What is the cheapest airline that flies from Missouri to Australia?

Air Canada, Delta, and Qantas Airways are the most popular carriers operating from Missouri to Australia

How long is the flight from Missouri to Australia?

The flight from Missouri to Australia depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Kansas City (a popular airport in Missouri) to Sydney (the most popular airport in Australia), then the flight time is 21h 27m on average. If you fly from St. Louis (another popular airport in Missouri) to Sydney, then the average flight time is 27h 30m.

When did momondo last update prices for flights from Missouri to Australia?

Prices for flights from Missouri to Australia were last updated today.

How many operators does momondo search for flights from Missouri to Australia?

As of December 2025, there is 1 operator available to choose from for flights from Missouri to Australia.

How old do you have to be to fly from Missouri to Australia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Australia.

What documentation or ID do you need to fly to Australia?

The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$778 Cheap Flights from Missouri to Australia in 2025/26

1 adult

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Find the cheapest flights from Missouri to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:04 - 09:00

STL

SYD

32h 56m1 stop

07:05 - 23:59

SYD

STL

33h 54m2 stops

$1,374Qantas Airways

Tue, 10 Feb - Tue, 17 Feb

07:04 - 09:30

STL

MEL

33h 26m1 stop

06:45 - 23:59

MEL

STL

34h 14m2 stops

$1,396Qantas Airways

Mon, 9 Feb - Tue, 3 Mar

16:30 - 08:45

STL

BNE

24h 15m2 stops

10:45 - 20:26

BNE

STL

25h 41m2 stops

$1,429Multiple Airlines

Sat, 14 Feb - Sat, 21 Feb

13:42 - 08:45

MCI

BNE

27h 03m2 stops

10:45 - 16:08

BNE

MCI

21h 23m2 stops

$1,442Multiple Airlines

Sun, 1 Feb - Sat, 7 Feb

13:42 - 09:30

MCI

MEL

26h 48m2 stops

13:00 - 18:37

MEL

MCI

22h 37m1 stop

$1,492United Airlines

Sat, 7 Feb - Sat, 14 Feb

13:50 - 09:30

MCI

MEL

26h 40m2 stops

13:00 - 22:40

MEL

MCI

26h 40m2 stops

$1,499United Airlines

Fri, 13 Feb - Fri, 20 Feb

20:11 - 07:00

MCI

MEL

42h 49m2 stops

09:10 - 14:54

MEL

MCI

21h 44m1 stop

$1,510Delta

Thu, 12 Mar - Sun, 22 Mar

17:10 - 08:45

MCI

BNE

47h 35m2 stops

10:45 - 16:08

BNE

MCI

21h 23m2 stops

$1,516Air Canada

Wed, 28 Jan - Wed, 4 Feb

16:30 - 08:45

STL

BNE

24h 15m2 stops

10:45 - 15:29

BNE

STL

44h 44m2 stops

$1,555Air Canada

Sat, 21 Feb - Tue, 24 Feb

17:59 - 07:00

STL

MEL

45h 01m2 stops

09:10 - 17:05

MEL

STL

23h 55m2 stops

$1,749Delta

Sun, 8 Mar - Wed, 18 Mar

Qantas Airways flights from Missouri to Australia

Our best Qantas Airways deals on Missouri to Australia flight tickets

Qantas Airways

10 Feb

STL07:04Lambert-St Louis

32h 56m

1 stop

SYD09:00Sydney Kingsford Smith

17 Feb

SYD07:05Sydney Kingsford Smith

33h 54m

2 stops

STL23:59Lambert-St Louis

$1,374

Find similar

Qantas Airways

9 Feb

STL07:04Lambert-St Louis

33h 26m

1 stop

MEL09:30Melbourne

3 Mar

MEL06:45Melbourne

34h 14m

2 stops

STL23:59Lambert-St Louis

$1,396

Find similar

Qantas Airways

12 Feb

STL06:38Lambert-St Louis

30h 22m

1 stop

BNE05:00Brisbane

19 Feb

BNE18:30Brisbane

36h 58m

2 stops

STL15:28Lambert-St Louis

$1,401

Find similar

United Airlines flights from Missouri to Australia

Our best United Airlines deals on Missouri to Australia flight tickets

United Airlines

7 Feb

MCI13:42Kansas City

26h 48m

2 stops

MEL09:30Melbourne

14 Feb

MEL13:00Melbourne

22h 37m

1 stop

MCI18:37Kansas City

$1,492

Find similar

United Airlines

13 Feb

MCI13:50Kansas City

26h 40m

2 stops

MEL09:30Melbourne

20 Feb

MEL13:00Melbourne

26h 40m

2 stops

MCI22:40Kansas City

$1,499

Find similar

United Airlines

12 Feb

STL17:25Lambert-St Louis

22h 05m

1 stop

BNE07:30Brisbane

19 Feb

BNE11:40Brisbane

21h 04m

1 stop

STL16:44Lambert-St Louis

$1,556

