$1,098+ Cheap flights from Australia to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — STL
May 15 — May 221
Round-trip
1 adult, Economy
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Find cheap flights from Australia to St. Louis 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 Australia to St. Louis
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Cheapest flights from Australia to St. LouisExplore the most affordable flight options available from Australia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
Explore the most affordable flight options available from Australia to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2026.
This Air Canada deal was found by Cheapflights users on 4/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
MEL
- STL
3 stops45h 06m
Air Canada
Tue 6/22:15 pm
STL
- MEL
3 stops30h 20m
Air Canada
Deal found 4/13![Air Canada logo]()
$1,098
This BYOjet deal was found by Cheapflights users on 4/12. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:00 am
MEL
- STL
3 stops29h 09m
Air Canada
Fri 5/227:05 am
STL
- MEL
3 stops37h 30m
Air Canada
Deal found 4/12![Air Canada logo]()
$1,129
This Gotogate deal was found by Cheapflights users on 4/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:30 pm
MEL
- STL
3 stops54h 36m
Air Canada
Tue 5/197:05 am
STL
- MEL
3 stops37h 30m
Air Canada
Deal found 4/14![Air Canada logo]()
$1,133
This American Airlines deal was found by Cheapflights users on 4/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:45 am
MEL
- STL
1 stop29h 14m
American Airlines
Tue 5/1912:27 pm
STL
- MEL
2 stops27h 18m
American Airlines
Deal found 4/14![American Airlines logo]()
$1,144
This American Airlines deal was found by Cheapflights users on 4/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:45 am
MEL
- STL
1 stop29h 14m
American Airlines
Sun 5/176:21 am
STL
- MEL
1 stop33h 24m
American Airlines
Deal found 4/12![American Airlines logo]()
$1,145
This United Airlines deal was found by Cheapflights users on 4/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:55 am
MEL
- STL
2 stops24h 48m
United Airlines
Fri 5/221:13 pm
STL
- MEL
2 stops27h 17m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,156
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:00 am
MEL
- STL
2 stops24h 03m
Delta
Sun 5/173:11 pm
STL
- MEL
2 stops49h 39m
Delta
Deal found 4/12![Delta logo]()
$1,164
This TravelUp deal was found by Cheapflights users on 4/14. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:55 am
MEL
- STL
2 stops25h 18m
Multiple Airlines
Tue 5/1910:25 am
STL
- MEL
2 stops30h 50m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,169
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:20 am
SYD
- STL
2 stops26h 05m
Air Canada
Wed 6/31:05 pm
STL
- SYD
2 stops51h 15m
Air Canada
Deal found 4/12![Air Canada logo]()
$1,209
This Air Canada deal was found by Cheapflights users on 4/11. 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 5/209:20 am
SYD
- STL
2 stops41h 46m
Multiple Airlines
Thu 5/284:48 pm
STL
- SYD
2 stops23h 32m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$1,211
This Trip.com deal was found by Cheapflights users on 4/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:45 am
MEL
- STL
1 stop29h 14m
Qantas Airways
Tue 5/196:21 am
STL
- MEL
1 stop33h 24m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,214
This Jettzy deal was found by Cheapflights users on 4/13. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:20 am
SYD
- STL
2 stops26h 23m
Air Canada
Thu 6/114:48 pm
STL
- SYD
2 stops23h 32m
Air Canada
Deal found 4/13![Air Canada logo]()
$1,245
Best flights from Australia to St. LouisDiscover carefully curated flight deals from Australia to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
Discover carefully curated flight deals from Australia to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 15, 2026.
