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Cheap flights from St. Louis (STL) to Perth (PER) from $1,440

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — PER
Apr 30 — May 71
From?
To?
Tue 4/30
Tue 5/7
1 adult, Economy
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Cheap flight deals from St. Louis to Perth

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Perth (PER). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 25, 2024.

Round-trip from

$1,583
From Lambert-St Louis to Perth
Search Deals

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

Leaving on a Monday 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 18% on the overall cost on flights from St. Louis to Perth.

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

Unlike at noon, when flights are generally more expensive, you can save up to 35% on flights from St. Louis to Perth by exploring options for tickets in the morning.

Cheap Air New Zealand flights from St. Louis to Perth

Explore cheap flight options specifically provided by Air New Zealand for the route between St. Louis and Perth. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Take a look at some of the lowest-priced Air New Zealand flights heading from St. Louis to Perth. Deals update often to give you more flight options matching your criteria
Tue 5/214:57 pmSTL - PER
2 stops34h 03mAir New Zealand
Tue 5/282:25 pmPER - STL
3 stops68h 50mAir New Zealand
Deal found 4/23$1,753
Sat 4/274:52 pmSTL - PER
3 stops40h 58mAir New Zealand
Sat 5/1111:55 pmPER - STL
3 stops35h 50mAir New Zealand
Deal found 4/23$2,807

Cheap Qatar Airways flights from St. Louis to Perth

Explore cheap flight options specifically provided by Qatar Airways for the route between St. Louis and Perth. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Some of the best deals we've found on Qatar Airways flights traveling from St. Louis to Perth. Ensure the flight price, dates, time, and airline match your criteria before you book.
Sat 4/272:35 pmSTL - PER
2 stops63h 00mQatar Airways
Sat 5/1110:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/23$1,440
Tue 5/217:00 amSTL - PER
2 stops46h 35mQatar Airways
Tue 5/2810:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/23$1,705
Thu 5/237:00 amSTL - PER
2 stops46h 35mQatar Airways
Thu 5/3010:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/24$1,861

Cheap St. Louis to Perth flights in April & May 2024

Find cheap flight options from St. Louis to Perth specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Prices were last updated on April 25, 2024.
These are some of the best deals we've found on flights to Perth in 2024 at this time. Check back soon for alternative fares.
Sat 4/272:35 pmSTL - PER
2 stops63h 00mQatar Airways
Sat 5/1110:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/23$1,440
Tue 5/217:00 amSTL - PER
2 stops46h 35mQatar Airways
Tue 5/2810:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/23$1,705
Tue 5/217:00 amSTL - PER
2 stops46h 35mQatar Airways
Tue 5/2810:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/22$1,706
Tue 5/214:57 pmSTL - PER
2 stops34h 03mAir New Zealand
Tue 5/282:25 pmPER - STL
3 stops68h 50mAir New Zealand
Deal found 4/23$1,753
Tue 5/214:57 pmSTL - PER
2 stops34h 03mAir New Zealand
Tue 5/284:25 pmPER - STL
3 stops66h 50mAir New Zealand
Deal found 4/22$1,754
Tue 5/219:50 amSTL - PER
3 stops40h 55mMultiple Airlines
Tue 5/283:30 pmPER - STL
3 stops41h 31mMultiple Airlines
Deal found 4/22$2,433
Tue 5/219:50 amSTL - PER
3 stops40h 55mMultiple Airlines
Tue 5/283:30 pmPER - STL
3 stops41h 31mMultiple Airlines
Deal found 4/23$2,458
Sat 4/275:06 pmSTL - PER
2 stops64h 29mMultiple Airlines
Fri 5/101:45 amPER - STL
2 stops34h 32mMultiple Airlines
Deal found 4/23$2,687
Sat 4/277:00 amSTL - PER
2 stops46h 35mMultiple Airlines
Sat 5/1111:55 pmPER - STL
3 stops33h 06mMultiple Airlines
Deal found 4/23$2,762

St. Louis to Perth 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Perth in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
These are some of the best deals we've found on flights to Perth in 2024 at this time. Check back soon for alternative fares.
Sat 4/272:35 pmSTL - PER
2 stops63h 00mQatar Airways
Sat 5/1110:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/23$1,440
Tue 5/217:00 amSTL - PER
2 stops46h 35mQatar Airways
Tue 5/2810:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/23$1,705
Tue 5/217:00 amSTL - PER
2 stops46h 35mQatar Airways
Tue 5/2810:45 pmPER - STL
2 stops38h 14mQatar Airways
Deal found 4/22$1,706
Tue 5/214:57 pmSTL - PER
2 stops34h 03mAir New Zealand
Tue 5/282:25 pmPER - STL
3 stops68h 50mAir New Zealand
Deal found 4/23$1,753
Tue 5/214:57 pmSTL - PER
2 stops34h 03mAir New Zealand
Tue 5/284:25 pmPER - STL
3 stops66h 50mAir New Zealand
Deal found 4/22$1,754
Wed 11/137:23 pmSTL - PER
2 stops37h 27mCathay Pacific
Sat 11/1612:10 amPER - STL
2 stops60h 50mCathay Pacific
Deal found 4/23$2,090
Wed 11/137:00 amSTL - PER
2 stops45h 45mQatar Airways
Sun 11/1710:45 pmPER - STL
2 stops37h 51mQatar Airways
Deal found 4/23$2,386
Wed 11/137:00 amSTL - PER
2 stops45h 45mQatar Airways
Sun 11/1710:45 pmPER - STL
2 stops37h 51mQatar Airways
Deal found 4/22$2,387
Tue 5/219:50 amSTL - PER
3 stops40h 55mMultiple Airlines
Tue 5/283:30 pmPER - STL
3 stops41h 31mMultiple Airlines
Deal found 4/22$2,433

