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 19h 59m on average. If you fly from St. Louis (another popular airport in Missouri) to Sydney, then the average flight time is 23h 28m.

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

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

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 September 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.

$844 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

15:59 - 15:35STL-MEL

30h 36m2 stops

12:00 - 23:42MEL-STL

28h 42m1 stop

$1,435Qantas Airways

Find Deal

Wed, 5 Nov - Wed, 26 Nov

06:00 - 09:30STL-MEL

34h 30m1 stop

06:45 - 23:08MEL-STL

33h 23m2 stops

$1,447Qantas Airways

Find Deal

Wed, 4 Feb - Thu, 26 Feb

05:15 - 08:55STL-BNE

35h 40m2 stops

18:05 - 18:47BNE-STL

40h 42m2 stops

$1,471Air New Zealand

Find Deal

Sun, 2 Nov - Sat, 8 Nov

09:00 - 07:30SGF-BNE

30h 30m2 stops

11:40 - 21:46BNE-SGF

26h 06m2 stops

$1,490United Airlines

Find Deal

Tue, 18 Nov - Wed, 26 Nov

11:22 - 06:30SGF-BNE

28h 08m2 stops

10:40 - 15:53BNE-SGF

44h 13m2 stops

$1,512United Airlines

Find Deal

Thu, 19 Mar - Mon, 23 Mar

16:35 - 15:35STL-MEL

30h 00m2 stops

08:35 - 22:22MEL-STL

30h 47m2 stops

$1,546Air New Zealand

Find Deal

Wed, 5 Nov - Wed, 26 Nov

16:05 - 07:45STL-BNE

48h 40m2 stops

09:45 - 15:29BNE-STL

44h 44m2 stops

$1,602Air Canada

Find Deal

Sun, 8 Mar - Sat, 14 Mar

07:00 - 09:00STL-SYD

33h 00m2 stops

11:20 - 15:29SYD-STL

45h 09m2 stops

$1,608Multiple Airlines

Find Deal

Mon, 3 Nov - Mon, 10 Nov

16:05 - 07:45STL-BNE

48h 40m2 stops

19:35 - 15:29BNE-STL

58h 54m3 stops

$1,638Multiple Airlines

Find Deal

Sun, 8 Mar - Sat, 14 Mar

14:45 - 08:45STL-BNE

26h 00m2 stops

10:45 - 15:29BNE-STL

44h 44m2 stops

$1,644Air Canada

Find Deal

Sat, 28 Feb - Wed, 4 Mar

Alaska Airlines flights from Missouri to Australia

Our best Alaska Airlines deals on Missouri to Australia flight tickets

Alaska Airlines

4 Nov

STL07:00Lambert-St Louis

43h 45m

2 stops

SYD19:45Sydney Kingsford Smith

2 Dec

SYD21:40Sydney Kingsford Smith

57h 47m

2 stops

STL14:27Lambert-St Louis

$1,806

Find similar

Alaska Airlines

31 Oct

STL07:00Lambert-St Louis

44h 45m

2 stops

SYD19:45Sydney Kingsford Smith

2 Dec

SYD21:40Sydney Kingsford Smith

57h 47m

2 stops

STL14:27Lambert-St Louis

$1,817

Find similar

Alaska Airlines

1 Nov

STL07:00Lambert-St Louis

68h 45m

2 stops

SYD19:45Sydney Kingsford Smith

2 Dec

SYD21:40Sydney Kingsford Smith

57h 47m

2 stops

STL14:27Lambert-St Louis

$1,825

Find similar

Fiji Airways flights from Missouri to Australia

Our best Fiji Airways deals on Missouri to Australia flight tickets

Fiji Airways

14 Feb

STL17:49Lambert-St Louis

25h 41m

2 stops

SYD12:30Sydney Kingsford Smith

28 Feb

SYD14:10Sydney Kingsford Smith

25h 58m

2 stops

STL23:08Lambert-St Louis

$1,776

Find similar

Fiji Airways

3 Feb

STL17:54Lambert-St Louis

25h 51m

2 stops

MEL12:45Melbourne

26 Feb

MEL14:30Melbourne

24h 54m

2 stops

STL22:24Lambert-St Louis

$1,793

Find similar

Fiji Airways

4 Nov

STL17:58Lambert-St Louis

25h 32m

2 stops

SYD12:30Sydney Kingsford Smith

11 Nov

SYD14:10Sydney Kingsford Smith

22h 20m

2 stops

STL19:30Lambert-St Louis

$1,811

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 5/11

15:59-15:35

2 stops30h 36m

Melbourne

Wed 26/11

12:00-23:42

1 stop28h 42m

$1,435

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 4/2

06:00-09:30

1 stop34h 30m

Melbourne

Thu 26/2

06:45-23:08

2 stops33h 23m

$1,447

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sun 2/11

05:15-08:55

2 stops35h 40m

Brisbane

Sat 8/11

18:05-18:47

2 stops40h 42m

$1,471

SpringfieldBrisbane

SGF - BNE

SGFBNE

Springfield-Branson

Tue 18/11

09:00-07:30

2 stops30h 30m

Brisbane

Wed 26/11

11:40-21:46

2 stops26h 06m

$1,490

SpringfieldBrisbane

SGF - BNE

SGFBNE

Springfield-Branson

Thu 19/3

11:22-06:30

2 stops28h 08m

Brisbane

Mon 23/3

10:40-15:53

2 stops44h 13m

$1,512

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 5/11

16:35-15:35

2 stops30h 00m

Melbourne

Wed 26/11

08:35-22:22

2 stops30h 47m

$1,546

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sun 8/3

16:05-07:45

2 stops48h 40m

Brisbane

Sat 14/3

09:45-15:29

2 stops44h 44m

$1,602

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 3/11

07:00-09:00

2 stops33h 00m

Sydney Kingsford Smith

Mon 10/11

11:20-15:29

2 stops45h 09m

$1,608

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sun 8/3

16:05-07:45

2 stops48h 40m

Brisbane

Sat 14/3

19:35-15:29

3 stops58h 54m

$1,638

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 28/2

14:45-08:45

2 stops26h 00m

Brisbane

Wed 4/3

10:45-15:29

2 stops44h 44m

$1,644

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, October 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 $1,876. If you don’t want to visit Australia in October, then you should wait until November to fly from Missouri, when ticket prices are also cheap, with an average price of $1,946.

What is the cheapest time of day to depart on your flight to Australia?

According to our data, the cheapest time of day to fly to Australia is in the afternoon. momondo users have found flights departing from Missouri to Australia in the afternoon for as low as $1,899. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Australia are more costly in the morning, with an average ticket price of $2,673. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 $2,191 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 $1,893 on momondo.

Can stopping save me money on Missouri to Australia flights?

You could potentially save up to 6% 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

Direct flights	None

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 September 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 $1,557	Free cancellation	Rating 7.4 8,923 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.