$536+ Cheap flights from Missouri to Australia
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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Apr 20 — Apr 271
Round-trip
1 adult, Economy
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Cheapest flights from Missouri to AustraliaExplore the most affordable flight options available from Missouri to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.
Explore the most affordable flight options available from Missouri to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.
This Air Canada deal was found by Cheapflights users on 3/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/41:05 pm
STL
- BNE
2 stops51h 00m
Air Canada
Mon 5/1110:00 am
BNE
- STL
2 stops49h 25m
Air Canada
Deal found 3/19![Air Canada logo]()
$965
This Air Canada deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:24 pm
MCI
- BNE
2 stops22h 41m
Multiple Airlines
Thu 6/410:15 am
BNE
- MCI
2 stops21h 07m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$980
This Expedia deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:05 pm
STL
- BNE
2 stops48h 00m
Air Canada
Thu 5/710:00 am
BNE
- STL
2 stops25h 25m
Air Canada
Deal found 3/16![Air Canada logo]()
$998
This Travelocity deal was found by Cheapflights users on 3/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:00 am
MCI
- BNE
2 stops34h 05m
Air Canada
Mon 6/810:00 am
BNE
- MCI
2 stops28h 25m
Air Canada
Deal found 3/17![Air Canada logo]()
$999
This Air Canada deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:00 pm
STL
- BNE
2 stops51h 05m
Air Canada
Fri 5/810:00 am
BNE
- STL
2 stops25h 25m
Air Canada
Deal found 3/16![Air Canada logo]()
$1,002
This Air Canada deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:05 pm
STL
- BNE
3 stops53h 00m
Multiple Airlines
Thu 5/710:00 am
BNE
- STL
2 stops25h 25m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$1,026
This lastminute.com deal was found by Cheapflights users on 3/18. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:11 pm
STL
- MEL
2 stops34h 09m
Multiple Airlines
Sat 5/97:30 am
MEL
- STL
2 stops30h 29m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$1,045
This Air Canada deal was found by Cheapflights users on 3/18. 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.
Sat 5/21:05 pm
STL
- BNE
2 stops51h 00m
Air Canada
Sat 5/97:05 pm
BNE
- STL
3 stops56h 01m
Air Canada
Deal found 3/18![Air Canada logo]()
$1,058
This Orbitz deal was found by Cheapflights users on 3/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:49 am
MCI
- BNE
2 stops31h 16m
Air Canada
Wed 5/2010:00 am
BNE
- MCI
2 stops28h 59m
Air Canada
Deal found 3/17![Air Canada logo]()
$1,071
This Air Canada deal was found by Cheapflights users on 3/17. 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.
Tue 5/266:00 am
MCI
- BNE
2 stops34h 05m
Air Canada
Tue 6/210:15 am
BNE
- MCI
2 stops39h 35m
Air Canada
Deal found 3/17![Air Canada logo]()
$1,082
This Priceline deal was found by Cheapflights users on 3/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:24 pm
MCI
- BNE
2 stops22h 41m
Air Canada
Thu 6/410:15 am
BNE
- MCI
2 stops21h 07m
Air Canada
Deal found 3/18![Air Canada logo]()
$1,093
This Air Canada deal was found by Cheapflights users on 3/17. 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.
Tue 6/211:33 am
MCI
- BNE
2 stops28h 32m
Air Canada
Wed 6/1010:00 am
BNE
- MCI
2 stops28h 30m
Air Canada
Deal found 3/17![Air Canada logo]()
$1,105
Best flights from Missouri to AustraliaDiscover carefully curated flight deals from Missouri to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 21, 2026.
Discover carefully curated flight deals from Missouri to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 21, 2026.
This Air Canada deal was found by Cheapflights users on 3/20. 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.
