$767 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 15/9. 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
Sydney1 stop$1,823
Brisbane
Brisbane2 stops$1,841
Canberra
Canberra2 stops$3,316
Sydney
Sydney1 stop$1,823
Brisbane
Brisbane2 stops$1,841
Canberra
Canberra2 stops$3,316

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

Sun, 18 Oct - Sun, 1 Nov
American Airlines Logo
12:43 - 06:45
STL
-
MEL
26h 02m
2 stops
American Airlines Logo
12:00 - 23:29
MEL
-
STL
27h 29m
1 stop
$1,778American Airlines
Sun, 18 Oct - Sun, 1 Nov
Qantas Airways Logo
06:30 - 06:45
STL
-
MEL
32h 15m
1 stop
Qantas Airways Logo
12:00 - 17:40
MEL
-
STL
21h 40m
1 stop
$1,781Qantas Airways
Fri, 12 Jun - Fri, 19 Jun
United Airlines Logo
19:23 - 08:15
STL
-
MEL
21h 52m
1 stop
United Airlines Logo
09:30 - 20:42
MEL
-
STL
26h 12m
2 stops
$1,794United Airlines
Sun, 7 Jun - Sat, 13 Jun
United Airlines Logo
19:23 - 08:15
STL
-
MEL
21h 52m
1 stop
United Airlines Logo
10:00 - 18:17
MEL
-
STL
47h 17m
2 stops
$1,816United Airlines
Tue, 13 Oct - Wed, 18 Nov
Air Canada Logo
12:10 - 08:20
STL
-
SYD
28h 10m
2 stops
Air Canada Logo
11:20 - 15:30
SYD
-
STL
45h 10m
2 stops
$1,994Air Canada
Wed, 23 Sep - Wed, 7 Oct
Multiple Airlines Logo
16:40 - 07:20
STL
-
SYD
23h 40m
2 stops
Multiple Airlines Logo
10:20 - 18:41
SYD
-
STL
48h 21m
2 stops
$2,002Multiple Airlines
Tue, 13 Oct - Fri, 13 Nov
Air Canada Logo
12:10 - 08:20
STL
-
SYD
52h 10m
3 stops
Air Canada Logo
11:20 - 15:30
SYD
-
STL
45h 10m
2 stops
$2,005Air Canada
Tue, 18 Aug - Sun, 20 Sep
Qatar Airways Logo
06:02 - 18:35
STL
-
PER
47h 33m
2 stops
Qatar Airways Logo
22:45 - 23:59
PER
-
STL
38h 14m
2 stops
$2,160Qatar Airways
Sun, 18 Oct - Sun, 1 Nov
Multiple Airlines Logo
14:40 - 12:10
STL
-
MEL
29h 30m
3 stops
Multiple Airlines Logo
07:25 - 16:30
MEL
-
STL
49h 05m
3 stops
$2,174Multiple Airlines
Tue, 18 Aug - Mon, 21 Sep
Qatar Airways Logo
06:02 - 18:35
STL
-
PER
47h 33m
2 stops
Qatar Airways Logo
22:45 - 09:16
PER
-
STL
47h 31m
2 stops
$2,436Qatar Airways
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 May, when tickets cost $434 (return) on average. On the other hand, the most expensive months are June and September, when the average cost of return tickets is $1,714 and $1,650 respectively.

Find deals

Good to know

Low seasonMarch
Cheapest flight$879
Best time to beat the crowds (1% less expensive 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)