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Cheap flights from Illinois to Cairns from $1,115

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Cairns departing on 8/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Cairns

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:48 pm - 4:55 pmORD  Chicago O'Hare Intl-CNS Cairns
30h 07m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
7:15 pm - 2:43 pmCNS  Cairns-ORD Chicago O'Hare Intl
34h 28m2 stops Sydney Kingsford Smith Vancouver Intl
$1,494Multiple Airlines
Sat, Sep 12 - Fri, Sep 18
Multiple Airlines Logo
6:30 am - 4:40 pmORD  Chicago O'Hare Intl-CNS Cairns
43h 10m3 stops Denver Intl Los Angeles Melbourne
Multiple Airlines Logo
6:50 am - 5:38 amCNS  Cairns-ORD Chicago O'Hare Intl
37h 48m3 stops Sydney Kingsford Smith Los Angeles Las Vegas Harry Reid Intl
$1,634Multiple Airlines
Sat, Sep 26 - Sat, Oct 3
Qatar Airways Logo
6:50 pm - 7:05 pmORD  Chicago O'Hare Intl-CNS Cairns
56h 15m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
5:25 pm - 2:30 pmCNS  Cairns-ORD Chicago O'Hare Intl
37h 05m2 stops Brisbane Doha Hamad Intl
$1,653Qatar Airways
Mon, Nov 9 - Tue, Dec 1
Qatar Airways Logo
6:50 pm - 7:05 pmORD  Chicago O'Hare Intl-CNS Cairns
56h 15m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
5:25 pm - 2:30 pmCNS  Cairns-ORD Chicago O'Hare Intl
37h 05m2 stops Brisbane Doha Hamad Intl
$1,657Qatar Airways
Mon, Nov 9 - Tue, Dec 1
Multiple Airlines Logo
9:55 am - 4:30 amORD  Chicago O'Hare Intl-CNS Cairns
27h 35m2 stops Toronto Pearson Intl Tokyo Narita
Multiple Airlines Logo
6:00 am - 2:43 pmCNS  Cairns-ORD Chicago O'Hare Intl
23h 43m2 stops Brisbane Vancouver Intl
$1,666Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Qatar Airways Logo
6:50 pm - 11:05 pmORD  Chicago O'Hare Intl-CNS Cairns
36h 15m2 stops Doha Hamad Intl Brisbane
Qatar Airways Logo
5:25 pm - 2:30 pmCNS  Cairns-ORD Chicago O'Hare Intl
37h 05m2 stops Brisbane Doha Hamad Intl
$1,669Qatar Airways
Mon, Nov 9 - Tue, Dec 1
Multiple Airlines Logo
9:55 am - 4:30 amORD  Chicago O'Hare Intl-CNS Cairns
27h 35m2 stops Toronto Pearson Intl Tokyo Narita
Multiple Airlines Logo
7:15 pm - 7:48 pmCNS  Cairns-ORD Chicago O'Hare Intl
39h 33m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,679Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Qantas Airways Logo
5:00 pm - 12:55 pmSTL  Lambert-St Louis-CNS Cairns
28h 55m2 stops Dallas/Fort Worth Sydney Kingsford Smith
Qantas Airways Logo
6:50 am - 6:04 pmCNS  Cairns-STL Lambert-St Louis
26h 14m2 stops Sydney Kingsford Smith Dallas/Fort Worth
$1,693Qantas Airways
Sat, Sep 26 - Sat, Oct 3
Multiple Airlines Logo
7:45 pm - 5:10 pmORD  Chicago O'Hare Intl-CNS Cairns
30h 25m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
6:00 am - 2:43 pmCNS  Cairns-ORD Chicago O'Hare Intl
23h 43m2 stops Brisbane Vancouver Intl
$1,701Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
11:05 am - 2:55 pmORD  Chicago O'Hare Intl-CNS Cairns
35h 50m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 2:37 pmCNS  Cairns-ORD Chicago O'Hare Intl
24h 37m2 stops Brisbane Vancouver Intl
$1,704Multiple Airlines
Mon, Nov 9 - Tue, Dec 1

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Qatar Airways flights from Illinois to Cairns

Our best Qatar Airways deals on Illinois to Cairns flight tickets
Qatar Airways
Nov 9
ORD6:50 pmChicago O'Hare Intl
56h 15m
2 stops
CNS7:05 pmCairns
Dec 1
CNS5:25 pmCairns
37h 05m
2 stops
ORD2:30 pmChicago O'Hare Intl
$1,653
Qatar Airways
Nov 9
ORD6:50 pmChicago O'Hare Intl
56h 15m
2 stops
CNS7:05 pmCairns
Dec 1
CNS5:25 pmCairns
37h 05m
2 stops
ORD2:30 pmChicago O'Hare Intl
$1,657
Qatar Airways
Nov 9
ORD6:50 pmChicago O'Hare Intl
36h 15m
2 stops
CNS11:05 pmCairns
Dec 1
CNS5:25 pmCairns
37h 05m
2 stops
ORD2:30 pmChicago O'Hare Intl
$1,669

