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Cheap flights from St. Louis to Perth from $2,004

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Perth

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:29 - 06:55STL  Lambert-St Louis-PER Perth
47h 26m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
08:30 - 18:17PER  Perth-STL Lambert-St Louis
47h 47m2 stops Hong Kong Intl Chicago O'Hare Intl
$2,025Multiple Airlines
Sun, 1 Nov - Mon, 16 Nov
Multiple Airlines Logo
11:01 - 06:50STL  Lambert-St Louis-PER Perth
30h 49m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
00:10 - 23:59PER  Perth-STL Lambert-St Louis
36h 49m2 stops Hong Kong Intl Seattle/Tacoma Intl
$2,053Multiple Airlines
Mon, 28 Sep - Fri, 2 Oct
Multiple Airlines Logo
05:00 - 06:50STL  Lambert-St Louis-PER Perth
36h 50m2 stops Chicago O'Hare Intl Hong Kong Intl
Multiple Airlines Logo
00:10 - 18:38PER  Perth-STL Lambert-St Louis
31h 28m2 stops Hong Kong Intl Seattle/Tacoma Intl
$2,088Multiple Airlines
Thu, 24 Sep - Wed, 30 Sep
Multiple Airlines Logo
16:05 - 20:30STL  Lambert-St Louis-PER Perth
62h 25m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
15:15 - 15:26PER  Perth-STL Lambert-St Louis
62h 11m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$2,225Multiple Airlines
Sun, 1 Nov - Mon, 16 Nov
Multiple Airlines Logo
06:29 - 06:50STL  Lambert-St Louis-PER Perth
35h 21m2 stops Seattle/Tacoma Intl Hong Kong Intl
Multiple Airlines Logo
00:10 - 23:59PER  Perth-STL Lambert-St Louis
36h 49m3 stops Hong Kong Intl Vancouver Intl Seattle/Tacoma Intl
$2,354Multiple Airlines
Mon, 28 Sep - Fri, 2 Oct
United Airlines Logo
19:05 - 14:45STL  Lambert-St Louis-PER Perth
29h 40m2 stops San Francisco Melbourne
United Airlines Logo
22:55 - 18:05PER  Perth-STL Lambert-St Louis
33h 10m3 stops Sydney Kingsford Smith Los Angeles Los Angeles San Francisco
$2,417United Airlines
Sun, 1 Nov - Mon, 16 Nov
United Airlines Logo
19:05 - 14:45STL  Lambert-St Louis-PER Perth
29h 40m2 stops San Francisco Melbourne
United Airlines Logo
22:55 - 18:05PER  Perth-STL Lambert-St Louis
33h 10m3 stops Sydney Kingsford Smith Los Angeles Los Angeles San Francisco
$2,419United Airlines
Sun, 1 Nov - Mon, 16 Nov
Multiple Airlines Logo
18:08 - 22:40STL  Lambert-St Louis-PER Perth
39h 32m3 stops Portland Vancouver Intl Hong Kong Intl
Multiple Airlines Logo
00:10 - 18:38PER  Perth-STL Lambert-St Louis
31h 28m2 stops Hong Kong Intl Seattle/Tacoma Intl
$2,687Multiple Airlines
Thu, 24 Sep - Wed, 30 Sep
Qatar Airways Logo
11:35 - 18:45STL  Lambert-St Louis-PER Perth
41h 10m2 stops Chicago O'Hare Intl Doha Hamad Intl
Qatar Airways Logo
22:45 - 22:24PER  Perth-STL Lambert-St Louis
37h 39m2 stops Doha Hamad Intl Chicago O'Hare Intl
$2,706Qatar Airways
Mon, 9 Nov - Fri, 13 Nov
Air Canada Logo
16:05 - 20:20STL  Lambert-St Louis-PER Perth
62h 15m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
22:55 - 15:26PER  Perth-STL Lambert-St Louis
54h 31m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$2,812Air Canada
Mon, 9 Nov - Fri, 13 Nov

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United Airlines flights from St. Louis to Perth

Our best United Airlines deals on St. Louis to Perth flight tickets
United Airlines
1 Nov
STL19:05Lambert-St Louis
29h 40m
2 stops
PER14:45Perth
16 Nov
PER22:55Perth
33h 10m
3 stops
STL18:05Lambert-St Louis
$2,417
United Airlines
1 Nov
STL19:05Lambert-St Louis
29h 40m
2 stops
PER14:45Perth
16 Nov
PER22:55Perth
33h 10m
3 stops
STL18:05Lambert-St Louis
$2,419
United Airlines
15 Oct
STL07:08Lambert-St Louis
42h 37m
2 stops
PER14:45Perth
22 Oct
PER23:45Perth
31h 58m
2 stops
STL18:43Lambert-St Louis
$2,829

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Perth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Sun 1/11

17:29-06:55

2 stops47h 26m

Perth

Mon 16/11

08:30-18:17

2 stops47h 47m

$2,025

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Mon 28/9

11:01-06:50

2 stops30h 49m

Perth

Fri 2/10

00:10-23:59

2 stops36h 49m

$2,053

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Thu 24/9

05:00-06:50

2 stops36h 50m

Perth

Wed 30/9

00:10-18:38

2 stops31h 28m

$2,088

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Sun 1/11

16:05-20:30

3 stops62h 25m

Perth

Mon 16/11

15:15-15:26

3 stops62h 11m

$2,225

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Mon 28/9

06:29-06:50

2 stops35h 21m

Perth

Fri 2/10

00:10-23:59

3 stops36h 49m

$2,354
Fastest return journey

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Sun 1/11

19:05-14:45

2 stops29h 40m

Perth

Mon 16/11

22:55-18:05

3 stops33h 10m

$2,417

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Sun 1/11

19:05-14:45

2 stops29h 40m

Perth

Mon 16/11

22:55-18:05

3 stops33h 10m

$2,419

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Thu 24/9

18:08-22:40

3 stops39h 32m

Perth

Wed 30/9

00:10-18:38

2 stops31h 28m

$2,687

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Mon 9/11

11:35-18:45

2 stops41h 10m

Perth

Fri 13/11

22:45-22:24

2 stops37h 39m

$2,706

St. LouisPerth

STL Lambert-St Louis - PER Perth

STLPER

Lambert-St Louis

Mon 9/11

16:05-20:20

3 stops62h 15m

Perth

Fri 13/11

22:55-15:26

3 stops54h 31m

$2,812

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

$2,025

Fastest flight time

30h 49m

Direct flights

None
The best flight deal from St. Louis to Perth found on momondo in the last 72 hours is $2,025
The fastest flight from St. Louis to Perth takes 30h 49m
There are no direct flights from St. Louis to Perth. There are no popular flight routes from St. Louis to Perth.
Search flight deals

Frequently asked questions about flying from St. Louis to Perth

  • 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 30h 49m.

  • 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.

Frequently asked questions about flying from St. Louis to Perth

  • How do I get Price Alerts for flights from St. Louis to Perth?

    Search flight deals from St. Louis to Perth. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from St. Louis to Perth with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Travelling to a place near Perth?

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

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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