Tue 5/51:05 pm
STL
- SYD
2 stops27h 15m
Air Canada
Tue 5/129:20 am
SYD
- STL
2 stops26h 05m
Air Canada
Deal found 3/20![Air Canada logo]()
$1,139
This Air Canada deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:40 pm
STL
- AVV
3 stops34h 25m
Multiple Airlines
Tue 9/228:55 pm
AVV
- STL
3 stops38h 05m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$1,150
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/202:40 pm
MCI
- BNE
2 stops23h 20m
American Airlines
Wed 6/38:35 pm
BNE
- MCI
2 stops29h 03m
American Airlines
Deal found 3/20![American Airlines logo]()
$1,248
This oojo deal was found by Cheapflights users on 3/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/202:33 pm
MCI
- BNE
2 stops27h 47m
Qantas Airways
Wed 6/37:55 am
BNE
- MCI
2 stops26h 00m
Qantas Airways
Deal found 3/19![Qantas Airways logo]()
$1,295
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:17 pm
MCI
- MEL
1 stop24h 13m
United Airlines
Sun 5/249:30 am
MEL
- MCI
1 stop21h 15m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,332
This Delta deal was found by Cheapflights users on 3/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:59 am
STL
- MEL
2 stops30h 51m
Delta
Fri 5/810:00 am
MEL
- STL
2 stops26h 29m
Delta
Deal found 3/17![Delta logo]()
$1,392
This oojo deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:16 am
MCI
- BNE
2 stops40h 14m
Air New Zealand
Thu 7/169:40 am
BNE
- MCI
2 stops39h 23m
Air New Zealand
Deal found 3/16![Air New Zealand logo]()
$1,393
This Qatar Airways deal was found by Cheapflights users on 3/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:00 am
MCI
- PER
2 stops39h 55m
Qatar Airways
Wed 4/2910:45 pm
PER
- MCI
2 stops38h 14m
Qatar Airways
Deal found 3/17![Qatar Airways logo]()
$1,637
This China Eastern deal was found by Cheapflights users on 3/17. 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 China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:06 am
MCI
- SYD
2 stops38h 29m
China Eastern
Fri 5/811:00 am
SYD
- MCI
2 stops51h 59m
China Eastern
Deal found 3/17![China Eastern logo]()
$1,891
This Air Canada deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:05 pm
STL
- SYD
2 stops48h 15m
Air Canada
Thu 5/79:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Deal found 3/16![Air Canada logo]()
$1,212
This Air Canada deal was found by Cheapflights users on 3/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:55 am
STL
- AVV
3 stops38h 15m
Multiple Airlines
Mon 9/218:55 pm
AVV
- STL
3 stops56h 05m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$1,265
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:17 pm
MCI
- MEL
1 stop24h 13m
United Airlines
Sun 5/2410:55 am
MEL
- MCI
2 stops27h 30m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,332
This Delta deal was found by Cheapflights users on 3/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:01 pm
STL
- MEL
2 stops45h 49m
Delta
Fri 8/1410:00 am
MEL
- STL
2 stops25h 31m
Delta
Deal found 3/18![Delta logo]()
$1,393
This Ovago deal was found by Cheapflights users on 3/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:51 pm
STL
- MEL
2 stops33h 29m
Multiple Airlines
Thu 9/37:30 am
MEL
- STL
2 stops29h 30m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$1,334
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:00 am
STL
- MEL
2 stops35h 15m
United Airlines
Thu 5/710:55 am
MEL
- STL
1 stop22h 27m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,336
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:30 am
STL
- BNE
1 stop31h 30m
American Airlines
Mon 9/287:30 am
BNE
- STL
2 stops25h 44m
American Airlines
Deal found 3/16![American Airlines logo]()
$1,476
This oojo deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:30 am
STL
- BNE
1 stop31h 30m
Qantas Airways
Mon 9/288:00 am
BNE
- STL
2 stops25h 14m
Qantas Airways
Deal found 3/16![Qantas Airways logo]()
$1,476
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:17 pm
MCI
- MEL
2 stops23h 58m
United Airlines
Wed 5/279:30 am
MEL
- MCI
2 stops23h 57m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,336
This BusinessClass deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/134:26 pm
MCI
- SYD
2 stops25h 19m
Air New Zealand
Sat 6/2710:20 am
SYD
- MCI
1 stop27h 11m
Air New Zealand
Deal found 3/16![Air New Zealand logo]()
$1,623
This Air Canada deal was found by Cheapflights users on 3/18. 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.
