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Cheap flights from Illinois to Cairns from $731

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
31 May — 7 Jun1
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 1 May 2026.

Sun 14/606:35
STL
-
CNS
2 stops40h 05m
Multiple Airlines
Sun 21/606:45
CNS
-
STL
2 stops24h 48m
Multiple Airlines
Deal found 30/4$2,242
Wed 14/1019:03
ORD
-
CNS
2 stops25h 52m
American Airlines
Sun 1/1106:00
CNS
-
ORD
2 stops31h 25m
American Airlines
Deal found 27/4$2,386
Wed 14/1019:20
ORD
-
CNS
2 stops43h 10m
Multiple Airlines
Sun 1/1109:45
CNS
-
ORD
3 stops44h 45m
Multiple Airlines
Deal found 27/4$2,452
Wed 1/715:47
ORD
-
CNS
2 stops37h 33m
United Airlines
Fri 10/706:00
CNS
-
ORD
2 stops25h 38m
United Airlines
Deal found 27/4$2,506
Mon 2/1114:00
ORD
-
CNS
3 stops35h 25m
Multiple Airlines
Tue 17/1106:00
CNS
-
ORD
2 stops24h 41m
Multiple Airlines
Deal found 30/4$2,514
Tue 30/621:30
ORD
-
CNS
2 stops55h 50m
United Airlines
Wed 8/706:00
CNS
-
ORD
2 stops23h 50m
United Airlines
Deal found 27/4$2,523
Fri 27/1116:45
ORD
-
CNS
2 stops26h 20m
Qantas Airways
Tue 15/1206:00
CNS
-
ORD
2 stops26h 54m
Qantas Airways
Deal found 27/4$2,554
Mon 25/517:10
ORD
-
CNS
2 stops26h 25m
American Airlines
Mon 1/615:45
CNS
-
ORD
2 stops30h 30m
American Airlines
Deal found 27/4$2,587
Sun 28/615:23
ORD
-
CNS
2 stops30h 32m
American Airlines
Tue 7/715:45
CNS
-
ORD
2 stops28h 24m
American Airlines
Deal found 27/4$2,595
Tue 30/612:46
ORD
-
CNS
2 stops40h 34m
United Airlines
Tue 7/706:00
CNS
-
ORD
2 stops30h 34m
United Airlines
Deal found 27/4$2,611
Mon 29/623:00
ORD
-
CNS
2 stops54h 20m
United Airlines
Tue 7/706:00
CNS
-
ORD
2 stops27h 35m
United Airlines
Deal found 27/4$2,629
Thu 25/615:23
ORD
-
CNS
2 stops28h 12m
Qantas Airways
Thu 9/715:45
CNS
-
ORD
2 stops41h 27m
Qantas Airways
Deal found 27/4$2,678

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 1 May 2026.

Round-trip from

$2,242

One-way from

$731
14/6-21/6
  • 14/6-21/6
  • 4 total stops
  • 64h 53m total
  • Illinois to Cairns
Search Deals
5/9
  • 5/9
  • 2 total stops
  • 28h 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 1 May 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

Sun 14/6

06:35-13:40

2 stops40h 05m

Cairns

Sun 21/6

06:45-16:33

2 stops24h 48m

$2,242

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 30/6

21:35-20:20

2 stops55h 45m

Cairns

Fri 10/7

06:00-20:34

2 stops29h 34m

$2,523

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 27/6

08:10-19:30

2 stops44h 20m

Cairns

Wed 8/7

15:45-16:50

2 stops40h 05m

$2,678

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 30/6

17:10-19:30

2 stops35h 20m

Cairns

Thu 9/7

15:45-18:12

2 stops41h 27m

$2,713

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Thu 10/9

19:20-09:50

2 stops47h 30m

Cairns

Mon 14/9

21:00-15:05

2 stops57h 05m

$2,913

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 29/8

19:20-09:50

2 stops47h 30m

Cairns

Wed 2/9

12:10-15:05

2 stops65h 55m

$2,989
Fastest return journey

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 28/6

18:59-12:55

2 stops26h 56m

Cairns

Tue 7/7

11:20-00:07

3 stops27h 47m

$3,023

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 26/10

18:51-11:05

2 stops25h 14m

Cairns

Fri 30/10

17:40-23:05

2 stops44h 25m

$3,347

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 10/6

18:59-12:55

2 stops26h 56m

Cairns

Wed 17/6

15:45-06:44

3 stops29h 59m

$3,375

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 26/10

16:17-19:05

3 stops35h 48m

Cairns

Fri 30/10

06:00-17:53

2 stops26h 53m

$3,415

Flights are sorted by cheapest return flights first.

Deals found on 26/4

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 United Airlines, Qantas Airways, and Qatar Airways fly from Illinois to Cairns in about 44h 20m. The time it takes to get you to your destination can typically vary by up to 11h 25m. Illinois and Cairns are separated by a distance of 14225 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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Why should you use Cheapflights to find cheap flight tickets from Illinois to Cairns?

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

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