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Cheap flights from St. Louis (STL) to Perth (PER) from $1,722

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 10/4. 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
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
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 June 6, 2024.

Popular in

July

Cheapest in

February

Average price

$2,679

Round-trip from

$1,584
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 28% potential price drop
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Average for round-trip flights in June 2024
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From Lambert-St Louis to Perth
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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 3% on the overall cost on flights from St. Louis to Perth.

What is the cheapest month to fly from St. Louis to Perth?

February can be a great time to fly to Perth from St. Louis with a flight ticket averaging about $2,223. Cheapflights users have found deals in the month of February for as cheap as $1,589. The most expensive prices can be found in the month of July.

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

Unlike at noon, when flights are generally more expensive, you can save up to 32% on flights from St. Louis to Perth by exploring options for tickets in the morning.

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 3,050,429 searches. Data last updated June 6, 2024.
Fri 10/47:00 amSTL - PER
2 stops46h 35mQatar Airways
Fri 10/1110:45 pmPER - STL
2 stops38h 13mQatar Airways
Deal found 6/5$1,722
Fri 10/46:30 pmSTL - PER
2 stops26h 55mMultiple Airlines
Fri 10/115:45 amPER - STL
3 stops29h 39mMultiple Airlines
Deal found 6/5$2,298
Fri 10/44:05 pmSTL - PER
3 stops58h 55mMultiple Airlines
Fri 10/1110:55 pmPER - STL
3 stops53h 25mMultiple Airlines
Deal found 6/5$2,382
Fri 10/46:05 pmSTL - PER
2 stops29h 50mMultiple Airlines
Thu 10/101:10 amPER - STL
2 stops28h 58mMultiple Airlines
Deal found 6/5$2,736
Fri 10/46:05 pmSTL - PER
2 stops29h 50mUnited Airlines
Thu 10/101:10 amPER - STL
3 stops52h 12mUnited Airlines
Deal found 6/5$3,397

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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,722 - $3,397

Route

Depart

Return

Price

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/4

2 stops46h 35m

Perth

Fri 10/11

2 stops38h 13m

$1,722

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/4

2 stops26h 55m

Perth

Fri 10/11

3 stops29h 39m

$2,298

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/4

3 stops58h 55m

Perth

Fri 10/11

3 stops53h 25m

$2,382

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/4

2 stops29h 50m

Perth

Thu 10/10

2 stops28h 58m

$2,736

Lambert-St LouisPerth

STL - PER

STLPER

Lambert-St Louis

Fri 10/4

2 stops29h 50m

Perth

Thu 10/10

3 stops52h 12m

$3,397

Flights are sorted by cheapest first

Deals found on 6/5

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 June 2, 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.
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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 June 6, 2024.
Qatar Airways
7.7
Good
4,312 reviews

Entertainment

7.6

Boarding

7.8

Crew

8.1

Comfort

7.6

Overall

7.7

Food

7.5

Reviews

1 / 10

Service was slow in the flight from iad to doh. The entertainment was not working in the flight from doh to ccu

Qatar Airways
7.7
Good
4,312 reviews
Qatar Airways
7.7
Good
4,312 reviews

Entertainment

7.6

Boarding

7.8

Crew

8.1

Comfort

7.6

Overall

7.7

Food

7.5

Reviews

1 / 10

Service was slow in the flight from iad to doh. The entertainment was not working in the flight from doh to ccu

United Airlines
7.4
Good
10,696 reviews
Qatar Airways
7.7
Good
4,312 reviews

Entertainment

7.6

Boarding

7.8

Crew

8.1

Comfort

7.6

Overall

7.7

Food

7.5

Reviews

1 / 10

Service was slow in the flight from iad to doh. The entertainment was not working in the flight from doh to ccu

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 Qatar Airways for just $1,722, but on average you can expect to pay $2,507.

  • 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 $1,722. Another option worth looking into is United Airlines, starting at $3,397 round trip. Qatar Airways is 22% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 6/5.

  • 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 $1,584). Flying from St. Louis to Perth in July is currently the most expensive (average of $2,169). 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 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,931Average$2,215FlexibilityNo 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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