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 10/2

07:04-09:00

1 stop32h 56m

Sydney Kingsford Smith

Tue 17/2

07:05-23:59

2 stops33h 54m

$1,374

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 9/2

07:04-09:30

1 stop33h 26m

Melbourne

Tue 3/3

06:45-23:59

2 stops34h 14m

$1,396

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 14/2

16:30-08:45

2 stops24h 15m

Brisbane

Sat 21/2

10:45-20:26

2 stops25h 41m

$1,429

Kansas CityBrisbane

MCI - BNE

MCIBNE

Kansas City

Sun 1/2

13:42-08:45

2 stops27h 03m

Brisbane

Sat 7/2

10:45-16:08

2 stops21h 23m

$1,442

Kansas CityMelbourne

MCI - MEL

MCIMEL

Kansas City

Sat 7/2

13:42-09:30

2 stops26h 48m

Melbourne

Sat 14/2

13:00-18:37

1 stop22h 37m

$1,492

Kansas CityMelbourne

MCI - MEL

MCIMEL

Kansas City

Fri 13/2

13:50-09:30

2 stops26h 40m

Melbourne

Fri 20/2

13:00-22:40

2 stops26h 40m

$1,499

Kansas CityMelbourne

MCI - MEL

MCIMEL

Kansas City

Thu 12/3

20:11-07:00

2 stops42h 49m

Melbourne

Sun 22/3

09:10-14:54

1 stop21h 44m

$1,510

Kansas CityBrisbane

MCI - BNE

MCIBNE

Kansas City

Wed 28/1

17:10-08:45

2 stops47h 35m

Brisbane

Wed 4/2

10:45-16:08

2 stops21h 23m

$1,516

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 21/2

16:30-08:45

2 stops24h 15m

Brisbane

Tue 24/2

10:45-15:29

2 stops44h 44m

$1,555

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 8/3

17:59-07:00

2 stops45h 01m

Melbourne

Wed 18/3

09:10-17:05

2 stops23h 55m

$1,749

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Missouri to Australia

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

Prices

Airlines

Other information

What is the cheapest month to fly to Australia?

In general, March is the cheapest month to fly from Missouri to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,917. If you don’t want to visit Australia in March, then you should wait until September to fly from Missouri, when ticket prices are also cheap, with an average price of $1,924.

How far in advance should I book a flight to Australia?

You are more likely to see cheaper flights to Australia from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $2,150 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Missouri for as low as $1,835 on momondo.

Can stopping save me money on Missouri to Australia flights?

You could potentially save up to 5% on your flight if you consider stops on a Missouri to Australia flight.

Cheap Missouri to Australia flight deals and tips

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

Fastest flight time	21h 27m
Direct flights	None

The fastest flight from Missouri to Australia takes 21h 27m

There are no direct flights from Missouri to Australia. There are no popular flight routes from Missouri to Australia.

Search flight deals

When did momondo last update prices for flights from Missouri to Australia?
Prices for flights from Missouri to Australia were last updated today.
How many operators does momondo search for flights from Missouri to Australia?
As of December 2025, there is 1 operator available to choose from for flights from Missouri to Australia.
How old do you have to be to fly from Missouri to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Missouri to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Missouri to Australia

Compare and see reviews for airlines that fly from Missouri to Australia with momondo

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $2,117	Free cancellation	Rating 7.4 9,129 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Australia?

It is quick and easy to find Missouri to Australia 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 Australia that suits you.

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

All flight searches from Missouri to Australia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Missouri to Australia.

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

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