STL - PER

$1,384 Find Cheap Flights from St. Louis to Perth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Perth departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Perth

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Perth, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Perth, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$1,384
Cathay Pacific
Tue 11/11Mon 11/17
STL - PER • 2 stops
Cheapest one-way
Multiple Airlines
Wed 10/15
STL - PER • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Perth!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Perth (STL-PER)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Perth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Perth

Tue, Nov 11 - Mon, Nov 17
Cathay Pacific Logo
3:59 pm - 10:55 pmSTL-PER
40h 56m2 stops
Cathay Pacific Logo
12:25 am - 4:47 pmPER-STL
30h 22m2 stops
$1,384Cathay Pacific
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Thu, Nov 13 - Mon, Nov 17
Cathay Pacific Logo
8:39 am - 10:55 pmSTL-PER
48h 16m2 stops
Cathay Pacific Logo
8:30 am - 4:47 pmPER-STL
46h 17m2 stops
$1,425Cathay Pacific
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Thu, Nov 13 - Mon, Nov 17
Cathay Pacific Logo
7:00 am - 10:55 pmSTL-PER
49h 55m2 stops
Cathay Pacific Logo
8:30 am - 4:47 pmPER-STL
46h 17m2 stops
$1,499Cathay Pacific
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Thu, Nov 27 - Thu, Dec 4
Multiple Airlines Logo
7:00 am - 6:55 amSTL-PER
33h 55m2 stops
Multiple Airlines Logo
8:30 am - 11:57 pmPER-STL
29h 27m2 stops
$1,615Multiple Airlines
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Thu, Nov 13 - Sun, Nov 16
Cathay Pacific Logo
7:00 am - 6:55 amSTL-PER
33h 55m2 stops
Cathay Pacific Logo
12:25 am - 10:58 pmPER-STL
36h 33m2 stops
$1,651Cathay Pacific
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Thu, Nov 27 - Wed, Dec 3
Multiple Airlines Logo
7:00 am - 6:55 amSTL-PER
33h 55m2 stops
Multiple Airlines Logo
12:25 am - 11:57 pmPER-STL
37h 32m2 stops
$1,775Multiple Airlines
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Wed, Nov 26 - Fri, Jan 9
United Airlines Logo
5:29 pm - 2:45 pmSTL-PER
31h 16m2 stops
United Airlines Logo
11:30 pm - 5:11 amPER-STL
43h 41m2 stops
$1,986United Airlines
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Fri, Nov 28 - Fri, Dec 5
Qantas Airways Logo
7:00 am - 6:15 pmSTL-PER
45h 15m2 stops
Qantas Airways Logo
9:15 am - 12:41 pmPER-STL
41h 26m3 stops
$2,139Qantas Airways
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Tue, Nov 11 - Tue, Nov 18
Air New Zealand Logo
5:29 pm - 9:35 pmSTL-PER
38h 06m2 stops
Air New Zealand Logo
10:55 pm - 10:22 pmPER-STL
37h 27m3 stops
$2,430Air New Zealand
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Wed, Nov 26 - Fri, Jan 9
Qantas Airways Logo
3:59 pm - 8:20 pmSTL-PER
38h 21m2 stops
Qantas Airways Logo
10:45 pm - 4:14 pmPER-STL
31h 29m3 stops
$3,442Qantas Airways
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Booking Insights

KAYAK's insights & trends for St. Louis to Perth flights

Get data-powered insights and trends into flights from St. Louis to Perth to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from St. Louis to Perth?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Perth were found on Cathay Pacific ($1,384) and United Airlines ($1,986).

Find deals

Good to know

Cheapest flight$1,384
Flight from St. Louis to Perth

When to book flights from St. Louis to Perth

Are your dates flexible? Find out the best times to travel from St. Louis to Perth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Perth

  • What is the cheapest flight from St. Louis to Perth?

    In the last 3 days, the lowest price for a flight from St. Louis to Perth was $1,384 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Perth?

    A passport is required to fly from St. Louis to Perth.

  • Which airports will I be using when flying from St. Louis to Perth?

    St. Louis and Perth are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Perth.

  • Which aircraft models fly most regularly from St. Louis to Perth?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from St. Louis to Perth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Perth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Perth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Perth from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Perth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Perth with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and PER can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Perth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Perth from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from St. Louis to Perth

Information on your arrival and departure airports

St. Louis (STL)
Perth (PER)

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