$613+ Cheap flights from Missouri to Australia
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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Oct 21 — Oct 281
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Australia 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
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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 Missouri to Australia
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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 September 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 September 21, 2026.
This oojo deal was found by Cheapflights users on 9/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:16 am -
2 stops33h 19m
Sun 11/89:55 am -
2 stops29h 20m
Deal found 9/17![Air New Zealand logo]()
$1,240
This Justfly.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/35:11 pm -
2 stops35h 19m
Wed 1/202:05 pm -
1 stop19h 36m
Deal found 9/20![Qantas Airways logo]()
$1,251
This oojo deal was found by Cheapflights users on 9/19. 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.
Tue 11/32:54 pm -
1 stop23h 36m
Tue 11/101:10 pm -
1 stop23h 32m
Deal found 9/19![Qantas Airways logo]()
$1,264
This FlightHub deal was found by Cheapflights users on 9/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:28 am -
2 stops35h 27m
Mon 11/168:15 am -
2 stops31h 15m
Deal found 9/17![Air New Zealand logo]()
$1,265
This American Airlines deal was found by Cheapflights users on 9/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:54 pm -
2 stops22h 56m
Tue 11/101:10 pm -
2 stops23h 09m
Deal found 9/19![American Airlines logo]()
$1,290
This Qantas Airways deal was found by Cheapflights users on 9/20. 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.
Sat 10/315:20 pm -
1 stop22h 10m
Wed 11/49:10 am -
2 stops23h 17m
Deal found 9/20![Qantas Airways logo]()
$1,291
This Air Canada deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:05 pm -
2 stops24h 40m
Sun 11/810:45 am -
2 stops44h 41m
Deal found 9/17![Air Canada logo]()
$1,297
This FlightHub deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:17 am -
2 stops33h 18m
Wed 12/167:25 pm -
2 stops44h 05m
Deal found 9/18![Air New Zealand logo]()
$1,302
This Qantas Airways deal was found by Cheapflights users on 9/19. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:05 pm -
2 stops25h 20m
Tue 11/102:05 pm -
1 stop19h 36m
Deal found 9/19![Multiple Airlines logo]()
$1,310
This American Airlines deal was found by Cheapflights users on 9/20. 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 11/43:41 pm -
2 stops24h 19m
Wed 11/112:05 pm -
1 stop24h 57m
Deal found 9/20![American Airlines logo]()
$1,310
This oojo deal was found by Cheapflights users on 9/19. 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.
Mon 11/25:17 pm -
1 stop42h 43m
Mon 11/166:30 pm -
2 stops38h 55m
Deal found 9/19![Qantas Airways logo]()
$1,312
This Air Canada deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:05 pm -
3 stops53h 20m
Sun 11/810:45 am -
2 stops44h 41m
Deal found 9/17![Multiple Airlines logo]()
$1,317
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 September 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 September 21, 2026.
This Qantas Airways deal was found by Cheapflights users on 9/18. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:20 pm -
1 stop22h 10m
Wed 11/49:10 am -
2 stops23h 17m
Deal found 9/18![Qantas Airways logo]()
$1,291
This Qantas Airways deal was found by Cheapflights users on 9/19. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:05 pm -
2 stops25h 20m
Tue 11/102:05 pm -
1 stop19h 36m
Deal found 9/19![Multiple Airlines logo]()
$1,310
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Mon 12/78:17 am -
1 stop32h 03m
Wed 12/1611:50 am -
1 stop23h 21m
Deal found 9/18![United Airlines logo]()
$1,340
This BusinessClass deal was found by Cheapflights users on 9/16. 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 10/317:05 pm -
2 stops47h 30m
Sat 11/711:50 am -
2 stops27h 25m
Deal found 9/16![Air New Zealand logo]()
$1,374
This Delta deal was found by Cheapflights users on 9/17. 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.
Mon 11/26:34 am -
2 stops32h 26m
Mon 11/1610:10 am -
1 stop21h 37m
Deal found 9/17![Delta logo]()
$1,414
This Qatar Airways deal was found by Cheapflights users on 9/17. 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.
