$623+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SYD
Sep 5 — Sep 121
Round-trip
1 adult, Economy
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Find cheap flights from Missouri to Australia with Cheapflights
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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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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 August 6, 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 August 6, 2026.
This lol.travel deal was found by Cheapflights users on 8/1. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:14 pm -
1 stop20h 46m
Wed 8/261:35 pm -
1 stop19h 59m
Deal found 8/1![Qantas Airways logo]()
$1,154
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:27 pm -
2 stops25h 38m
Wed 8/1912:00 pm -
1 stop19h 29m
Deal found 8/5![Qantas Airways logo]()
$1,225
This oojo deal was found by Cheapflights users on 8/4. 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 8/56:00 am -
2 stops34h 30m
Wed 8/1212:00 pm -
1 stop19h 29m
Deal found 8/4![Qantas Airways logo]()
$1,228
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:15 am -
2 stops30h 35m
Sun 8/239:15 am -
2 stops24h 40m
Deal found 8/5![Delta logo]()
$1,230
This American Airlines deal was found by Cheapflights users on 8/1. 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 8/1011:20 am -
1 stop26h 40m
Wed 8/269:45 am -
2 stops23h 49m
Deal found 8/1![American Airlines logo]()
$1,234
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/313:29 pm -
1 stop24h 26m
Mon 9/710:20 am -
1 stop19h 13m
Deal found 8/1![United Airlines logo]()
$1,237
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/313:13 pm -
2 stops24h 42m
Mon 9/710:20 am -
1 stop23h 19m
Deal found 8/1![United Airlines logo]()
$1,237
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:26 pm -
1 stop23h 34m
Wed 8/129:30 am -
1 stop21h 09m
Deal found 8/4![United Airlines logo]()
$1,238
This American Airlines deal was found by Cheapflights users on 8/4. 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 8/52:27 pm -
2 stops25h 38m
Wed 8/129:10 am -
2 stops24h 24m
Deal found 8/4![American Airlines logo]()
$1,239
This United Airlines deal was found by Cheapflights users on 8/3. 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 11/184:00 pm -
2 stops27h 35m
Sat 11/2112:10 pm -
2 stops45h 57m
Deal found 8/3![United Airlines logo]()
$1,240
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/125:13 pm -
2 stops22h 47m
Wed 8/199:30 am -
2 stops23h 00m
Deal found 8/5![United Airlines logo]()
$1,242
This American Airlines deal was found by Cheapflights users on 8/2. 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 10/276:32 am -
1 stop30h 28m
Wed 11/1110:45 pm -
2 stops26h 22m
Deal found 8/2![American Airlines logo]()
$1,244
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 August 6, 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 August 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/311:43 pm -
2 stops26h 12m
Mon 9/710:20 am -
1 stop19h 13m
Deal found 8/1![United Airlines logo]()
$1,237
This Delta deal was found by Cheapflights users on 8/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am -
2 stops34h 50m
Mon 11/1612:00 pm -
1 stop19h 49m
Deal found 8/6![Delta logo]()
$1,262
This Qantas Airways deal was found by Cheapflights users on 8/2. 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.
Wed 9/163:31 pm -
2 stops24h 24m
Wed 9/2312:00 pm -
1 stop19h 19m
Deal found 8/2![Multiple Airlines logo]()
$1,308
This oojo deal was found by Cheapflights users on 8/3. 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 9/177:00 am -
2 stops41h 30m
Thu 9/2410:00 pm -
2 stops40h 29m
Deal found 8/3![Qatar Airways logo]()
$1,418
This Qantas Airways deal was found by Cheapflights users on 8/1. 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 11/75:11 pm -
2 stops34h 29m
Wed 11/112:05 pm -
1 stop19h 36m
Deal found 8/1![Qantas Airways logo]()
$1,427
This American Airlines deal was found by Cheapflights users on 8/3. 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.
