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Cheap flights from Illinois to Cairns from $1,737

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Cairns departing on 10/14. 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
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
7:20 pm - 5:30 am
ORD
-
CNS
43h 10m
2 stops
Multiple Airlines Logo
7:15 pm - 3:30 pm
CNS
-
ORD
35h 15m
2 stops
$1,737Multiple Airlines
Wed, Oct 14 - Sat, Oct 31
American Airlines Logo
5:10 pm - 10:35 am
ORD
-
CNS
26h 25m
2 stops
American Airlines Logo
3:45 pm - 5:00 am
CNS
-
ORD
28h 15m
2 stops
$1,852American Airlines
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
7:20 pm - 5:30 am
ORD
-
CNS
43h 10m
2 stops
Multiple Airlines Logo
9:45 am - 3:30 pm
CNS
-
ORD
44h 45m
3 stops
$1,919Multiple Airlines
Wed, Oct 14 - Sat, Oct 31
United Airlines Logo
8:55 am - 11:10 am
ORD
-
CNS
35h 15m
2 stops
United Airlines Logo
6:00 am - 10:59 pm
CNS
-
ORD
31h 59m
2 stops
$1,947United Airlines
Wed, Jun 3 - Wed, Jun 10
American Airlines Logo
11:45 am - 10:35 am
ORD
-
CNS
31h 50m
2 stops
American Airlines Logo
3:45 pm - 5:00 am
CNS
-
ORD
28h 15m
2 stops
$2,002American Airlines
Mon, May 25 - Mon, Jun 8
Qatar Airways Logo
7:20 pm - 9:50 am
ORD
-
CNS
47h 30m
2 stops
Qatar Airways Logo
9:00 pm - 3:05 pm
CNS
-
ORD
57h 05m
2 stops
$2,085Qatar Airways
Thu, Sep 10 - Mon, Sep 14
Qatar Airways Logo
7:20 pm - 9:50 am
ORD
-
CNS
47h 30m
2 stops
Qatar Airways Logo
9:00 pm - 3:05 pm
CNS
-
ORD
57h 05m
2 stops
$2,086Qatar Airways
Thu, Sep 10 - Mon, Sep 14
Air New Zealand Logo
4:45 pm - 10:45 am
ORD
-
CNS
27h 00m
2 stops
Air New Zealand Logo
11:55 am - 11:16 pm
CNS
-
ORD
26h 21m
2 stops
$2,098Air New Zealand
Sat, Jun 20 - Sat, Jun 27
Air Canada Logo
2:15 pm - 3:55 pm
ORD
-
CNS
34h 40m
3 stops
Air Canada Logo
6:00 am - 5:40 am
CNS
-
ORD
38h 40m
2 stops
$2,129Air Canada
Mon, May 25 - Mon, Jun 8
United Airlines Logo
4:17 pm - 7:05 pm
STL
-
CNS
35h 48m
3 stops
United Airlines Logo
6:00 am - 5:53 pm
CNS
-
STL
26h 53m
2 stops
$2,445United Airlines
Mon, Oct 26 - Fri, Oct 30

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American Airlines flights from Illinois to Cairns

Our best American Airlines deals on Illinois to Cairns flight tickets
American Airlines
Jun 1
ORD5:10 pmChicago O'Hare Intl
26h 25m
2 stops
CNS10:35 amCairns
Jun 8
CNS3:45 pmCairns
28h 15m
2 stops
ORD5:00 amChicago O'Hare Intl
$1,852
American Airlines
May 25
ORD11:45 amChicago O'Hare Intl
31h 50m
2 stops
CNS10:35 amCairns
Jun 8
CNS3:45 pmCairns
28h 15m
2 stops
ORD5:00 amChicago O'Hare Intl
$2,002
American Airlines
May 25
ORD3:20 pmChicago O'Hare Intl
28h 15m
2 stops
CNS10:35 amCairns
Jun 28
CNS3:45 pmCairns
30h 30m
2 stops
ORD7:15 amChicago O'Hare Intl
$2,152

United Airlines flights from Illinois to Cairns

Our best United Airlines deals on Illinois to Cairns flight tickets
United Airlines
Jun 3
ORD8:55 amChicago O'Hare Intl
35h 15m
2 stops
CNS11:10 amCairns
Jun 10
CNS6:00 amCairns
31h 59m
2 stops
ORD10:59 pmChicago O'Hare Intl
$1,947
United Airlines
Oct 26
STL4:17 pmLambert-St Louis
35h 48m
3 stops
CNS7:05 pmCairns
Oct 30
CNS6:00 amCairns
26h 53m
2 stops
STL5:53 pmLambert-St Louis
$2,445
United Airlines
Oct 26
STL4:17 pmLambert-St Louis
35h 48m
3 stops
CNS7:05 pmCairns
Oct 30
CNS6:00 amCairns
48h 38m
3 stops
STL3:38 pmLambert-St Louis
$2,470

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 May 6, 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

Wed 10/14

7:20 pm-5:30 am

2 stops43h 10m

Cairns

Sat 10/31

7:15 pm-3:30 pm

2 stops35h 15m

$1,737

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 6/1

5:10 pm-10:35 am

2 stops26h 25m

Cairns

Mon 6/8

3:45 pm-5:00 am

2 stops28h 15m

$1,852

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 10/14

7:20 pm-5:30 am

2 stops43h 10m

Cairns

Sat 10/31

9:45 am-3:30 pm

3 stops44h 45m

$1,919

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Wed 6/3

8:55 am-11:10 am

2 stops35h 15m

Cairns

Wed 6/10

6:00 am-10:59 pm

2 stops31h 59m

$1,947

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 5/25

11:45 am-10:35 am

2 stops31h 50m

Cairns

Mon 6/8

3:45 pm-5:00 am

2 stops28h 15m

$2,002

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Thu 9/10

7:20 pm-9:50 am

2 stops47h 30m

Cairns

Mon 9/14

9:00 pm-3:05 pm

2 stops57h 05m

$2,085

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Thu 9/10

7:20 pm-9:50 am

2 stops47h 30m

Cairns

Mon 9/14

9:00 pm-3:05 pm

2 stops57h 05m

$2,086
Quickest round-trip

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 6/20

4:45 pm-10:45 am

2 stops27h 00m

Cairns

Sat 6/27

11:55 am-11:16 pm

2 stops26h 21m

$2,098

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Mon 5/25

2:15 pm-3:55 pm

3 stops34h 40m

Cairns

Mon 6/8

6:00 am-5:40 am

2 stops38h 40m

$2,129

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Mon 10/26

4:17 pm-7:05 pm

3 stops35h 48m

Cairns

Fri 10/30

6:00 am-5:53 pm

2 stops26h 53m

$2,445

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

31h 02m

Direct flights

None
The fastest flight from Illinois to Cairns takes 31h 02m
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 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.

Frequently asked questions about flying from Illinois to Cairns

  • 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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