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
MEL
- STL
3 stops45h 06m
Air Canada
Tue 6/28:40 am
STL
- MEL
3 stops35h 25m
Air Canada
Deal found 4/12![Air Canada logo]()
$1,098
This United Airlines deal was found by Cheapflights users on 4/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:55 am
MEL
- STL
2 stops24h 48m
United Airlines
Fri 5/227:23 pm
STL
- MEL
1 stop21h 52m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,156
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:00 am
MEL
- STL
2 stops24h 03m
Delta
Sun 5/173:11 pm
STL
- MEL
2 stops49h 39m
Delta
Deal found 4/12![Delta logo]()
$1,164
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:20 am
SYD
- STL
2 stops41h 46m
Multiple Airlines
Thu 5/284:48 pm
STL
- SYD
2 stops23h 32m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,257
This Qantas Airways deal was found by Cheapflights users on 4/12. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:30 pm
LST
- STL
2 stops49h 26m
Qantas Airways
Sat 6/66:35 am
STL
- LST
2 stops46h 35m
Qantas Airways
Deal found 4/12![Qantas Airways logo]()
$2,331
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:20 am
SYD
- STL
3 stops50h 05m
Air Canada
Wed 6/31:05 pm
STL
- SYD
2 stops51h 15m
Air Canada
Deal found 4/12![Air Canada logo]()
$1,217
This Air Canada deal was found by Cheapflights users on 4/11. 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 5/209:20 am
SYD
- STL
2 stops26h 05m
Air Canada
Thu 5/281:05 pm
STL
- SYD
3 stops51h 15m
Air Canada
Deal found 4/11![Air Canada logo]()
$1,265
This United Airlines deal was found by Cheapflights users on 4/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1310:20 am
SYD
- STL
1 stop23h 04m
United Airlines
Sun 9/61:18 pm
STL
- SYD
2 stops26h 42m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,480
This Air Canada deal was found by Cheapflights users on 4/10. 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 5/79:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Mon 5/115:59 pm
STL
- SYD
2 stops46h 21m
Air Canada
Deal found 4/10![Air Canada logo]()
$1,316
This Air New Zealand deal was found by Cheapflights users on 4/13. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:55 am
SYD
- STL
3 stops26h 55m
Multiple Airlines
Sun 9/61:36 pm
STL
- SYD
3 stops28h 09m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,658
This United Airlines deal was found by Cheapflights users on 4/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:20 am
SYD
- STL
1 stop22h 57m
United Airlines
Sat 8/291:18 pm
STL
- SYD
2 stops26h 37m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,531
This United Airlines deal was found by Cheapflights users on 4/10. 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 5/2010:20 am
SYD
- STL
1 stop23h 02m
United Airlines
Thu 5/287:23 pm
STL
- SYD
1 stop20h 32m
United Airlines
Deal found 4/10![United Airlines logo]()
$1,532
This Qantas Airways deal was found by Cheapflights users on 4/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:25 am
SYD
- STL
3 stops27h 49m
Multiple Airlines
Wed 9/95:11 pm
STL
- SYD
2 stops23h 49m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,757
This Qantas Airways deal was found by Cheapflights users on 4/13. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:00 am
MEL
- STL
3 stops29h 51m
Multiple Airlines
Sun 9/276:51 pm
STL
- MEL
2 stops24h 29m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,781
This United Airlines deal was found by Cheapflights users on 4/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/710:55 am
MEL
- STL
2 stops27h 55m
United Airlines
Sun 9/277:06 pm
STL
- MEL
1 stop22h 09m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,720
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 7/910:20 am
SYD
- STL
1 stop22h 57m
United Airlines
Tue 7/217:23 pm
STL
- SYD
1 stop20h 32m
United Airlines
Deal found 4/14![United Airlines logo]()
$1,914
This United Airlines deal was found by Cheapflights users on 4/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:10 am
LST
- STL
3 stops48h 36m
United Airlines
Sat 6/67:23 pm
STL
- LST
2 stops29h 42m
United Airlines
Deal found 4/13![United Airlines logo]()
$2,478
Last-minute flights from Australia to St. LouisDiscover last-minute flight deals from Australia to St. Louis. Data last updated April 15, 2026 and is based on user searches.