Air Canada flights from Illinois to Cairns

Our best Air Canada deals on Illinois to Cairns flight tickets
Air Canada
Oct 21
STL8:55 amLambert-St Louis
39h 00m
3 stops
CNS2:55 pmCairns
Oct 25
CNS5:35 pmCairns
60h 51m
3 stops
STL3:26 pmLambert-St Louis
$1,705
Air Canada
Sep 24
ORD7:09 amChicago O'Hare Intl
41h 46m
3 stops
CNS3:55 pmCairns
Oct 1
CNS6:00 amCairns
25h 58m
3 stops
ORD4:58 pmChicago O'Hare Intl
$3,473
Air Canada
Sep 25
ORD12:59 pmChicago O'Hare Intl
35h 56m
3 stops
CNS3:55 pmCairns
Oct 2
CNS7:15 pmCairns
39h 33m
3 stops
ORD7:48 pmChicago O'Hare Intl
$3,481

momondo Fare Finder

 
Customize 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, momondo users made 832,500 searches. Data last updated August 14, 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 round-trip

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Sat 9/12

7:48 pm-4:55 pm

2 stops30h 07m

Cairns

Fri 9/18

7:15 pm-2:43 pm

2 stops34h 28m

$1,494

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Sat 9/26

6:30 am-4:40 pm

3 stops43h 10m

Cairns

Sat 10/3

6:50 am-5:38 am

3 stops37h 48m

$1,634

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Mon 11/9

6:50 pm-7:05 pm

2 stops56h 15m

Cairns

Tue 12/1

5:25 pm-2:30 pm

2 stops37h 05m

$1,653

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Mon 11/9

6:50 pm-7:05 pm

2 stops56h 15m

Cairns

Tue 12/1

5:25 pm-2:30 pm

2 stops37h 05m

$1,657
Quickest round-trip

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Thu 9/10

9:55 am-4:30 am

2 stops27h 35m

Cairns

Thu 9/17

6:00 am-2:43 pm

2 stops23h 43m

$1,666

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Mon 11/9

6:50 pm-11:05 pm

2 stops36h 15m

Cairns

Tue 12/1

5:25 pm-2:30 pm

2 stops37h 05m

$1,669

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Thu 9/10

9:55 am-4:30 am

2 stops27h 35m

Cairns

Thu 9/17

7:15 pm-7:48 pm

3 stops39h 33m

$1,679

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 9/26

5:00 pm-12:55 pm

2 stops28h 55m

Cairns

Sat 10/3

6:50 am-6:04 pm

2 stops26h 14m

$1,693

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Mon 9/28

7:45 pm-5:10 pm

2 stops30h 25m

Cairns

Mon 10/5

6:00 am-2:43 pm

2 stops23h 43m

$1,701

ChicagoCairns

ORD Chicago O'Hare Intl - CNS Cairns

ORDCNS

Chicago O'Hare Intl

Mon 11/9

11:05 am-2:55 pm

3 stops35h 50m

Cairns

Tue 12/1

6:00 am-2:37 pm

2 stops24h 37m

$1,704

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Illinois to Cairns

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Cairns?

Qantas Airways and American Airlines are the most popular carriers operating from Illinois to Cairns

Cheap Illinois to Cairns flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Cairns

Fastest flight time

26h 50m

Direct flights

None
The fastest flight from Illinois to Cairns takes 26h 50m
There are no direct flights from Illinois to Cairns. There are no popular flight routes from Illinois to Cairns.
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Frequently asked questions about flying from Illinois to Cairns

  • When did momondo last update prices for flights from Illinois to Cairns Airport?

    Prices for flights from Illinois to Cairns Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Illinois to Cairns Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Cairns Airport.

  • What documentation or ID do you need to fly to Cairns Airport?

    The travel and health documents you'll need for your trip to Cairns Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cairns Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Cairns?

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

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Cairns?

It is quick and easy to find Illinois to Cairns flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cairns that suits you.

Can I find flights from Illinois to Cairns with flexible booking policies on momondo?

Yes. All flights to Cairns from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Illinois to Cairns?

Once you have performed a search for Illinois to Cairns flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Illinois to Cairns right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Illinois to Cairns now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cairns and let you know when they change.

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