Find flights from St. Louis to Perth within your budget

Customize your flight search to find flights from St. Louis to Perth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,440 - $2,807

Route

Depart

Return

Price

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 4/27

2 stops63h 00m

Perth

Sat 5/11

2 stops38h 14m

$1,440

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 5/21

2 stops46h 35m

Perth

Tue 5/28

2 stops38h 14m

$1,705

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 5/21

2 stops34h 03m

Perth

Tue 5/28

3 stops68h 50m

$1,753

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 5/23

2 stops46h 35m

Perth

Thu 5/30

2 stops38h 14m

$1,861

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 5/23

3 stops40h 05m

Perth

Thu 5/30

3 stops33h 06m

$2,067

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Tue 5/21

3 stops40h 55m

Perth

Tue 5/28

3 stops41h 31m

$2,458

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Thu 5/23

2 stops30h 38m

Perth

Thu 5/30

3 stops32h 47m

$2,499

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 4/27

2 stops64h 29m

Perth

Fri 5/10

2 stops34h 32m

$2,687

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 4/27

3 stops40h 58m

Perth

Sat 5/11

3 stops35h 50m

$2,807

Flights are sorted by cheapest first

Deals found on 4/23

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Perth. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Perth flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Perth by month

Plan your trip from St. Louis to Perth by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Perth is currently $0 while a round-trip flight costs $2,142. Price data was last updated on April 21, 2024.

Currently, March is the cheapest month in which you can book a flight from St. Louis to Perth (average of $1,583). Flying from St. Louis to Perth in July is currently the most expensive (average of $2,134). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$1,785

February

$1,744

March

$1,583

April

$1,681

May

$1,716

June

$1,920

July

$2,134

August

$1,803

September

$1,789

October

$1,799

November

$1,680

December

$1,910

Temperature and rainfall in Perth by month

Plan your trip to Perth by taking into account the average temperature and rainfall totals by month.

PER

Temperature

53.6 - 75.2 °F

Reviews of airlines servicing Perth

Get insights into the airlines that provide service to Perth. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Perth. Reviews last updated April 25, 2024.
Get a feel of what it's like to fly with Air New Zealand, Qatar Airways and United Airlines from St. Louis to Perth by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.3
Very good
655 reviews
Check prices

Entertainment

7.9

Overall

8.3

Food

7.6

Crew

8.8

Boarding

8.4

Comfort

8.1

Reviews

1 / 10

Everything went rather smoothly, I have no complaints or negative comments. Thanks for getting me where I needed to be.

Air New Zealand
8.3
Very good
655 reviews
Air New Zealand
8.3
Very good
655 reviews
Check prices

Entertainment

7.9

Overall

8.3

Food

7.6

Crew

8.8

Boarding

8.4

Comfort

8.1

Reviews

1 / 10

Everything went rather smoothly, I have no complaints or negative comments. Thanks for getting me where I needed to be.

Qatar Airways
7.7
Good
4,480 reviews
Air New Zealand
8.3
Very good
655 reviews
Check prices

Entertainment

7.9

Overall

8.3

Food

7.6

Crew

8.8

Boarding

8.4

Comfort

8.1

Reviews

1 / 10

Everything went rather smoothly, I have no complaints or negative comments. Thanks for getting me where I needed to be.

United Airlines
7.4
Good
11,255 reviews
Air New Zealand
8.3
Very good
655 reviews
Check prices

Entertainment

7.9

Overall

8.3

Food

7.6

Crew

8.8

Boarding

8.4

Comfort

8.1

Reviews

1 / 10

Everything went rather smoothly, I have no complaints or negative comments. Thanks for getting me where I needed to be.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Perth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Perth for under $1,500 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Perth for under $1,500. The cheapest flight booked recently is on Qatar Airways for just $1,440, but on average you can expect to pay $3,726.

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

    Flying on Qatar Airways is currently your cheapest option to Perth, with prices starting at $1,440. Additional round-trip tickets that might be worth considering are offered by Air New Zealand and United Airlines, with the lowest prices starting at $1,753 and $7,212, respectively.

  • What does STL to PER mean?

    Great question - STL to PER just means Lambert-St Louis Airport to Perth Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from St. Louis to Perth that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Perth flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Perth with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Perth flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Perth that include hotel bookings?

    Yes. In addition to deals on St. Louis to Perth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Perth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Perth.

  • Can I find deals for business class flights from St. Louis to Perth?

    Yes. Cheapflights offers flight deals from St. Louis to Perth by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Perth that allow pets onboard?

    Many airlines flying from St. Louis to Perth offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Perth?

    Yes, you can often find last-minute deals on St. Louis to Perth flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Perth flight deals updated?

    The St. Louis to Perth flight deals you see on this page were last updated on 4/23.

See more FAQs

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Alternative routes for St. Louis to Perth
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Perth flights

Top airline flying from St. Louis to Perth

Discover the top airline that operate flights from St. Louis to Perth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,959Average$2,224FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
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Search flights from St. Louis to Perth by cabin class

Find flights from St. Louis to Perth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Perth?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Perth from St. Louis today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Perth?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Perth.

Can Cheapflights find flights from St. Louis to Perth with no change fees?

Need flexible booking options for your flight to Perth from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to Perth become cheaper?

Of course! You can now track prices for flights from St. Louis to Perth and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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