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

Delta, American Airlines, and Qantas Airways are the most popular carriers operating from Australia to Missouri

How long is the flight from Australia to Missouri?

The flight from Australia to Missouri depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Sydney (a popular airport in Australia) to St. Louis (the most popular airport in Missouri), then the flight time is 22h 13m on average. If you fly from Melbourne (another popular airport in Australia) to St. Louis, then the average flight time is 22h 22m.

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

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

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

There is 1 operator available for flights from Australia to Missouri as of April 2026.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to Missouri 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 license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$696 Cheap Flights from Australia to Missouri in 2026

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Find the cheapest flights from Australia to Missouri

Round-trip

One-way

Recent round-trip flight deals from Australia to Missouri

Enter your travel dates to find the best prices.

9:20 am - 12:06 pm

SYD

STL

41h 46m

2 stops

4:48 pm - 7:20 am

STL

SYD

23h 32m

2 stops

$1,025Multiple Airlines

Wed, May 20 - Thu, May 28

9:20 am - 12:06 pm

SYD

STL

41h 46m

2 stops

4:48 pm - 7:20 am

STL

SYD

23h 32m

2 stops

$1,027Multiple Airlines

Wed, May 20 - Thu, May 28

9:20 am - 12:06 pm

SYD

STL

41h 46m

2 stops

12:10 pm - 7:20 am

STL

SYD

52h 10m

2 stops

$1,069Air Canada

Mon, May 25 - Wed, Aug 5

9:20 am - 8:25 pm

SYD

STL

26h 05m

2 stops

1:05 pm - 7:20 am

STL

SYD

51h 15m

3 stops

$1,070Air Canada

Wed, May 20 - Thu, May 28

9:45 am - 7:00 pm

MEL

STL

24h 15m

2 stops

7:20 pm - 5:00 am

STL

MEL

42h 40m

1 stop

$1,112American Airlines

Fri, May 22 - Fri, May 29

9:45 am - 11:59 pm

MEL

STL

29h 14m

1 stop

6:35 am - 6:45 am

STL

MEL

33h 10m

1 stop

$1,113American Airlines

Thu, May 14 - Sat, May 23

9:15 am - 10:19 pm

SYD

SGF

28h 04m

2 stops

6:05 am - 6:50 am

SGF

SYD

33h 45m

2 stops

$1,117Delta

Tue, May 26 - Tue, Jun 2

9:15 am - 10:19 pm

SYD

SGF

28h 04m

2 stops

12:07 pm - 6:50 am

SGF

SYD

27h 43m

2 stops

$1,118Delta

Tue, May 26 - Tue, Jun 2

10:55 am - 8:43 pm

MEL

STL

24h 48m

2 stops

1:38 pm - 8:15 am

STL

MEL

27h 37m

2 stops

$1,124United Airlines

Thu, May 14 - Tue, May 26

10:20 am - 10:21 am

SYD

MCI

39h 01m

2 stops

5:22 pm - 7:00 am

MCI

SYD

22h 38m

2 stops

$1,341United Airlines

Tue, Sep 1 - Tue, Sep 15

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United Airlines flights from Australia to Missouri