Fri 9/2511:01 am -
2 stops26h 59m
Sat 10/108:35 pm -
2 stops29h 15m
Deal found 8/3![American Airlines logo]()
$1,598
This United Airlines deal was found by Cheapflights users on 8/3. 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 11/184:00 pm -
2 stops27h 35m
Sat 11/2112:10 pm -
2 stops45h 57m
Deal found 8/3![United Airlines logo]()
$1,240
This Delta deal was found by Cheapflights users on 8/3. 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 12/86:14 am -
2 stops33h 16m
Mon 1/1110:40 am -
1 stop21h 07m
Deal found 8/3![Delta logo]()
$1,312
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/314:40 pm -
2 stops23h 15m
Mon 9/710:20 am -
2 stops27h 41m
Deal found 8/1![United Airlines logo]()
$1,241
This Air Canada deal was found by Cheapflights users on 8/4. 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 10/52:40 pm -
3 stops33h 25m
Tue 10/206:00 am -
3 stops30h 00m
Deal found 8/4![Multiple Airlines logo]()
$1,410
This Delta deal was found by Cheapflights users on 8/2. 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 10/255:35 pm -
2 stops46h 55m
Wed 11/1810:40 am -
2 stops21h 52m
Deal found 8/2![Delta logo]()
$1,316
This FlightHub deal was found by Cheapflights users on 8/3. 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.
Wed 10/286:17 am -
2 stops42h 43m
Wed 11/2510:00 pm -
2 stops38h 15m
Deal found 8/3![Qatar Airways logo]()
$1,457
This United Airlines deal was found by Cheapflights users on 8/3. 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 11/26:03 pm -
1 stop23h 27m
Mon 11/1612:45 pm -
1 stop26h 30m
Deal found 8/3![United Airlines logo]()
$1,262
This Qantas Airways deal was found by Cheapflights users on 8/1. 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.
Wed 10/287:12 pm -
2 stops31h 18m
Sun 11/17:00 pm -
2 stops37h 57m
Deal found 8/1![Qantas Airways logo]()
$1,587
This Air Canada deal was found by Cheapflights users on 8/2. 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 stops63h 10m
Wed 11/118:55 pm -
3 stops59h 31m
Deal found 8/2![Multiple Airlines logo]()
$1,447
This Delta deal was found by Cheapflights users on 8/1. 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 9/76:20 am -
2 stops33h 30m
Mon 9/149:15 am -
2 stops29h 01m
Deal found 8/1![Delta logo]()
$1,332
This Cathay Pacific deal was found by Cheapflights users on 8/1. 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 12/276:44 pm -
3 stops43h 56m
Mon 1/41:30 pm -
3 stops43h 13m
Deal found 8/1![Cathay Pacific logo]()
$3,257
This American Airlines deal was found by Cheapflights users on 8/1. 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 9/62:09 pm -
2 stops34h 26m
Mon 9/2811:55 pm -
2 stops29h 44m
Deal found 8/1![American Airlines logo]()
$1,629
This Ovago deal was found by Cheapflights users on 8/3. 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.
Sat 9/127:27 am -
2 stops43h 03m
Sat 9/1910:10 pm -
2 stops41h 17m
Deal found 8/3![Qatar Airways logo]()
$1,514
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Tue 10/201:29 pm -
2 stops27h 46m
Tue 11/312:45 pm -
2 stops25h 14m
Deal found 8/5![United Airlines logo]()
$1,267
This Delta deal was found by Cheapflights users on 8/3. 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 11/173:20 pm -
2 stops24h 10m
Wed 11/2510:40 am -
2 stops27h 11m
Deal found 8/3![Delta logo]()
$1,332
This Trip.com deal was found by Cheapflights users on 8/3. 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 9/177:44 pm -
1 stop20h 11m
Thu 9/2412:00 pm -
1 stop20h 56m
Deal found 8/3![Qantas Airways logo]()
$1,621
This Air Canada deal was found by Cheapflights users on 8/6. 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.
Tue 10/202:40 pm -
3 stops31h 30m
Tue 11/36:00 am -
3 stops50h 26m
Deal found 8/6![Multiple Airlines logo]()
$1,499
This United Airlines deal was found by Cheapflights users on 8/4. 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 10/47:08 am -
1 stop34h 07m
Mon 10/1911:55 am -
1 stop22h 48m
Deal found 8/4![United Airlines logo]()
$1,273
This Qatar Airways deal was found by Cheapflights users on 8/2. 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.
