$921+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PER
Jan 11 — Jan 181
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Missouri to Perth with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to Perth
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 December 12, 2025.
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 December 12, 2025.
This SmartFares deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” 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.
Wed 12/245:26 pmSTL - PER
2 stops52h 29mMultiple Airlines
Sun 1/43:55 pmPER - STL
2 stops46h 04mMultiple Airlines
Deal found 12/11![Multiple Airlines logo]()
$3,059
This oojo deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” 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 12/247:00 amSTL - PER
2 stops38h 55mQatar Airways
Sun 1/43:55 pmPER - STL
2 stops46h 04mQatar Airways
Deal found 12/11![Qatar Airways logo]()
$3,202
This KAYAK deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:30 pmSTL - PER
2 stops35h 50mQantas Airways
Sun 1/410:40 pmPER - STL
3 stops63h 19mQantas Airways
Deal found 12/11![Qantas Airways logo]()
$3,812
This oojo deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” 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 12/269:36 amSTL - PER
2 stops47h 19mCathay Pacific
Tue 12/3012:25 amPER - STL
2 stops29h 58mCathay Pacific
Deal found 12/11![Cathay Pacific logo]()
$7,391
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” 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 12/263:10 pmSTL - PER
3 stops31h 20mUnited Airlines
Wed 12/317:20 amPER - STL
3 stops29h 02mUnited Airlines
Deal found 12/11![United Airlines logo]()
$12,089
This Jetabroad deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:26 pmSTL - PER
3 stops47h 29mMultiple Airlines
Tue 12/3012:25 amPER - STL
2 stops29h 58mMultiple Airlines
Deal found 12/11![Multiple Airlines logo]()
$12,625
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 December 12, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $1,687 (Priceline) |
One-way from | $921 (FlightHub) |
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 December 12, 2025.
Use the filters below to find and compare flights from Missouri to Perth that are best for you.
Fly from
Missouri
Fly to
Perth
Route
Depart
Return
Price
Kansas CityPerth
MCI - PER
MCIPER
Kansas City
Sun 1/25
1:56 pm-9:35 pm
2 stops41h 39m
Perth
Sun 2/1
11:10 pm-9:27 pm
2 stops36h 17m
$1,687
Kansas CityPerth
MCI - PER
MCIPER
Kansas City
Sun 1/25
5:10 pm-11:20 am
3 stops52h 10m
Perth
Sun 2/1
11:45 pm-7:13 pm
2 stops33h 28m
$1,813
Kansas CityPerth
MCI - PER
MCIPER
Kansas City
Tue 1/13
7:00 am-2:30 pm
2 stops41h 30m
Perth
Tue 1/20
10:30 pm-7:13 pm
2 stops34h 43m
$2,200
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Wed 1/28
5:12 pm-6:15 pm
2 stops35h 03m
Perth
Thu 2/12
5:45 pm-5:05 pm
2 stops37h 20m
$7,042
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Tue 2/3
5:04 pm-4:45 pm
2 stops33h 41m
Perth
Thu 2/12
5:45 pm-5:05 pm
2 stops37h 20m
$7,042
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Thu 1/29
7:04 am-10:55 pm
2 stops49h 51m
Perth
Tue 2/10
12:25 am-6:14 pm
2 stops31h 49m
$7,139
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Tue 2/3
5:04 pm-6:15 pm
2 stops35h 11m
Perth
Mon 2/9
10:40 pm-11:59 pm
2 stops39h 19m
$7,236
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Wed 1/28
5:12 pm-6:15 pm
2 stops35h 03m
Perth
Mon 2/9
10:40 pm-11:59 pm
2 stops39h 19m
$7,236
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Tue 2/3
5:04 pm-12:05 pm
2 stops29h 01m
Perth
Tue 2/10
10:40 pm-11:59 pm
2 stops39h 19m
$7,236
St. LouisPerth
STL - PER
STLPER
Lambert-St Louis
Wed 1/28
5:12 pm-12:05 pm
2 stops28h 53m
Perth
Tue 2/10
10:40 pm-11:59 pm
2 stops39h 19m
$7,236
Showing 1-10 of 18 results
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.
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
What is the cheapest time of day to fly from MO to PER?
Find hourly flight availability from Missouri to Perth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.
It’s typically best to fly out from Missouri to Perth in the morning. Doing so could potentially save you 34% on the flight price compared to flying in the evening, which is usually more expensive.
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 locationsFremantle
Rottnest Island
Scarborough