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Cheap flights from Illinois to Cairns from $2,023

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
2 Mar — 9 Mar1
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 31 January 2026.

Sun 1/316:49
ORD
-
CNS
2 stops36h 11m
Qantas Airways
Tue 10/315:35
CNS
-
ORD
2 stops23h 12m
Qantas Airways
Deal found 31/1$2,023
Sun 13/919:40
ORD
-
CNS
2 stops24h 30m
Multiple Airlines
Mon 21/906:00
CNS
-
ORD
2 stops23h 48m
Multiple Airlines
Deal found 30/1$2,029
Tue 17/318:08
STL
-
CNS
2 stops25h 52m
Multiple Airlines
Tue 24/306:00
CNS
-
STL
3 stops26h 13m
Multiple Airlines
Deal found 30/1$2,036
Sun 13/910:40
ORD
-
CNS
3 stops38h 15m
Air Canada
Mon 21/906:00
CNS
-
ORD
2 stops23h 48m
Air Canada
Deal found 30/1$2,046
Tue 3/316:49
ORD
-
CNS
2 stops38h 16m
Qantas Airways
Tue 10/309:20
CNS
-
ORD
2 stops29h 27m
Qantas Airways
Deal found 31/1$2,071
Mon 4/515:36
STL
-
CNS
2 stops29h 14m
Qantas Airways
Sun 9/812:35
CNS
-
STL
2 stops49h 33m
Qantas Airways
Deal found 30/1$2,084
Mon 2/316:49
ORD
-
CNS
2 stops26h 11m
Qantas Airways
Wed 11/315:35
CNS
-
ORD
2 stops23h 12m
Qantas Airways
Deal found 31/1$2,129
Sat 28/216:49
ORD
-
CNS
2 stops38h 16m
Qantas Airways
Tue 10/315:35
CNS
-
ORD
2 stops23h 12m
Qantas Airways
Deal found 31/1$2,143
Sun 15/309:25
ORD
-
CNS
2 stops34h 35m
Qantas Airways
Sun 22/311:45
CNS
-
ORD
3 stops32h 52m
Qantas Airways
Deal found 29/1$2,177
Tue 3/217:10
ORD
-
CNS
2 stops28h 55m
Qantas Airways
Sat 21/214:50
CNS
-
ORD
2 stops44h 50m
Qantas Airways
Deal found 29/1$2,226
Wed 4/313:15
ORD
-
CNS
2 stops32h 50m
Qantas Airways
Mon 9/317:35
CNS
-
ORD
2 stops34h 29m
Qantas Airways
Deal found 31/1$2,232
Mon 16/211:46
STL
-
CNS
2 stops43h 19m
Qantas Airways
Fri 20/212:35
CNS
-
STL
2 stops44h 38m
Qantas Airways
Deal found 28/1$2,343

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 31 January 2026.

Round-trip from

$2,023
Qantas Airways
  • Qantas Airways
  • 1/3-10/3
  • 4 total stops
  • 57h 04m 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 31 January 2026.
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

Tue 17/3

18:08-11:00

2 stops25h 52m

Cairns

Tue 24/3

06:00-17:13

3 stops26h 13m

$2,036

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 4/3

13:15-21:00

2 stops39h 45m

Cairns

Wed 11/3

09:20-23:47

2 stops29h 27m

$2,071

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 3/3

16:49-23:05

2 stops38h 16m

Cairns

Mon 9/3

17:35-23:47

2 stops45h 12m

$2,071

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 3/3

16:49-23:05

2 stops38h 16m

Cairns

Tue 10/3

09:20-23:47

2 stops29h 27m

$2,071

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 4/5

15:36-11:50

2 stops29h 14m

Cairns

Sun 9/8

12:35-23:08

2 stops49h 33m

$2,084

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 2/3

16:49-11:00

2 stops26h 11m

Cairns

Wed 11/3

15:35-23:47

2 stops23h 12m

$2,129

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 4/3

13:15-14:05

2 stops32h 50m

Cairns

Fri 13/3

11:45-23:47

2 stops27h 02m

$2,143

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 28/2

16:49-23:05

2 stops38h 16m

Cairns

Tue 10/3

15:35-23:47

2 stops23h 12m

$2,143

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 4/3

13:15-14:05

2 stops32h 50m

Cairns

Thu 12/3

09:20-23:47

2 stops29h 27m

$2,143

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 28/2

16:49-23:05

2 stops38h 16m

Cairns

Mon 9/3

14:50-23:47

2 stops23h 57m

$2,143

Flights are sorted by cheapest return flights first.

Deals found on 30/1

Showing 1-10 of 20 results
1
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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 Qantas Airways fly from Illinois to Cairns in about 39h 45m. 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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Fly with Cheapflights

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How does Cheapflights help users find flights from Illinois to Cairns?

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Why should you use Cheapflights to find cheap flight tickets from Illinois to Cairns?

Millions of users choose and trust Cheapflights to book the best flight deals from Illinois to Cairns for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

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