Fri 10/307:02 am -
2 stops48h 18m
Sun 11/811:40 pm -
2 stops35h 37m
Deal found 8/2![Qatar Airways logo]()
$1,567
This oojo deal was found by Cheapflights users on 8/2. 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 -
2 stops29h 33m
Mon 11/168:10 am -
2 stops25h 17m
Deal found 8/2![Qantas Airways logo]()
$1,626
This Delta deal was found by Cheapflights users on 8/1. 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 9/1110:29 am -
2 stops30h 21m
Fri 9/1810:00 am -
2 stops22h 37m
Deal found 8/1![Delta logo]()
$1,362
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/15:14 pm -
2 stops28h 11m
Mon 9/71:25 pm -
2 stops41h 34m
Deal found 8/2![Multiple Airlines logo]()
$1,508
This United Airlines deal was found by Cheapflights users on 8/2. 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 9/13:29 pm -
1 stop25h 46m
Mon 9/710:00 am -
3 stops52h 30m
Deal found 8/2![United Airlines logo]()
$1,276
This Qatar Airways deal was found by Cheapflights users on 8/2. 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.
Thu 10/229:48 am -
2 stops38h 42m
Mon 10/2610:00 pm -
2 stops39h 27m
Deal found 8/2![Qatar Airways logo]()
$1,594
Last-minute flights from Missouri to AustraliaDiscover last-minute flight deals from Missouri to Australia. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Australia. Data last updated August 6, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/4. 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 8/56:00 am -
2 stops34h 30m
Wed 8/1212:00 pm -
1 stop19h 29m
Deal found 8/4![Qantas Airways logo]()
$1,228
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:26 pm -
1 stop23h 34m
Wed 8/129:30 am -
1 stop21h 09m
Deal found 8/4![United Airlines logo]()
$1,238
This American Airlines deal was found by Cheapflights users on 8/4. 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 8/52:27 pm -
2 stops25h 38m
Wed 8/129:10 am -
2 stops24h 24m
Deal found 8/4![American Airlines logo]()
$1,239
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:15 am -
2 stops30h 35m
Sun 8/239:15 am -
2 stops24h 40m
Deal found 8/5![Delta logo]()
$1,230
This lol.travel deal was found by Cheapflights users on 8/1. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:14 pm -
1 stop20h 46m
Wed 8/261:35 pm -
1 stop19h 59m
Deal found 8/1![Qantas Airways logo]()
$1,154
This American Airlines deal was found by Cheapflights users on 8/1. 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 8/1011:20 am -
1 stop26h 40m
Wed 8/269:45 am -
2 stops23h 49m
Deal found 8/1![American Airlines logo]()
$1,234
This oojo deal was found by Cheapflights users on 8/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:27 pm -
2 stops25h 38m
Wed 8/1912:00 pm -
1 stop19h 29m
Deal found 8/5![Qantas Airways logo]()
$1,225
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/125:13 pm -
2 stops22h 47m
Wed 8/199:30 am -
2 stops23h 00m
Deal found 8/5![United Airlines logo]()
$1,242
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/313:29 pm -
1 stop24h 26m
Mon 9/710:20 am -
1 stop19h 13m
Deal found 8/1![United Airlines logo]()
$1,237
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/313:13 pm -
2 stops24h 42m
Mon 9/710:20 am -
1 stop23h 19m
Deal found 8/1![United Airlines logo]()
$1,237
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/1612:46 pm -
2 stops26h 59m
Wed 9/231:35 pm -
1 stop25h 08m
Deal found 8/2![American Airlines logo]()
$1,244
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/161:13 pm -
2 stops26h 32m
Wed 9/231:35 pm -
2 stops25h 48m
Deal found 8/2![American Airlines logo]()
$1,244
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 August 6, 2026.
Search for one-way flight options from Missouri to Australia. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This American Airlines deal was found by Cheapflights users on 8/1. 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 8/312:09 pm -
2 stops25h 56m
Deal found 8/1![American Airlines logo]()
$623
This Bravofly deal was found by Cheapflights users on 8/5. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am -
1 stop34h 05m
Deal found 8/5![Qantas Airways logo]()
$635
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sun 8/168:42 am -
1 stop31h 13m
Deal found 8/5![United Airlines logo]()
$647
This Qantas Airways deal was found by Cheapflights users on 8/5. 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.
