$722+ Cheap flights from Missouri to Perth (PER)
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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PER
May 17 — May 241
Round-trip
1 adult, Economy
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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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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 Perth
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Last-minute
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Cheapest flights from Missouri to PerthExplore the most affordable flight options available from Missouri to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
Explore the most affordable flight options available from Missouri to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
This oojo deal was found by Cheapflights users on 4/17. 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.
Mon 10/267:00 am
STL
- PER
2 stops46h 45m
Qatar Airways
Mon 11/910:45 pm
PER
- STL
2 stops39h 14m
Qatar Airways
Deal found 4/17![Qatar Airways logo]()
$1,433
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:02 am
STL
- PER
2 stops47h 33m
Qatar Airways
Mon 9/2110:45 pm
PER
- STL
2 stops38h 14m
Qatar Airways
Deal found 4/14![Qatar Airways logo]()
$1,481
This Travelocity deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:02 am
STL
- PER
2 stops47h 33m
Multiple Airlines
Sun 9/2010:45 pm
PER
- STL
2 stops38h 14m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,512
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:02 am
STL
- PER
2 stops47h 33m
Qatar Airways
Sun 9/2010:45 pm
PER
- STL
2 stops38h 14m
Qatar Airways
Deal found 4/14![Qatar Airways logo]()
$1,522
This Qatar Airways deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:00 am
MCI
- PER
2 stops46h 45m
Qatar Airways
Tue 11/310:45 pm
PER
- MCI
2 stops38h 51m
Qatar Airways
Deal found 4/12![Qatar Airways logo]()
$1,534
This Qatar Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:02 am
STL
- PER
2 stops47h 33m
Qatar Airways
Mon 9/2110:45 pm
PER
- STL
2 stops38h 14m
Qatar Airways
Deal found 4/13![Qatar Airways logo]()
$1,571
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:11 pm
STL
- PER
2 stops33h 49m
Qantas Airways
Fri 5/1510:30 am
PER
- STL
2 stops26h 29m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,677
This Qatar Airways deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:50 pm
STL
- PER
2 stops37h 55m
Qatar Airways
Wed 11/1110:45 pm
PER
- STL
2 stops39h 14m
Qatar Airways
Deal found 4/12![Qatar Airways logo]()
$1,766
This United Airlines deal was found by Cheapflights users on 4/17. 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 10/267:06 pm
STL
- PER
2 stops30h 39m
United Airlines
Mon 11/911:45 pm
PER
- STL
3 stops53h 53m
United Airlines
Deal found 4/17![United Airlines logo]()
$1,826
This oojo deal was found by Cheapflights users on 4/17. 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.
Fri 7/36:36 am
STL
- PER
2 stops40h 29m
Qantas Airways
Fri 7/175:55 pm
PER
- STL
2 stops37h 39m
Qantas Airways
Deal found 4/17![Qantas Airways logo]()
$1,845
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:06 pm
STL
- PER
2 stops29h 39m
United Airlines
Thu 11/1911:45 pm
PER
- STL
2 stops32h 08m
United Airlines
Deal found 4/15![United Airlines logo]()
$1,855
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:35 pm
MCI
- PER
2 stops34h 10m
United Airlines
Tue 11/310:55 pm
PER
- MCI
3 stops38h 42m
United Airlines
Deal found 4/15![United Airlines logo]()
$1,862
Best flights from Missouri to PerthDiscover carefully curated flight deals from Missouri to Perth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from Missouri to Perth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This oojo deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:02 am
STL
- PER
2 stops47h 33m
Qatar Airways
Mon 9/2110:45 pm
PER
- STL
2 stops38h 14m
Qatar Airways
Deal found 4/15![Qatar Airways logo]()
$1,481
This oojo deal was found by Cheapflights users on 4/17. 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.
Fri 7/36:36 am
STL
- PER
2 stops40h 29m
Qantas Airways
Fri 7/175:55 pm
PER
- STL
2 stops37h 39m
Qantas Airways
Deal found 4/17![Qantas Airways logo]()
$1,845
This BusinessClass deal was found by Cheapflights users on 4/17. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:02 pm
STL
- PER
3 stops32h 28m
Multiple Airlines
Mon 9/2111:55 pm
PER
- STL
2 stops31h 29m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,872
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:26 pm
MCI
- PER
2 stops31h 04m
United Airlines
Sat 6/61:15 pm
PER
- MCI
3 stops47h 10m
United Airlines
Deal found 4/14![United Airlines logo]()
$1,941
This Qatar Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:02 am
STL
- PER
2 stops47h 33m
Qatar Airways
Mon 9/2110:45 pm
PER
- STL
2 stops38h 14m
Qatar Airways
Deal found 4/13![Qatar Airways logo]()
$1,571
This Qatar Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
STL
- PER
2 stops47h 35m
Qatar Airways
Mon 9/2110:45 pm
PER
- STL
2 stops38h 14m
Qatar Airways
Deal found 4/13![Qatar Airways logo]()
$1,571
This Qantas Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:11 pm
STL
- PER
2 stops30h 24m
Qantas Airways
Tue 5/1910:30 am
PER
- STL
2 stops26h 29m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,897
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:59 pm
MCI
- PER
2 stops27h 31m
United Airlines
Fri 6/511:55 pm
PER
- MCI
3 stops36h 30m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,991
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:02 pm
STL
- PER
3 stops32h 28m
United Airlines
Mon 9/2111:55 pm
PER
- STL
3 stops29h 36m
United Airlines
Deal found 4/13![United Airlines logo]()
$2,016
