Cheap flights from St. Louis (STL) to Australia from $1,125
This is the cheapest one-way flight price, found on 9/19. Prices may vary by date and flight preferences.
How far in advance should I book a flight from St. Louis to Australia?
Users have found that booking a flight from St. Louis to Australia at least 39 days early can save you up to 37% on average compared to booking a flight this week. If booking 39 days before your flight isn’t an option for you, users have found flights from St. Louis to Australia for as little as $2,615 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $2,615 for flights departing within the next 3 days.
What is the cheapest month to fly from St. Louis to Australia?
The best pricing can be found in the month of October. Prices to Australia from St. Louis average $2,011. You can even find prices in October for less than $2,011, as users have found deals to Australia from as low as $1,314. The month of December appears to be one of the more expensive times to travel to Australia from St. Louis. Flying in the targeted month can save you up to 29%.
When is the cheapest time to fly from St. Louis to Australia (STL - AU)?
When flying from St. Louis to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap United Airlines flights from St. Louis to Australia
Find some of the cheapest United Airlines flights traveling from St. Louis to Australia. It's recommended that users confirm their flight details before booking.
Cheap Qantas Airways flights from St. Louis to Australia
Take a gander at the lowest prices we've found on Qantas Airways flights from St. Louis to Australia. Deals frequently update to provide users with more options.
Cheap St. Louis to Australia flights in September & October 2023
The best prices found for STL to Australia flights for September, October
These are some of the best deals we've found on flights to Australia in 2023 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
St. Louis to Australia 2023 flight deals
Cheap flights to Australia from St. Louis found for this year
These are some of the best deals we've found on flights to Australia in 2023 at this time. If these deals don't appeal to you, be sure to come back soon for more options.
St. Louis to Australia flights leaving soon
Late deals on return flights to Australia from St. Louis, departing today and this week
Book one of these great deals on flights from St. Louis to Australia. Users should examine the flight details to ensure there are no surprises.
One-way flights to Australia from St. Louis
The cheapest one-way flights from St. Louis to Australia
If you're seeking multiple options on one-way flights from St. Louis to Australia, be sure to check out these deals, which are updated often. Users needing a return flight from St. Louis to Australia should utilize the search form above.
Find flights from St. Louis to Australia within your budget
Use the slider to find flights from St. Louis to Australia that fit your budget.
Fly from
Fly to
Budget
$1,125 - $2,243
Route
Depart
Return
Price
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Mon 3/11
2 stops29h 50m
Sydney Kingsford Smith
Sun 3/24
2 stops39h 28m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Sun 11/26
2 stops31h 50m
Sydney Kingsford Smith
Mon 12/25
1 stop27h 13m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Sun 3/3
2 stops32h 19m
Sydney Kingsford Smith
Sun 3/10
2 stops28h 12m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Wed 3/6
2 stops29h 35m
Sydney Kingsford Smith
Sun 3/31
2 stops23h 46m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Tue 11/28
1 stop20h 37m
Sydney Kingsford Smith
Sun 12/24
1 stop19h 59m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Sat 11/25
1 stop20h 31m
Sydney Kingsford Smith
Thu 12/21
1 stop19h 27m
Lambert-St LouisMelbourne
STL - MEL
STLMEL
Lambert-St Louis
Sat 11/4
2 stops52h 31m
Melbourne
Sun 11/19
2 stops47h 58m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Tue 3/12
2 stops32h 55m
Sydney Kingsford Smith
Tue 4/2
2 stops30h 29m
Lambert-St LouisMelbourne
STL - MEL
STLMEL
Lambert-St Louis
Sat 11/4
2 stops50h 45m
Melbourne
Fri 11/17
2 stops35h 55m
Reviews of airlines servicing Australia
Get a feel of what it's like to fly with United Airlines, Qantas Airways and Delta from St. Louis to Australia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
the seat is so narrow. i cant move my legs
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
the seat is so narrow. i cant move my legs
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
the seat is so narrow. i cant move my legs
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
the seat is so narrow. i cant move my legs
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
the seat is so narrow. i cant move my legs
Entertainment
Boarding
Food
Comfort
Crew
Overall
Reviews
the seat is so narrow. i cant move my legs
Related info for your journey
Useful info, stats and facts about St. Louis to Australia flights.
What airport do you fly from for flights from St. Louis to Australia?
For a flight from St. Louis to Australia, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.
Can I find flights from St. Louis to Australia for under $1,200 on Cheapflights?
Yes, there are multiple flights from St. Louis to Australia for under $1,200. The cheapest flight booked recently is on Air Canada for just $1,125, but on average you can expect to pay $1,372.
Are there last-minute flights available from St. Louis to Australia for under $2,600?
There are currently 4+ open flights from St. Louis to Australia within the next 7 days for less than $2,600.
What are the cheapest airlines to fly from St. Louis to Australia one-way?
To fly one-way, consider booking your trip with Air New Zealand, which is currently one of the cheapest options available, starting at $1,351. Qantas Airways flights start at $1,752 while deals on American Airlines start at $1,756 one-way.
What are the most popular routes from St. Louis to Australia?
The most popular flight routes from St. Louis to Australia are Lambert-St Louis - Sydney Kingsford Smith, Lambert-St Louis - Melbourne and Lambert-St Louis - Melbourne Avalon.
What are the most popular airlines that fly from St. Louis to Australia?
Consider American Airlines, Air Canada or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to Australia.
What does STL to SYD mean?
STL and SYD are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to SYD refers to a flight route from Lambert-St Louis Airport to Sydney Kingsford Smith Airport. Melbourne Airport (MEL), Brisbane Airport (BNE), Perth Airport (PER), Adelaide Airport (ADL), Coolangatta Gold Coast Airport (OOL) are other airports near this flight route and their unique identifiers/IATA codes.