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New South Wales

$570+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$940
(oojo)

One-way from

$570
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$1,460
Provider with most accurate pricing for Lambert-St Louis-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Sydney Kingsford Smith flights.
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From Lambert-St Louis to New South Wales
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One-way flight from Lambert-St Louis to New South Wales
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Highest demand for flights based on searches. 2% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from St. Louis to New South Wales

Cheapest flights from St. Louis to New South Wales
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 January 14, 2026.

This oojo deal was found by Cheapflights users on 1/13. 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.
Sat 2/146:38 am
STL
-
SYD
2 stops55h 57m
Qantas Airways
Sat 2/2111:20 am
SYD
-
STL
1 stop29h 39m
Qantas Airways
Deal found 1/13$940
This oojo deal was found by Cheapflights users on 1/13. 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 2/27:04 am
STL
-
SYD
1 stop32h 56m
Qantas Airways
Mon 2/165:50 pm
SYD
-
STL
2 stops38h 38m
Qantas Airways
Deal found 1/13$941
This Kiwi.com deal was found by Cheapflights users on 1/12. 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 2/37:04 am
STL
-
SYD
1 stop32h 56m
Qantas Airways
Tue 2/107:15 pm
SYD
-
STL
2 stops36h 28m
Qantas Airways
Deal found 1/12$991
This Priceline deal was found by Cheapflights users on 1/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/166:50 pm
STL
-
SYD
2 stops34h 00m
Qantas Airways
Mon 3/2311:20 am
SYD
-
STL
1 stop28h 38m
Qantas Airways
Deal found 1/12$1,007
This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/317:04 am
STL
-
SYD
1 stop32h 56m
Qantas Airways
Thu 2/52:35 pm
SYD
-
STL
2 stops42h 39m
Qantas Airways
Deal found 1/13$1,016
This FlightHub deal was found by Cheapflights users on 1/13. 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.
Sat 3/76:18 pm
STL
-
SYD
2 stops45h 52m
Qantas Airways
Sat 3/1411:20 am
SYD
-
STL
1 stop28h 38m
Qantas Airways
Deal found 1/13$1,020
This oojo deal was found by Cheapflights users on 1/12. 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 1/195:04 pm
STL
-
SYD
2 stops25h 51m
Qantas Airways
Sat 1/3111:20 am
SYD
-
STL
1 stop29h 39m
Qantas Airways
Deal found 1/12$1,064
This oojo deal was found by Cheapflights users on 1/13. 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.
Sat 3/146:38 am
STL
-
SYD
1 stop34h 22m
Qantas Airways
Mon 3/235:50 pm
SYD
-
STL
2 stops37h 38m
Qantas Airways
Deal found 1/13$1,086
This Air Canada deal was found by Cheapflights users on 1/14. 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 9/231:30 pm
STL
-
SYD
2 stops26h 50m
Air Canada
Wed 10/79:20 am
SYD
-
STL
2 stops48h 57m
Air Canada
Deal found 1/14$1,135

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 January 14, 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

Sun 3/15

6:38 am-9:00 am

1 stop34h 22m

Sydney Kingsford Smith

Tue 3/24

5:50 pm-3:28 pm

2 stops37h 38m

$940

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 2/2

7:04 am-9:00 am

1 stop32h 56m

Sydney Kingsford Smith

Mon 2/16

5:50 pm-3:28 pm

2 stops38h 38m

$941

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Mon 3/16

6:50 pm-8:50 pm

2 stops34h 00m

Sydney Kingsford Smith

Mon 3/23

11:20 am-11:58 pm

1 stop28h 38m

$1,007

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 3/14

6:38 am-9:00 am

1 stop34h 22m

Sydney Kingsford Smith

Mon 3/23

5:50 pm-3:28 pm

2 stops37h 38m

$1,112

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Fri 2/27

2:45 pm-9:35 am

2 stops25h 50m

Sydney Kingsford Smith

Fri 3/6

11:20 am-4:59 pm

2 stops22h 39m

$1,235

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 3/15

4:05 pm-8:35 am

2 stops48h 30m

Sydney Kingsford Smith

Tue 3/24

10:20 am-3:29 pm

2 stops45h 09m

$1,236

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 2/14

4:30 pm-9:35 am

2 stops24h 05m

Sydney Kingsford Smith

Sat 2/21

11:20 am-8:26 pm

2 stops26h 06m

$1,239

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sat 4/4

6:38 am-10:35 am

2 stops35h 57m

Sydney Kingsford Smith

Sat 4/11

12:00 pm-7:30 pm

1 stop22h 30m

$1,249

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Tue 2/3

7:04 am-7:25 am

1 stop31h 21m

Sydney Kingsford Smith

Tue 2/10

11:20 am-11:59 pm

1 stop29h 39m

$1,259

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Sun 3/15

4:47 pm-7:00 am

1 stop22h 13m

Sydney Kingsford Smith

Tue 3/24

2:00 pm-10:25 pm

1 stop24h 25m

$1,275

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/11

Showing 1-10 of 14 results
1
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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, August is the cheapest month in which you can book a flight from St. Louis to New South Wales (average of $671). Flying from St. Louis to New South Wales in June is currently the most expensive (average of $1,257). 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.

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 January 14, 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.
Fiji Airways
8.0
Very good
216 reviews

Food

7.5

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.0
Very good
216 reviews
Fiji Airways
8.0
Very good
216 reviews

Food

7.5

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
970 reviews
Fiji Airways
8.0
Very good
216 reviews

Food

7.5

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
United Airlines
7.4
Good
9,156 reviews
Fiji Airways
8.0
Very good
216 reviews

Food

7.5

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
American Airlines
7.2
Good
11,118 reviews
Fiji Airways
8.0
Very good
216 reviews

Food

7.5

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Air Canada
7.1
Good
10,619 reviews
Fiji Airways
8.0
Very good
216 reviews

Food

7.5

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

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.

  • What airport do you fly from for flights from St. Louis to New South Wales?

    Located just 12.7 mi from the city center, Lambert-St Louis (STL) is the airport most travelers will use when flying to New South Wales from St. Louis.

  • How long is the flight from St. Louis to New South Wales?

    Departing from St. Louis to New South Wales will take you 34h 22m. St. Louis and New South Wales are separated by a distance of 9054 mi.

  • Can I find deals for flights from St. Louis to New South Wales that include hotel bookings?

    Yes. In addition to deals on St. Louis to New South Wales flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to New South Wales?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to New South Wales.

  • Can I find deals for business class flights from St. Louis to New South Wales?

    Yes. Cheapflights offers flight deals from St. Louis to New South Wales by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $671). Flying from St. Louis to New South Wales in June is currently the most expensive (average of $1,257). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$897Average$1,260FlexibilityNo cancel feeOn-time67%
Fiji AirwaysCheapest$1,132Average$1,222FlexibilityNo cancel feeOn-time74%
Qantas AirwaysCheapest$1,207Average$1,450FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,314Average$1,511FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$1,340Average$1,495FlexibilityNo cancel feeOn-time71%

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