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Cheap flights from Illinois to Cairns from $1,386

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Cairns

Enter your travel dates to find the best prices.

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 28 January 2026.

Tue 24/214:33
ORD
-
CNS
2 stops28h 27m
Qantas Airways
Tue 3/315:35
CNS
-
ORD
2 stops24h 12m
Qantas Airways
Deal found 27/1$1,943
Thu 12/316:44
ORD
-
CNS
2 stops27h 16m
Qantas Airways
Thu 19/314:50
CNS
-
ORD
2 stops23h 57m
Qantas Airways
Deal found 26/1$2,077
Sat 14/316:45
ORD
-
CNS
2 stops30h 20m
Qantas Airways
Sat 21/315:35
CNS
-
ORD
2 stops23h 20m
Qantas Airways
Deal found 27/1$2,078
Mon 4/515:36
STL
-
CNS
2 stops29h 14m
Qantas Airways
Sun 9/812:35
CNS
-
STL
2 stops44h 54m
Qantas Airways
Deal found 27/1$2,094
Tue 24/214:00
ORD
-
CNS
3 stops35h 30m
Multiple Airlines
Tue 3/306:00
CNS
-
ORD
2 stops24h 41m
Multiple Airlines
Deal found 27/1$2,122
Mon 16/316:44
ORD
-
CNS
2 stops27h 16m
Multiple Airlines
Sat 21/311:45
CNS
-
ORD
2 stops27h 10m
Multiple Airlines
Deal found 27/1$2,186
Mon 16/216:13
STL
-
CNS
2 stops29h 52m
Qantas Airways
Fri 20/215:35
CNS
-
STL
2 stops41h 38m
Qantas Airways
Deal found 26/1$2,337
Fri 13/214:58
ORD
-
CNS
2 stops28h 02m
Qantas Airways
Tue 17/215:35
CNS
-
ORD
2 stops38h 22m
Qantas Airways
Deal found 26/1$2,421
Sat 21/313:14
ORD
-
CNS
2 stops30h 46m
Qantas Airways
Sat 28/318:05
CNS
-
ORD
2 stops42h 30m
Qantas Airways
Deal found 27/1$2,552
Sat 14/319:50
ORD
-
CNS
2 stops29h 25m
Air New Zealand
Sat 21/314:50
CNS
-
ORD
3 stops49h 08m
Air New Zealand
Deal found 27/1$2,683
Tue 24/214:35
ORD
-
CNS
1 stop27h 20m
Cathay Pacific
Tue 3/311:35
CNS
-
ORD
2 stops41h 20m
Cathay Pacific
Deal found 27/1$2,844
Mon 4/514:20
STL
-
CNS
3 stops32h 20m
Multiple Airlines
Sun 9/819:05
CNS
-
STL
3 stops57h 57m
Multiple Airlines
Deal found 26/1$2,942

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 28 January 2026.

Round-trip from

$1,943

One-way from

$1,386
Qantas Airways
  • Qantas Airways
  • 24/2-3/3
  • 4 total stops
  • 52h 39m total
  • Illinois to Cairns
Search Deals
10/7
  • 10/7
  • 3 total stops
  • 57h 40m total
  • Illinois to Cairns
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 28 January 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

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 24/2

14:33-11:00

2 stops28h 27m

Cairns

Tue 3/3

15:35-23:47

2 stops24h 12m

$1,943

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 4/5

15:36-22:40

2 stops40h 04m

Cairns

Sun 9/8

21:35-23:08

2 stops40h 33m

$2,006

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 14/3

16:45-14:05

2 stops30h 20m

Cairns

Sat 21/3

15:35-23:55

2 stops23h 20m

$2,078

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 4/5

15:36-11:50

2 stops29h 14m

Cairns

Sun 9/8

12:35-18:29

2 stops44h 54m

$2,094

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 24/2

14:00-17:30

3 stops35h 30m

Cairns

Tue 3/3

06:00-14:41

2 stops24h 41m

$2,122

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 16/3

16:44-11:00

2 stops27h 16m

Cairns

Sat 21/3

11:45-23:55

2 stops27h 10m

$2,186

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 28/5

06:36-11:05

2 stops37h 29m

Cairns

Thu 11/6

14:00-16:33

2 stops41h 33m

$2,286

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 16/2

16:13-14:05

2 stops29h 52m

Cairns

Fri 20/2

15:35-17:13

2 stops41h 38m

$2,337

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Fri 13/2

14:58-11:00

2 stops28h 02m

Cairns

Tue 17/2

15:35-13:57

2 stops38h 22m

$2,421

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 21/3

13:14-11:00

2 stops30h 46m

Cairns

Sat 28/3

18:05-21:35

2 stops42h 30m

$2,552

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 22 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 return 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?

    Most people fly into Cairns (CNS) if they book a flight to Cairns from Illinois. Cairns is conveniently located just 4.4 km from Cairns’s city centre.

  • How long is the flight from Illinois to Cairns?

    Airlines like Qantas Airways fly from Illinois to Cairns in about 28h 27m. The time it takes to get you to your destination can typically vary by up to . Illinois and Cairns are separated by a distance of 14225 km.

  • 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 holiday 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

Travelling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Mission Beach
Trinity Beach

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How does Cheapflights help users find flights from Illinois to Cairns?

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