Sat 4/111:54 pm
MCI
- SYD
2 stops26h 26m
Multiple Airlines
Wed 5/139:20 am
SYD
- MCI
2 stops26h 21m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$1,396
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:50 pm
MCI
- MEL
2 stops27h 25m
United Airlines
Thu 5/2810:55 am
MEL
- MCI
2 stops22h 32m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,336
This Air Canada deal was found by Cheapflights users on 3/18. 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 8/248:55 am
STL
- AVV
3 stops38h 15m
Multiple Airlines
Thu 9/38:55 pm
AVV
- STL
3 stops38h 07m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$1,451
This oojo deal was found by Cheapflights users on 3/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:21 am
STL
- PER
2 stops40h 44m
Qantas Airways
Sun 5/1011:45 pm
PER
- STL
2 stops37h 14m
Qantas Airways
Deal found 3/19![Qantas Airways logo]()
$1,757
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:02 pm
STL
- SYD
2 stops26h 48m
Delta
Sat 4/259:15 am
SYD
- STL
2 stops22h 35m
Delta
Deal found 3/16![Delta logo]()
$1,766
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/142:59 pm
MCI
- MEL
2 stops26h 16m
United Airlines
Fri 5/229:30 am
MEL
- MCI
2 stops21h 52m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,336
This Qatar Airways deal was found by Cheapflights users on 3/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:46 am
STL
- PER
2 stops43h 49m
Qatar Airways
Wed 9/1610:45 pm
PER
- STL
2 stops34h 18m
Qatar Airways
Deal found 3/17![Qatar Airways logo]()
$2,069
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
MCI
- MEL
1 stop34h 15m
United Airlines
Thu 5/710:55 am
MEL
- MCI
1 stop26h 35m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,342
This Qantas Airways deal was found by Cheapflights users on 3/20. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:11 pm
STL
- MEL
2 stops24h 49m
Multiple Airlines
Mon 5/111:35 pm
MEL
- STL
1 stop20h 55m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$1,497
This oojo deal was found by Cheapflights users on 3/18. 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.
Tue 8/256:30 am
STL
- AVV
2 stops40h 50m
Qantas Airways
Thu 9/310:30 am
AVV
- STL
2 stops27h 38m
Qantas Airways
Deal found 3/18![Qantas Airways logo]()
$1,893
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/211:38 pm
STL
- MEL
2 stops27h 37m
United Airlines
Mon 8/1010:55 am
MEL
- STL
2 stops24h 48m
United Airlines
Deal found 3/18![United Airlines logo]()
$1,372
Last-minute flights from Missouri to AustraliaDiscover last-minute flight deals from Missouri to Australia. Data last updated March 21, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Australia. Data last updated March 21, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:13 pm
STL
- SYD
1 stop22h 42m
Qantas Airways
Fri 10/307:40 pm
SYD
- STL
2 stops43h 25m
Qantas Airways
Deal found 3/18![Qantas Airways logo]()
$1,328
This lastminute.com deal was found by Cheapflights users on 3/17. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:50 pm
STL
- SYD
2 stops26h 00m
Fiji Airways
Sat 4/181:15 pm
SYD
- STL
2 stops24h 44m
Fiji Airways
Deal found 3/17![Fiji Airways logo]()
$1,261
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:17 pm
MCI
- SYD
2 stops47h 03m
Air Canada
Wed 4/299:20 am
SYD
- MCI
2 stops29h 05m
Air Canada
Deal found 3/15![Air Canada logo]()
$1,346
This lastminute.com deal was found by Cheapflights users on 3/19. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/252:33 pm
MCI
- MEL
1 stop23h 27m
Qantas Airways
Mon 5/111:35 pm
MEL
- MCI
1 stop20h 46m
Qantas Airways
Deal found 3/19![Qantas Airways logo]()
$1,352
This Air Canada deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:17 pm
MCI
- BNE
2 stops46h 48m
Air Canada
Wed 4/2910:00 am
BNE
- MCI
2 stops28h 25m
Air Canada
Deal found 3/17![Air Canada logo]()
$1,362
This Air Canada deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:05 pm
STL
- BNE
2 stops48h 00m
Air Canada
Wed 4/2910:00 am
BNE
- STL
2 stops49h 43m
Air Canada
Deal found 3/17![Air Canada logo]()
$1,368