Last-minute flights from Missouri to PerthDiscover last-minute flight deals from Missouri to Perth. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Perth. Data last updated April 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:38 pm
STL
- PER
2 stops30h 37m
American Airlines
Thu 5/711:45 pm
PER
- STL
2 stops36h 14m
American Airlines
Deal found 4/14![American Airlines logo]()
$2,155
This Air New Zealand deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:35 pm
STL
- PER
3 stops36h 25m
Multiple Airlines
Thu 5/711:50 pm
PER
- STL
2 stops35h 40m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$2,857
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:11 pm
STL
- PER
2 stops33h 49m
Qantas Airways
Fri 5/1510:30 am
PER
- STL
2 stops26h 29m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,677
This Qantas Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/84:30 pm
STL
- PER
3 stops32h 05m
Multiple Airlines
Fri 5/1510:30 am
PER
- STL
2 stops26h 29m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$2,401
This Qantas Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:11 pm
STL
- PER
2 stops30h 24m
Qantas Airways
Tue 5/1910:30 am
PER
- STL
2 stops26h 29m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,897
This Gotogate deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:30 am
STL
- PER
2 stops40h 05m
Air New Zealand
Tue 5/1911:55 pm
PER
- STL
3 stops35h 35m
Air New Zealand
Deal found 4/14![Air New Zealand logo]()
$2,267
This Mytrip deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:06 pm
STL
- PER
3 stops34h 39m
Multiple Airlines
Tue 5/192:35 pm
PER
- STL
3 stops39h 22m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$2,534
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:59 pm
MCI
- PER
2 stops27h 31m
United Airlines
Fri 6/511:55 pm
PER
- MCI
2 stops28h 50m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,991
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:26 pm
MCI
- PER
2 stops31h 04m
United Airlines
Sat 6/61:15 pm
PER
- MCI
3 stops47h 10m
United Airlines
Deal found 4/14![United Airlines logo]()
$1,941
One-way flights from Missouri to PerthSearch for one-way flight options from Missouri to Perth. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Missouri to Perth. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Wed 8/128:08 pm
STL
- PER
3 stops46h 07m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$722
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Fri 5/159:18 pm
STL
- PER
3 stops51h 47m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$837
This oojo deal was found by Cheapflights users on 4/16. 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.
Fri 5/156:21 am
STL
- PER
2 stops39h 54m
Qantas Airways
Deal found 4/16![Qantas Airways logo]()
$1,065
Find flight deals from Missouri to Perth
Keep the following information in mind while searching for Missouri to Perth flight deals. Data was last updated April 17, 2026.
Round-trip from | $1,481 (oojo) |
|---|---|
One-way from | $722 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri to Perth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
Use the filters below to find and compare flights from Missouri to Perth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Tue 8/18
6:02 am-6:35 pm
2 stops47h 33m
Perth
Mon 9/21
10:45 pm-11:59 pm
2 stops38h 14m
$1,481
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Mon 8/17
6:02 am-6:35 pm
2 stops47h 33m
Perth
Mon 9/21
10:45 pm-11:59 pm
2 stops38h 14m
$1,571
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Wed 8/19
6:00 am-6:35 pm
2 stops47h 35m
Perth
Mon 9/21
10:45 pm-11:59 pm
2 stops38h 14m
$1,571
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Fri 7/3
6:36 am-12:05 pm
2 stops40h 29m
Perth
Fri 7/17
5:55 pm-6:34 pm
2 stops37h 39m
$1,845
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Tue 8/18
3:02 pm-12:30 pm
3 stops32h 28m
Perth
Mon 9/21
11:55 pm-6:24 pm
2 stops31h 29m
$1,872
Quickest round-trip
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Tue 5/12
6:11 pm-1:35 pm
2 stops30h 24m
Perth
Tue 5/19
10:30 am-11:59 pm
2 stops26h 29m
$1,897
Kansas CityPerth
MCI - PER
MCIPER
Kansas City
Sat 5/30
4:26 pm-12:30 pm
2 stops31h 04m
Perth
Sat 6/6
1:15 pm-11:25 pm
3 stops47h 10m
$1,941
Kansas CityPerth
MCI - PER
MCIPER
Kansas City
Fri 5/29
7:59 pm-12:30 pm
2 stops27h 31m
Perth
Fri 6/5
11:55 pm-11:25 pm
3 stops36h 30m
$1,991
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Tue 8/18
3:02 pm-12:30 pm
3 stops32h 28m
Perth
Mon 9/21
11:55 pm-4:31 pm
3 stops29h 36m
$2,016
Cheapest one-way
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Fri 5/15
9:18 pm-2:05 pm
3 stops51h 47m
$837
Showing 1-10 of 12 resultsSorted by cheapest first
Best time to book a flight from Missouri to Perth
Have a flexible travel schedule? Discover the best time to fly to Perth from Missouri with our price prediction graph.
STL-PER
MCI-PER
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 Perth
USMO-PER
STL-PER
MCI-PER
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Perth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Perth?
Book flights to Perth if you plan to visit one of these locationsRottnest Island
Scarborough
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Alternative routes for Missouri to Perth
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Complete your trip
Complete your trip to Perth by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to Perth by cabin class
Find flights from Missouri to Perth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and Perth flights
Browse other Missouri and Perth flight options. Last updated on April 17, 2026.
Other flights to Perth
Explore flights to Perth departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Missouri to Perth
Discover the top airline that operate flights from Missouri to Perth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,545 | Average$1,924 | FlexibilityNo cancel fee | On-time74% |