Discover last-minute flight deals from Australia to St. Louis. Data last updated April 15, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:45 am
MEL
- STL
1 stop29h 14m
American Airlines
Sun 5/176:21 am
STL
- MEL
1 stop33h 24m
American Airlines
Deal found 4/12![American Airlines logo]()
$1,145
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:00 am
MEL
- STL
2 stops24h 03m
Delta
Sun 5/173:11 pm
STL
- MEL
2 stops49h 39m
Delta
Deal found 4/12![Delta logo]()
$1,164
This Gotogate deal was found by Cheapflights users on 4/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:30 pm
MEL
- STL
3 stops54h 36m
Air Canada
Tue 5/197:05 am
STL
- MEL
3 stops37h 30m
Air Canada
Deal found 4/14![Air Canada logo]()
$1,133
This American Airlines deal was found by Cheapflights users on 4/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:45 am
MEL
- STL
1 stop29h 14m
American Airlines
Tue 5/1912:27 pm
STL
- MEL
2 stops27h 18m
American Airlines
Deal found 4/14![American Airlines logo]()
$1,144
This TravelUp deal was found by Cheapflights users on 4/14. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:55 am
MEL
- STL
2 stops25h 18m
Multiple Airlines
Tue 5/1910:25 am
STL
- MEL
2 stops30h 50m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,169
This Trip.com deal was found by Cheapflights users on 4/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:45 am
MEL
- STL
1 stop29h 14m
Qantas Airways
Tue 5/196:21 am
STL
- MEL
1 stop33h 24m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,214
This BYOjet deal was found by Cheapflights users on 4/12. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:00 am
MEL
- STL
3 stops29h 09m
Air Canada
Fri 5/227:05 am
STL
- MEL
3 stops37h 30m
Air Canada
Deal found 4/12![Air Canada logo]()
$1,129
This United Airlines deal was found by Cheapflights users on 4/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1510:55 am
MEL
- STL
1 stop22h 27m
United Airlines
Fri 5/227:23 pm
STL
- MEL
1 stop21h 52m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,156
This Air Canada deal was found by Cheapflights users on 4/11. 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 5/209:20 am
SYD
- STL
2 stops41h 46m
Multiple Airlines
Thu 5/284:48 pm
STL
- SYD
2 stops23h 32m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$1,211
This Jettzy deal was found by Cheapflights users on 4/13. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:20 am
SYD
- STL
2 stops26h 23m
Air Canada
Thu 6/114:48 pm
STL
- SYD
2 stops23h 32m
Air Canada
Deal found 4/13![Air Canada logo]()
$1,245
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:20 am
SYD
- STL
2 stops26h 05m
Air Canada
Wed 6/31:05 pm
STL
- SYD
2 stops51h 15m
Air Canada
Deal found 4/12![Air Canada logo]()
$1,209
This Air Canada deal was found by Cheapflights users on 4/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
MEL
- STL
3 stops45h 06m
Air Canada
Tue 6/22:15 pm
STL
- MEL
3 stops30h 20m
Air Canada
Deal found 4/13![Air Canada logo]()
$1,098
One-way flights from Australia to St. LouisSearch for one-way flight options from Australia to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
Search for one-way flight options from Australia to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 15, 2026.
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2610:00 am
MEL
- STL
2 stops28h 23m
Delta
Deal found 4/13![Delta logo]()
$1,271
This Japan Airlines deal was found by Cheapflights users on 4/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:25 am
MEL
- STL
2 stops45h 38m
Japan Airlines
Deal found 4/11![Japan Airlines logo]()
$1,313
This Japan Airlines deal was found by Cheapflights users on 4/12. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:25 am
MEL
- STL
2 stops40h 26m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,352
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:00 am
MEL
- STL
2 stops31h 56m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,367
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Sat 6/279:45 am
MEL
- STL
1 stop29h 11m
American Airlines
Deal found 4/15![American Airlines logo]()
$1,451
This FlightHub deal was found by Cheapflights users on 4/13. 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.
