$728+ Cheap flights from Australia to St. Louis (STL)
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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — STL
Apr 9 — Apr 161
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 March 10, 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 March 10, 2026.
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/209:45 am
MEL
- STL
1 stop29h 12m
American Airlines
Mon 4/272:37 pm
STL
- MEL
2 stops25h 08m
American Airlines
Deal found 3/6![American Airlines logo]()
$900
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/2510:30 am
MEL
- STL
2 stops22h 19m
United Airlines
Sun 3/296:05 pm
STL
- MEL
2 stops46h 25m
United Airlines
Deal found 3/5![United Airlines logo]()
$945
This American Airlines deal was found by Cheapflights users on 3/5. 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 5/279:10 am
SYD
- STL
2 stops22h 23m
American Airlines
Sun 5/319:08 am
STL
- SYD
2 stops30h 57m
American Airlines
Deal found 3/5![American Airlines logo]()
$1,110
This Expedia deal was found by Cheapflights users on 3/9. 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.
Wed 8/511:55 am
SYD
- STL
2 stops37h 12m
Air New Zealand
Sat 8/293:02 pm
STL
- SYD
2 stops26h 43m
Air New Zealand
Deal found 3/9![Air New Zealand logo]()
$1,117
This Bravofly deal was found by Cheapflights users on 3/9. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:45 am
MEL
- STL
1 stop29h 12m
Qantas Airways
Thu 4/306:21 am
STL
- MEL
1 stop33h 24m
Qantas Airways
Deal found 3/9![Qantas Airways logo]()
$1,119
This United Airlines deal was found by Cheapflights users on 3/5. 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 5/2710:20 am
SYD
- STL
1 stop22h 57m
United Airlines
Sun 5/317:23 pm
STL
- SYD
1 stop20h 32m
United Airlines
Deal found 3/5![United Airlines logo]()
$1,128
This Jettzy deal was found by Cheapflights users on 3/7. 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.
Tue 4/219:20 am
SYD
- STL
2 stops26h 34m
Air Canada
Tue 4/284:30 pm
STL
- SYD
2 stops23h 50m
Air Canada
Deal found 3/7![Air Canada logo]()
$1,170
This BYOjet deal was found by Cheapflights users on 3/9. 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.
Sat 8/89:55 am
SYD
- STL
2 stops25h 47m
Air New Zealand
Mon 8/318:52 am
STL
- SYD
2 stops32h 53m
Air New Zealand
Deal found 3/9![Air New Zealand logo]()
$1,175
This Trip.com deal was found by Cheapflights users on 3/9. 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.
Thu 4/231:30 pm
MEL
- STL
2 stops25h 27m
Multiple Airlines
Thu 4/306:21 am
STL
- MEL
2 stops38h 39m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,226
This Gotogate deal was found by Cheapflights users on 3/8. 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.
Sun 5/39:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Sun 5/177:05 am
STL
- SYD
2 stops57h 15m
Air Canada
Deal found 3/8![Air Canada logo]()
$1,248
This Air Canada deal was found by Cheapflights users on 3/9. 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 5/278:30 pm
MEL
- STL
3 stops38h 34m
Air Canada
Sun 5/317:05 am
STL
- MEL
3 stops37h 00m
Air Canada
Deal found 3/9![Air Canada logo]()
$1,253
This Air New Zealand deal was found by Cheapflights users on 3/9. 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.
Wed 8/511:55 am
SYD
- STL
3 stops27h 02m
Multiple Airlines
Sat 8/293:02 pm
STL
- SYD
2 stops26h 43m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,254
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 March 10, 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 March 10, 2026.
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/209:45 am
MEL
- STL
1 stop29h 12m
American Airlines
Mon 4/272:37 pm
STL
- MEL
2 stops25h 08m
American Airlines
Deal found 3/6![American Airlines logo]()
$900
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/2510:30 am
MEL
- STL
2 stops22h 19m
United Airlines
Sun 3/296:05 pm
STL
- MEL
2 stops46h 25m
United Airlines
Deal found 3/5![United Airlines logo]()
$945
This Jettzy deal was found by Cheapflights users on 3/7. 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.
Tue 4/219:20 am
SYD
- STL
2 stops26h 34m
Air Canada
Tue 4/284:30 pm
STL
- SYD
2 stops23h 50m
Air Canada
Deal found 3/7![Air Canada logo]()
$1,170
This Trip.com deal was found by Cheapflights users on 3/9. 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.
