How long is the flight from Australia to Missouri?

On average, it takes 22h 13m to fly from Australia to Missouri if you fly out of Sydney (the most popular airport in Australia) and into St. Louis (the most popular airport in Missouri). If you’re flying out of Melbourne and into St. Louis, then the flight time is around 22h 22m.

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

American Airlines, Lufthansa, and United Airlines are the most popular carriers operating from Australia to Missouri

Which airlines fly to Missouri?

United Airlines, Qantas Airways and Air Canada are the top three most popular airlines that fly to Missouri from Australia according to our data. United Airlines is the first choice among our users, with 64% of people opting to fly with this airline when travelling to Missouri. Keep in mind that there are 4 different airlines that fly to Missouri on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Australia to Missouri are updated daily.

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

As of April 2026, there are 4 operators available to choose from for flights from Australia to Missouri.

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

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 Australia to Missouri.

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

The required travel and health documents for your Missouri trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$977 Cheap Flights from Australia to Missouri in 2026

1 adult

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Find the cheapest flights from Australia to Missouri

Round-trip

One-way

Last minute

Recent return flight deals from Australia to Missouri

Enter your travel dates to find the best prices.

09:20 - 12:06

SYD

STL

41h 46m

2 stops

16:48 - 07:20

STL

SYD

23h 32m

2 stops

$1,434Multiple Airlines

Wed, 20 May - Thu, 28 May

09:20 - 12:06

SYD

STL

41h 46m

2 stops

16:48 - 07:20

STL

SYD

23h 32m

2 stops

$1,437Multiple Airlines

Wed, 20 May - Thu, 28 May

09:20 - 23:57

SYD

STL

53h 37m

2 stops

08:40 - 07:20

STL

SYD

31h 40m

2 stops

$1,497Air Canada

Wed, 10 Jun - Wed, 17 Jun

09:20 - 23:57

SYD

STL

29h 37m

2 stops

08:40 - 07:20

STL

SYD

55h 40m

2 stops

$1,501Air Canada

Wed, 10 Jun - Wed, 17 Jun

09:45 - 23:56

MEL

STL

29h 11m

1 stop

06:35 - 06:45

STL

MEL

33h 10m

1 stop

$1,549Qantas Airways

Wed, 27 May - Wed, 3 Jun

09:45 - 23:56

MEL

STL

29h 11m

1 stop

14:37 - 06:45

STL

MEL

25h 08m

2 stops

$1,556American Airlines

Thu, 28 May - Thu, 4 Jun

09:45 - 23:59

MEL

STL

29h 14m

1 stop

06:35 - 06:45

STL

MEL

33h 10m

1 stop

$1,557American Airlines

Thu, 14 May - Sat, 23 May

10:55 - 22:15

MEL

MCI

26h 20m

1 stop

16:26 - 07:30

MCI

MEL

24h 04m

1 stop

$1,573United Airlines

Wed, 27 May - Wed, 3 Jun

10:55 - 20:43

MEL

STL

24h 48m

2 stops

13:38 - 08:15

STL

MEL

27h 37m

2 stops

$1,573United Airlines

Thu, 14 May - Tue, 26 May

09:45 - 23:56

MEL

STL

29h 11m

1 stop

19:24 - 05:00

STL

MEL

42h 36m

1 stop

$1,584Qantas Airways

Sun, 14 Jun - Sun, 21 Jun

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Air Canada flights from Australia to Missouri