This United Airlines deal was found by Cheapflights users on 3/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:17 pm
MCI
- MEL
2 stops23h 58m
United Airlines
Mon 5/1110:55 am
MEL
- MCI
2 stops27h 36m
United Airlines
Deal found 3/19![United Airlines logo]()
$1,372
This Expedia deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:05 pm
STL
- BNE
2 stops48h 00m
Air Canada
Thu 5/710:00 am
BNE
- STL
2 stops25h 25m
Air Canada
Deal found 3/16![Air Canada logo]()
$998
This Air Canada deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:05 pm
STL
- BNE
3 stops53h 00m
Multiple Airlines
Thu 5/710:00 am
BNE
- STL
2 stops25h 25m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$1,026
This Air Canada deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/304:05 pm
STL
- SYD
2 stops48h 15m
Air Canada
Thu 5/79:20 am
SYD
- STL
2 stops41h 46m
Air Canada
Deal found 3/16![Air Canada logo]()
$1,212
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:45 am
STL
- MEL
2 stops33h 30m
United Airlines
Thu 5/710:55 am
MEL
- STL
2 stops24h 48m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,336
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:15 am
MCI
- MEL
2 stops35h 00m
United Airlines
Thu 5/710:55 am
MEL
- MCI
2 stops24h 46m
United Airlines
Deal found 3/16![United Airlines logo]()
$1,336
One-way flights from Missouri to AustraliaSearch for one-way flight options from Missouri to Australia. Find affordable one-way fares based on user searches. Data last updated March 21, 2026.
Search for one-way flight options from Missouri to Australia. Find affordable one-way fares based on user searches. Data last updated March 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:34 pm
MCI
- BNE
3 stops53h 06m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$536
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:51 pm
STL
- MEL
3 stops50h 14m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/59:21 pm
STL
- SYD
3 stops47h 29m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$558
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/242:34 pm
MCI
- SYD
3 stops54h 31m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$568
This Air Canada deal was found by Cheapflights users on 3/18. 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.
Wed 5/61:05 pm
STL
- SYD
2 stops27h 15m
Air Canada
Deal found 3/18![Air Canada logo]()
$635
This Air Canada deal was found by Cheapflights users on 3/18. 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.
Fri 6/51:00 pm
STL
- SYD
2 stops27h 20m
Air Canada
Deal found 3/18![Air Canada logo]()
$656
This Air Canada deal was found by Cheapflights users on 3/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/52:25 pm
STL
- AVV
3 stops34h 40m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$657
This Air Canada deal was found by Cheapflights users on 3/20. 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.
Sun 6/77:05 am
STL
- AVV
3 stops40h 05m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$658
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:32 pm
STL
- PER
3 stops48h 23m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$661
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/77:05 am
STL
- MEL
3 stops37h 00m
Air Canada
Deal found 3/20![Air Canada logo]()
$671
This Gurufare deal was found by Cheapflights users on 3/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:05 am
STL
- SYD
1 stop33h 15m
ANA
Deal found 3/18![ANA logo]()
$675
This Air Canada deal was found by Cheapflights users on 3/18. 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.
Fri 6/192:20 pm
STL
- AVV
3 stops32h 50m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$678
Find flight deals from Missouri to Australia
Keep the following information in mind while searching for Missouri to Australia flight deals. Data was last updated March 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $965 (Air Canada) |
One-way from | $536 (Kiwi.com) |
Popular in | December |
Cheapest in | March |
Average price | $1,254 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Australia 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 21, 2026.
