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Cheap flights from St. Louis to Perth from $4,592

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Perth departing on 1/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 round-trip train or bus tickets from St. Louis to Perth.

All round-trip flight deals to Perth

The cheapest plane tickets to Perth found on KAYAK recently.
06:30 - 09:35STL-PER
37h 05m2 stops
00:15 - 23:03PER-STL
60h 48m2 stops
$4,592Cathay Pacific
Find Deal
Wed, 1 Jan - Tue, 7 Jan
17:29 - 10:10STL-PER
26h 41m2 stops
22:55 - 13:00PER-STL
28h 05m2 stops
$4,718
Find Deal
Wed, 1 Jan - Wed, 8 Jan
17:29 - 23:40STL-PER
40h 11m2 stops
22:40 - 13:00PER-STL
28h 20m3 stops
$4,936Qantas Airways
Find Deal
Wed, 1 Jan - Wed, 8 Jan
17:29 - 16:15STL-PER
32h 46m3 stops
13:20 - 13:00PER-STL
37h 40m3 stops
$5,553Qantas Airways
Find Deal
Wed, 1 Jan - Wed, 8 Jan
17:55 - 22:45STL-PER
38h 50m3 stops
00:15 - 16:20PER-STL
30h 05m2 stops
$12,164
Find Deal
Wed, 1 Jan - Tue, 7 Jan
08:00 - 09:35STL-PER
35h 35m3 stops
00:15 - 17:36PER-STL
31h 21m3 stops
$25,879
Find Deal
Wed, 1 Jan - Tue, 7 Jan
STL-PER
28175 kmmulti-stop
Multiple Airlines
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07:00 - 18:45STL-PER
45h 45m2 stops
22:45 - 23:59PER-STL
39h 14m2 stops
$3,112Qatar Airways
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Wed, 20 Nov - Fri, 22 Nov
06:15 - 11:20STL-PER
39h 05m2 stops
23:45 - 16:37PER-STL
54h 52m3 stops
$4,241United Airlines
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Wed, 20 Nov - Fri, 22 Nov
12:52 - 10:10STL-PER
31h 18m3 stops
22:40 - 12:59PER-STL
28h 19m3 stops
$5,677
Find Deal
Wed, 20 Nov - Fri, 22 Nov

Qantas Airways flights from St. Louis to Perth

Our best Qantas Airways deals on St. Louis to Perth flight tickets
Qantas Airways
1 Jan
STL17:29Lambert-St Louis
40h 11m
2 stops
PER23:40Perth
8 Jan
PER22:40Perth
28h 20m
3 stops
STL13:00Lambert-St Louis
Qantas Airways
1 Jan
STL17:29Lambert-St Louis
32h 46m
3 stops
PER16:15Perth
8 Jan
PER13:20Perth
37h 40m
3 stops
STL13:00Lambert-St Louis

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 month to fly from St. Louis to Perth?

February. The cheapest time of year to fly to Perth from St. Louis is February. The most expensive is January.

What is the cheapest day to depart St. Louis for Perth?

Monday. The cheapest day of the week is usually Monday. The most expensive is usually Monday.

When is the cheapest time to fly from St. Louis to Perth?

St. Louis to Perth flights are currently only available in the evening

What is the cheapest St. Louis to Perth flight route?

Lambert-St Louis - Perth. Fly from Lambert-St Louis to Perth for the best St. Louis - Perth flight prices

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

$4,592

Fastest flight time

26h 41m

Direct flights

None

Airports in Perth

1 airport
The best flight deal from St. Louis to Perth found on momondo in the last 72 hours is $4,592
The fastest flight from St. Louis to Perth takes 26h 41m
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 26h 41m.

  • 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.


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.


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