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Cheap flights from Illinois to Cairns from $748

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
25 Apr — 2 May1
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 26 March 2026.

Thu 22/1015:40
ORD
-
CNS
2 stops34h 45m
Multiple Airlines
Tue 17/1106:00
CNS
-
ORD
2 stops26h 38m
Multiple Airlines
Deal found 21/3$2,080
Tue 5/506:21
STL
-
CNS
2 stops37h 54m
Multiple Airlines
Tue 12/521:10
CNS
-
STL
2 stops41h 49m
Multiple Airlines
Deal found 21/3$2,113
Thu 22/1015:40
ORD
-
CNS
2 stops34h 45m
Multiple Airlines
Thu 19/1106:00
CNS
-
ORD
2 stops24h 41m
Multiple Airlines
Deal found 21/3$2,133
Mon 4/515:40
ORD
-
CNS
2 stops31h 00m
Multiple Airlines
Tue 19/506:00
CNS
-
ORD
2 stops29h 15m
Multiple Airlines
Deal found 22/3$2,183
Fri 8/506:21
STL
-
CNS
2 stops37h 54m
Multiple Airlines
Fri 15/521:40
CNS
-
STL
2 stops41h 19m
Multiple Airlines
Deal found 24/3$2,205
Sat 12/914:40
STL
-
CNS
3 stops32h 00m
Multiple Airlines
Mon 28/919:10
CNS
-
STL
3 stops39h 50m
Multiple Airlines
Deal found 21/3$2,215
Thu 22/1014:15
ORD
-
CNS
3 stops33h 40m
Air Canada
Thu 19/1117:35
CNS
-
ORD
3 stops44h 24m
Air Canada
Deal found 21/3$2,288
Sun 13/914:40
STL
-
CNS
3 stops32h 00m
Multiple Airlines
Sun 27/919:10
CNS
-
STL
3 stops57h 50m
Multiple Airlines
Deal found 21/3$2,323
Sat 18/415:38
STL
-
CNS
2 stops29h 12m
Multiple Airlines
Sat 25/406:00
CNS
-
STL
3 stops28h 30m
Multiple Airlines
Deal found 21/3$2,334
Mon 17/815:40
ORD
-
CNS
2 stops33h 15m
Multiple Airlines
Sun 23/819:15
CNS
-
ORD
2 stops41h 50m
Multiple Airlines
Deal found 22/3$2,354
Tue 28/715:40
ORD
-
CNS
2 stops28h 30m
Air Canada
Fri 7/806:00
CNS
-
ORD
2 stops23h 41m
Air Canada
Deal found 22/3$2,356
Sat 18/406:21
STL
-
CNS
2 stops37h 14m
Qantas Airways
Sat 25/413:40
CNS
-
STL
2 stops49h 17m
Qantas Airways
Deal found 21/3$2,364

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 26 March 2026.

Round-trip from

$2,113

One-way from

$748
5/5-12/5
  • 5/5-12/5
  • 4 total stops
  • 79h 43m total
  • Illinois to Cairns
Search Deals
30/5
  • 30/5
  • 2 total stops
  • 26h 35m 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 26 March 2026.
Use the filters below to find and compare flights from Illinois to Cairns that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Tue 5/5

06:21-11:15

2 stops37h 54m

Cairns

Tue 12/5

21:10-23:59

2 stops41h 49m

$2,113

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 4/5

15:40-13:40

2 stops31h 00m

Cairns

Tue 19/5

06:00-20:15

2 stops29h 15m

$2,183

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Fri 8/5

06:21-11:15

2 stops37h 54m

Cairns

Fri 15/5

21:40-23:59

2 stops41h 19m

$2,205

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sun 13/9

14:40-13:40

3 stops32h 00m

Cairns

Sun 27/9

19:10-14:00

3 stops57h 50m

$2,323

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 18/4

15:38-11:50

2 stops29h 12m

Cairns

Sat 25/4

06:00-19:30

3 stops28h 30m

$2,334

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 17/8

15:40-15:55

2 stops33h 15m

Cairns

Sun 23/8

19:15-22:05

2 stops41h 50m

$2,354

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 18/4

06:21-10:35

2 stops37h 14m

Cairns

Sat 25/4

13:40-23:57

2 stops49h 17m

$2,364

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 12/9

17:11-11:50

2 stops27h 39m

Cairns

Sun 27/9

06:50-19:46

2 stops27h 56m

$2,473
Fastest return journey

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 1/8

17:10-10:35

2 stops26h 25m

Cairns

Mon 17/8

15:45-05:18

2 stops28h 33m

$2,592

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 12/4

17:45-04:30

1 stop43h 45m

Cairns

Sat 25/4

12:40-08:05

2 stops34h 25m

$2,742

Flights are sorted by cheapest return flights first.

Deals found on 21/3

Showing 1-10 of 17 resultsSorted by cheapest first
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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.

  • 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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