Which airlines fly to St. Louis?

Qantas Airways, United Airlines and American Airlines are the top three most popular airlines that fly to St. Louis from Australia according to our data. Qantas Airways is the first choice among our users, with 43% of people opting to fly with this airline when travelling to St. Louis. Keep in mind that there are 3 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Australia to Lambert-St Louis?

Delta, American Airlines, and United Airlines are the most popular carriers operating from Australia to Lambert-St Louis

How long does it take to fly to St. Louis?

The flight from Australia to St. Louis depends on which airports you’re departing from and arriving to, 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 St. Louis), then the flight time is 20h 56m on average. If you fly from Brisbane (another popular airport in Australia) to St. Louis, then the average flight time is 25h 20m.

When did momondo last update prices for flights from Australia to Lambert-St Louis Airport?

Prices for flights from Australia to Lambert-St Louis Airport refresh daily.

How many operators does momondo search for flights from Australia to Lambert-St Louis Airport?

As of August 2026, there are 3 operators available to choose from for flights from Australia to Lambert-St Louis Airport.

How old do you have to be to fly from Australia to Lambert-St Louis Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Australia to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The required travel and health documents for your Lambert-St Louis Airport 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 Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$857 Cheap Flights from Australia to St. Louis in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Australia to St. Louis

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One-way

Recent return flight deals from Australia to St. Louis

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22:45 - 17:41MEL Melbourne-STL Lambert-St Louis

35h 56m2 stops Los Angeles Los Angeles Dallas/Fort Worth

14:54 - 05:00STL Lambert-St Louis-MEL Melbourne

21h 06m1 stop Dallas/Fort Worth

$1,476American Airlines

Fri, 5 Feb - Tue, 9 Feb

22:45 - 17:41MEL Melbourne-STL Lambert-St Louis

35h 56m2 stops Los Angeles Los Angeles Dallas/Fort Worth

14:54 - 05:00STL Lambert-St Louis-MEL Melbourne

21h 06m1 stop Dallas/Fort Worth

$1,480American Airlines

Fri, 5 Feb - Tue, 9 Feb

10:10 - 13:44SYD Sydney Kingsford Smith-STL Lambert-St Louis

43h 34m2 stops Los Angeles Los Angeles Phoenix Sky Harbor Intl

15:20 - 06:55STL Lambert-St Louis-SYD Sydney Kingsford Smith

23h 35m1 stop Dallas/Fort Worth

$1,502American Airlines

Wed, 21 Oct - Sat, 24 Oct

11:50 - 16:57SYD Sydney Kingsford Smith-STL Lambert-St Louis

22h 07m2 stops San Francisco Denver Intl

13:15 - 09:05STL Lambert-St Louis-SYD Sydney Kingsford Smith

26h 50m3 stops Chicago O'Hare Intl Houston George Bush Intcntl Los Angeles Los Angeles

$1,746United Airlines

Tue, 17 Nov - Tue, 1 Dec

10:20 - 16:34SYD Sydney Kingsford Smith-STL Lambert-St Louis

21h 14m2 stops San Francisco Denver Intl

13:29 - 06:55STL Lambert-St Louis-SYD Sydney Kingsford Smith

26h 26m2 stops Chicago O'Hare Intl San Francisco

$1,757United Airlines

Wed, 23 Sep - Wed, 30 Sep

09:10 - 20:52SYD Sydney Kingsford Smith-STL Lambert-St Louis

26h 42m2 stops Los Angeles Los Angeles Phoenix Sky Harbor Intl

11:01 - 07:05STL Lambert-St Louis-SYD Sydney Kingsford Smith

29h 04m2 stops Chicago O'Hare Intl Los Angeles Los Angeles

$1,760Qantas Airways

Wed, 23 Sep - Wed, 30 Sep

09:15 - 23:16SYD Sydney Kingsford Smith-STL Lambert-St Louis

29h 01m2 stops Los Angeles Los Angeles Minneapolis St Paul

17:47 - 06:50STL Lambert-St Louis-SYD Sydney Kingsford Smith

46h 03m2 stops Minneapolis St Paul Los Angeles Los Angeles

$1,760Delta

Tue, 22 Sep - Fri, 2 Oct

10:30 - 11:17BNE Brisbane-STL Lambert-St Louis

39h 47m3 stops San Francisco Los Angeles Los Angeles Las Vegas Harry Reid Intl

12:17 - 20:30STL Lambert-St Louis-BNE Brisbane

41h 13m3 stops Las Vegas Harry Reid Intl Los Angeles Los Angeles Sydney Kingsford Smith