Our best United Airlines deals on Australia to Missouri flight tickets

United Airlines

May 14

MEL10:55 amMelbourne

22h 27m

1 stop

STL6:22 pmLambert-St Louis

May 24

STL1:38 pmLambert-St Louis

27h 37m

2 stops

MEL8:15 amMelbourne

$1,124

United Airlines

May 14

MEL10:55 amMelbourne

24h 48m

2 stops

STL8:43 pmLambert-St Louis

May 24

STL6:00 amLambert-St Louis

35h 15m

2 stops

MEL8:15 amMelbourne

$1,129

United Airlines

Jun 10

SYD10:20 amSydney Kingsford Smith

22h 57m

1 stop

STL6:17 pmLambert-St Louis

Jun 17

STL1:13 pmLambert-St Louis

26h 47m

2 stops

SYD7:00 amSydney Kingsford Smith

$1,217

American Airlines flights from Australia to Missouri

Our best American Airlines deals on Australia to Missouri flight tickets

American Airlines

May 22

MEL9:45 amMelbourne

24h 15m

2 stops

STL7:00 pmLambert-St Louis

May 29

STL7:20 pmLambert-St Louis

42h 40m

1 stop

MEL5:00 amMelbourne

$1,112

American Airlines

May 14

MEL9:45 amMelbourne

29h 14m

1 stop

STL11:59 pmLambert-St Louis

May 23

STL6:35 amLambert-St Louis

33h 10m

1 stop

MEL6:45 amMelbourne

$1,113

American Airlines

May 14

MEL9:45 amMelbourne

28h 14m

2 stops

STL10:59 pmLambert-St Louis

May 24

STL2:33 pmLambert-St Louis

25h 12m

2 stops

MEL6:45 amMelbourne

$1,118

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 5/20

9:20 am-12:06 pm

2 stops41h 46m

Lambert-St Louis

Thu 5/28

4:48 pm-7:20 am

2 stops23h 32m

$1,025

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 5/20

9:20 am-12:06 pm

2 stops41h 46m

Lambert-St Louis

Thu 5/28

4:48 pm-7:20 am

2 stops23h 32m

$1,027

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Mon 5/25

9:20 am-12:06 pm

2 stops41h 46m

Lambert-St Louis

Wed 8/5

12:10 pm-7:20 am

2 stops52h 10m

$1,069

SydneySt. Louis

SYD - STL

SYDSTL

Sydney Kingsford Smith

Wed 5/20

9:20 am-8:25 pm

2 stops26h 05m

Lambert-St Louis

Thu 5/28

1:05 pm-7:20 am

3 stops51h 15m

$1,070

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Fri 5/22

9:45 am-7:00 pm

2 stops24h 15m

Lambert-St Louis

Fri 5/29

7:20 pm-5:00 am

1 stop42h 40m

$1,112

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 5/14

9:45 am-11:59 pm

1 stop29h 14m

Lambert-St Louis

Sat 5/23

6:35 am-6:45 am

1 stop33h 10m

$1,113

SydneySpringfield

SYD - SGF

SYDSGF

Sydney Kingsford Smith

Tue 5/26

9:15 am-10:19 pm

2 stops28h 04m

Springfield-Branson

Tue 6/2

6:05 am-6:50 am

2 stops33h 45m

$1,117

SydneySpringfield

SYD - SGF

SYDSGF

Sydney Kingsford Smith

Tue 5/26

9:15 am-10:19 pm

2 stops28h 04m

Springfield-Branson

Tue 6/2

12:07 pm-6:50 am

2 stops27h 43m

$1,118

Quickest round-trip

MelbourneSt. Louis

MEL - STL

MELSTL

Melbourne

Thu 5/14

10:55 am-8:43 pm

2 stops24h 48m

Lambert-St Louis

Tue 5/26

1:38 pm-8:15 am

2 stops27h 37m

$1,124

SydneyKansas City

SYD - MCI

SYDMCI

Sydney Kingsford Smith

Tue 9/1

10:20 am-10:21 am

2 stops39h 01m

Kansas City

Tue 9/15

5:22 pm-7:00 am

2 stops22h 38m

$1,341

Flights are sorted by cheapest round-trip 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 $533. If you aren’t able to travel to Missouri during the month of May, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $538.

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	22h 13m
Direct flights	None

The fastest flight from Australia to Missouri takes 22h 13m

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 were last updated today.
How many operators does momondo search for flights from Australia to Missouri?
There is 1 operator available for flights from Australia to Missouri as of April 2026.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 travel and health documents required for your trip to Missouri 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 license, and a passport valid for six-months after you plan to arrive at Missouri. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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 $822	Free Cancellation	Rating 7.4 9,672 reviews		Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Australia to Missouri. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Missouri from Australia on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

Price alerts on flights to Missouri from Australia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.