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 are refreshed on a daily basis.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to Perth Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Perth Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$1,446 Cheap Flights from St. Louis to Perth (STL-PER) in 2025

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Find the cheapest flights from St. Louis to Perth (STL-PER)

Round-trip

One-way

Cheap round-trip flights

8:40 am - 10:50 pmSTL-PER

48h 10m2 stops

12:15 am - 10:58 pmPER-STL

36h 43m2 stops

$1,448Cathay Pacific

Find Deal

Thu, Nov 13 - Sun, Nov 16

7:23 am - 10:40 pmSTL-PER

50h 17m2 stops

9:15 am - 11:05 pmPER-STL

50h 50m2 stops

$1,654Cathay Pacific

Find Deal

Fri, Oct 3 - Fri, Oct 10

3:59 pm - 2:25 pmSTL-PER

33h 26m2 stops

10:55 pm - 7:38 pmPER-STL

33h 43m3 stops

$1,711

Find Deal

Fri, Oct 3 - Fri, Oct 10

9:35 am - 6:40 pmSTL-PER

44h 05m2 stops

10:45 pm - 8:26 pmPER-STL

34h 41m2 stops

$1,851Qatar Airways

Find Deal

Mon, Oct 6 - Mon, Oct 20

6:39 am - 5:05 pmSTL-PER

45h 26m2 stops

10:55 pm - 10:27 pmPER-STL

36h 32m2 stops

$1,889Qantas Airways

Find Deal

Mon, Oct 6 - Mon, Oct 20

6:00 am - 7:45 amSTL-PER

36h 45m2 stops

12:10 am - 11:54 pmPER-STL

36h 44m2 stops

$1,933Cathay Pacific

Find Deal

Mon, Oct 6 - Sun, Oct 19

6:39 am - 12:35 pmSTL-PER

40h 56m2 stops

10:55 pm - 4:23 pmPER-STL

54h 28m3 stops

$2,062Qantas Airways

Find Deal

Mon, Oct 6 - Mon, Oct 20

9:15 am - 8:30 pmSTL-PER

46h 15m3 stops

10:55 pm - 7:38 pmPER-STL

33h 43m3 stops

$2,225Air Canada

Find Deal

Mon, Oct 6 - Mon, Oct 20

9:15 am - 8:30 pmSTL-PER

46h 15m3 stops

10:55 pm - 3:18 pmPER-STL

53h 23m3 stops

$2,226Air Canada

Find Deal

Mon, Oct 6 - Mon, Oct 20

5:02 pm - 12:35 pmSTL-PER

30h 33m2 stops

10:55 pm - 4:08 pmPER-STL

30h 13m3 stops

$2,428

Find Deal

Mon, Oct 6 - Mon, Oct 20

Air Canada flights from St. Louis to Perth

Our best Air Canada deals on St. Louis to Perth flight tickets

Air Canada

Oct 6

STL9:15 amLambert-St Louis

46h 15m

3 stops

PER8:30 pmPerth

Oct 20

PER10:55 pmPerth

33h 43m

3 stops

STL7:38 pmLambert-St Louis

$2,225

Find similar

Air Canada

Oct 6

STL9:15 amLambert-St Louis

46h 15m

3 stops

PER8:30 pmPerth

Oct 20

PER10:55 pmPerth

53h 23m

3 stops

STL3:18 pmLambert-St Louis

$2,226

Find similar

Air Canada

Nov 13

STL4:05 pmLambert-St Louis

56h 25m

3 stops

PER2:30 pmPerth

Nov 17

PER10:55 pmPerth

54h 34m

3 stops

STL3:29 pmLambert-St Louis

$2,364

Find similar

Qantas Airways flights from St. Louis to Perth

Our best Qantas Airways deals on St. Louis to Perth flight tickets

Qantas Airways

Oct 6

STL6:39 amLambert-St Louis

45h 26m

2 stops

PER5:05 pmPerth

Oct 20

PER10:55 pmPerth

36h 32m

2 stops

STL10:27 pmLambert-St Louis

$1,889

Find similar

Qantas Airways

Oct 6

STL6:39 amLambert-St Louis

40h 56m

2 stops

PER12:35 pmPerth

Oct 20

PER10:55 pmPerth

54h 28m

3 stops

STL4:23 pmLambert-St Louis

$2,062

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 11/13

8:40 am-10:50 pm

2 stops48h 10m

Perth

Sun 11/16

12:15 am-10:58 pm

2 stops36h 43m

$1,448

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/3

7:23 am-10:40 pm

2 stops50h 17m

Perth

Fri 10/10

9:15 am-11:05 pm

2 stops50h 50m

$1,654

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/3

3:59 pm-2:25 pm

2 stops33h 26m

Perth

Fri 10/10

10:55 pm-7:38 pm

3 stops33h 43m

$1,711

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 10/6

9:35 am-6:40 pm

2 stops44h 05m

Perth

Mon 10/20

10:45 pm-8:26 pm

2 stops34h 41m

$1,851

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 10/6

6:39 am-5:05 pm

2 stops45h 26m

Perth

Mon 10/20

10:55 pm-10:27 pm

2 stops36h 32m

$1,889

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 10/6

6:00 am-7:45 am

2 stops36h 45m

Perth

Sun 10/19

12:10 am-11:54 pm

2 stops36h 44m

$1,933

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 10/6

6:39 am-12:35 pm

2 stops40h 56m

Perth

Mon 10/20

10:55 pm-4:23 pm

3 stops54h 28m

$2,062

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 10/6

9:15 am-8:30 pm

3 stops46h 15m

Perth

Mon 10/20

10:55 pm-7:38 pm

3 stops33h 43m

$2,225

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 10/6

9:15 am-8:30 pm

3 stops46h 15m

Perth

Mon 10/20

10:55 pm-3:18 pm

3 stops53h 23m

$2,226

St. LouisPerth

STL - PER

STLPER

Lambert-St Louis

Mon 10/6

5:02 pm-12:35 pm

2 stops30h 33m

Perth

Mon 10/20

10:55 pm-4:08 pm

3 stops30h 13m

$2,428

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 on your flight to Perth is on a Thursday when prices can be found for as low as $1,649. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Perth is Wednesday, with ticket prices averaging around $1,955.

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

At noon is the cheapest time of day to fly from St. Louis to Perth when you can find flight prices for as low as $1,804. Flying to Perth at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $3,392. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 round-trip 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

Direct flights	None

There are no direct flights from St. Louis to Perth. There are no popular flight routes from St. Louis to Perth.

Search flight deals

How far is Lambert-St Louis to Perth by plane?
Lambert-St Louis and Perth are 10895.1 mi apart from one another. By plane, this route typically takes 30h 33m.
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 are refreshed on a daily basis.
How old do you have to be to fly from Lambert-St Louis Airport to Perth Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to Perth Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Perth Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Scarborough

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Waikiki

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Perth from St. Louis.

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

Yes. momondo enables you to select and highlight flights to Perth from St. Louis with this policy.

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

Once you have performed a search for St. Louis to Perth flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of St. Louis to Perth flights. All you need is a valid email address and we will do the rest; it is that quick and easy.