Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from St. Louis to Perth from $1,418

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Perth departing on 17/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from St. Louis to Perth

Cheap return flights

These are some of the best return flight deals from St. Louis to Perth that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Perth.

Cheap last-minute flights

Planning a quick getaway from St. Louis to Perth? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Perth, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from St. Louis to Perth

Find recent return train or bus tickets from St. Louis to Perth.

All return flight deals from St. Louis to Perth

The cheapest plane tickets from St. Louis to Perth found on KAYAK recently.
06:44 - 18:35STL-PER
46h 51m2 stops
22:45 - 23:59PER-STL
38h 14m2 stops
$2,672Qatar Airways
Find Deal
Fri, 4 Apr - Fri, 11 Apr
06:44 - 18:35STL-PER
46h 51m2 stops
22:45 - 23:59PER-STL
38h 14m2 stops
$3,017Qatar Airways
Find Deal
Fri, 4 Apr - Thu, 10 Apr
19:10 - 13:35STL-PER
29h 25m2 stops
08:05 - 22:06PER-STL
27h 01m2 stops
$3,181Air New Zealand
Find Deal
Sat, 24 May - Sun, 3 Aug
13:30 - 16:00STL-PER
37h 30m3 stops
08:05 - 20:21PER-STL
25h 16m2 stops
$3,434
Find Deal
Sat, 24 May - Sun, 3 Aug
13:30 - 16:00STL-PER
37h 30m3 stops
19:50 - 23:18PER-STL
40h 28m3 stops
$3,478
Find Deal
Sat, 24 May - Sun, 3 Aug
15:50 - 15:45STL-PER
58h 55m3 stops
23:55 - 14:59PER-STL
52h 04m3 stops
$3,861Air Canada
Find Deal
Fri, 4 Apr - Thu, 10 Apr
12:02 - 07:55STL-PER
30h 53m2 stops
01:10 - 23:59PER-STL
35h 49m2 stops
$3,887
Find Deal
Fri, 4 Apr - Wed, 9 Apr
06:09 - 05:10STL-PER
34h 01m2 stops
01:10 - 04:58PER-STL
40h 48m2 stops
$4,036United Airlines
Find Deal
Sat, 24 May - Sat, 2 Aug
17:54 - 14:40STL-PER
31h 46m2 stops
01:10 - 16:52PER-STL
28h 42m2 stops
$21,167United Airlines
Find Deal
Fri, 4 Apr - Tue, 8 Apr
13:43 - 12:55STL-PER
34h 12m3 stops
01:10 - 21:50PER-STL
33h 40m3 stops
$30,228Air Canada
Find Deal
Fri, 4 Apr - Wed, 9 Apr
09:25 - 18:45STL-PER
43h 20m2 stops
$1,418Qatar Airways
Find Deal
Mon, 17 Feb
08:05 - 16:55STL-PER
42h 50m3 stops
$2,106
Find Deal
Mon, 17 Feb

United Airlines flights from St. Louis to Perth

Our best United Airlines deals on St. Louis to Perth flight tickets
United Airlines
24 May
STL06:09Lambert-St Louis
34h 01m
2 stops
PER05:10Perth
2 Aug
PER01:10Perth
40h 48m
2 stops
STL04:58Lambert-St Louis
United Airlines
4 Apr
STL17:54Lambert-St Louis
31h 46m
2 stops
PER14:40Perth
8 Apr
PER01:10Perth
28h 42m
2 stops
STL16:52Lambert-St Louis
United Airlines
4 Apr
STL17:54Lambert-St Louis
31h 46m
2 stops
PER14:40Perth
10 Apr
PER01:10Perth
28h 42m
2 stops
STL16:52Lambert-St Louis

Qatar Airways flights from St. Louis to Perth

Our best Qatar Airways deals on St. Louis to Perth flight tickets
Qatar Airways
4 Apr
STL06:44Lambert-St Louis
46h 51m
2 stops
PER18:35Perth
11 Apr
PER22:45Perth
38h 14m
2 stops
STL23:59Lambert-St Louis
Qatar Airways
4 Apr
STL06:44Lambert-St Louis
46h 51m
2 stops
PER18:35Perth
10 Apr
PER22:45Perth
38h 14m
2 stops
STL23:59Lambert-St Louis

See travel insights to Perth from

How to get the cheapest flight ticket from St. Louis to Perth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Perth?

The cheapest day to depart from St. Louis to Perth is on a Tuesday. Travellers who choose to depart for Perth on a Tuesday will often find tickets for as low as $0. The most expensive day to fly to Perth is Monday, with ticket prices averaging around $3,067.

What is the cheapest time of day to depart on your flight to Perth?

In the morning is the cheapest time of day to fly from St. Louis to Perth when you can find flight prices for as low as $0. Flying to Perth in the morning is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive, with an average ticket price of $3,067.

When to book flights from St. Louis to Perth

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Perth according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap St. Louis to Perth (STL to PER) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Perth

Best price found

$1,418

Fastest flight time

29h 25m

Direct flights

None

Airports in Perth

1 airport
The best one-way flight to Perth from St. Louis in the past 72 hours is $1,418. The best return flight deal from St. Louis to Perth found on momondo in the last 72 hours is $2,672.
The fastest flight from St. Louis to Perth takes 29h 25m
There are no direct flights from St. Louis to Perth. Popular non-direct route for this connection is Lambert-St Louis Airport - Perth Airport.
There is 1 airport near Perth: Perth (PER)

  • How far is Lambert-St Louis to Perth by plane?

    There are 17533.8 km between Lambert-St Louis and Perth. In terms of flight time, this usually takes a little over 29h 25m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Perth Airport?

    Prices for flights from Lambert-St Louis Airport to Perth Airport refresh daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Perth Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Perth Airport.

  • What documentation or ID do you need to fly to Perth Airport?

    The travel and health documents required for your trip to Perth Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Perth Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Travelling to a place near Perth?

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

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Perth?

It is quick and easy to find St. Louis to Perth flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Perth that suits you.

Can I find flights from St. Louis to Perth with flexible booking policies on momondo?

All flight searches from St. Louis to Perth on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Perth?

momondo helps you find the best flight between St. Louis and Perth by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Perth right now. Can momondo alert me if prices change?

Price alerts on flights to Perth from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


An easier way to manage your Perth trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Sun 26/1
Sun 2/2
Email me momondo's favourite deals

Find better results for your trip to Australia