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Cheap flights from St. Louis to Australia from $1,817

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Australia departing on 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Australia

Cheap return flights

These are some of the best return flight deals from St. Louis to Australia that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Australia.

Cheap last-minute flights

Planning a quick getaway from St. Louis to Australia? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Australia, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from St. Louis to Australia

Find recent round-trip train or bus tickets from St. Louis to Australia.

All round-trip flight deals to Australia

The cheapest plane tickets to Australia found on KAYAK recently.
15:50 - 09:35STL-SYD
48h 45m2 stops
10:20 - 15:06SYD-STL
44h 46m2 stops
$1,817Air Canada
Find Deal
Sun, 2 Mar - Tue, 11 Mar
15:50 - 08:35STL-SYD
48h 45m2 stops
10:20 - 15:06SYD-STL
44h 46m2 stops
$1,826Air Canada
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Sun, 9 Mar - Tue, 25 Mar
16:29 - 07:00STL-SYD
22h 31m1 stop
11:50 - 20:54SYD-STL
25h 04m1 stop
$1,846United Airlines
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Mon, 10 Mar - Fri, 28 Mar
11:20 - 06:55STL-SYD
28h 35m2 stops
10:20 - 16:26SYD-STL
21h 06m2 stops
$1,852United Airlines
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Tue, 13 May - Tue, 20 May
10:10 - 06:00STL-SYD
27h 50m2 stops
10:05 - 17:59SYD-STL
23h 54m2 stops
$1,868Delta
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Sun, 9 Mar - Sat, 29 Mar
16:36 - 10:50STL-MEL
25h 14m2 stops
08:35 - 20:44MEL-STL
29h 09m2 stops
$2,153Air New Zealand
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Mon, 3 Feb - Sun, 16 Feb
16:36 - 10:50STL-MEL
25h 14m2 stops
08:35 - 20:44MEL-STL
29h 09m2 stops
$2,155Air New Zealand
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Mon, 3 Feb - Sun, 16 Feb
19:51 - 12:15STL-SYD
25h 24m2 stops
13:15 - 23:11SYD-STL
24h 56m2 stops
$2,188
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Thu, 1 May - Mon, 5 May
15:30 - 06:35STL-SYD
24h 05m2 stops
09:25 - 21:33SYD-STL
27h 08m2 stops
$2,259Delta
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Fri, 25 Apr - Wed, 7 May
15:50 - 14:10STL-MEL
53h 20m3 stops
07:00 - 15:06MEL-STL
49h 06m3 stops
$2,262
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Mon, 3 Feb - Sun, 16 Feb
07:00 - 08:20STL-SYD
32h 20m2 stops
$3,215
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Thu, 19 Dec
17:29 - 22:05STL-MEL
35h 36m2 stops
$3,631Qantas Airways
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Thu, 19 Dec
11:30 - 08:45STL-SYD
28h 15m3 stops
$4,081
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Thu, 19 Dec
15:50 - 10:35STL-MEL
73h 45m3 stops
$4,377Air Canada
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Thu, 19 Dec
08:30 - 07:00STL-SYD
29h 30m1 stop
$4,621United Airlines
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Thu, 19 Dec
17:29 - 05:40STL-MEL
43h 11m1 stop
$5,853Qantas Airways
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Thu, 19 Dec
11:05 - 08:45STL-SYD
28h 40m2 stops
12:10 - 16:56SYD-STL
21h 46m1 stop
$2,990Air New Zealand
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Sun, 24 Nov - Tue, 26 Nov
06:15 - 08:45STL-SYD
33h 30m2 stops
11:20 - 16:56SYD-STL
22h 36m2 stops
$3,019Air New Zealand
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Sun, 24 Nov - Tue, 26 Nov
13:39 - 10:00STL-MEL
27h 21m2 stops
11:30 - 21:36MEL-STL
27h 06m2 stops
$3,140United Airlines
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Wed, 27 Nov - Fri, 13 Dec
13:39 - 08:45STL-SYD
26h 06m3 stops
11:45 - 23:30SYD-STL
28h 45m3 stops
$3,376
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Sun, 24 Nov - Tue, 26 Nov
08:40 - 10:25STL-SYD
32h 45m3 stops
13:55 - 23:30SYD-STL
26h 35m3 stops
$3,531
Find Deal
Mon, 25 Nov - Wed, 27 Nov
06:17 - 05:00STL-BNE
30h 43m1 stop
09:40 - 19:28BNE-STL
25h 48m1 stop
$3,697Qantas Airways
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Sun, 24 Nov - Tue, 26 Nov
17:31 - 06:15STL-BNE
20h 44m1 stop
18:30 - 12:59BNE-STL
34h 29m2 stops
$3,705Qantas Airways
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Sun, 24 Nov - Tue, 26 Nov
06:15 - 09:15STL-SYD
34h 00m2 stops
11:30 - 16:38SYD-STL
70h 08m3 stops
$4,107United Airlines
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Mon, 25 Nov - Wed, 27 Nov
06:17 - 07:35STL-MEL
32h 18m1 stop
12:00 - 00:12MEL-STL
29h 12m1 stop
$4,237American Airlines
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Wed, 27 Nov - Fri, 13 Dec
12:49 - 07:35STL-MEL
25h 46m2 stops
12:00 - 00:12MEL-STL
29h 12m1 stop
$4,245American Airlines
Find Deal
Wed, 27 Nov - Fri, 13 Dec

