Find flights
When to book
FAQs

Cheap flights from Illinois to Cairns from $967

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 19/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CNS
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 18 September 2025.

Round-trip from

$1,962

One-way from

$967
Qantas Airways
  • Qantas Airways
  • 1/11-8/11
  • 4 total stops
  • 50h 58m total
  • Illinois to Cairns
Search Deals
19/11
  • 19/11
  • 3 total stops
  • 38h 45m total
  • Illinois to Cairns
Search Deals

Find flight deals from Illinois to Cairns

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 18 September 2025.

Sat 1/1117:09STL - CNS
2 stops26h 51mQantas Airways
Sat 8/1115:35CNS - STL
2 stops24h 07mQantas Airways
Deal found 16/9$1,962
Thu 13/1118:13STL - CNS
2 stops25h 22mFiji Airways
Mon 17/1112:35CNS - STL
2 stops27h 07mFiji Airways
Deal found 17/9$1,980
Sat 1/1113:35STL - CNS
3 stops33h 25mAir Canada
Sat 8/1106:00CNS - STL
3 stops26h 28mAir Canada
Deal found 16/9$2,655
Mon 20/1019:40ORD - CNS
3 stops46h 05mMultiple Airlines
Wed 5/1119:15CNS - ORD
2 stops35h 15mMultiple Airlines
Deal found 17/9$2,667
Mon 20/1015:14ORD - CNS
2 stops28h 51mAmerican Airlines
Wed 5/1115:35CNS - ORD
2 stops24h 24mAmerican Airlines
Deal found 16/9$2,755
Thu 13/1116:05STL - CNS
3 stops54h 50mAir Canada
Mon 17/1117:35CNS - STL
3 stops61h 54mAir Canada
Deal found 15/9$3,032
Tue 30/920:35ORD - CNS
2 stops47h 30mEmirates
Fri 3/1014:25CNS - ORD
2 stops40h 20mEmirates
Deal found 16/9$6,290
Fri 19/1216:20ORD - CNS
2 stops57h 00mMultiple Airlines
Mon 26/118:35CNS - ORD
2 stops37h 45mMultiple Airlines
Deal found 17/9$12,684
Fri 19/1213:16ORD - CNS
2 stops29h 29mQantas Airways
Mon 26/111:45CNS - ORD
2 stops41h 29mQantas Airways
Deal found 16/9$15,334
Mon 20/1012:10ORD - CNS
1 stop25h 15mJapan Airlines
Wed 5/1111:55CNS - ORD
1 stop41h 45mJapan Airlines
Deal found 16/9$15,869

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 18 September 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

Sat 1/11

17:09-11:00

2 stops26h 51m

Cairns

Sat 8/11

15:35-23:42

2 stops24h 07m

$1,962

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Thu 13/11

18:13-11:35

2 stops25h 22m

Cairns

Mon 17/11

12:35-23:42

2 stops27h 07m

$1,980

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 1/11

13:35-14:00

3 stops33h 25m

Cairns

Sat 8/11

06:00-16:28

3 stops26h 28m

$2,655

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 20/10

19:40-08:45

3 stops46h 05m

Cairns

Wed 5/11

19:15-14:30

2 stops35h 15m

$2,667

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 20/10

15:14-11:05

2 stops28h 51m

Cairns

Wed 5/11

15:35-23:59

2 stops24h 24m

$2,755

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 30/9

20:35-11:05

2 stops47h 30m

Cairns

Fri 3/10

14:25-15:45

2 stops40h 20m

$6,290

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Fri 19/12

16:20-17:20

2 stops57h 00m

Cairns

Mon 26/1

18:35-16:20

2 stops37h 45m

$12,684

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Fri 19/12

13:16-10:45

2 stops29h 29m

Cairns

Mon 26/1

11:45-13:14

2 stops41h 29m

$15,334

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 20/10

12:10-04:25

1 stop25h 15m

Cairns

Wed 5/11

11:55-13:40

1 stop41h 45m

$15,869

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 19/11

10:00-16:45

3 stops38h 45m

$967

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 14 results
1
2

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, Fiji Airways, and American Airlines fly from Illinois to Cairns in about 25h 22m. The time it takes to get you to your destination can typically vary by up to 3h 29m. 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.

  • What is the cheapest month to book a flight from Illinois to Cairns?

    Currently, March is the cheapest month in which you can book a flight from Illinois to Cairns (average of $166). Flying from Illinois to Cairns in October is currently the most expensive (average of $233). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Trinity Beach
Mission Beach

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Cairns

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Brisbane flights
Dallas/Fort Worth to Brisbane flights
San Francisco to Brisbane flights
John F Kennedy Intl to Brisbane flights
Newark to Brisbane flights
LaGuardia to Brisbane flights
Ontario to Brisbane flights
Seattle to Brisbane flights
Dulles Intl to Brisbane flights
Miami to Brisbane flights
Portland to Brisbane flights
Baltimore to Brisbane flights
Hobby to Brisbane flights
O'Hare Intl to Brisbane flights
Denver to Brisbane flights
Atlanta to Brisbane flights
Detroit to Brisbane flights
Minneapolis to Brisbane flights
Philadelphia to Brisbane flights
George Bush Intcntl to Brisbane flights
Honolulu to Brisbane flights
Sky Harbor Intl to Brisbane flights
San Jose to Brisbane flights
Boston to Brisbane flights
Salt Lake City to Brisbane flights
Dallas/Fort Worth to Coolangatta flights
Austin to Brisbane flights
Los Angeles to Cairns flights
Raleigh to Brisbane flights
Indianapolis to Brisbane flights
Las Vegas to Brisbane flights
San Diego to Brisbane flights
Charlotte to Brisbane flights
Orlando to Brisbane flights
New Orleans to Brisbane flights
Oakland to Brisbane flights
Los Angeles to Coolangatta flights
Nashville to Brisbane flights
Tampa to Brisbane flights
Dallas/Fort Worth to Cairns flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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.

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.

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.

Can Cheapflights notify me if prices for flights from Illinois to Cairns become cheaper?

Of course! You can now track prices for flights from Illinois to Cairns and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.