$831 Cheap flight deals from St. Louis (STL) to Perth (PER)

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Airfares from $831 One Way, $1,716 Round Trip from St. Louis to Perth

Prices starting at $1,716 for return flights and $831 for one-way flights to Perth were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Feb 23 - Wed, Mar 4
STL
St. Louis
PER
Perth
$1,716 Roundtrip, just found
$1,716
Roundtrip
just found
Select Qantas Airways flight, departing Mon, Feb 23 from St. Louis to Perth, returning Wed, Mar 4, priced at $1,716 just found
Tue, Mar 10 - Tue, Mar 17
STL
St. Louis
PER
Perth
$1,731 Roundtrip, found 3 days ago
$1,731
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Tue, Mar 10 from St. Louis to Perth, returning Tue, Mar 17, priced at $1,731 found 3 days ago
Wed, Mar 11 - Wed, Mar 18
STL
St. Louis
PER
Perth
$1,739 Roundtrip, found 3 days ago
$1,739
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Wed, Mar 11 from St. Louis to Perth, returning Wed, Mar 18, priced at $1,739 found 3 days ago
Tue, Mar 10 - Tue, Mar 17
STL
St. Louis
PER
Perth
$1,742 Roundtrip, found 3 days ago
$1,742
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Tue, Mar 10 from St. Louis to Perth, returning Tue, Mar 17, priced at $1,742 found 3 days ago
Tue, Mar 10 - Tue, Mar 17
STL
St. Louis
PER
Perth
$1,744 Roundtrip, found 3 days ago
$1,744
Roundtrip
found 3 days ago
Select Qantas Airways flight, departing Tue, Mar 10 from St. Louis to Perth, returning Tue, Mar 17, priced at $1,744 found 3 days ago

More About Flying To Perth from St. Louis

Route Information for Flights from St. Louis to Perth

Origin Airport IATA Code
STL
Destination Airport IATA Code
PER
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

St. Louis to Perth

For the best travel experience from St. Louis to Perth domestic and international travelers everywhere choose Orbitz for guaranteed low prices and cutting-edge mobile tools.

Convenient Low-Cost Travel

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Earn Rewards on Your St. Louis to Perth Flights

At Orbitz you can benefit from low cost travel and have your loyalty rewarded on certain types of St. Louis to Perth flights. All you need to do is enter you frequent flyer number when booking and rack up your rewards through Orbitz online on the Traveler Information page for use on future flights. You can even add your frequent flyer number to an existing reservation to start the ball rolling.

Frequently asked questions

What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.