$610+ Cheap flights from St. Louis (STL) to New South Wales
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Mar 20 — Mar 271
1 adult, Economy
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Find cheap flights from St. Louis to New South Wales with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to New South Wales
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to New South WalesExplore the most affordable flight options available from St. Louis to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.
Explore the most affordable flight options available from St. Louis to New South Wales. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.
This oojo deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:50 pm
STL
- SYD
2 stops34h 00m
Qantas Airways
Tue 4/75:50 pm
SYD
- STL
1 stop21h 07m
Qantas Airways
Deal found 2/16![Qantas Airways logo]()
$910
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:10 pm
STL
- SYD
2 stops28h 10m
Air Canada
Fri 10/2310:20 am
SYD
- STL
2 stops48h 06m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,038
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/112:10 pm
STL
- SYD
2 stops52h 10m
Air Canada
Sun 8/99:20 am
SYD
- STL
2 stops48h 07m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,051
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:55 am
STL
- SYD
2 stops31h 25m
Air Canada
Mon 9/149:20 am
SYD
- STL
2 stops48h 21m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,056
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:15 pm
STL
- SYD
2 stops48h 20m
Air Canada
Tue 11/2411:20 am
SYD
- STL
2 stops45h 10m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,071
This BusinessClass deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:15 pm
STL
- SYD
1 stop48h 20m
Multiple Airlines
Tue 11/2411:20 am
SYD
- STL
1 stop45h 10m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$1,084
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:10 pm
STL
- SYD
2 stops28h 10m
Air Canada
Sun 8/309:20 am
SYD
- STL
2 stops48h 07m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,085
This Air Canada deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/41:00 pm
STL
- SYD
3 stops51h 20m
Air Canada
Mon 5/189:20 am
SYD
- STL
2 stops25h 45m
Air Canada
Deal found 2/18![Air Canada logo]()
$1,093
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:05 pm
STL
- SYD
2 stops48h 15m
Air Canada
Thu 4/309:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,108
Best flights from St. Louis to New South WalesDiscover carefully curated flight deals from St. Louis to New South Wales that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 18, 2026.
Discover carefully curated flight deals from St. Louis to New South Wales that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 18, 2026.
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/112:10 pm
STL
- SYD
2 stops52h 10m
Air Canada
Sun 8/99:20 am
SYD
- STL
2 stops48h 07m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,051
This BusinessClass deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:05 pm
STL
- SYD
1 stop48h 15m
Multiple Airlines
Thu 4/309:20 am
SYD
- STL
1 stop41h 46m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$1,196
This United Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:06 pm
STL
- SYD
1 stop20h 49m
United Airlines
Mon 5/1810:20 am
SYD
- STL
1 stop23h 02m
United Airlines
Deal found 2/18![United Airlines logo]()
$1,200
This oojo deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:13 pm
STL
- SYD
1 stop22h 42m
Qantas Airways
Wed 3/256:05 am
SYD
- STL
2 stops25h 23m
Qantas Airways
Deal found 2/18![Qantas Airways logo]()
$1,204
This Air Canada deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/41:00 pm
STL
- SYD
3 stops51h 20m
Air Canada
Mon 5/189:20 am
SYD
- STL
2 stops25h 45m
Air Canada
Deal found 2/18![Air Canada logo]()
$1,093
This United Airlines deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:06 pm
STL
- SYD
1 stop20h 49m
United Airlines
Sun 7/510:20 am
SYD
- STL
1 stop22h 33m
United Airlines
Deal found 2/14![United Airlines logo]()
$1,200
This Air Canada deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:40 pm
STL
- SYD
2 stops25h 40m
Multiple Airlines
Thu 5/79:20 am
SYD
- STL
3 stops49h 45m
Multiple Airlines
