$751 Find Cheap Flights from St. Louis to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Australia departing on 31/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from St. Louis to Australia

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney2 stops$1,565
Brisbane
Brisbane2 stops$1,325
Canberra
Canberra2 stops$2,188
Sydney
Sydney2 stops$1,565
Brisbane
Brisbane2 stops$1,325
Canberra
Canberra2 stops$2,188

Book Cheap St. Louis to Australia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from St. Louis to Australia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from St. Louis to Australia

Tue, 28 Apr - Tue, 5 May
Air Canada Logo
16:05 - 07:05
STL
-
BNE
48h 00m
2 stops
Air Canada Logo
10:00 - 20:25
BNE
-
STL
49h 25m
2 stops
$1,325Air Canada
Tue, 28 Apr - Tue, 5 May
Air Canada Logo
16:05 - 11:30
STL
-
BNE
52h 25m
3 stops
Air Canada Logo
10:00 - 20:25
BNE
-
STL
49h 25m
2 stops
$1,374Air Canada
Mon, 27 Apr - Mon, 4 May
Air Canada Logo
16:05 - 07:05
STL
-
BNE
48h 00m
2 stops
Air Canada Logo
20:45 - 20:04
BNE
-
STL
38h 19m
3 stops
$1,375Air Canada
Fri, 24 Apr - Fri, 1 May
Multiple Airlines Logo
14:40 - 07:05
STL
-
BNE
25h 25m
2 stops
Multiple Airlines Logo
20:45 - 12:06
BNE
-
STL
54h 21m
3 stops
$1,550Multiple Airlines
Sat, 25 Apr - Sat, 2 May
Multiple Airlines Logo
18:11 - 19:20
STL
-
MEL
34h 09m
2 stops
Multiple Airlines Logo
07:30 - 22:57
MEL
-
STL
30h 27m
2 stops
$1,612Multiple Airlines
Sun, 26 Apr - Sun, 3 May
Qantas Airways Logo
06:21 - 09:20
STL
-
SYD
35h 59m
2 stops
Qantas Airways Logo
12:00 - 17:21
SYD
-
STL
20h 21m
1 stop
$1,722Qantas Airways
Sun, 19 Apr - Sun, 3 May
Air New Zealand Logo
10:09 - 10:55
STL
-
MEL
33h 46m
2 stops
Air New Zealand Logo
08:35 - 22:30
MEL
-
STL
28h 55m
2 stops
$1,726Air New Zealand
Sun, 26 Apr - Sun, 3 May
Air New Zealand Logo
06:00 - 10:40
STL
-
SYD
37h 40m
2 stops
Air New Zealand Logo
09:55 - 22:30
SYD
-
STL
27h 35m
2 stops
$1,728Air New Zealand
Tue, 5 May - Mon, 18 May
Qantas Airways Logo
06:21 - 09:05
STL
-
MEL
35h 44m
2 stops
Qantas Airways Logo
13:35 - 19:30
MEL
-
STL
20h 55m
1 stop
$1,752Qantas Airways
Mon, 27 Apr - Mon, 4 May
American Airlines Logo
15:38 - 12:10
STL
-
CBR
29h 32m
2 stops
American Airlines Logo
06:10 - 19:30
CBR
-
STL
28h 20m
2 stops
$2,188American Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to Australia flights

Get data-powered insights and trends into flights from St. Louis to Australia to help you find the cheapest flights, the best time to fly, and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Australia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Australia is March, when tickets cost $1,783 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is $2,345 and $2,146 respectively.

Find deals

Good to know

Low seasonMarch
Cheapest flight$751
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 1% lower on average.
Flight from St. Louis to Sydney

FAQs - booking Australia flights

  • How does KAYAK find such low prices on flights from St. Louis to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to Australia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from St. Louis to Australia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from St. Louis to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Australia

Information on your arrival and departure airports

St. Louis (STL)