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Cheap flights from Missouri to Cairns from $1,693

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Cairns departing on 9/26. 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 Missouri to Cairns

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
Air Canada Logo
8:55 am - 2:55 pmSTL  Lambert-St Louis-CNS Cairns
39h 00m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
5:35 pm - 3:26 pmCNS  Cairns-STL Lambert-St Louis
60h 51m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,705Air Canada
Wed, Oct 21 - Sun, Oct 25
Qantas Airways Logo
6:00 am - 12:55 pmSTL  Lambert-St Louis-CNS Cairns
39h 55m2 stops Los Angeles Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
6:50 am - 6:05 pmCNS  Cairns-STL Lambert-St Louis
26h 15m2 stops Sydney Kingsford Smith Dallas/Fort Worth
$1,925Qantas Airways
Tue, Aug 25 - Fri, Aug 28
Multiple Airlines Logo
12:10 pm - 4:30 amSTL  Lambert-St Louis-CNS Cairns
49h 20m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita
Multiple Airlines Logo
7:10 pm - 2:00 pmCNS  Cairns-STL Lambert-St Louis
57h 50m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,942Multiple Airlines
Sat, Sep 26 - Sat, Oct 3
Multiple Airlines Logo
12:10 pm - 4:30 amSTL  Lambert-St Louis-CNS Cairns
49h 20m2 stops Montreal Pierre Elliott Trudeau Intl Tokyo Narita
Multiple Airlines Logo
7:10 pm - 2:02 pmCNS  Cairns-STL Lambert-St Louis
57h 52m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$2,170Multiple Airlines
Tue, Aug 25 - Fri, Aug 28
Multiple Airlines Logo
1:25 pm - 8:15 pmSTL  Lambert-St Louis-CNS Cairns
39h 50m3 stops Philadelphia Los Angeles Los Angeles Sydney Kingsford Smith
Multiple Airlines Logo
10:15 am - 10:18 amCNS  Cairns-STL Lambert-St Louis
39h 03m3 stops Sydney Kingsford Smith Los Angeles Los Angeles Chicago O'Hare Intl
$2,249Multiple Airlines
Sat, Sep 26 - Sat, Oct 3
Qantas Airways Logo
6:04 am - 4:55 pmSTL  Lambert-St Louis-CNS Cairns
43h 51m2 stops Los Angeles Los Angeles Brisbane
Qantas Airways Logo
11:15 am - 11:46 pmCNS  Cairns-STL Lambert-St Louis
51h 31m2 stops Brisbane Los Angeles Los Angeles
$2,358Qantas Airways
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
7:08 am - 11:10 amSTL  Lambert-St Louis-CNS Cairns
37h 02m2 stops San Francisco Brisbane
United Airlines Logo
6:00 am - 10:15 pmCNS  Cairns-STL Lambert-St Louis
31h 15m2 stops Brisbane San Francisco
$2,464United Airlines
Wed, Oct 21 - Sun, Oct 25
Multiple Airlines Logo
10:16 am - 2:40 pmSTL  Lambert-St Louis-CNS Cairns
37h 24m3 stops Dallas/Fort Worth Los Angeles Los Angeles Melbourne
Multiple Airlines Logo
2:50 pm - 5:37 pmCNS  Cairns-STL Lambert-St Louis
41h 47m3 stops Melbourne Los Angeles Los Angeles Phoenix Sky Harbor Intl
$2,644Multiple Airlines
Tue, Aug 25 - Fri, Aug 28

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Qantas Airways flights from Missouri to Cairns

Our best Qantas Airways deals on Missouri to Cairns flight tickets
Qantas Airways
Sep 26
STL5:00 pmLambert-St Louis
28h 55m
2 stops
CNS12:55 pmCairns
Oct 3
CNS6:50 amCairns
26h 14m
2 stops
STL6:04 pmLambert-St Louis
$1,693
Qantas Airways
Aug 25
STL6:00 amLambert-St Louis
39h 55m
2 stops
CNS12:55 pmCairns
Aug 28
CNS6:50 amCairns
26h 15m
2 stops
STL6:05 pmLambert-St Louis
$1,925
Qantas Airways
Oct 21
STL6:04 amLambert-St Louis
43h 51m
2 stops
CNS4:55 pmCairns
Oct 25
CNS11:15 amCairns
51h 31m
2 stops
STL11:46 pmLambert-St Louis
$2,358

momondo Fare Finder

 
Customize your flight search to find flights from Missouri 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 15, 2026.
Use the filters below to find and compare flights from Missouri to Cairns that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

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

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Wed 10/21

8:55 am-2:55 pm

3 stops39h 00m

Cairns

Sun 10/25

5:35 pm-3:26 pm

3 stops60h 51m

$1,705

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Tue 8/25

6:00 am-12:55 pm

2 stops39h 55m

Cairns

Fri 8/28

6:50 am-6:05 pm

2 stops26h 15m

$1,925

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 9/26

12:10 pm-4:30 am

2 stops49h 20m

Cairns

Sat 10/3

7:10 pm-2:00 pm

3 stops57h 50m

$1,942

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Tue 8/25

12:10 pm-4:30 am

2 stops49h 20m

Cairns

Fri 8/28

7:10 pm-2:02 pm

3 stops57h 52m

$2,170

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Sat 9/26

1:25 pm-8:15 pm

3 stops39h 50m

Cairns

Sat 10/3

10:15 am-10:18 am

3 stops39h 03m

$2,249

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Wed 10/21

6:04 am-4:55 pm

2 stops43h 51m

Cairns

Sun 10/25

11:15 am-11:46 pm

2 stops51h 31m

$2,358

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Wed 10/21

7:08 am-11:10 am

2 stops37h 02m

Cairns

Sun 10/25

6:00 am-10:15 pm

2 stops31h 15m

$2,464

St. LouisCairns

STL Lambert-St Louis - CNS Cairns

STLCNS

Lambert-St Louis

Tue 8/25

10:16 am-2:40 pm

3 stops37h 24m

Cairns

Fri 8/28

2:50 pm-5:37 pm

3 stops41h 47m

$2,644

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Missouri to Cairns flight deals and tips

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

Fastest flight time

35h 39m

Direct flights

None
The fastest flight from Missouri to Cairns takes 35h 39m
There are no direct flights from Missouri to Cairns. There are no popular flight routes from Missouri to Cairns.
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Frequently asked questions about flying from Missouri to Cairns

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Missouri 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 Missouri to Cairns

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

    Price Alerts will notify you by email when the price for flights to Cairns from Missouri 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 Missouri to Cairns with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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 Missouri to Cairns?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to Cairns for you.

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

momondo does allow users to show only those flights to Cairns from Missouri which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Missouri and Cairns by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Cairns, momondo offers a useful price alert feature which will track prices for flights to Cairns from Missouri and alert you when they change.

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