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Perth

$1,028+ 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
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
1 adult, Economy
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Cheap flight deals from Missouri to Perth

Keep the following information in mind while searching for Missouri to Perth flight deals. Data was last updated January 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,530
(SmartFares)

One-way from

$1,028
(FlightHub)
Provider with most accurate pricing for Lambert-St Louis-Perth flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Perth flights.
Search Deals
From Missouri to Perth
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One-way flight from Missouri to Perth
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Find flight deals from Missouri to Perth

Cheapest flights from Missouri to Perth
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 January 16, 2026.

This SmartFares deal was found by Cheapflights users on 1/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/52:49 pm
MCI
-
PER
2 stops61h 56m
Multiple Airlines
Thu 4/303:40 pm
PER
-
MCI
2 stops45h 19m
Multiple Airlines
Deal found 1/14$1,530
This Cathay Pacific deal was found by Cheapflights users on 1/14. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:18 pm
STL
-
PER
2 stops38h 37m
Multiple Airlines
Fri 3/612:25 am
PER
-
STL
2 stops37h 34m
Multiple Airlines
Deal found 1/14$1,589
This KAYAK deal was found by Cheapflights users on 1/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:00 am
MCI
-
PER
2 stops50h 45m
Air New Zealand
Wed 9/3011:25 pm
PER
-
MCI
2 stops35h 42m
Air New Zealand
Deal found 1/15$1,743
This Cathay Pacific deal was found by Cheapflights users on 1/13. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/56:50 pm
STL
-
PER
2 stops38h 05m
Cathay Pacific
Mon 3/98:30 am
PER
-
STL
2 stops46h 28m
Cathay Pacific
Deal found 1/13$1,768
This Qantas Airways deal was found by Cheapflights users on 1/13. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:13 pm
MCI
-
PER
2 stops37h 07m
Qantas Airways
Wed 3/115:30 am
PER
-
MCI
2 stops26h 33m
Qantas Airways
Deal found 1/13$1,958
This Qantas Airways deal was found by Cheapflights users on 1/15. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/303:00 pm
MCI
-
PER
3 stops31h 15m
Multiple Airlines
Wed 9/306:20 am
PER
-
MCI
2 stops24h 49m
Multiple Airlines
Deal found 1/15$2,011
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/287:18 pm
MCI
-
PER
2 stops53h 12m
United Airlines
Sat 3/73:15 pm
PER
-
MCI
3 stops43h 44m
United Airlines
Deal found 1/14$2,119
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Thu 3/55:30 pm
MCI
-
PER
2 stops31h 15m
United Airlines
Thu 4/3011:45 pm
PER
-
MCI
3 stops36h 52m
United Airlines
Deal found 1/14$2,192
This Gotogate deal was found by Cheapflights users on 1/14. 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.
Thu 3/55:21 pm
MCI
-
PER
3 stops32h 34m
Air Canada
Thu 4/3010:40 pm
PER
-
MCI
3 stops37h 21m
Air Canada
Deal found 1/14$2,525
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Sun 3/85:21 pm
MCI
-
PER
3 stops32h 09m
United Airlines
Wed 3/1111:45 pm
PER
-
MCI
3 stops35h 14m
United Airlines
Deal found 1/13$2,799
This Air Canada deal was found by Cheapflights users on 1/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/54:05 pm
STL
-
PER
3 stops56h 25m
Air Canada
Mon 3/910:55 pm
PER
-
STL
3 stops53h 34m
Air Canada
Deal found 1/13$3,477
This KAYAK deal was found by Cheapflights users on 1/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/216:13 am
STL
-
PER
2 stops46h 32m
Qatar Airways
Thu 3/510:45 pm
PER
-
STL
2 stops51h 48m
Qatar Airways
Deal found 1/15$9,139

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 January 16, 2026.
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

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 2/28

6:18 pm-10:55 pm

2 stops38h 37m

Perth

Fri 3/6

12:25 am-11:59 pm

2 stops37h 34m

$1,589

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 3/5

6:50 pm-10:55 pm

2 stops38h 05m

Perth

Mon 3/9

8:30 am-5:58 pm

2 stops46h 28m

$1,768

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Sun 3/8

6:13 pm-8:20 pm

2 stops37h 07m

Perth

Wed 3/11

5:30 am-7:03 pm

2 stops26h 33m

$1,958

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Sat 2/28

7:18 pm-2:30 pm

2 stops53h 12m

Perth

Sat 3/7

3:15 pm-9:30 pm

2 stops44h 15m

$2,119

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Thu 3/5

5:30 pm-2:45 pm

2 stops31h 15m

Perth

Thu 4/30

11:45 pm-11:37 pm

3 stops36h 52m

$2,192

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Thu 3/5

5:21 pm-3:55 pm

3 stops32h 34m

Perth

Thu 4/30

10:40 pm-11:01 pm

3 stops37h 21m

$2,525

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Sun 3/8

5:21 pm-2:30 pm

3 stops32h 09m

Perth

Wed 3/11

11:45 pm-9:59 pm

3 stops35h 14m

$2,799

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 2/21

6:13 am-6:45 pm

2 stops46h 32m

Perth

Thu 3/5

10:45 pm-12:33 pm

2 stops51h 48m

$9,139

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 2/21

1:30 pm-6:45 pm

2 stops39h 15m

Perth

Fri 3/6

10:45 pm-11:44 am

2 stops50h 59m

$9,139

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 2/21

5:29 pm-1:45 pm

2 stops30h 16m

Perth

Thu 3/5

11:45 pm-4:59 pm

3 stops31h 14m

$10,663

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 17 results
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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
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.

  • What airport do you fly into for flights to Perth from Missouri?

    For a flight from Missouri to Perth, you will be flying into Perth. Perth (PER) is just 6.3 mi from the center of the city.

  • How long is the flight from Missouri to Perth?

    For as low as $1,958, Cathay Pacific can have you in Perth from Missouri in 37h 07m. The distance between Missouri and Perth is about 10642 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Missouri to Perth that include hotel bookings?

    Yes. In addition to deals on Missouri to Perth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Perth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Perth.

  • Can I find deals for business class flights from Missouri to Perth?

    Yes. Cheapflights offers flight deals from Missouri to Perth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Fremantle
Rottnest Island
Scarborough

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