Sun 11/87:00 am -
2 stops45h 45m
Thu 11/1210:45 pm -
2 stops39h 14m
Deal found 9/17![Qatar Airways logo]()
$1,640
This Qantas Airways deal was found by Cheapflights users on 9/17. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/85:18 pm -
1 stop21h 12m
Fri 2/121:10 pm -
1 stop26h 38m
Deal found 9/17![Qantas Airways logo]()
$1,345
This Air Canada deal was found by Cheapflights users on 9/17. 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 10/274:05 pm -
3 stops51h 35m
Wed 11/117:45 am -
3 stops48h 41m
Deal found 9/17![Multiple Airlines logo]()
$1,351
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 11/16:16 am -
1 stop31h 44m
Sun 11/89:15 am -
1 stop21h 57m
Deal found 9/18![United Airlines logo]()
$1,359
This Delta deal was found by Cheapflights users on 9/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/243:45 pm -
1 stop23h 15m
Sun 2/710:10 am -
1 stop21h 37m
Deal found 9/20![Delta logo]()
$1,459
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/318:30 am -
1 stop28h 50m
Mon 2/89:20 am -
1 stop24h 23m
Deal found 9/20![United Airlines logo]()
$1,359
This Qantas Airways deal was found by Cheapflights users on 9/17. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:05 pm -
2 stops25h 20m
Sun 11/82:05 pm -
1 stop19h 36m
Deal found 9/17![Multiple Airlines logo]()
$1,360
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/311:09 pm -
2 stops24h 51m
Tue 2/99:20 am -
1 stop21h 45m
Deal found 9/20![United Airlines logo]()
$1,359
This Air Canada deal was found by Cheapflights users on 9/17. 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.
Fri 2/264:05 pm -
3 stops53h 00m
Mon 3/86:00 am -
3 stops50h 26m
Deal found 9/17![Multiple Airlines logo]()
$1,371
This Delta deal was found by Cheapflights users on 9/18. 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.
Tue 10/207:20 pm -
2 stops45h 30m
Tue 11/310:10 am -
2 stops27h 59m
Deal found 9/18![Delta logo]()
$1,514
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/13:03 pm -
1 stop22h 57m
Tue 2/99:20 am -
1 stop24h 23m
Deal found 9/20![United Airlines logo]()
$1,359
This Air New Zealand deal was found by Cheapflights users on 9/16. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:40 pm -
3 stops28h 55m
Sat 11/79:55 am -
2 stops29h 20m
Deal found 9/16![Multiple Airlines logo]()
$1,431
This Qantas Airways deal was found by Cheapflights users on 9/17. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:17 pm -
1 stop20h 38m
Thu 11/127:15 pm -
2 stops38h 12m
Deal found 9/17![Qantas Airways logo]()
$1,781
This Qatar Airways deal was found by Cheapflights users on 9/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:50 am -
2 stops42h 55m
Fri 11/1310:45 pm -
2 stops37h 39m
Deal found 9/16![Qatar Airways logo]()
$1,967
This United Airlines deal was found by Cheapflights users on 9/19. 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.
