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Cheap flights from St. Louis to Australia from $599

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 3/18. 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 round-trip flights

These are some of the best round-trip 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 layovers.

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.
3:50 pm - 8:40 amSTL-BNE
48h 50m2 stops
10:45 am - 3:06 pmBNE-STL
44h 21m2 stops
$1,074Air Canada
Find Deal
Sat, Jan 25 - Fri, Jan 31
3:50 pm - 8:40 amSTL-BNE
48h 50m2 stops
6:10 am - 3:06 pmBNE-STL
48h 56m3 stops
$1,132
Find Deal
Sat, Feb 8 - Sat, Feb 15
3:50 pm - 8:40 amSTL-BNE
48h 50m2 stops
7:50 pm - 3:06 pmBNE-STL
59h 16m3 stops
$1,137Air Canada
Find Deal
Sat, Jan 25 - Fri, Jan 31
12:41 pm - 7:30 amSTL-BNE
26h 49m2 stops
11:40 am - 6:56 pmBNE-STL
23h 16m1 stop
$1,159United Airlines
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Sat, Feb 8 - Sat, Feb 15
5:30 pm - 6:45 amSTL-BNE
46h 15m2 stops
10:30 am - 9:06 pmBNE-STL
25h 36m2 stops
$1,176Delta
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Tue, Mar 18 - Wed, Mar 26
4:30 pm - 6:30 amSTL-BNE
47h 00m2 stops
10:40 am - 5:53 pmBNE-STL
22h 13m1 stop
$1,179United Airlines
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Tue, Mar 18 - Wed, Mar 26
4:17 pm - 11:00 amSTL-BNE
27h 43m2 stops
12:15 pm - 8:21 pmBNE-STL
23h 06m2 stops
$1,579Air New Zealand
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Wed, May 14 - Wed, May 21
4:36 pm - 10:50 amSTL-MEL
25h 14m2 stops
12:05 pm - 8:44 pmMEL-STL
25h 39m2 stops
$1,616Air New Zealand
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Mon, Feb 3 - Sun, Feb 16
6:19 pm - 7:05 amSTL-SYD
21h 46m1 stop
9:10 am - 11:11 pmSYD-STL
29h 01m1 stop
$1,641Qantas Airways
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Tue, May 13 - Tue, May 27
5:37 pm - 5:30 amSTL-BNE
20h 53m1 stop
8:05 am - 3:16 pmBNE-STL
22h 11m1 stop
$1,739Qantas Airways
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Tue, Mar 18 - Wed, Mar 26
7:00 am - 9:00 pmSTL-BNE
47h 00m3 stops
Tue, Mar 18
5:37 pm - 9:50 pmSTL-SYD
35h 13m2 stops
$600Fiji Airways
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Tue, Feb 25
5:37 pm - 10:25 pmSTL-BNE
37h 48m2 stops
$626Fiji Airways
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Tue, Mar 18
3:50 pm - 8:20 amSTL-SYD
48h 30m2 stops
$716Air Canada
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Tue, Apr 1
1:30 pm - 7:20 amSTL-SYD
50h 50m3 stops
$775Air Canada
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Fri, Jun 20
10:55 am - 9:15 amSTL-SYD
29h 20m2 stops
$809United Airlines
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Wed, Feb 12
4:30 pm - 7:00 amSTL-SYD
21h 30m1 stop
$874United Airlines
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Fri, Feb 28
5:37 pm - 6:55 amSTL-SYD
21h 18m1 stop
$989Qantas Airways
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Tue, Apr 1
6:29 am - 7:05 amSTL-SYD
33h 36m1 stop
$1,124American Airlines
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Fri, Jun 20
5:37 pm - 5:30 amSTL-BNE
20h 53m1 stop
$1,165Qantas Airways
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Tue, Mar 18
3:50 pm - 9:35 amSTL-SYD
48h 45m2 stops
4:00 pm - 3:06 pmSYD-STL
40h 06m2 stops
$1,310Air Canada
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Sun, Dec 29 - Mon, Jan 13
3:50 pm - 9:35 amSTL-SYD
48h 45m2 stops
11:20 am - 3:06 pmSYD-STL
44h 46m2 stops
$1,385Air Canada
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Sun, Dec 29 - Sat, Jan 18
3:50 pm - 6:55 amSTL-SYD
46h 05m2 stops
11:20 am - 3:06 pmSYD-STL
44h 46m2 stops
$1,609Air Canada
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Mon, Dec 30 - Tue, Jan 14
8:50 am - 9:15 amSTL-SYD
31h 25m1 stop
11:50 am - 10:20 pmSYD-STL
27h 30m1 stop
$1,704United Airlines
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Sun, Dec 29 - Sun, Jan 12
11:10 am - 9:05 amSTL-SYD
28h 55m2 stops
12:10 pm - 6:09 pmSYD-STL
22h 59m1 stop
$1,708United Airlines
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Sun, Dec 29 - Tue, Jan 14
12:55 pm - 6:50 amSTL-SYD
24h 55m2 stops
11:05 am - 9:33 pmSYD-STL
27h 28m2 stops
$2,118Delta
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Sun, Dec 29 - Sat, Jan 11
6:00 am - 8:45 amSTL-SYD
33h 45m2 stops
12:10 pm - 6:09 pmSYD-STL
22h 59m1 stop
$2,310Air New Zealand
Find Deal
Mon, Dec 30 - Fri, Jan 10
6:00 am - 8:45 amSTL-SYD
33h 45m2 stops
12:10 pm - 12:28 amSYD-STL
29h 18m1 stop
$2,317Air New Zealand
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Sun, Dec 29 - Tue, Dec 31
5:29 pm - 2:55 pmSTL-SYD
28h 26m2 stops
5:25 pm - 11:03 pmSYD-STL
22h 38m1 stop
$2,706Qantas Airways
Find Deal
Mon, Dec 30 - Thu, Jan 9
5:29 pm - 6:35 amSTL-SYD
20h 06m1 stop
5:25 pm - 11:03 pmSYD-STL
22h 38m1 stop
$2,927Qantas Airways
Find Deal
Mon, Dec 30 - Mon, Jan 13