Thu 4/231:30 pm
MEL
- STL
2 stops25h 27m
Multiple Airlines
Thu 4/306:21 am
STL
- MEL
2 stops38h 39m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,226
This Expedia deal was found by Cheapflights users on 3/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:55 am
SYD
- STL
2 stops37h 12m
Air New Zealand
Mon 8/313:02 pm
STL
- SYD
2 stops26h 43m
Air New Zealand
Deal found 3/10![Air New Zealand logo]()
$1,358
This Qantas Airways deal was found by Cheapflights users on 3/5. 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.
Fri 8/76:30 am
DPO
- STL
2 stops31h 38m
Qantas Airways
Tue 8/117:46 pm
STL
- DPO
2 stops50h 24m
Qantas Airways
Deal found 3/5![Qantas Airways logo]()
$1,407
This Japan Airlines deal was found by Cheapflights users on 3/8. 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.
Wed 5/277:25 am
MEL
- STL
2 stops44h 50m
Japan Airlines
Sun 5/319:08 am
STL
- MEL
2 stops53h 37m
Japan Airlines
Deal found 3/8![Japan Airlines logo]()
$1,799
This American Airlines deal was found by Cheapflights users on 3/5. 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 5/279:10 am
SYD
- STL
1 stop29h 46m
American Airlines
Sun 5/312:37 pm
STL
- SYD
2 stops25h 28m
American Airlines
Deal found 3/5![American Airlines logo]()
$1,110
This United Airlines deal was found by Cheapflights users on 3/5. 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 5/2710:20 am
SYD
- STL
1 stop22h 57m
United Airlines
Sun 5/317:23 pm
STL
- SYD
1 stop20h 32m
United Airlines
Deal found 3/5![United Airlines logo]()
$1,128
This Gotogate deal was found by Cheapflights users on 3/8. 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.
Sun 5/39:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Sun 5/177:05 am
STL
- SYD
2 stops57h 15m
Air Canada
Deal found 3/8![Air Canada logo]()
$1,248
This Air Canada deal was found by Cheapflights users on 3/6. 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 4/208:50 pm
MEL
- STL
3 stops57h 35m
Multiple Airlines
Mon 4/274:05 pm
STL
- MEL
3 stops52h 15m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,365
This Gotogate deal was found by Cheapflights users on 3/9. 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.
Fri 4/249:20 am
SYD
- STL
2 stops45h 05m
Air Canada
Fri 5/12:35 pm
STL
- SYD
2 stops25h 45m
Air Canada
Deal found 3/9![Air Canada logo]()
$1,358
This Qantas Airways deal was found by Cheapflights users on 3/10. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/276:00 am
MEL
- STL
2 stops32h 56m
Qantas Airways
Wed 8/126:30 am
STL
- MEL
1 stop33h 15m
Qantas Airways
Deal found 3/10![Qantas Airways logo]()
$1,505
This Qantas Airways deal was found by Cheapflights users on 3/9. 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 8/85:50 pm
SYD
- STL
1 stop20h 18m
Qantas Airways
Mon 8/313:33 pm
STL
- SYD
2 stops25h 42m
Qantas Airways
Deal found 3/9![Qantas Airways logo]()
$1,510
This Air Canada deal was found by Cheapflights users on 3/6. 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 stops29h 37m
Air Canada
Sun 5/315:10 am
STL
- SYD
2 stops35h 10m
Air Canada
Deal found 3/6![Air Canada logo]()
$1,373
This Air New Zealand deal was found by Cheapflights users on 3/7. 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.
Wed 8/511:55 am
SYD
- STL
3 stops27h 02m
Multiple Airlines
Sat 8/291:36 pm
STL
- SYD
3 stops30h 04m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,559
This American Airlines deal was found by Cheapflights users on 3/6. 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 3/2812:00 pm
MEL
- STL
1 stop27h 58m
American Airlines
Sat 4/411:46 am
STL
- MEL
2 stops27h 59m
American Airlines
Deal found 3/6![American Airlines logo]()
$1,710
This Gurufare deal was found by Cheapflights users on 3/8. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:05 pm
DPO
- STL
3 stops44h 40m
Air New Zealand
Tue 8/118:52 am
STL
- DPO
3 stops44h 13m
Air New Zealand
Deal found 3/8![Air New Zealand logo]()
$1,894
This United Airlines deal was found by Cheapflights users on 3/8. 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 5/2710:55 am
MEL
- STL
1 stop22h 22m
United Airlines
Sun 5/317:23 pm
STL
- MEL
1 stop21h 52m
United Airlines
Deal found 3/8![United Airlines logo]()
$1,817
This oojo deal was found by Cheapflights users on 3/9. 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 3/2812:00 pm
MEL
- STL
1 stop27h 58m
Qantas Airways
Sat 4/47:03 am
STL
- MEL
1 stop30h 57m
Qantas Airways
Deal found 3/9![Qantas Airways logo]()
$1,791