Tue 11/39:01 am -
2 stops31h 19m
Tue 11/1011:20 am -
2 stops26h 21m
Deal found 9/19![United Airlines logo]()
$1,364
This Air Canada deal was found by Cheapflights users on 9/18. 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 3/154:05 pm -
3 stops55h 30m
Sun 3/218:55 pm -
3 stops58h 31m
Deal found 9/18![Multiple Airlines logo]()
$1,480
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:10 am -
2 stops28h 45m
Wed 11/189:15 am -
1 stop21h 58m
Deal found 9/20![United Airlines logo]()
$1,364
This SmartFares deal was found by Cheapflights users on 9/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am -
2 stops50h 55m
Mon 11/912:25 am -
2 stops52h 00m
Deal found 9/19![Multiple Airlines logo]()
$1,486
This United Airlines deal was found by Cheapflights users on 9/16. 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 12/96:30 am -
2 stops33h 50m
Fri 1/811:20 am -
2 stops27h 53m
Deal found 9/16![United Airlines logo]()
$1,399
This Qatar Airways deal was found by Cheapflights users on 9/18. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:40 am -
2 stops52h 10m
Sun 11/13:50 pm -
2 stops43h 02m
Deal found 9/18![Qatar Airways logo]()
$2,317
This Cathay Pacific deal was found by Cheapflights users on 9/17. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:15 pm -
2 stops44h 40m
Sun 11/88:30 am -
2 stops47h 47m
Deal found 9/17![Multiple Airlines logo]()
$1,500
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/318:30 am -
1 stop30h 30m
Sat 11/711:20 am -
1 stop20h 25m
Deal found 9/16![United Airlines logo]()
$1,409
This Cathay Pacific deal was found by Cheapflights users on 9/19. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:29 pm -
2 stops47h 26m
Mon 11/168:30 am -
2 stops47h 47m
Deal found 9/19![Multiple Airlines logo]()
$1,500
This United Airlines deal was found by Cheapflights users on 9/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/112:50 pm -
1 stop25h 10m
Mon 2/1511:50 am -
1 stop27h 25m
Deal found 9/20![United Airlines logo]()
$1,409
This Cathay Pacific deal was found by Cheapflights users on 9/17. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:04 am -
2 stops38h 11m
Mon 11/212:45 am -
2 stops34h 32m
Deal found 9/17![Multiple Airlines logo]()
$1,517
Last-minute flights from Missouri to AustraliaDiscover last-minute flight deals from Missouri to Australia. Data last updated September 21, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Australia. Data last updated September 21, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 9/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:00 am -
2 stops55h 05m
Sun 10/1810:00 am -
2 stops52h 44m
Deal found 9/17![Air Canada logo]()
$1,321
This United Airlines deal was found by Cheapflights users on 9/21. 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 10/131:29 pm -
2 stops26h 26m
Wed 11/1811:50 am -
1 stop23h 15m
Deal found 9/21![United Airlines logo]()
$1,364
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:04 am -
1 stop33h 26m
Wed 11/1811:10 am -
1 stop26h 32m
Deal found 9/18![American Airlines logo]()
$1,386
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/144:39 pm -
2 stops23h 21m
Tue 10/2711:50 am -
1 stop22h 15m
Deal found 9/16![United Airlines logo]()
$1,329
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Sun 10/183:12 pm -
2 stops24h 43m
Sun 10/2511:50 am -
2 stops25h 11m
Deal found 9/18![United Airlines logo]()
$1,384
This American Airlines deal was found by Cheapflights users on 9/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/182:31 pm -
2 stops25h 34m
Sun 10/2511:15 am -
2 stops25h 28m
Deal found 9/19![American Airlines logo]()
$1,400
This American Airlines deal was found by Cheapflights users on 9/21. 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 10/1912:46 pm -
2 stops26h 44m
Mon 10/2611:10 am -
2 stops24h 38m
Deal found 9/21![American Airlines logo]()
$1,350
This Air Canada deal was found by Cheapflights users on 9/17. 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 10/274:05 pm -
3 stops51h 35m
Wed 11/117:45 am -
3 stops48h 41m
Deal found 9/17![Multiple Airlines logo]()
$1,351
This Qantas Airways deal was found by Cheapflights users on 9/20. 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.
Sat 10/315:20 pm -
1 stop22h 10m
Wed 11/49:10 am -
2 stops23h 17m
Deal found 9/20![Qantas Airways logo]()
$1,291
This Qantas Airways deal was found by Cheapflights users on 9/16. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/313:20 pm -
1 stop23h 35m
Sat 11/711:05 am -
2 stops26h 37m
Deal found 9/16![Qantas Airways logo]()
$1,318
This BusinessClass deal was found by Cheapflights users on 9/16. 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 10/317:05 pm -
2 stops47h 30m
Sat 11/711:50 am -
2 stops27h 25m
Deal found 9/16![Air New Zealand logo]()
$1,374
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/318:30 am -
1 stop30h 30m
Sat 11/711:20 am -
1 stop20h 25m
Deal found 9/16![United Airlines logo]()
$1,409
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 September 21, 2026.
Search for one-way flight options from Missouri to Australia. Find affordable one-way fares based on user searches. Data last updated September 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
Mon 10/268:00 pm -
2 stops42h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$613
This oojo deal was found by Cheapflights users on 9/18. 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.
