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Cheap flights from St. Louis to Australia from $843

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Australia departing on 20/9. 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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Cheap return flights

Qantas Airways Logo
12:20 - 06:55STL-SYD
27h 35m1 stop
Qantas Airways Logo
09:10 - 22:59SYD-STL
28h 49m1 stop
$1,710Qantas Airways
Find Deal
Thu, 21 Aug - Sat, 6 Sep
Qantas Airways Logo
06:15 - 22:25STL-SYD
47h 10m2 stops
Qantas Airways Logo
14:20 - 16:09SYD-STL
18h 49m1 stop
$1,727Qantas Airways
Find Deal
Wed, 5 Nov - Sun, 23 Nov
Air Canada Logo
13:30 - 07:20STL-SYD
26h 50m2 stops
Air Canada Logo
09:20 - 19:57SYD-STL
25h 37m2 stops
$1,739Air Canada
Find Deal
Thu, 21 Aug - Sat, 6 Sep
 Logo
13:30 - 07:20STL-SYD
26h 50m2 stops
 Logo
09:20 - 16:32SYD-STL
22h 12m2 stops
$1,753
Find Deal
Sun, 14 Sep - Sat, 27 Sep
 Logo
13:30 - 07:20STL-SYD
26h 50m2 stops
 Logo
09:20 - 16:32SYD-STL
22h 12m2 stops
$1,754
Find Deal
Sun, 14 Sep - Sat, 27 Sep
American Airlines Logo
18:14 - 07:05STL-SYD
21h 51m2 stops
American Airlines Logo
12:10 - 21:10SYD-STL
24h 00m2 stops
$1,789American Airlines
Find Deal
Thu, 21 Aug - Wed, 3 Sep
American Airlines Logo
10:08 - 06:55STL-SYD
29h 47m1 stop
American Airlines Logo
09:10 - 18:23SYD-STL
24h 13m2 stops
$1,791American Airlines
Find Deal
Thu, 21 Aug - Sat, 6 Sep
Air Canada Logo
13:30 - 07:20STL-SYD
26h 50m2 stops
Air Canada Logo
09:20 - 19:45SYD-STL
49h 25m2 stops
$1,898Air Canada
Find Deal
Fri, 8 Aug - Fri, 15 Aug
United Airlines Logo
17:49 - 06:55STL-SYD
22h 06m1 stop
United Airlines Logo
10:20 - 16:53SYD-STL
21h 33m1 stop
$2,031United Airlines
Find Deal
Thu, 21 Aug - Thu, 28 Aug
United Airlines Logo
16:32 - 07:00STL-SYD
23h 28m2 stops
United Airlines Logo
10:20 - 16:53SYD-STL
21h 33m1 stop
$2,037United Airlines
Find Deal
Sat, 23 Aug - Wed, 27 Aug

Qantas Airways flights from St. Louis to Australia

Our best Qantas Airways deals on St. Louis to Australia flight tickets
Qantas Airways
21 Aug
STL12:20Lambert-St Louis
27h 35m
1 stop
SYD06:55Sydney Kingsford Smith
6 Sept
SYD09:10Sydney Kingsford Smith
28h 49m
1 stop
STL22:59Lambert-St Louis
Qantas Airways
5 Nov
STL06:15Lambert-St Louis
47h 10m
2 stops
SYD22:25Sydney Kingsford Smith
23 Nov
SYD14:20Sydney Kingsford Smith
18h 49m
1 stop
STL16:09Lambert-St Louis
Qantas Airways
28 Nov
STL06:15Lambert-St Louis
34h 05m
2 stops
SYD09:20Sydney Kingsford Smith
14 Dec
SYD14:20Sydney Kingsford Smith
20h 55m
1 stop
STL18:15Lambert-St Louis

Air Canada flights from St. Louis to Australia

Our best Air Canada deals on St. Louis to Australia flight tickets
Air Canada
21 Aug
STL13:30Lambert-St Louis
26h 50m
2 stops
SYD07:20Sydney Kingsford Smith
6 Sept
SYD09:20Sydney Kingsford Smith
25h 37m
2 stops
STL19:57Lambert-St Louis
Air Canada
8 Aug
STL13:30Lambert-St Louis
26h 50m
2 stops
SYD07:20Sydney Kingsford Smith
15 Aug
SYD09:20Sydney Kingsford Smith
49h 25m
2 stops
STL19:45Lambert-St Louis
Air Canada
22 Aug
STL13:30Lambert-St Louis
50h 50m
3 stops
SYD07:20Sydney Kingsford Smith
29 Aug
SYD09:20Sydney Kingsford Smith
45h 01m
2 stops
STL15:21Lambert-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 month to fly to Australia?

In general, August is the cheapest month to fly from St. Louis to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,927. If you don’t want to visit Australia in August, then you should wait until May to fly from St. Louis, when ticket prices are also cheap, with an average price of $2,117.

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 St. Louis to Australia in the afternoon for as low as $1,918. 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 $2,700. 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 St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $2,253 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 St. Louis for as low as $1,947 on momondo.

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

You could potentially save up to 22% 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

$843

Fastest flight time

20h 13m

Direct flights

None

Airports in Australia

4 airports
The best one-way flight to Australia from St. Louis in the past 72 hours is $843. The best return flight deal from St. Louis to Australia found on momondo in the last 72 hours is $1,710.
The fastest flight from St. Louis to Australia takes 20h 13m
There are no direct flights from St. Louis to Australia. Popular non-direct routes for this connection are Lambert-St Louis Airport - Melbourne Airport, Lambert-St Louis Airport - Sydney Kingsford Smith Airport and Lambert-St Louis Airport - Brisbane Airport.
There are 4 airports near Australia: Canberra (CBR), 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 many operators does momondo search for flights from Lambert-St Louis Airport to Australia?

  • 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.


Best airlines flying from St. Louis to Australia

Compare and see reviews for airlines that fly from St. Louis to Australia with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $1,998Free cancellationRating
7.4
8,846 reviews
Search United Airlines flights

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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