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Cheap flights from Illinois to Cairns from $521

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 5/30. 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

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Find the cheapest flights from Illinois to Cairns

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:15 pm - 3:55 pm
ORD
-
CNS
51h 40m
2 stops
Multiple Airlines Logo
7:10 pm - 2:45 pm
CNS
-
ORD
34h 35m
2 stops
$1,450Multiple Airlines
Sat, May 23 - Sun, May 31
Multiple Airlines Logo
8:20 pm - 3:55 pm
ORD
-
CNS
52h 35m
3 stops
Multiple Airlines Logo
7:10 pm - 2:45 pm
CNS
-
ORD
34h 35m
2 stops
$1,453Multiple Airlines
Sat, May 23 - Sun, May 31
Multiple Airlines Logo
6:21 am - 11:15 am
STL
-
CNS
37h 54m
2 stops
Multiple Airlines Logo
9:10 pm - 11:59 pm
CNS
-
STL
41h 49m
2 stops
$1,472Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
8:20 pm - 3:55 pm
ORD
-
CNS
52h 35m
2 stops
Multiple Airlines Logo
6:00 am - 2:45 pm
CNS
-
ORD
23h 45m
2 stops
$1,486Multiple Airlines
Sat, May 23 - Fri, May 29
Air Canada Logo
8:20 pm - 3:55 pm
ORD
-
CNS
52h 35m
3 stops
Air Canada Logo
6:00 am - 2:45 pm
CNS
-
ORD
23h 45m
2 stops
$1,490Air Canada
Sat, May 23 - Fri, May 29
Multiple Airlines Logo
7:09 am - 1:40 pm
ORD
-
CNS
39h 31m
3 stops
Multiple Airlines Logo
7:10 pm - 2:45 pm
CNS
-
ORD
34h 35m
2 stops
$1,492Multiple Airlines
Mon, May 25 - Sun, May 31
Multiple Airlines Logo
4:03 pm - 11:40 am
ORD
-
CNS
28h 37m
2 stops
Multiple Airlines Logo
9:10 pm - 10:04 pm
CNS
-
ORD
39h 54m
2 stops
$1,493Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
3:40 pm - 11:10 am
ORD
-
CNS
28h 30m
2 stops
Multiple Airlines Logo
3:45 pm - 2:45 pm
CNS
-
ORD
38h 00m
2 stops
$1,501Multiple Airlines
Sat, May 23 - Sat, May 30
Multiple Airlines Logo
7:48 pm - 4:55 pm
ORD
-
CNS
30h 07m
2 stops
Multiple Airlines Logo
4:35 pm - 2:41 pm
CNS
-
ORD
37h 06m
2 stops
$1,502Multiple Airlines
Sat, Aug 29 - Wed, Sep 2
Qantas Airways Logo
6:21 am - 10:35 am
STL
-
CNS
37h 14m
2 stops
Qantas Airways Logo
1:40 pm - 11:57 pm
CNS
-
STL
49h 17m
2 stops
$1,647Qantas Airways
Sat, Apr 18 - Sat, Apr 25

Air Canada flights from Illinois to Cairns

Our best Air Canada deals on Illinois to Cairns flight tickets
Air Canada
May 23
ORD8:20 pmChicago O'Hare Intl
52h 35m
3 stops
CNS3:55 pmCairns
May 29
CNS6:00 amCairns
23h 45m
2 stops
ORD2:45 pmChicago O'Hare Intl
$1,490
Air Canada
May 5
ORD1:01 pmChicago O'Hare Intl
35h 54m
3 stops
CNS3:55 pmCairns
May 12
CNS6:00 amCairns
23h 45m
2 stops
ORD2:45 pmChicago O'Hare Intl
$1,538
Air Canada
Aug 3
ORD3:40 pmChicago O'Hare Intl
28h 30m
2 stops
CNS11:10 amCairns
Aug 10
CNS7:15 pmCairns
34h 26m
2 stops
ORD2:41 pmChicago O'Hare Intl
$1,571

Qantas Airways flights from Illinois to Cairns

Our best Qantas Airways deals on Illinois to Cairns flight tickets
Qantas Airways
Apr 18
STL6:21 amLambert-St Louis
37h 14m
2 stops
CNS10:35 amCairns
Apr 25
CNS1:40 pmCairns
49h 17m
2 stops
STL11:57 pmLambert-St Louis
$1,647
Qantas Airways
Apr 25
STL3:38 pmLambert-St Louis
29h 12m
2 stops
CNS11:50 amCairns
Apr 29
CNS1:40 pmCairns
42h 41m
2 stops
STL5:21 pmLambert-St Louis
$2,085
Qantas Airways
Apr 25
STL6:11 pmLambert-St Louis
27h 44m
2 stops
CNS12:55 pmCairns
Apr 29
CNS1:40 pmCairns
42h 41m
2 stops
STL5:21 pmLambert-St Louis
$2,248

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 March 23, 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 - CNS

ORDCNS

Chicago O'Hare Intl

Sat 5/23

9:15 pm-3:55 pm

2 stops51h 40m

Cairns

Sun 5/31

7:10 pm-2:45 pm

2 stops34h 35m

$1,450

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 5/23

8:20 pm-3:55 pm

3 stops52h 35m

Cairns

Sun 5/31

7:10 pm-2:45 pm

2 stops34h 35m

$1,453

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Tue 5/5

6:21 am-11:15 am

2 stops37h 54m

Cairns

Tue 5/12

9:10 pm-11:59 pm

2 stops41h 49m

$1,472

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 5/23

8:20 pm-3:55 pm

2 stops52h 35m

Cairns

Fri 5/29

6:00 am-2:45 pm

2 stops23h 45m

$1,486

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 5/23

8:20 pm-3:55 pm

3 stops52h 35m

Cairns

Fri 5/29

6:00 am-2:45 pm

2 stops23h 45m

$1,490

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 5/25

7:09 am-1:40 pm

3 stops39h 31m

Cairns

Sun 5/31

7:10 pm-2:45 pm

2 stops34h 35m

$1,492

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Tue 5/5

4:03 pm-11:40 am

2 stops28h 37m

Cairns

Tue 5/12

9:10 pm-10:04 pm

2 stops39h 54m

$1,493
Quickest round-trip

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 5/23

3:40 pm-11:10 am

2 stops28h 30m

Cairns

Sat 5/30

3:45 pm-2:45 pm

2 stops38h 00m

$1,501

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 8/29

7:48 pm-4:55 pm

2 stops30h 07m

Cairns

Wed 9/2

4:35 pm-2:41 pm

2 stops37h 06m

$1,502

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sat 4/18

6:21 am-10:35 am

2 stops37h 14m

Cairns

Sat 4/25

1:40 pm-11:57 pm

2 stops49h 17m

$1,647

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

28h 15m

Direct flights

None
The fastest flight from Illinois to Cairns takes 28h 15m
There are no direct flights from Illinois to Cairns. There are no popular flight routes from Illinois to Cairns.
Search flight deals

  • 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 many operators does momondo search for flights from Illinois to Cairns Airport?

  • 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.

  • How do I get Price Alerts for flights from Illinois to Cairns?

    Price Alerts will notify you by email when the price for flights to Cairns from Illinois decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Illinois to Cairns with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Cairns?

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