$1,765Multiple Airlines

Wed, 16 Sep - Tue, 22 Sep

18:50 - 23:46SYD Sydney Kingsford Smith-STL Lambert-St Louis

20h 56m1 stop Los Angeles Los Angeles

06:04 - 07:30STL Lambert-St Louis-SYD Sydney Kingsford Smith

33h 26m1 stop Los Angeles Los Angeles

$1,792Qantas Airways

Thu, 8 Oct - Thu, 15 Oct

11:20 - 16:37SYD Sydney Kingsford Smith-STL Lambert-St Louis

21h 17m2 stops San Francisco Denver Intl

13:08 - 09:20STL Lambert-St Louis-SYD Sydney Kingsford Smith

27h 12m2 stops Chicago O'Hare Intl San Francisco

$1,807United Airlines

Tue, 13 Oct - Thu, 5 Nov

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American Airlines flights from Australia to St. Louis

Our best American Airlines deals on Australia to St. Louis flight tickets

American Airlines

5 Feb

MEL22:45Melbourne

35h 56m

2 stops

STL17:41Lambert-St Louis

9 Feb

STL14:54Lambert-St Louis

21h 06m

1 stop

MEL05:00Melbourne

$1,476

American Airlines

5 Feb

MEL22:45Melbourne

35h 56m

2 stops

STL17:41Lambert-St Louis

9 Feb

STL14:54Lambert-St Louis

21h 06m

1 stop

MEL05:00Melbourne

$1,480

American Airlines

21 Oct

SYD10:10Sydney Kingsford Smith

43h 34m

2 stops

STL13:44Lambert-St Louis

24 Oct

STL15:20Lambert-St Louis

23h 35m

1 stop

SYD06:55Sydney Kingsford Smith

$1,502

Turkish Airlines flights from Australia to St. Louis

Our best Turkish Airlines deals on Australia to St. Louis flight tickets

Turkish Airlines

21 Oct

SYD22:05Sydney Kingsford Smith

39h 16m

3 stops

STL21:21Lambert-St Louis

24 Oct

STL08:00Lambert-St Louis

67h 25m

3 stops

SYD19:25Sydney Kingsford Smith

$2,651

Turkish Airlines

20 Oct

SYD22:05Sydney Kingsford Smith

39h 16m

3 stops

STL21:21Lambert-St Louis

24 Oct

STL08:00Lambert-St Louis

67h 25m

3 stops

SYD19:25Sydney Kingsford Smith

$2,660

Turkish Airlines

21 Oct

SYD22:05Sydney Kingsford Smith

39h 16m

3 stops

STL21:21Lambert-St Louis

24 Oct

STL08:00Lambert-St Louis

67h 25m

3 stops

SYD19:25Sydney Kingsford Smith

$2,667

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Fri 5/2

22:45-17:41

2 stops35h 56m

Lambert-St Louis

Tue 9/2

14:54-05:00

1 stop21h 06m

$1,476

MelbourneSt. Louis

MEL Melbourne - STL Lambert-St Louis

MELSTL

Melbourne

Fri 5/2

22:45-17:41

2 stops35h 56m

Lambert-St Louis

Tue 9/2

14:54-05:00

1 stop21h 06m

$1,480

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 21/10

10:10-13:44

2 stops43h 34m

Lambert-St Louis

Sat 24/10

15:20-06:55

1 stop23h 35m

$1,502

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 17/11

11:50-16:57

2 stops22h 07m

Lambert-St Louis

Tue 1/12

13:15-09:05

3 stops26h 50m

$1,746

Fastest return journey

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 23/9

10:20-16:34

2 stops21h 14m

Lambert-St Louis

Wed 30/9

13:29-06:55

2 stops26h 26m

$1,757

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Wed 23/9

09:10-20:52

2 stops26h 42m

Lambert-St Louis

Wed 30/9

11:01-07:05

2 stops29h 04m

$1,760

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 22/9

09:15-23:16

2 stops29h 01m

Lambert-St Louis

Fri 2/10

17:47-06:50

2 stops46h 03m

$1,760

BrisbaneSt. Louis

BNE Brisbane - STL Lambert-St Louis

BNESTL

Brisbane

Wed 16/9

10:30-11:17

3 stops39h 47m

Lambert-St Louis

Tue 22/9

12:17-20:30

3 stops41h 13m

$1,765

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Thu 8/10

18:50-23:46

1 stop20h 56m

Lambert-St Louis

Thu 15/10

06:04-07:30

1 stop33h 26m

$1,792

SydneySt. Louis

SYD Sydney Kingsford Smith - STL Lambert-St Louis

SYDSTL

Sydney Kingsford Smith

Tue 13/10

11:20-16:37

2 stops21h 17m

Lambert-St Louis

Thu 5/11

13:08-09:20

2 stops27h 12m

$1,807

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 St. Louis

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 St. Louis?

The month of June is, on average, the cheapest month to fly to St. Louis from Australia, with most prices found around $1,141. If you aren’t able to travel to St. Louis during the month of June, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $1,462.