Last-minute flights from Australia to St. LouisDiscover last-minute flight deals from Australia to St. Louis. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Australia to St. Louis. Data last updated March 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/2510:30 am
MEL
- STL
2 stops22h 19m
United Airlines
Sun 3/296:05 pm
STL
- MEL
2 stops46h 25m
United Airlines
Deal found 3/5![United Airlines logo]()
$945
This oojo deal was found by Cheapflights users on 3/6. 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 3/2812:00 pm
MEL
- STL
1 stop27h 58m
Qantas Airways
Sat 4/411:46 am
STL
- MEL
1 stop26h 14m
Qantas Airways
Deal found 3/6![Qantas Airways logo]()
$1,686
This American Airlines deal was found by Cheapflights users on 3/6. 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 3/2812:00 pm
MEL
- STL
1 stop27h 58m
American Airlines
Sat 4/411:46 am
STL
- MEL
2 stops27h 59m
American Airlines
Deal found 3/6![American Airlines logo]()
$1,710
This American Airlines deal was found by Cheapflights users on 3/6. 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 4/209:45 am
MEL
- STL
1 stop29h 12m
American Airlines
Mon 4/272:37 pm
STL
- MEL
2 stops25h 08m
American Airlines
Deal found 3/6![American Airlines logo]()
$900
This Air Canada deal was found by Cheapflights users on 3/6. 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 4/208:50 pm
MEL
- STL
3 stops57h 35m
Multiple Airlines
Mon 4/274:05 pm
STL
- MEL
3 stops52h 15m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,365
This Jettzy deal was found by Cheapflights users on 3/7. 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.
Tue 4/219:20 am
SYD
- STL
2 stops26h 34m
Air Canada
Tue 4/284:30 pm
STL
- SYD
2 stops23h 50m
Air Canada
Deal found 3/7![Air Canada logo]()
$1,170
This Bravofly deal was found by Cheapflights users on 3/7. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:10 am
SYD
- STL
1 stop29h 47m
Qantas Airways
Tue 4/286:21 am
STL
- SYD
1 stop33h 44m
Qantas Airways
Deal found 3/7![Qantas Airways logo]()
$1,668
This American Airlines deal was found by Cheapflights users on 3/7. 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 4/215:50 pm
SYD
- STL
1 stop21h 07m
American Airlines
Tue 4/284:30 pm
STL
- SYD
2 stops23h 35m
American Airlines
Deal found 3/7![American Airlines logo]()
$1,707
This Bravofly deal was found by Cheapflights users on 3/9. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:45 am
MEL
- STL
1 stop29h 12m
Qantas Airways
Thu 4/306:21 am
STL
- MEL
1 stop33h 24m
Qantas Airways
Deal found 3/9![Qantas Airways logo]()
$1,119
This Trip.com deal was found by Cheapflights users on 3/9. 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.
Thu 4/231:30 pm
MEL
- STL
2 stops25h 27m
Multiple Airlines
Thu 4/306:21 am
STL
- MEL
2 stops38h 39m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$1,226
This Gotogate deal was found by Cheapflights users on 3/9. 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.
Fri 4/249:20 am
SYD
- STL
2 stops45h 05m
Air Canada
Fri 5/12:35 pm
STL
- SYD
2 stops25h 45m
Air Canada
Deal found 3/9![Air Canada logo]()
$1,358
This Bravofly deal was found by Cheapflights users on 3/9. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:25 am
SYD
- STL
2 stops32h 32m
Qantas Airways
Fri 5/16:21 am
STL
- SYD
1 stop33h 44m
Qantas Airways
Deal found 3/9![Qantas Airways logo]()
$1,603
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 March 10, 2026.
Search for one-way flight options from Australia to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This American Airlines deal was found by Cheapflights users on 3/6. 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 6/89:10 am
SYD
- STL
2 stops24h 19m
American Airlines
Deal found 3/6![American Airlines logo]()
$728
This Trip.com deal was found by Cheapflights users on 3/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:55 am
SYD
- STL
3 stops40h 27m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$762
This Air Canada deal was found by Cheapflights users on 3/10. 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.
Mon 6/89:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Deal found 3/10![Air Canada logo]()
$792
This Air Canada deal was found by Cheapflights users on 3/7. 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 7/309:20 am
SYD
- STL
2 stops29h 37m
Air Canada
Deal found 3/7![Air Canada logo]()
$825
This oojo deal was found by Cheapflights users on 3/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/812:00 pm
SYD
- STL
1 stop19h 33m
Qantas Airways
Deal found 3/10![Qantas Airways logo]()
$922
This KAYAK deal was found by Cheapflights users on 3/7. 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.
