
Multiple Airlines
Sun 8/97:15 pm
CNS
-
STL
3 stops57h 47m
Multiple Airlines
Deal found 2/4$1,711
This Trip.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/206:38 am
STL
-
CNS
2 stops43h 52m
Multiple Airlines
Fri 3/276:40 am
CNS
-
STL
2 stops32h 18m
Multiple Airlines
Deal found 2/3$1,761
This Cathay Pacific deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/132:35 pm
ORD
-
CNS
2 stops34h 15m
Cathay Pacific
Tue 2/1711:25 am
CNS
-
ORD
1 stop41h 30m
Cathay Pacific
Deal found 2/3$3,442
This Air Canada deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/132:00 pm
ORD
-
CNS
3 stops32h 55m
Air Canada
Tue 2/176:00 am
CNS
-
ORD
2 stops24h 41m
Air Canada
Deal found 1/31$5,747

Find flight deals from Illinois to Cairns

Keep the following information in mind while searching for Illinois to Cairns flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,483
(KAYAK)

One-way from

$626
(Kiwi.com)
Provider with most accurate pricing for Chicago (CHI)-Cairns flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Cairns flights.
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From Illinois to Cairns
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One-way flight from Illinois to Cairns
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Cairns that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Illinois to Cairns that are best for you.

Fly from

Illinois

Fly to

Cairns

Route

Depart

Return

Price

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 5/4

6:21 am-11:05 am

2 stops37h 44m

Cairns

Sun 8/9

5:40 pm-4:51 pm

3 stops62h 11m

$1,483

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 3/18

4:44 pm-11:00 am

2 stops27h 16m

Cairns

Wed 3/25

6:40 am-11:47 pm

2 stops32h 07m

$1,513

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 2/21

11:46 am-4:15 pm

2 stops36h 29m

Cairns

Tue 2/24

12:35 pm-7:29 pm

2 stops46h 54m

$1,676

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 5/4

2:20 pm-1:40 pm

3 stops32h 20m

Cairns

Sun 8/9

7:15 pm-2:02 pm

3 stops57h 47m

$1,711

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 6/7

3:40 pm-3:55 pm

2 stops33h 15m

Cairns

Tue 6/23

6:00 am-5:47 am

2 stops38h 47m

$5,972

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 6/7

8:46 am-3:55 pm

2 stops40h 09m

Cairns

Sun 6/21

7:15 pm-5:47 am

2 stops49h 32m

$5,976

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 6/8

1:00 pm-3:55 pm

3 stops35h 55m

Cairns

Tue 6/23

6:00 am-5:47 am

2 stops38h 47m

$5,980

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 6/6

4:37 pm-3:55 pm

3 stops56h 18m

Cairns

Mon 6/22

6:00 am-2:41 pm

2 stops23h 41m

$5,980

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 6/6

4:37 pm-3:55 pm

3 stops56h 18m

Cairns

Sun 6/21

7:15 pm-5:47 am

2 stops49h 32m

$5,985

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Thu 6/4

5:10 pm-11:05 am

2 stops26h 55m

Cairns

Sun 6/21

2:55 pm-5:00 am

2 stops29h 05m

$6,357

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 15 results
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Best time to book a flight from Illinois to Cairns

Have a flexible travel schedule? Discover the best time to fly to Cairns from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Cairns
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Cairns. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cairns from Illinois?

    Cairns (CNS) is the airport you will fly into if you book a flight from Illinois to Cairns. It is only a 2.8 mi journey from Cairns (CNS) to Cairns’s city center.

  • How long is the flight from Illinois to Cairns?

    Airlines like Qantas Airways and Air Canada fly from Illinois to Cairns in about 33h 15m. The time it takes to get you to your destination can typically vary by up to 4h 29m. The distance between Illinois and Cairns is about 8839 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Illinois to Cairns that include hotel bookings?

    Yes. In addition to deals on Illinois to Cairns flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Cairns?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Cairns.

  • Can I find deals for business class flights from Illinois to Cairns?

    Yes. Cheapflights offers flight deals from Illinois to Cairns by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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