Can stopping save me money on Australia to St. Louis flights?

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

Cheap Australia to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Australia to St. Louis

Best price found	$857
Fastest flight time	20h 56m
Direct flights	None

The best one-way flight to St. Louis from Australia in the past 72 hours is $857. The best return flight deal from Australia to St. Louis found on momondo in the last 72 hours is $1,476.

The fastest flight from Australia to St. Louis takes 20h 56m

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

Search flight deals

Frequently asked questions about flying from Australia to St. Louis

When did momondo last update prices for flights from Australia to Lambert-St Louis Airport?
Prices for flights from Australia to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Australia to Lambert-St Louis Airport?
As of August 2026, there are 3 operators available to choose from for flights from Australia to Lambert-St Louis Airport.
How old do you have to be to fly from Australia to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Australia to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport 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 Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Australia to St. Louis

Compare and see reviews for airlines that fly from Australia to St. Louis with momondo

Airline	Rating	Free cancellation	Price
Qantas Airways	PriceFrom $1,084	Free cancellation	Rating 7.5 1,085 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,138	Free cancellation	Rating 7.4 10,127 reviews	Search United Airlines flights
American Airlines	PriceFrom $1,448	Free cancellation	Rating 7.1 12,011 reviews	Search American Airlines flights

Collinsville

St. Charles

Why use momondo?

Why should I use momondo to find a flight deal from Australia to St. Louis?

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

Can I find flights from Australia to St. Louis with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Australia to St. Louis flights to just show those with flexible booking policies.

How can momondo help me find flights from Australia to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Australia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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Cheap flights from Australia to St. Louis from $857

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to St. Louis departing on 2/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Australia to St. Louis

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American Airlines flights from Australia to St. Louis

Our best American Airlines deals on Australia to St. Louis flight tickets

Turkish Airlines flights from Australia to St. Louis

Our best Turkish Airlines deals on Australia to St. Louis flight tickets

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See travel insights to St. Louis from

How to get the cheapest flight ticket from Australia to St. Louis

What is the cheapest month to fly to St. Louis?

Can stopping save me money on Australia to St. Louis flights?

What is the cheapest airline that flies from Australia to Lambert-St Louis?

Which airlines fly to St. Louis?

How long does it take to fly to St. Louis?

Cheap Australia to St. Louis flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from Australia to St. Louis

Best airlines flying from Australia to St. Louis

Compare and see reviews for airlines that fly from Australia to St. Louis with momondo

Travelling to a place near St. Louis?

Why use momondo?

An easier way to manage your St. Louis trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Missouri

Fly your favourite airline to St. Louis

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