United Airlines flights from St. Louis to Australia

Our best United Airlines deals on St. Louis to Australia flight tickets
United Airlines
10 Mar
STL16:29Lambert-St Louis
22h 31m
1 stop
SYD07:00Sydney Kingsford Smith
28 Mar
SYD11:50Sydney Kingsford Smith
25h 04m
1 stop
STL20:54Lambert-St Louis
United Airlines
13 May
STL11:20Lambert-St Louis
28h 35m
2 stops
SYD06:55Sydney Kingsford Smith
20 May
SYD10:20Sydney Kingsford Smith
21h 06m
2 stops
STL16:26Lambert-St Louis
United Airlines
2 Mar
STL16:39Lambert-St Louis
23h 36m
2 stops
SYD09:15Sydney Kingsford Smith
11 Mar
SYD11:50Sydney Kingsford Smith
19h 26m
1 stop
STL15:16Lambert-St Louis

Air Canada flights from St. Louis to Australia

Our best Air Canada deals on St. Louis to Australia flight tickets
Air Canada
2 Mar
STL15:50Lambert-St Louis
48h 45m
2 stops
SYD09:35Sydney Kingsford Smith
11 Mar
SYD10:20Sydney Kingsford Smith
44h 46m
2 stops
STL15:06Lambert-St Louis
Air Canada
9 Mar
STL15:50Lambert-St Louis
48h 45m
2 stops
SYD08:35Sydney Kingsford Smith
25 Mar
SYD10:20Sydney Kingsford Smith
44h 46m
2 stops
STL15:06Lambert-St Louis
Air Canada
15 Mar
STL15:50Lambert-St Louis
48h 45m
2 stops
SYD08:35Sydney Kingsford Smith
23 Mar
SYD10:20Sydney Kingsford Smith
44h 46m
2 stops
STL15:06Lambert-St Louis

See travel insights to Australia from

How to get the cheapest flight ticket from St. Louis 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

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

On average, the least expensive day to fly to Australia from St. Louis is on a Monday. momondo users have found tickets for Monday departures for as low as $0. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from St. Louis to Australia on a Friday will generally be more expensive and average around $2,707. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

You could potentially save up to 30% on your flight if you consider stops on a St. Louis to Australia flight.

Cheap St. Louis to Australia flight deals and tips

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

Best price found

$3,215

Fastest flight time

20h 04m

Direct flights

None

Airports in Australia

3 airports
The best one-way flight to Australia from St. Louis in the past 72 hours is $3,215. The best return flight deal from St. Louis to Australia found on momondo in the last 72 hours is $1,817.
The fastest flight from St. Louis to Australia takes 20h 04m
There are no direct flights from St. Louis to Australia. Popular non-direct routes for this connection are Lambert-St Louis Airport - Sydney Kingsford Smith Airport and Lambert-St Louis Airport - Melbourne Airport.
There are 3 airports near Australia: Melbourne (MEL), Brisbane (BNE), Sydney Kingsford Smith (SYD)

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

    Prices for flights from Lambert-St Louis Airport to Australia are refreshed on a daily basis.

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

    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 stopovers 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 Lambert-St Louis Airport to Australia.

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

    The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


Why use momondo?

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

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

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

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

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

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

Price alerts on flights to Australia from St. Louis 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.


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