Deal found 2/14![Multiple Airlines logo]()
$1,204
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/44:05 pm
STL
- SYD
2 stops48h 15m
Air Canada
Thu 4/309:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,108
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/284:30 pm
STL
- SYD
2 stops45h 30m
United Airlines
Sun 3/82:00 pm
SYD
- STL
2 stops22h 45m
United Airlines
Deal found 2/17![United Airlines logo]()
$1,204
Last-minute flights from St. Louis to New South WalesDiscover last-minute flight deals from St. Louis to New South Wales. Data last updated February 18, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to New South Wales. Data last updated February 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/12:45 pm
STL
- SYD
2 stops25h 30m
United Airlines
Sat 3/711:50 am
SYD
- STL
1 stop21h 15m
United Airlines
Deal found 2/17![United Airlines logo]()
$1,245
This Air Canada deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:05 pm
STL
- SYD
2 stops48h 30m
Air Canada
Tue 3/1010:20 am
SYD
- STL
2 stops45h 09m
Air Canada
Deal found 2/17![Air Canada logo]()
$1,129
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:38 am
STL
- SYD
1 stop33h 22m
American Airlines
Tue 3/1011:20 am
SYD
- STL
1 stop28h 38m
American Airlines
Deal found 2/16![American Airlines logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1810:05 am
STL
- SYD
1 stop28h 55m
United Airlines
Wed 3/2512:10 pm
SYD
- STL
1 stop26h 15m
United Airlines
Deal found 2/18![United Airlines logo]()
$1,200
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:29 pm
STL
- SYD
2 stops26h 31m
American Airlines
Wed 3/2511:20 am
SYD
- STL
2 stops24h 09m
American Airlines
Deal found 2/16![American Airlines logo]()
$1,207
This oojo deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:50 pm
STL
- SYD
2 stops34h 00m
Qantas Airways
Tue 4/75:50 pm
SYD
- STL
1 stop21h 07m
Qantas Airways
Deal found 2/16![Qantas Airways logo]()
$910
This Orbitz deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:55 pm
STL
- SYD
2 stops46h 40m
Air Canada
Tue 4/79:20 am
SYD
- STL
2 stops26h 34m
Air Canada
Deal found 2/16![Air Canada logo]()
$1,206
This Expedia deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/284:05 pm
STL
- SYD
2 stops48h 15m
Air Canada
Tue 4/79:20 am
SYD
- STL
2 stops26h 34m
Air Canada
Deal found 2/14![Air Canada logo]()
$1,165
One-way flights from St. Louis to New South WalesSearch for one-way flight options from St. Louis to New South Wales. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
Search for one-way flight options from St. Louis to New South Wales. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
This Air Canada deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/97:30 am
STL
- SYD
2 stops32h 50m
Air Canada
Deal found 2/16![Air Canada logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:33 pm
STL
- SYD
3 stops51h 32m
Multiple Airlines
Deal found 2/16![Multiple Airlines logo]()
$647
This Air Canada deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:30 pm
STL
- SYD
2 stops48h 05m
Air Canada
Deal found 2/18![Air Canada logo]()
$673
This Qantas Airways deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:18 pm
STL
- SYD
2 stops23h 37m
Qantas Airways
Deal found 2/16![Qantas Airways logo]()
$684
This American Airlines deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:38 am
STL
- SYD
1 stop33h 22m
American Airlines
Deal found 2/18![American Airlines logo]()
$718
This American Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:36 am
STL
- SYD
1 stop33h 29m
American Airlines
Deal found 2/16![American Airlines logo]()
$719
This Turkish Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:41 am
STL
- SYD
3 stops42h 39m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$929
Find flight deals from St. Louis to New South Wales
Keep the following information in mind while searching for St. Louis to New South Wales flight deals. Data was last updated February 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $910 (oojo) |
One-way from | $610 (Air Canada) |
Popular in | December |
Cheapest in | August |
Average price | $1,348 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to New South Wales that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from St. Louis to New South Wales that are best for you.
