$582+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Aug 25 — Sep 11
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
Keep the following information in mind while searching for St. Louis to New South Wales flight deals. Data was last updated August 20, 2025.
Round-trip from | $990 (oojo) |
|---|---|
One-way from | $582 (Kiwi.com) |
Popular in | December |
Cheapest in | August |
Average price | $1,257 |
Find flight deals from St. Louis to New South Wales
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 August 20, 2025.
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 August 20, 2025.
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:00 amSTL - SYD
2 stops34h 55mQantas Airways
Fri 11/212:20 pmSYD - STL
1 stop19h 20mQantas Airways
Deal found 8/18![Qantas Airways logo]()
$1,079
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/284:07 pmSTL - SYD
1 stop21h 48mQantas Airways
Sun 12/147:20 amSYD - STL
2 stops21h 20mQantas Airways
Deal found 8/19![Qantas Airways logo]()
$1,092
This oojo deal was found by Cheapflights users on 8/18. 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 11/57:00 amSTL - SYD
2 stops33h 50mQantas Airways
Sun 11/232:20 pmSYD - STL
1 stop19h 20mQantas Airways
Deal found 8/18![Qantas Airways logo]()
$1,106
This Gotogate deal was found by Cheapflights users on 8/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:30 pmSTL - SYD
2 stops26h 50mAir Canada
Fri 9/129:20 amSYD - STL
2 stops49h 37mAir Canada
Deal found 8/19![Air Canada logo]()
$1,115
This Fareboom deal was found by Cheapflights users on 8/19. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:20 amSTL - SYD
2 stops28h 25mAir New Zealand
Sun 11/2311:45 amSYD - STL
2 stops24h 02mAir New Zealand
Deal found 8/19![Air New Zealand logo]()
$1,135
This Justfly.com deal was found by Cheapflights users on 8/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:39 amSTL - SYD
1 stop34h 21mQantas Airways
Sat 11/157:15 pmSYD - STL
2 stops38h 53mQantas Airways
Deal found 8/20![Qantas Airways logo]()
$1,165
This Air Canada deal was found by Cheapflights users on 8/18. 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 9/14:00 pmSTL - SYD
2 stops48h 20mAir Canada
Sun 9/149:20 amSYD - STL
2 stops44h 58mAir Canada
Deal found 8/18![Air Canada logo]()
$1,184
This Air Canada deal was found by Cheapflights users on 8/17. 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 8/311:30 pmSTL - SYD
2 stops26h 50mAir Canada
Wed 9/39:20 amSYD - STL
2 stops44h 58mAir Canada
Deal found 8/17![Air Canada logo]()
$1,188
This Air Canada deal was found by Cheapflights users on 8/20. 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 9/101:30 pmSTL - SYD
3 stops50h 50mAir Canada
Wed 9/249:20 amSYD - STL
2 stops49h 37mAir Canada
Deal found 8/20![Air Canada logo]()
$1,199
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 August 20, 2025.
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
Wed 2/11
6:00 am-5:40 pm
2 stops42h 40m
Sydney Kingsford Smith
Sat 2/28
11:15 am-11:08 pm
1 stop28h 53m
$990
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 1/26
6:00 am-9:00 am
1 stop34h 00m
Sydney Kingsford Smith
Mon 2/9
7:15 pm-4:14 pm
2 stops37h 59m
$1,031
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Mon 11/10
7:00 am-10:55 am
2 stops34h 55m
Sydney Kingsford Smith
Fri 11/21
2:20 pm-4:40 pm
1 stop19h 20m
$1,079
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Fri 11/28
4:07 pm-6:55 am
1 stop21h 48m
Sydney Kingsford Smith
Sun 12/14
6:05 am-4:07 pm
2 stops27h 02m
$1,092
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sun 2/8
4:07 pm-6:55 am
1 stop21h 48m
Sydney Kingsford Smith
Sat 2/14
6:35 pm-1:58 pm
2 stops36h 23m
$1,094
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Wed 11/5
7:00 am-9:50 am
2 stops33h 50m
Sydney Kingsford Smith
Sun 11/23
2:20 pm-4:40 pm
1 stop19h 20m
$1,106
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Wed 11/5
7:00 am-9:20 am
2 stops33h 20m
Sydney Kingsford Smith
Wed 11/19
2:20 pm-7:30 pm
1 stop22h 10m
$1,106
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 9/13
6:00 am-7:30 am
2 stops34h 30m
$582
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Sat 9/13
9:44 am-6:55 am
1 stop30h 11m
$733
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.
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
What is the cheapest month to book a flight from St. Louis to New South Wales?
Currently, February is the cheapest month in which you can book a flight from St. Louis to New South Wales (average of $1,030). Flying from St. Louis to New South Wales in December is currently the most expensive (average of $1,620). 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.
What is the cheapest time of day to fly from STL to NSW?
Find hourly flight availability from St. Louis to New South Wales. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to New South Wales as you normally would.
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 August 20, 2025.
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
Comfort
8.0
Entertainment
7.4
Crew
8.5
Food
7.5
Boarding
8.1
Reviews
1 / 16
6.0
GoodChristopher,Jun 2025
LAX - NAN
Overall
8.0
Comfort
8.0
Entertainment
7.4
Crew
8.5
Food
7.5
Boarding
8.1
Reviews
1 / 16
6.0
GoodChristopher,Jun 2025
LAX - NAN
Overall
8.0
Comfort
8.0
Entertainment
7.4
Crew
8.5
Food
7.5
Boarding
8.1
Reviews
1 / 16
6.0
GoodChristopher,Jun 2025
LAX - NAN
Overall
8.0
Comfort
8.0
Entertainment
7.4
Crew
8.5
Food
7.5
Boarding
8.1
Reviews
1 / 16
6.0
GoodChristopher,Jun 2025
LAX - NAN
Overall
8.0
Comfort
8.0
Entertainment
7.4
Crew
8.5
Food
7.5
Boarding
8.1
Reviews
1 / 16
6.0
GoodChristopher,Jun 2025
LAX - NAN
Overall
8.0
Comfort
8.0
Entertainment
7.4
Crew
8.5
Food
7.5
Boarding
8.1
Reviews
1 / 16
6.0
GoodChristopher,Jun 2025
LAX - 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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Alternative routes for St. Louis to New South Wales
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from St. Louis to New South Wales
Discover the top 6 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 August 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$887 | Average$1,222 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$897 | Average$1,339 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$1,173 | Average$1,873 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,209 | Average$1,509 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,242 | Average$1,450 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,260 | Average$1,478 | FlexibilityNo cancel fee | On-time74% |