Thu 8/206:45 pm -
1 stop21h 10m
Deal found 8/5![Qantas Airways logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 8/311:38 pm -
3 stops52h 47m
Deal found 8/1![Multiple Airlines logo]()
$680
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:17 pm -
2 stops28h 13m
Deal found 8/5![Multiple Airlines logo]()
$688
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:10 pm -
2 stops44h 20m
Deal found 8/5![Multiple Airlines logo]()
$695
This American Airlines deal was found by Cheapflights users on 8/1. 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 11/12:54 pm -
2 stops25h 06m
Deal found 8/1![American Airlines logo]()
$705
This Delta deal was found by Cheapflights users on 8/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:00 am -
2 stops31h 50m
Deal found 8/5![Delta logo]()
$708
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:20 am -
2 stops30h 10m
Deal found 8/5![Multiple Airlines logo]()
$709
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:10 pm -
3 stops56h 00m
Deal found 8/5![Multiple Airlines logo]()
$713
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/131:02 pm -
2 stops51h 28m
Deal found 8/5![Multiple Airlines logo]()
$716
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 August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,237 (United Airlines) |
One-way from | $623 (American Airlines) |
Popular in | April |
Cheapest in | September |
Average price | $1,645 |
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 August 6, 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
Kansas CitySydney
MCI Kansas City - SYD Sydney Kingsford Smith
MCISYD
Kansas City
Mon 8/31
1:43 pm-6:55 am
2 stops26h 12m
Sydney Kingsford Smith
Mon 9/7
10:20 am-2:33 pm
1 stop19h 13m
$1,237
Kansas CityMelbourne
MCI Kansas City - MEL Melbourne
MCIMEL
Kansas City
Wed 11/18
4:00 pm-12:35 pm
2 stops27h 35m
Melbourne
Sat 11/21
12:10 pm-5:07 pm
2 stops45h 57m
$1,240
St. LouisSydney
STL Lambert-St Louis - SYD Sydney Kingsford Smith
STLSYD
Lambert-St Louis
Mon 8/31
4:40 pm-6:55 am
2 stops23h 15m
Sydney Kingsford Smith
Mon 9/7
10:20 am-11:01 pm
2 stops27h 41m
$1,241
Kansas CityMelbourne
MCI Kansas City - MEL Melbourne
MCIMEL
Kansas City
Mon 11/2
6:00 am-9:50 am
2 stops34h 50m
Melbourne
Mon 11/16
12:00 pm-2:49 pm
1 stop19h 49m
$1,262
Kansas CityMelbourne
MCI Kansas City - MEL Melbourne
MCIMEL
Kansas City
Mon 11/2
6:03 pm-10:30 am
1 stop23h 27m
Melbourne
Mon 11/16
12:45 pm-10:15 pm
1 stop26h 30m
$1,262
St. LouisMelbourne
STL Lambert-St Louis - MEL Melbourne
STLMEL
Lambert-St Louis
Tue 10/20
1:29 pm-9:15 am
2 stops27h 46m
Melbourne
Tue 11/3
12:45 pm-8:59 pm
2 stops25h 14m
$1,267
St. LouisMelbourne
STL Lambert-St Louis - MEL Melbourne
STLMEL
Lambert-St Louis
Sun 10/4
7:08 am-9:15 am
1 stop34h 07m
Melbourne
Mon 10/19
11:55 am-6:43 pm
1 stop22h 48m
$1,273
Kansas CityMelbourne
MCI Kansas City - MEL Melbourne
MCIMEL
Kansas City
Tue 9/1
3:29 pm-8:15 am
1 stop25h 46m
Melbourne
Mon 9/7
10:00 am-11:30 pm
3 stops52h 30m
$1,276
ColumbiaSydney
COU Columbia Regional - SYD Sydney Kingsford Smith
COUSYD
Columbia Regional
Wed 9/16
3:31 pm-6:55 am
2 stops24h 24m
Sydney Kingsford Smith
Wed 9/23
12:00 pm-4:19 pm
1 stop19h 19m
$1,308
Kansas CitySydney
MCI Kansas City - SYD Sydney Kingsford Smith
MCISYD
Kansas City
Tue 12/8
6:14 am-8:30 am
2 stops33h 16m
Sydney Kingsford Smith
Mon 1/11
10:40 am-2:47 pm
1 stop21h 07m
$1,312
Showing 1-10 of 49 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-SYD
STL-SYD
MCI-MEL
STL-MEL
COU-SYD
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-SYD
STL-SYD
MCI-MEL
STL-MEL
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 $1,118). Flying from Missouri to Australia in August is currently the most expensive (average of $1,554). 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.
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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 August 6, 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 2,558,603 searches. Data last updated August 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$857 | Average$1,476 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$894 | Average$1,006 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$917 | Average$1,386 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$962 | Average$1,361 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$1,006 | Average$1,423 | FlexibilityNo cancel fee | On-time69% |