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$1,762+ Cheap flights from St. Louis (STL) to Perth (PER)

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PER
Jul 30 — Aug 61
From?
To?
Tue 7/30
Tue 8/6
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 July 25, 2024.

Round-trip from

$1,762
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 Tuesday 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 30% on the overall cost on flights from St. Louis to Perth.

What is the cheapest time of day to fly from STL to PER?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 20% on flights from St. Louis to Perth by exploring options for tickets in the morning.

Cheap St. Louis to Perth flights in July & August 2024

Find cheap flight options from St. Louis to Perth specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
This deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/106:16 amSTL - PER
3 stops43h 24mUnited Airlines
Wed 8/1411:45 pmPER - STL
3 stops53h 43mUnited Airlines
Deal found 7/25$1,762
This Qantas Airways deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/107:00 amSTL - PER
2 stops50h 50mQantas Airways
Wed 8/146:30 amPER - STL
2 stops29h 12mQantas Airways
Deal found 7/25$2,154

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 2,752,877 searches. Data last updated July 25, 2024.
This deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/106:16 amSTL - PER
3 stops43h 24mUnited Airlines
Wed 8/1411:45 pmPER - STL
3 stops53h 43mUnited Airlines
Deal found 7/25$1,762
This Qantas Airways deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/107:00 amSTL - PER
2 stops50h 50mQantas Airways
Wed 8/146:30 amPER - STL
2 stops29h 12mQantas Airways
Deal found 7/25$2,154

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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,762 - $2,154

Route

Depart

Return

Price

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 8/10

3 stops43h 24m

Perth

Wed 8/14

3 stops53h 43m

$1,762

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Sat 8/10

2 stops50h 50m

Perth

Wed 8/14

2 stops29h 12m

$2,154

Flights are sorted by cheapest first

Deals found on 7/25

What is the cheapest day 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 July 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 Saturday mornings when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from St. Louis to Perth

Have a flexible travel schedule? Discover the best time to fly to Perth from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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

If weather is an important factor for your trip to Perth, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 53.6 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 July 25, 2024.
Qantas Airways
7.6
Good
902 reviews

Food

7.0

Boarding

7.7

Comfort

7.4

Entertainment

7.3

Crew

8.3

Overall

7.6

Reviews

1 / 10

Great enthusiasm from the cabin staff. Obviously, enjoying their job and being pro-active with the children on the flight (who loved the Qantas staff)

Qantas Airways
7.6
Good
902 reviews
Qantas Airways
7.6
Good
902 reviews

Food

7.0

Boarding

7.7

Comfort

7.4

Entertainment

7.3

Crew

8.3

Overall

7.6

Reviews

1 / 10

Great enthusiasm from the cabin staff. Obviously, enjoying their job and being pro-active with the children on the flight (who loved the Qantas staff)

United Airlines
7.4
Good
10,000 reviews
Qantas Airways
7.6
Good
902 reviews

Food

7.0

Boarding

7.7

Comfort

7.4

Entertainment

7.3

Crew

8.3

Overall

7.6

Reviews

1 / 10

Great enthusiasm from the cabin staff. Obviously, enjoying their job and being pro-active with the children on the flight (who loved the Qantas staff)

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 $1,800 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Perth for under $1,800. The cheapest flight booked recently is on United Airlines for just $1,762, but on average you can expect to pay $1,958.

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

    Flying on United Airlines is currently your cheapest option to Perth, with prices starting at $1,762. Another option worth looking into is Qantas Airways, starting at $2,154 round trip.

  • 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 7/25.

  • What are the most popular airlines that fly from St. Louis to Perth?

    The most popular airlines flying from St. Louis to Perth are Qantas Airways, Qatar Airways and United Airlines. Something to consider prior to booking your flight.

  • What is the cheapest month to book a flight from St. Louis to Perth?

    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 December is currently the most expensive (average of $1,928). 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.

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 3 airlines flying from St. Louis to Perth

Discover the top 3 airlines 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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,579Average$1,715FlexibilityNo cancel feeOn-time68%
United AirlinesCheapest$1,928Average$1,936FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$1,945Average$2,220FlexibilityNo cancel feeOn-time74%
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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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