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Cheap flights from Illinois to Cairns from $2,071

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
19 Aug — 26 Aug1
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 20 July 2026.

Mon 31/819:48
ORD
-
CNS
2 stops30h 22m
Multiple Airlines
Mon 7/916:35
CNS
-
ORD
2 stops37h 08m
Multiple Airlines
Deal found 17/7$2,071
Wed 18/1119:05
STL
-
CNS
2 stops26h 55m
United Airlines
Mon 14/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,138
Wed 18/1119:05
STL
-
CNS
2 stops29h 35m
Multiple Airlines
Sat 12/1214:40
CNS
-
STL
2 stops43h 13m
Multiple Airlines
Deal found 19/7$2,139
Thu 19/1119:05
STL
-
CNS
2 stops26h 55m
United Airlines
Tue 15/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,210
Thu 19/1119:05
STL
-
CNS
2 stops26h 55m
Multiple Airlines
Sat 12/1214:40
CNS
-
STL
2 stops43h 13m
Multiple Airlines
Deal found 19/7$2,211
Sat 8/815:40
ORD
-
CNS
2 stops28h 30m
Multiple Airlines
Thu 13/819:15
CNS
-
ORD
2 stops34h 21m
Multiple Airlines
Deal found 17/7$2,251
Thu 19/1119:05
STL
-
CNS
2 stops26h 55m
United Airlines
Thu 10/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,281
Wed 18/1119:05
STL
-
CNS
2 stops26h 55m
United Airlines
Fri 11/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,353
Wed 18/1113:08
STL
-
CNS
3 stops33h 47m
United Airlines
Sun 13/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,359
Thu 19/1119:05
STL
-
CNS
2 stops26h 55m
United Airlines
Fri 11/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,424
Wed 18/1113:08
STL
-
CNS
3 stops33h 47m
United Airlines
Thu 10/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,430
Thu 19/1113:08
STL
-
CNS
3 stops33h 47m
United Airlines
Sun 13/1206:00
CNS
-
STL
2 stops27h 53m
United Airlines
Deal found 19/7$2,436

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 20 July 2026.

Round-trip from

$2,071
Air Canada
  • Air Canada
  • 31/8-7/9
  • 4 total stops
  • 67h 30m 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 20 July 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

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 31/8

19:48-17:10

2 stops30h 22m

Cairns

Mon 7/9

16:35-14:43

2 stops37h 08m

$2,071

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Wed 18/11

19:05-16:40

2 stops29h 35m

Cairns

Sat 12/12

14:40-17:53

2 stops43h 13m

$2,139

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Wed 18/11

19:05-14:00

2 stops26h 55m

Cairns

Thu 10/12

06:00-17:53

2 stops27h 53m

$2,210

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 19/11

19:05-14:00

2 stops26h 55m

Cairns

Thu 10/12

06:00-17:53

2 stops27h 53m

$2,281

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 19/11

13:08-14:55

3 stops33h 47m

Cairns

Tue 15/12

06:00-17:53

2 stops27h 53m

$2,436

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 19/11

13:08-14:55

3 stops33h 47m

Cairns

Mon 14/12

06:00-17:53

2 stops27h 53m

$2,436

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 19/11

18:13-14:55

2 stops28h 42m

Cairns

Wed 9/12

06:00-23:57

2 stops33h 57m

$2,722

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 29/8

17:16-10:35

2 stops26h 19m

Cairns

Sat 5/9

15:45-05:24

3 stops28h 39m

$3,474

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 28/9

07:08-11:10

2 stops37h 02m

Cairns

Fri 2/10

06:00-18:43

2 stops27h 43m

$3,524

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 9/8

19:20-23:20

2 stops37h 00m

Cairns

Sat 15/8

10:30-15:05

2 stops43h 35m

$3,667

Flights are sorted by cheapest return flights first.

Deals found on 17/7

Showing 1-10 of 14 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.

  • How long is the flight from Illinois to Cairns?

    Airlines like United Airlines and Qatar Airways fly from Illinois to Cairns in about 26h 55m. The time it takes to get you to your destination can typically vary by up to 10h 05m. Illinois and Cairns are separated by a distance of 14080 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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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Yes! Cheapflights helps users easily find flights from Illinois to Cairns with no change fees.

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