Fly from
St. Louis
Fly to
New South Wales
Route
Depart
Return
Price
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 8/1
12:10 pm-7:20 am
2 stops52h 10m
Sydney Kingsford Smith
Sun 8/9
9:20 am-6:27 pm
2 stops48h 07m
$1,051
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 5/4
1:00 pm-7:20 am
3 stops51h 20m
Sydney Kingsford Smith
Mon 5/18
9:20 am-8:05 pm
2 stops25h 45m
$1,093
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 4/4
4:05 pm-7:20 am
2 stops48h 15m
Sydney Kingsford Smith
Thu 4/30
9:20 am-12:06 pm
2 stops41h 46m
$1,108
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 4/4
4:05 pm-7:20 am
1 stop48h 15m
Sydney Kingsford Smith
Thu 4/30
9:20 am-12:06 pm
1 stop41h 46m
$1,196
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 5/4
7:06 pm-6:55 am
1 stop20h 49m
Sydney Kingsford Smith
Mon 5/18
10:20 am-6:22 pm
1 stop23h 02m
$1,200
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 6/29
7:06 pm-6:55 am
1 stop20h 49m
Sydney Kingsford Smith
Sun 7/5
10:20 am-5:53 pm
1 stop22h 33m
$1,200
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Wed 3/18
4:13 pm-6:55 am
1 stop22h 42m
Sydney Kingsford Smith
Wed 3/25
6:05 am-3:28 pm
2 stops25h 23m
$1,204
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Wed 4/29
2:40 pm-7:20 am
2 stops25h 40m
Sydney Kingsford Smith
Thu 5/7
9:20 am-8:05 pm
3 stops49h 45m
$1,204
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 2/28
4:30 pm-7:00 am
2 stops45h 30m
Sydney Kingsford Smith
Sun 3/8
2:00 pm-7:45 pm
2 stops22h 45m
$1,204
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Tue 6/9
7:30 am-7:20 am
2 stops32h 50m
$610
Showing 1-10 of 16 results
Best time to book a flight from St. Louis to New South Wales
Have a flexible travel schedule? Discover the best time to fly to New South Wales from St. Louis with our price prediction graph.
STL-SYD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to New South Wales
STL-AUNSW
STL-SYD
What is the cheapest month to book a flight from St. Louis to New South Wales?
Currently, August is the cheapest month in which you can book a flight from St. Louis to New South Wales (average of $653). Flying from St. Louis to New South Wales in June is currently the most expensive (average of $1,254). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from St. Louis to New South Wales?
Reviews of airlines servicing New South Wales
Get insights into the airlines that provide service to New South Wales. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to New South Wales. Reviews last updated February 18, 2026.
Read through reviews of airlines operating flights from St. Louis to New South Wales, such as Fiji Airways, Qantas Airways, and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.5
Comfort
8.0
Entertainment
7.5
Crew
8.5
Boarding
8.1
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Overall
8.0
Food
7.5
Comfort
8.0
Entertainment
7.5
Crew
8.5
Boarding
8.1
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Overall
8.0
Food
7.5
Comfort
8.0
Entertainment
7.5
Crew
8.5
Boarding
8.1
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Overall
8.0
Food
7.5
Comfort
8.0
Entertainment
7.5
Crew
8.5
Boarding
8.1
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Overall
8.0
Food
7.5
Comfort
8.0
Entertainment
7.5
Crew
8.5
Boarding
8.1
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Overall
8.0
Food
7.5
Comfort
8.0
Entertainment
7.5
Crew
8.5
Boarding
8.1
Reviews
1 / 18
10.0
ExcellentAnonymous,Feb 2026
SFO - NAN
Related info for your journey
Find useful and relevant information for your journey from St. Louis to New South Wales. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for St. Louis to New South Wales
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to New South Wales by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to New South Wales by cabin class
Find flights from St. Louis to New South Wales, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and New South Wales flights
Browse other St. Louis and New South Wales flight options. Last updated on February 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from St. Louis to New South Wales
Discover the top 5 airlines that operate flights from St. Louis to New South Wales. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$608 | Average$1,250 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,132 | Average$1,222 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,145 | Average$1,366 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$1,211 | Average$1,512 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,233 | Average$1,497 | FlexibilityNo cancel fee | On-time71% |