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Perth

$799+ 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
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This lol.travel deal was found by Cheapflights users on 10/29. 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 11/35:58 pmSTL - PER
2 stops38h 57mCathay Pacific
Mon 11/1012:25 amPER - STL
2 stops30h 22mCathay Pacific
Deal found 10/29$1,362
This Cathay Pacific deal was found by Cheapflights users on 10/27. 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 11/137:00 amSTL - PER
2 stops33h 55mCathay Pacific
Sun 11/1612:25 amPER - STL
2 stops36h 33mCathay Pacific
Deal found 10/27$1,651
This lol.travel deal was found by Cheapflights users on 10/29. 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 11/31:20 pmSTL - PER
2 stops28h 25mQantas Airways
Tue 11/118:00 amPER - STL
2 stops29h 42mQantas Airways
Deal found 10/29$1,799
This Qantas Airways deal was found by Cheapflights users on 10/27. 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 11/137:00 amSTL - PER
2 stops47h 20mQantas Airways
Mon 11/173:20 pmPER - STL
2 stops46h 22mQantas Airways
Deal found 10/27$1,803
This Jetabroad deal was found by Cheapflights users on 10/28. 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 12/123:04 pmMCI - PER
2 stops33h 26mQantas Airways
Mon 1/510:45 pmPER - MCI
2 stops36h 42mQantas Airways
Deal found 10/28$1,906
This Aunt Betty deal was found by Cheapflights users on 10/28. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/121:40 pmMCI - PER
3 stops36h 15mAir Canada
Thu 1/1510:30 pmPER - MCI
3 stops36h 03mAir Canada
Deal found 10/28$2,576
This Qantas Airways deal was found by Cheapflights users on 10/28. 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 12/125:38 pmMCI - PER
2 stops28h 27mQantas Airways
Thu 1/1510:40 pmPER - MCI
2 stops32h 07mQantas Airways
Deal found 10/28$2,622
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/127:30 amMCI - PER
2 stops31h 55mUnited Airlines
Thu 1/1511:45 pmPER - MCI
3 stops36h 14mUnited Airlines
Deal found 10/28$2,662
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/127:30 amMCI - PER
2 stops43h 20mUnited Airlines
Fri 12/1911:55 pmPER - MCI
2 stops28h 18mUnited Airlines
Deal found 10/28$2,865
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/127:30 amMCI - PER
2 stops31h 55mUnited Airlines
Mon 1/511:45 pmPER - MCI
3 stops36h 14mUnited Airlines
Deal found 10/28$3,200
This Air Canada deal was found by Cheapflights users on 10/27. 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 11/134:05 pmSTL - PER
3 stops62h 15mAir Canada
Mon 11/1710:55 pmPER - STL
3 stops54h 34mAir Canada
Deal found 10/27$3,760
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/311:33 amSTL - PER
3 stops34h 52mAmerican Airlines
Tue 11/118:00 amPER - STL
2 stops29h 42mAmerican Airlines
Deal found 10/29$4,082

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 October 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,585
(Orbitz)

One-way from

$799
(oojo)
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
Search Deals
One-way flight from Missouri to Perth
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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 October 30, 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

Tue 2/10

2:45 pm-11:55 am

2 stops55h 10m

Perth

Fri 2/20

10:45 pm-1:42 pm

2 stops52h 57m

$1,585

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 11/13

7:00 am-10:55 pm

2 stops49h 55m

Perth

Sun 11/16

12:25 am-10:58 pm

2 stops36h 33m

$1,651

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Fri 3/6

2:11 pm-7:45 pm

2 stops39h 34m

Perth

Mon 3/9

1:25 pm-4:01 pm

2 stops39h 36m

$1,793

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 11/13

7:00 am-8:20 pm

2 stops47h 20m

Perth

Mon 11/17

3:20 pm-11:42 pm

2 stops46h 22m

$1,803

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Fri 3/6

7:25 am-2:45 pm

2 stops41h 20m

Perth

Mon 3/9

11:45 pm-9:35 pm

3 stops34h 50m

$2,028

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Tue 2/10

4:25 pm-2:30 pm

2 stops32h 05m

Perth

Fri 2/20

11:45 pm-9:59 pm

3 stops36h 14m

$2,143

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Fri 12/12

1:40 pm-3:55 pm

3 stops36h 15m

Perth

Thu 1/15

10:30 pm-8:33 pm

3 stops36h 03m

$2,576

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Fri 12/12

5:38 pm-12:05 pm

2 stops28h 27m

Perth

Thu 1/15

10:40 pm-4:47 pm

2 stops32h 07m

$2,622

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Sat 12/20

1:59 pm-10:10 am

2 stops30h 11m

Perth

Wed 12/31

5:00 am-4:42 pm

2 stops25h 42m

$2,637

Kansas CityPerth

MCI - PER

MCIPER

Kansas City

Fri 12/12

7:30 am-5:25 am

2 stops31h 55m

Perth

Thu 1/15

11:45 pm-9:59 pm

3 stops36h 14m

$2,662

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 14 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

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 October 30, 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.

  • 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 $1,793, Cathay Pacific can have you in Perth from Missouri in 39h 34m. 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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