Fri 6/2611:55 pm
MEL
- STL
2 stops33h 22m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,030
This United Airlines deal was found by Cheapflights users on 3/9. 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 6/2610:55 am
MEL
- STL
2 stops40h 12m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,038
This FlightHub deal was found by Cheapflights users on 3/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:30 pm
MEL
- STL
2 stops24h 26m
Qantas Airways
Deal found 3/10![Qantas Airways logo]()
$1,071
This Gurufare deal was found by Cheapflights users on 3/9. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/277:05 pm
MEL
- STL
2 stops43h 51m
Qantas Airways
Deal found 3/9![Qantas Airways logo]()
$1,108
This BusinessClass deal was found by Cheapflights users on 3/10. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2712:30 pm
MEL
- STL
2 stops26h 26m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$1,140
This United Airlines deal was found by Cheapflights users on 3/9. 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 6/277:00 am
MEL
- STL
3 stops47h 46m
United Airlines
Deal found 3/9![United Airlines logo]()
$1,211
This FlightHub deal was found by Cheapflights users on 3/7. 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.
Thu 7/309:05 pm
SYD
- STL
3 stops39h 11m
Turkish Airlines
Deal found 3/7![Turkish Airlines logo]()
$1,472
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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $900 (American Airlines) |
One-way from | $728 (American Airlines) |
Popular in | July |
Cheapest in | May |
Average price | $1,198 |
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 March 10, 2026.
Use the filters below to find and compare flights from Australia to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MelbourneSt. Louis
MEL - STL
MELSTL
Melbourne
Mon 4/20
9:45 am-11:57 pm
1 stop29h 12m
Lambert-St Louis
Mon 4/27
2:37 pm-6:45 am
2 stops25h 08m
$900
MelbourneSt. Louis
MEL - STL
MELSTL
Melbourne
Wed 3/25
10:30 am-4:49 pm
2 stops22h 19m
Lambert-St Louis
Sun 3/29
6:05 pm-8:30 am
2 stops46h 25m
$945
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Wed 5/27
9:10 am-11:56 pm
1 stop29h 46m
Lambert-St Louis
Sun 5/31
2:37 pm-7:05 am
2 stops25h 28m
$1,110
Quickest round-trip
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Wed 5/27
10:20 am-6:17 pm
1 stop22h 57m
Lambert-St Louis
Sun 5/31
7:23 pm-6:55 am
1 stop20h 32m
$1,128
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Tue 4/21
9:20 am-8:54 pm
2 stops26h 34m
Lambert-St Louis
Tue 4/28
4:30 pm-7:20 am
2 stops23h 50m
$1,170
MelbourneSt. Louis
MEL - STL
MELSTL
Melbourne
Thu 4/23
1:30 pm-11:57 pm
2 stops25h 27m
Lambert-St Louis
Thu 4/30
6:21 am-12:00 pm
2 stops38h 39m
$1,226
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Sun 5/3
9:20 am-12:06 pm
2 stops41h 46m
Lambert-St Louis
Sun 5/17
7:05 am-7:20 am
2 stops57h 15m
$1,248
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Fri 8/7
11:55 am-10:07 am
2 stops37h 12m
Lambert-St Louis
Mon 8/31
3:02 pm-8:45 am
2 stops26h 43m
$1,358
SydneySt. Louis
SYD - STL
SYDSTL
Sydney Kingsford Smith
Fri 4/24
9:20 am-3:25 pm
2 stops45h 05m
Lambert-St Louis
Fri 5/1
2:35 pm-7:20 am
2 stops25h 45m
$1,358
MelbourneSt. Louis
MEL - STL
MELSTL
Melbourne
Mon 4/20
8:50 pm-3:25 pm
3 stops57h 35m
Lambert-St Louis
Mon 4/27
4:05 pm-11:20 am
3 stops52h 15m
$1,365
Showing 1-10 of 33 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
DPO-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
DPO-STL
What is the cheapest month to book a flight from Australia to St. Louis?
Currently, November is the cheapest month in which you can book a flight from Australia to St. Louis (average of $741). Flying from Australia to St. Louis in April is currently the most expensive (average of $1,131). 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 March 10, 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
Food
6.6
Comfort
7.3
Crew
8.1
Overall
7.4
Boarding
7.7
Reviews
1 / 20
6.0
GoodGerry,Jan 2026
YVR - DEN
Entertainment
7.1
Food
6.6
Comfort
7.3
Crew
8.1
Overall
7.4
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
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Alternative routes for Australia to St. Louis
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Australia and St. Louis flights
Browse other Australia and St. Louis flight options. Last updated on March 10, 2026.
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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 March 10, 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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$822 | Average$1,347 | FlexibilityNo cancel fee | On-time69% |