Use the filters below to find and compare flights from Missouri to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Tue 5/5
1:05 pm-7:20 am
2 stops27h 15m
Sydney Kingsford Smith
Tue 5/12
9:20 am-8:25 pm
2 stops26h 05m
$1,139
St. LouisMelbourne
STL - AVV
STLAVV
Lambert-St Louis
Sat 9/12
2:40 pm-4:05 pm
3 stops34h 25m
Melbourne Avalon
Tue 9/22
8:55 pm-8:00 pm
3 stops38h 05m
$1,150
St. LouisSydney
STL - SYD
STLSYD
Lambert-St Louis
Thu 4/30
4:05 pm-7:20 am
2 stops48h 15m
Sydney Kingsford Smith
Thu 5/7
9:20 am-12:06 pm
2 stops41h 46m
$1,212
Kansas CityBrisbane
MCI - BNE
MCIBNE
Kansas City
Wed 5/20
2:40 pm-5:00 am
2 stops23h 20m
Brisbane
Wed 6/3
8:35 pm-10:38 am
2 stops29h 03m
$1,248
St. LouisMelbourne
STL - AVV
STLAVV
Lambert-St Louis
Fri 9/11
8:55 am-2:10 pm
3 stops38h 15m
Melbourne Avalon
Mon 9/21
8:55 pm-2:00 pm
3 stops56h 05m
$1,265
Kansas CityBrisbane
MCI - BNE
MCIBNE
Kansas City
Wed 5/20
2:33 pm-9:20 am
2 stops27h 47m
Brisbane
Wed 6/3
7:55 am-6:55 pm
2 stops26h 00m
$1,295
Quickest round-trip
Kansas CityMelbourne
MCI - MEL
MCIMEL
Kansas City
Fri 5/15
4:17 pm-7:30 am
1 stop24h 13m
Melbourne
Sun 5/24
9:30 am-3:45 pm
1 stop21h 15m
$1,332
Kansas CityMelbourne
MCI - MEL
MCIMEL
Kansas City
Wed 5/13
4:17 pm-7:30 am
1 stop24h 13m
Melbourne
Sun 5/24
10:55 am-11:25 pm
2 stops27h 30m
$1,332
St. LouisMelbourne
STL - MEL
STLMEL
Lambert-St Louis
Tue 8/25
6:51 pm-7:20 pm
2 stops33h 29m
Melbourne
Thu 9/3
7:30 am-10:00 pm
2 stops29h 30m
$1,334
St. LouisMelbourne
STL - MEL
STLMEL
Lambert-St Louis
Thu 4/30
6:00 am-8:15 am
2 stops35h 15m
Melbourne
Thu 5/7
10:55 am-6:22 pm
1 stop22h 27m
$1,336
Showing 1-10 of 59 resultsSorted by cheapest first
Best time to book a flight from Missouri to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from Missouri with our price prediction graph.
MCI-BNE
STL-MEL
STL-SYD
MCI-SYD
STL-AVV
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 Missouri to Australia
USMO-AU0
MCI-BNE
STL-MEL
STL-SYD
MCI-SYD
What is the cheapest month to book a flight from Missouri to Australia?
Currently, December is the cheapest month in which you can book a flight from Missouri to Australia (average of $641). Flying from Missouri to Australia in June is currently the most expensive (average of $1,155). 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.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
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Top regions
Alternative routes for Missouri to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Australia by cabin class
Find flights from Missouri to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Australia flights
Browse other Missouri and Australia flight options. Last updated on March 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Australia
Find the right flight back to Missouri after your stay in Australia
Missouri to Australia flights
Consider these flights traveling from Missouri to Australia.
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 6 airlines flying from Missouri to Australia
Discover the top 6 airlines that operate flights from Missouri to Australia. 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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$539 | Average$1,384 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$707 | Average$1,462 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$894 | Average$1,001 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$917 | Average$1,430 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$973 | Average$1,375 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,132 | Average$1,268 | FlexibilityNo cancel fee | On-time74% |