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Cheap flights from Illinois to Cairns from $1,126

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
15 Jul — 22 Jul1
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 15 June 2026.

Sun 26/714:31
STL
-
CNS
3 stops33h 29m
Multiple Airlines
Sun 2/821:40
CNS
-
STL
2 stops41h 19m
Multiple Airlines
Deal found 11/6$2,345
Wed 29/715:40
ORD
-
CNS
2 stops40h 05m
Multiple Airlines
Wed 5/806:00
CNS
-
ORD
2 stops23h 36m
Multiple Airlines
Deal found 14/6$2,346
Fri 14/817:16
ORD
-
CNS
2 stops30h 44m
American Airlines
Sun 30/815:45
CNS
-
ORD
2 stops30h 25m
American Airlines
Deal found 15/6$2,403
Sat 15/819:00
ORD
-
CNS
2 stops26h 55m
American Airlines
Sun 30/815:45
CNS
-
ORD
2 stops30h 25m
American Airlines
Deal found 15/6$2,410
Sun 16/812:59
ORD
-
CNS
3 stops35h 56m
Multiple Airlines
Sun 30/819:10
CNS
-
ORD
2 stops34h 26m
Multiple Airlines
Deal found 15/6$2,513
Tue 28/715:40
ORD
-
CNS
2 stops28h 30m
Multiple Airlines
Fri 7/806:00
CNS
-
ORD
2 stops23h 36m
Multiple Airlines
Deal found 13/6$2,528
Tue 28/715:40
ORD
-
CNS
2 stops28h 30m
Air Canada
Fri 7/806:00
CNS
-
ORD
2 stops23h 36m
Air Canada
Deal found 11/6$2,530
Sat 15/817:53
ORD
-
CNS
3 stops55h 02m
Air Canada
Sun 30/819:15
CNS
-
ORD
2 stops34h 21m
Air Canada
Deal found 15/6$2,575
Wed 29/712:55
ORD
-
CNS
3 stops36h 00m
Air Canada
Wed 5/806:00
CNS
-
ORD
2 stops23h 36m
Air Canada
Deal found 14/6$2,657

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 15 June 2026.

Round-trip from

$2,345

One-way from

$1,126
26/7-2/8
  • 26/7-2/8
  • 5 total stops
  • 74h 48m total
  • Illinois to Cairns
Search Deals
27/9
  • 27/9
  • 3 total stops
  • 28h 28m 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 15 June 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 26/7

14:31-15:00

3 stops33h 29m

Cairns

Sun 2/8

21:40-23:59

2 stops41h 19m

$2,345

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 28/7

15:40-11:10

2 stops28h 30m

Cairns

Fri 7/8

06:00-14:36

2 stops23h 36m

$2,528
Fastest return journey

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 28/7

15:40-11:10

2 stops28h 30m

Cairns

Fri 7/8

06:00-14:36

2 stops23h 36m

$2,530

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 11/7

17:35-15:55

3 stops55h 20m

Cairns

Sat 18/7

09:25-14:36

2 stops44h 11m

$3,759

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 15/8

10:11-17:00

3 stops39h 49m

Cairns

Sun 30/8

18:15-16:15

3 stops37h 00m

$4,593

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Thu 30/7

20:35-08:40

2 stops69h 05m

Cairns

Thu 6/8

13:40-15:45

2 stops41h 05m

$5,345
Cheapest one-way
Fastest single journey

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 27/9

13:02-08:30

3 stops28h 28m

$1,126

Flights are sorted by cheapest return flights first.

Deals found on 14/6

Sorted by cheapest first

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 American Airlines fly from Illinois to Cairns in about 30h 44m. 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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Cheapflights makes it easy to find Illinois to Cairns flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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Can Cheapflights find flights from Illinois to Cairns with no change fees?

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

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