Fiji Airways flights from St. Louis to Australia

Our best Fiji Airways deals on St. Louis to Australia flight tickets
Fiji Airways
May 13
STL7:55 pmLambert-St Louis
24h 50m
2 stops
SYD11:45 amSydney Kingsford Smith
May 27
SYD1:15 pmSydney Kingsford Smith
24h 09m
2 stops
STL10:24 pmLambert-St Louis
Fiji Airways
Feb 4
STL5:12 pmLambert-St Louis
26h 03m
2 stops
MEL12:15 pmMelbourne
Feb 11
MEL1:45 pmMelbourne
22h 45m
2 stops
STL7:30 pmLambert-St Louis
Fiji Airways
Feb 15
STL5:37 pmLambert-St Louis
25h 38m
2 stops
MEL12:15 pmMelbourne
Apr 15
MEL12:55 pmMelbourne
24h 34m
2 stops
STL10:29 pmLambert-St Louis

Alaska Airlines flights from St. Louis to Australia

Our best Alaska Airlines deals on St. Louis to Australia flight tickets
Alaska Airlines
Mar 6
STL7:00 amLambert-St Louis
43h 45m
2 stops
SYD7:45 pmSydney Kingsford Smith
Mar 9
SYD9:40 pmSydney Kingsford Smith
32h 45m
2 stops
STL2:25 pmLambert-St Louis
Alaska Airlines
Feb 7
STL2:49 pmLambert-St Louis
35h 56m
2 stops
SYD7:45 pmSydney Kingsford Smith
Feb 14
SYD9:40 pmSydney Kingsford Smith
33h 45m
2 stops
STL2:25 pmLambert-St Louis
Alaska Airlines
Jan 12
STL2:49 pmLambert-St Louis
35h 56m
3 stops
SYD7:45 pmSydney Kingsford Smith
Jan 18
SYD9:40 pmSydney Kingsford Smith
33h 13m
2 stops
STL1:53 pmLambert-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?

The month of March is, on average, the cheapest month to fly to Australia from St. Louis, with most prices found around $1,282. If you aren’t able to travel during the month of March, then book flights to Australia from St. Louis during January instead. Flights to Australia in January, while not as cheap as those in March, still average around $1,329.

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

The cheapest day to depart from St. Louis to Australia is on a Wednesday. Travelers who choose to depart for Australia on a Wednesday will often find tickets for as low as $1,392. On the other hand, Saturday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,518.

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

Flying to Australia from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,440 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,882 on average. Flights to Australia from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Australia?

The best time to book a flight to Australia from St. Louis is 60 days out, which is when prices tend to be around $1,503. Keep in mind that you might be able to find cheaper flights to Australia at any time. In fact, our users found flights for as low as $934 in the past 72 hours.

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

You could potentially save up to 25% 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

$599

Fastest flight time

20h 00m

Direct flights

None

Airports in Australia

5 airports
The best one-way flight to Australia from St. Louis in the past 72 hours is $599. The best round-trip flight deal from St. Louis to Australia found on momondo in the last 72 hours is $1,074.
The fastest flight from St. Louis to Australia takes 20h 00m
There are no direct flights from St. Louis to Australia. Popular non-direct routes for this connection are Lambert-St Louis Airport - Perth Airport, Lambert-St Louis Airport - Sydney Kingsford Smith Airport and Lambert-St Louis Airport - Brisbane Airport.
There are 5 airports near Australia: Melbourne Avalon (AVV), Melbourne (MEL), Brisbane (BNE), Perth (PER), 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 refresh daily.

  • 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 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 Lambert-St Louis Airport 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 license, 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 St. Louis to Australia

Compare and see reviews for airlines that fly from St. Louis to Australia with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $687Free CancellationRating
7.5
810 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $924Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
DeltaPriceFrom $942Free CancellationRating
8.0
8,580 reviews
Search Delta flights
Air CanadaPriceFrom $962Free CancellationRating
7.0
8,426 reviews
Search Air Canada flights
American AirlinesPriceFrom $1,134Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air New ZealandPriceFrom $1,322Free CancellationRating
7.9
488 reviews
Search Air New Zealand flights
Qatar AirwaysPriceFrom $1,559Free CancellationRating
7.5
3,785 reviews
Search Qatar Airways flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from St. Louis.

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?

Once you have performed a search for St. Louis to Australia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from St. Louis 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.


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