Menu

Cheap flights from St Louis (STL) to Perth (PER)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
St Louis (STL) to Perth (PER)

What is the cheapest day to fly round-trip from St Louis to Perth?

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 5% on the overall cost on flights from St Louis to Perth.

What is the cheapest month to fly from St Louis to Perth?

June is one of the best times of the year to fly to Perth from St Louis. Prices for June average $1262 per person but you can even find prices for as low as $867. The most expensive prices can be found in the month of September. Opting for a June flight can save you 35% on your journey compared to booking in June

When is the cheapest time to fly from St Louis to Perth (STL - PER)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St Louis to Perth as you normally would.

Cheap flights from St Louis to Perth in August, September 2020

The best prices found for STL to PER flights for August, September
15 Aug - 22 Aug
$1956pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
PER
Perth
PER
Perth
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
4 Aug - 20 Aug
$6407pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
PER
Perth
PER
Perth
Qatar Airways
   
2 STOPS
STL
Lambert-St Louis
4 Aug - 20 Aug
$7799pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
PER
Perth
PER
Perth
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis

St Louis to Perth 2020 flight deals

Cheap flights to Perth from St Louis found for this year
15 Aug - 22 Aug
$1956pp
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
PER
Perth
PER
Perth
Multiple Airlines
     
3 STOPS
STL
Lambert-St Louis
16 Dec - 22 Dec
$2461pp
STL
Lambert-St Louis
Cathay Pacific
   
2 STOPS
PER
Perth
PER
Perth
Cathay Pacific
   
2 STOPS
STL
Lambert-St Louis
16 Dec - 23 Dec
$2488pp
STL
Lambert-St Louis
Qatar Airways
   
2 STOPS
PER
Perth
PER
Perth
Qatar Airways
   
2 STOPS
STL
Lambert-St Louis

One-way flights to Perth from St Louis

The cheapest one-way flights from St Louis to Perth
3:41 am - 1:50 am
Multiple Airlines
2 Stops
33h 09m
STL - PER
Multiple Airlines
10:40 am - 8:30 am
Delta
3 Stops
56h 50m
STL - PER
Delta
$1257
Delta
9:31 am - 2:20 pm
Qatar Airways
2 Stops
39h 49m
STL - PER
Qatar Airways
$1405
Vayama

Related info for your journey

Useful info, stats and facts about St Louis to Perth flights.

Flight FAQs

From St Louis to Perth

Are flight prices decreasing from St Louis to Perth due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both St Louis and Perth for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from St Louis to Perth for under $2000 on Cheapflights?

Yes, there are multiple flights from St Louis to Perth for under $2000. The cheapest flight booked recently is on Multiple Airlines for just $1956, but on average you can expect to pay $4629.

Are there nonstop flights from St Louis to Perth for under $2000 on Cheapflights?

There are no nonstop flights from St Louis to Perth, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Does it rain more in St Louis or Perth?

The rainfall in St Louis is generally more than the rainfall in Perth. This will continue over the next 12 days.

Is St Louis weather warmer or cooler than Perth?

With an average temperature of 90 °F, peak weather can be found in January. As a traveler, expect to see changes in flight prices during that period. The temperatures in Perth are hotter than in St Louis.

How long is the flight from St Louis to Perth?

Departing from St Louis to Perth will take you 32h 45m. This flight may include one or multiple stops.

What are the cheapest airlines flying from St Louis to Perth round-trip?

Our cheapest airline available from St Louis to Perth is Cathay Pacific. Our recent data shows that you can find tickets from as low as $2461 on this airline. Additional options worth looking into are Qatar Airways and Delta, starting at $2488 and $2738 round-trip.

What are the cheapest airlines to fly from St Louis to Perth one-way?

To fly one-way, consider booking your trip with Cathay Pacific, which is currently one of the cheapest options available, starting at $1254. Delta flights start at $1257 while deals on Qatar Airways start at $1405 one-way.

Destination information for Perth

Things to know before you go. Useful info for your trip from St Louis to Perth
Today's exchange rate
$1 = $1.39
Average temperature for August in Perth
66.2 °F
Avg rainfall for August in Perth
4.4 ″

Airports servicing St. Louis

Airports servicing Perth