Mon 2/15:18 pm -
1 stop21h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Qantas Airways logo]()
$674
This American Airlines deal was found by Cheapflights users on 9/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/112:50 pm -
2 stops25h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![American Airlines logo]()
$681
This American Airlines deal was found by Cheapflights users on 9/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/111:54 am -
2 stops28h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![American Airlines logo]()
$696
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/13:08 pm -
1 stop22h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$698
This oojo deal was found by Cheapflights users on 9/18. 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.
Mon 10/263:20 pm -
1 stop23h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Qantas Airways logo]()
$703
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Tue 10/2710:53 am -
2 stops28h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$708
This United Airlines deal was found by Cheapflights users on 9/18. 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.
Mon 10/51:29 pm -
2 stops26h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/147:08 am -
1 stop32h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$725
This Delta deal was found by Cheapflights users on 9/16. 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.
Wed 9/302:25 pm -
2 stops25h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$728
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/137:01 pm -
2 stops44h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$752
This Delta deal was found by Cheapflights users on 9/16. 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.
Sat 10/31:40 pm -
2 stops50h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Delta logo]()
$759
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 September 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,202 (Qantas Airways) |
One-way from | $613 (Kiwi.com) |
Popular in | December |
Cheapest in | July |
Average price | $1,373 |
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 7,457,451 searches. Data last updated September 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
Quickest round-trip
St. LouisBrisbane
STL Lambert-St Louis - BNE Brisbane
STLBNE
Lambert-St Louis
Mon 2/1
5:18 pm-6:30 am
1 stop21h 12m
Brisbane
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$674
St. LouisBrisbane
STL Lambert-St Louis - BNE Brisbane
STLBNE
Lambert-St Louis
Mon 2/1
12:50 pm-5:50 am
2 stops25h 00m
Brisbane
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$681
Kansas CitySydney
MCI Kansas City - SYD Sydney Kingsford Smith
MCISYD
Kansas City
Mon 2/1
12:16 pm-9:00 am
2 stops27h 44m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$696
Kansas CitySydney
MCI Kansas City - SYD Sydney Kingsford Smith
MCISYD
Kansas City
Mon 2/1
3:08 pm-7:00 am
1 stop22h 52m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$698
St. LouisSydney
STL Lambert-St Louis - SYD Sydney Kingsford Smith
STLSYD
Lambert-St Louis
Tue 10/27
1:08 pm-8:40 am
3 stops27h 32m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$708
St. LouisSydney
STL Lambert-St Louis - SYD Sydney Kingsford Smith
STLSYD
Lambert-St Louis
Sun 11/1
11:00 am-7:00 am
1 stop27h 00m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$708
St. LouisSydney
STL Lambert-St Louis - SYD Sydney Kingsford Smith
STLSYD
Lambert-St Louis
Mon 10/5
1:29 pm-8:00 am
2 stops26h 31m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$724
St. LouisBrisbane
STL Lambert-St Louis - BNE Brisbane
STLBNE
Lambert-St Louis
Mon 2/1
7:02 pm-9:10 am
3 stops46h 08m
Brisbane
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$760
St. LouisSydney
STL Lambert-St Louis - SYD Sydney Kingsford Smith
STLSYD
Lambert-St Louis
Fri 10/16
6:15 am-7:55 am
2 stops33h 40m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$764
St. LouisSydney
STL Lambert-St Louis - SYD Sydney Kingsford Smith
STLSYD
Lambert-St Louis
Tue 10/6
12:17 pm-7:30 am
2 stops27h 13m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$772
Showing 1-10 of 60 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.
STL-SYD
STL-BNE
MCI-SYD
MCI-BNE
STL-MEL
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
STL-SYD
STL-BNE
MCI-SYD
MCI-BNE
What is the cheapest month to book a flight from Missouri to Australia?
Currently, May is the cheapest month in which you can book a flight from Missouri to Australia (average of $1,155). Flying from Missouri to Australia in December is currently the most expensive (average of $1,707). 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
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
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 September 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 5 airlines flying from Missouri to Australia
Discover the top 5 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 7,457,451 searches. Data last updated September 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$857 | Average$1,499 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$894 | Average$907 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$917 | Average$1,317 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$934 | Average$1,422 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$962 | Average$1,415 | FlexibilityNo cancel fee | On-time71% |