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Cheap flights from Illinois to Cairns from $2,197

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
7 May — 14 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 7 April 2026.

Mon 4/515:40
ORD
-
CNS
2 stops31h 00m
Multiple Airlines
Mon 11/519:10
CNS
-
ORD
2 stops34h 35m
Multiple Airlines
Deal found 6/4$2,197
Mon 4/516:50
ORD
-
CNS
3 stops56h 05m
Air Canada
Mon 11/516:35
CNS
-
ORD
3 stops61h 20m
Air Canada
Deal found 6/4$2,232
Fri 22/509:55
ORD
-
CNS
3 stops39h 00m
Air Canada
Fri 29/506:00
CNS
-
ORD
2 stops23h 45m
Air Canada
Deal found 7/4$2,372
Fri 22/515:40
ORD
-
CNS
2 stops31h 00m
Multiple Airlines
Fri 29/506:00
CNS
-
ORD
2 stops23h 45m
Multiple Airlines
Deal found 7/4$2,411
Mon 13/719:45
ORD
-
CNS
2 stops26h 25m
Multiple Airlines
Wed 19/806:00
CNS
-
ORD
2 stops23h 41m
Multiple Airlines
Deal found 5/4$2,414
Wed 6/515:40
ORD
-
CNS
2 stops28h 30m
Multiple Airlines
Wed 13/516:35
CNS
-
ORD
2 stops37h 10m
Multiple Airlines
Deal found 6/4$2,530
Tue 28/719:45
ORD
-
CNS
2 stops26h 25m
Multiple Airlines
Fri 7/806:00
CNS
-
ORD
2 stops23h 41m
Multiple Airlines
Deal found 6/4$2,549
Sat 4/706:36
STL
-
CNS
2 stops37h 39m
Multiple Airlines
Sat 11/706:45
CNS
-
STL
2 stops32h 14m
Multiple Airlines
Deal found 4/4$2,647
Mon 13/407:13
ORD
-
CNS
2 stops30h 17m
Multiple Airlines
Sat 25/410:15
CNS
-
ORD
2 stops34h 20m
Multiple Airlines
Deal found 2/4$2,676
Fri 22/519:20
STL
-
CNS
2 stops49h 30m
Qantas Airways
Fri 29/513:40
CNS
-
STL
2 stops42h 01m
Qantas Airways
Deal found 7/4$2,721
Thu 17/906:14
STL
-
CNS
2 stops37h 31m
Air New Zealand
Mon 28/918:20
CNS
-
STL
3 stops37h 15m
Air New Zealand
Deal found 4/4$2,764
Thu 17/914:40
STL
-
CNS
3 stops36h 45m
Multiple Airlines
Mon 28/919:10
CNS
-
STL
3 stops39h 50m
Multiple Airlines
Deal found 4/4$2,771

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 7 April 2026.

Round-trip from

$2,197
4/5-11/5
  • 4/5-11/5
  • 4 total stops
  • 65h 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 7 April 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

Thu 17/9

06:14-10:45

2 stops37h 31m

Cairns

Mon 28/9

18:20-16:35

3 stops37h 15m

$2,765

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 17/9

06:30-12:55

2 stops39h 25m

Cairns

Mon 28/9

17:00-23:02

2 stops45h 02m

$2,781

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 28/7

19:01-12:55

2 stops26h 54m

Cairns

Fri 7/8

11:20-00:12

3 stops27h 52m

$2,822

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 13/7

20:40-15:55

3 stops52h 15m

Cairns

Wed 19/8

16:35-14:55

3 stops61h 20m

$2,855

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 4/7

06:36-10:35

2 stops36h 59m

Cairns

Sat 11/7

21:40-13:53

3 stops55h 13m

$2,870
Fastest return journey

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Fri 22/5

19:23-11:10

2 stops24h 47m

Cairns

Fri 29/5

06:00-18:17

2 stops27h 17m

$2,936

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 25/4

15:40-15:55

2 stops33h 15m

Cairns

Wed 29/4

06:00-14:45

2 stops23h 45m

$3,493

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 26/9

06:30-16:55

2 stops43h 25m

Cairns

Wed 30/9

13:40-16:42

2 stops42h 02m

$3,665

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 25/4

21:13-22:45

2 stops34h 32m

Cairns

Wed 29/4

13:40-19:57

2 stops45h 17m

$3,704

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 26/9

19:06-20:20

2 stops34h 14m

Cairns

Wed 30/9

06:00-15:38

3 stops48h 38m

$3,941

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Showing 1-10 of 11 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 Air New Zealand, Qantas Airways, and Air Canada fly from Illinois to Cairns in about 37h 31m. The time it takes to get you to your destination can typically vary by up to 14h 44m. 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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