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$578+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This oojo deal was found by Cheapflights users on 12/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/182:35 pmORD - CNS
1 stop27h 20mCathay Pacific
Thu 12/2511:25 amCNS - ORD
1 stop41h 30mCathay Pacific
Deal found 12/17$2,280
This Priceline deal was found by Cheapflights users on 12/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/181:15 pmORD - CNS
2 stops29h 30mMultiple Airlines
Thu 12/256:00 amCNS - ORD
2 stops25h 33mMultiple Airlines
Deal found 12/17$3,014
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/192:35 pmORD - CNS
2 stops57h 40mCathay Pacific
Mon 1/2611:35 amCNS - ORD
2 stops41h 20mCathay Pacific
Deal found 12/16$8,736
This Air Canada deal was found by Cheapflights users on 12/17. 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 12/191:05 pmORD - CNS
2 stops33h 00mMultiple Airlines
Mon 1/266:00 amCNS - ORD
2 stops26h 42mMultiple Airlines
Deal found 12/17$9,245
This Air Canada deal was found by Cheapflights users on 12/16. 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 12/191:13 pmORD - CNS
3 stops33h 42mAir Canada
Mon 1/265:35 pmCNS - ORD
3 stops44h 30mAir Canada
Deal found 12/16$18,321

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,355
(Qantas Airways)

One-way from

$578
(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 December 18, 2025.
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

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Fri 1/30

5:10 pm-11:00 am

2 stops25h 50m

Cairns

Fri 2/6

11:45 am-11:59 pm

2 stops28h 14m

$1,355

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 5/23

5:52 pm-6:25 pm

2 stops33h 33m

Cairns

Sat 6/6

6:45 am-9:00 pm

2 stops29h 15m

$1,409

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Fri 1/30

5:10 pm-11:00 am

2 stops25h 50m

Cairns

Fri 2/6

9:20 am-9:23 pm

3 stops28h 03m

$1,469

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 2/22

3:35 pm-2:55 pm

2 stops31h 20m

Cairns

Thu 2/26

6:00 am-2:41 pm

2 stops24h 41m

$1,627

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 5/23

8:20 pm-3:55 pm

3 stops52h 35m

Cairns

Sat 6/6

7:15 pm-2:45 pm

2 stops34h 30m

$1,717

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Tue 2/17

6:30 am-9:55 am

2 stops35h 25m

Cairns

Sat 2/21

11:25 am-11:48 pm

2 stops28h 23m

$1,732

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 2/22

2:35 pm-9:55 am

1 stop27h 20m

Cairns

Thu 2/26

11:25 am-12:55 pm

1 stop41h 30m

$1,971

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 3/4

1:30 pm-5:45 am

2 stops48h 15m

$578

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 3/2

1:30 pm-5:45 am

2 stops48h 15m

$591

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Fri 4/10

1:10 pm-5:30 am

2 stops49h 20m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 18 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, Air Canada, and Cathay Pacific fly from Illinois to Cairns in about 25h 50m. The time it takes to get you to your destination can typically vary by up to 9h 35m. 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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