Our best Air Canada deals on Australia to Missouri flight tickets

Air Canada

10 June

SYD09:20Sydney Kingsford Smith

53h 37m

2 stops

STL23:57Lambert-St Louis

17 June

STL08:40Lambert-St Louis

31h 40m

2 stops

SYD07:20Sydney Kingsford Smith

$1,497

Air Canada

10 June

SYD09:20Sydney Kingsford Smith

29h 37m

2 stops

STL23:57Lambert-St Louis

17 June

STL08:40Lambert-St Louis

55h 40m

2 stops

SYD07:20Sydney Kingsford Smith

$1,501

Air Canada

10 Aug

SYD09:20Sydney Kingsford Smith

50h 19m

2 stops

STL20:39Lambert-St Louis

3 Sept

STL05:10Lambert-St Louis

35h 10m

2 stops

SYD07:20Sydney Kingsford Smith

$1,522

American Airlines flights from Australia to Missouri

Our best American Airlines deals on Australia to Missouri flight tickets

American Airlines

28 May

MEL09:45Melbourne

29h 11m

1 stop

STL23:56Lambert-St Louis

4 June

STL14:37Lambert-St Louis

25h 08m

2 stops

MEL06:45Melbourne

$1,556

American Airlines

14 May

MEL09:45Melbourne

29h 14m

1 stop

STL23:59Lambert-St Louis

23 May

STL06:35Lambert-St Louis

33h 10m

1 stop

MEL06:45Melbourne

$1,557

American Airlines

12 May

MEL09:45Melbourne

29h 17m

2 stops

STL00:02Lambert-St Louis

24 May

STL13:19Lambert-St Louis

26h 26m

2 stops

MEL06:45Melbourne

$1,563

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 20/5

09:20-12:06

2 stops41h 46m

Lambert-St Louis

Thu 28/5

16:48-07:20

2 stops23h 32m

$1,434

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 20/5

09:20-12:06

2 stops41h 46m

Lambert-St Louis

Thu 28/5

16:48-07:20

2 stops23h 32m

$1,437

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 10/6

09:20-23:57

2 stops53h 37m

Lambert-St Louis

Wed 17/6

08:40-07:20

2 stops31h 40m

$1,497

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 10/6

09:20-23:57

2 stops29h 37m

Lambert-St Louis

Wed 17/6

08:40-07:20

2 stops55h 40m

$1,501

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Wed 27/5

09:45-23:56

1 stop29h 11m

Lambert-St Louis

Wed 3/6

06:35-06:45

1 stop33h 10m

$1,549

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 28/5

09:45-23:56

1 stop29h 11m

Lambert-St Louis

Thu 4/6

14:37-06:45

2 stops25h 08m

$1,556

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 14/5

09:45-23:59

1 stop29h 14m

Lambert-St Louis

Sat 23/5

06:35-06:45

1 stop33h 10m

$1,557

Fastest return journey

MelbourneKansas City

MEL - MCI

MELMCI

Melbourne

Wed 27/5

10:55-22:15

1 stop26h 20m

Kansas City

Wed 3/6

16:26-07:30

1 stop24h 04m

$1,573

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 14/5

10:55-20:43

2 stops24h 48m

Lambert-St Louis

Tue 26/5

13:38-08:15

2 stops27h 37m

$1,573

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Sun 14/6

09:45-23:56

1 stop29h 11m

Lambert-St Louis

Sun 21/6

19:24-05:00

1 stop42h 36m

$1,584

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 Australia to Missouri

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 Missouri?

In general, May is the cheapest month to fly from Australia to Missouri. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $746. The month of July is another great option to travel to Missouri, with average flight prices from Australia averaging around $753.

Can stopping save me money on Australia to Missouri flights?

You could potentially save up to 1% on your flight if you consider stops on a Australia to Missouri flight.

Cheap Australia to Missouri flight deals and tips

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

Fastest flight time	20h 00m
Direct flights	None

The fastest flight from Australia to Missouri takes 20h 00m

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

Search flight deals

Frequently asked questions about flying from Australia to Missouri

When did momondo last update prices for flights from Australia to Missouri?
Prices for flights from Australia to Missouri are updated daily.
How many operators does momondo search for flights from Australia to Missouri?
As of April 2026, there are 4 operators available to choose from for flights from Australia to Missouri.
How old do you have to be to fly from Australia to Missouri?
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 Australia to Missouri.
What documentation or ID do you need to fly to Missouri?
The required travel and health documents for your Missouri trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Missouri. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Australia to Missouri

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

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $745	Free cancellation	Rating 7.4 9,677 reviews	Search United Airlines flights
Air Canada	PriceFrom $1,024	Free cancellation	Rating 7.1 10,982 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,090	Free cancellation	Rating 7.5 1,028 reviews	Search Qantas Airways flights
American Airlines	PriceFrom $1,613	Free cancellation	Rating 7.1 11,681 reviews	Search American Airlines flights

Why use momondo?

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

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 Australia to Missouri for you.

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

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

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

momondo helps you find the best flight between Australia and Missouri 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 Australia to Missouri right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Australia to Missouri flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.