Fri 6/266:00 am
MEL
- STL
3 stops45h 21m
Air Canada
Deal found 4/13![Air Canada logo]()
$1,469
Find flight deals from Australia to St. Louis
Keep the following information in mind while searching for Australia to St. Louis flight deals. Data was last updated April 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,098 (Air Canada) |
Popular in | July |
Cheapest in | September |
Average price | $1,640 |
Cheapflights Fare Finder
Customize your flight search to find flights from Australia to St. Louis 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 April 15, 2026.
Use the filters below to find and compare flights from Australia to St. Louis that are best for you.
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Route
Depart
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Cheapest round-trip
MelbourneSt. Louis
MEL - STL
MELSTL
Melbourne
Fri 5/29
6:00 am-12:06 pm
3 stops45h 06m
Lambert-St Louis
Tue 6/2
8:40 am-11:05 am
3 stops35h 25m
$1,098
MelbourneSt. Louis
MEL - STL
MELSTL
Melbourne
Fri 5/15
10:55 am-8:43 pm
2 stops24h 48m
Lambert-St Louis
Fri 5/22
7:23 pm-8:15 am
1 stop21h 52m
$1,156
MelbourneSt. Louis
MEL - STL
MELSTL
Melbourne
Sun 5/10
10:00 am-7:03 pm
2 stops24h 03m
Lambert-St Louis
Sun 5/17
3:11 pm-7:50 am
2 stops49h 39m
$1,164
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Wed 5/27
9:20 am-8:25 pm
3 stops50h 05m
Lambert-St Louis
Wed 6/3
1:05 pm-7:20 am
2 stops51h 15m
$1,217
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Wed 5/20
9:20 am-12:06 pm
2 stops41h 46m
Lambert-St Louis
Thu 5/28
4:48 pm-7:20 am
2 stops23h 32m
$1,257
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Wed 5/20
9:20 am-8:25 pm
2 stops26h 05m
Lambert-St Louis
Thu 5/28
1:05 pm-7:20 am
3 stops51h 15m
$1,265
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Thu 5/7
9:20 am-12:06 pm
2 stops41h 46m
Lambert-St Louis
Mon 5/11
5:59 pm-7:20 am
2 stops46h 21m
$1,316
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Thu 8/13
10:20 am-6:24 pm
1 stop23h 04m
Lambert-St Louis
Sun 9/6
1:18 pm-7:00 am
2 stops26h 42m
$1,480
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Wed 8/5
10:20 am-6:17 pm
1 stop22h 57m
Lambert-St Louis
Sat 8/29
1:18 pm-6:55 am
2 stops26h 37m
$1,531
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Wed 5/20
10:20 am-6:22 pm
1 stop23h 02m
Lambert-St Louis
Thu 5/28
7:23 pm-6:55 am
1 stop20h 32m
$1,532
Showing 1-10 of 21 resultsSorted by cheapest first
Best time to book a flight from Australia to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Australia with our price prediction graph.
MEL-STL
SYD-STL
LST-STL
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 Australia to St. Louis
AU0-STL
MEL-STL
SYD-STL
LST-STL
What is the cheapest month to book a flight from Australia to St. Louis?
Currently, May is the cheapest month in which you can book a flight from Australia to St. Louis (average of $649). Flying from Australia to St. Louis in April is currently the most expensive (average of $1,141). 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 St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated April 15, 2026.
Peruse reviews from past customers who have flown with United Airlines from Australia to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.1
Comfort
7.3
Overall
7.4
Food
6.6
Boarding
7.7
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Entertainment
7.1
Crew
8.1
Comfort
7.3
Overall
7.4
Food
6.6
Boarding
7.7
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Related info for your journey
Find useful and relevant information for your journey from Australia to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different options on Cheapflights for your next trip
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St. Louis flight routes
Alternative routes for Australia to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Australia to St. Louis by cabin class
Find flights from Australia to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Australia and St. Louis flights
Browse other Australia and St. Louis flight options. Last updated on April 15, 2026.
Popular flight searches
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 15, 2026.
Top airline flying from Australia to St. Louis
Discover the top airline that operate flights from Australia to St. Louis. 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 April 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$822 | Average$1,483 | FlexibilityNo cancel fee | On-time69% |