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Cheap flights from Illinois to Cairns from $866

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Cairns

Keep the following information in mind while searching for Illinois to Cairns flight deals. Data was last updated 27 November 2025.

Round-trip from

$2,017

One-way from

$866
10/2-10/3
  • 10/2-10/3
  • 4 total stops
  • 69h 31m total
  • Illinois to Cairns
Search Deals
18/3
  • 18/3
  • 2 total stops
  • 48h 15m total
  • Illinois to Cairns
Search Deals

Find 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 27 November 2025.

Tue 9/1215:05ORD - CNS
2 stops31h 00mQantas Airways
Tue 16/1206:00CNS - ORD
2 stops26h 02mQantas Airways
Deal found 26/11$2,303
Tue 9/1217:10ORD - CNS
2 stops25h 50mMultiple Airlines
Wed 17/1206:40CNS - ORD
2 stops33h 19mMultiple Airlines
Deal found 26/11$2,337
Mon 8/1215:11ORD - CNS
2 stops30h 39mQantas Airways
Tue 16/1206:00CNS - ORD
2 stops27h 52mQantas Airways
Deal found 26/11$2,349
Sun 7/1218:17ORD - CNS
2 stops36h 48mQantas Airways
Tue 16/1206:00CNS - ORD
2 stops26h 02mQantas Airways
Deal found 26/11$2,360
Sun 7/1215:59ORD - CNS
2 stops39h 06mQantas Airways
Sun 14/1217:35CNS - ORD
2 stops39h 37mQantas Airways
Deal found 26/11$2,363
Sun 7/1215:59ORD - CNS
2 stops39h 06mQantas Airways
Sat 13/1218:05CNS - ORD
2 stops43h 20mQantas Airways
Deal found 26/11$2,374
Sun 7/1216:25ORD - CNS
1 stop44h 10mMultiple Airlines
Sun 14/1223:55CNS - ORD
2 stops46h 10mMultiple Airlines
Deal found 25/11$2,380
Tue 9/1218:17ORD - CNS
2 stops24h 43mMultiple Airlines
Tue 16/1212:35CNS - ORD
2 stops32h 45mMultiple Airlines
Deal found 26/11$2,385
Tue 9/1215:05ORD - CNS
2 stops27h 55mQantas Airways
Sat 13/1215:35CNS - ORD
2 stops39h 51mQantas Airways
Deal found 26/11$2,391
Mon 8/1217:10ORD - CNS
2 stops25h 50mMultiple Airlines
Wed 17/1206:40CNS - ORD
2 stops30h 45mMultiple Airlines
Deal found 26/11$2,398

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 27 November 2025.
Use the filters below to find and compare flights from Illinois to Cairns that are best for you.

Fly from

Illinois

Fly to

Cairns

Route

Depart

Return

Price

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sun 15/2

10:04-09:55

2 stops31h 51m

Cairns

Thu 19/2

11:25-23:18

2 stops51h 53m

$2,386

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 15/2

14:35-09:55

1 stop27h 20m

Cairns

Thu 19/2

11:25-12:55

1 stop41h 30m

$3,026

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 9/12

14:35-09:55

1 stop27h 20m

Cairns

Tue 16/12

11:25-12:10

2 stops40h 45m

$3,035

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 9/12

14:35-09:55

1 stop27h 20m

Cairns

Thu 18/12

11:25-12:55

1 stop41h 30m

$3,109

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 6/12

13:51-23:05

2 stops41h 14m

Cairns

Fri 19/12

17:35-21:25

2 stops43h 50m

$3,132

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sun 7/12

14:35-09:55

1 stop27h 20m

Cairns

Thu 18/12

11:25-12:55

1 stop41h 30m

$3,192

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 18/3

14:30-05:45

2 stops48h 15m

$866

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 16/12

18:17-23:05

2 stops36h 48m

$2,511

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 16/12

06:00-09:55

2 stops35h 55m

$2,532

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 16/12

14:35-09:55

1 stop27h 20m

$2,997

Flights are sorted by cheapest return flights first.

Deals found on 24/11

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 Cathay Pacific fly from Illinois to Cairns in about 31h 51m. 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 14080 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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