Cheap Flights from Perth (PER) to St Louis (STL)

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Compare Perth to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

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Flight deals from Perth to St Louis

Looking for a cheap last-minute deal or the best return flight from Perth to St Louis? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Perth to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Perth to St Louis flights are currently cheapest in May.

Perth to St Louis: Alternative routes

Compare routes from Perth to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Perth to St Louis: Flight information

The things to know before you go.
Cheapest flight found$2,294
Cheapest month to flyAugust

Finding cheap flights from Perth to St Louis: Frequently asked questions

The best price we found for a return flight from Perth to St Louis is $2,294. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Perth to St Louis. But we found flights with one or more stops from $2,294.
As of May 2025, there are no flights flying from Perth to St Louis.
The cheapest month to fly from Perth to St Louis is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Perth Airport to St Louis Airport on Tuesday, 12 August 2025.
No airlines currently offer direct flights between Perth Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air New Zealand offers the cheapest flight tickets to St Louis.

Flying from Perth Airport (PER) to Lambert-St. Louis International Airport (STL): what you need to know

  • St Louis's timezone is UTC-5, making St Louis 13 hours behind Perth.

  • Your PER to STL flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • You'll likely experience longer queues during popular months such as July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a good idea.

How to find the cheapest flights from Perth Airport (PER) to Lambert-St. Louis International Airport (STL)

  • The cheapest price we've found for a one-way Perth Airport to Lambert-St. Louis International Airport flight is $1,349. A return ticket right now is $2,294. Depending on the availability and when you book, these fares may change.

  • It's usually best to book as early as possible if you're looking for cheap tickets from PER to STL. That's because airlines adjust prices based on demand, which tends to rise closer to departure.

  • The 'Whole month' search function shows you the cheapest flights from Perth Airport to Lambert-St. Louis International Airport across each month. It's a great way to find a bargain if your travel plans are flexible.

  • Getting your hands on cheap flights from PER to STL is a cinch with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as fares go down.

  • Pick your ideal departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Perth Airport to Lambert-St. Louis International Airport.

Handy information about Perth Airport (PER)

  • Of the flights that depart from Perth Airport, 73.04% arrive as scheduled at their destination.

  • To get to Perth Airport from central Perth, it takes around 20 minutes by car. Of course, this depends on traffic. It's approximately 16 kilometres from the airport to the city centre.

  • The trip when using public transport typically takes 30 minutes.

  • Taking an early flight from Perth Airport to Lambert-St. Louis International Airport? Avoid rushing to the terminal (and get some extra shut-eye) by choosing one of these hotels close to PER:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • STL is located at 10701 Lambert International Blvd..

  • Lambert-St. Louis International Airport to central St Louis has a drive time of around 20 minutes. It's approximately 26 kilometres away.

  • If you're travelling on public transport, expect a journey of about 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • The quietest month for a flight from Perth Airport to Lambert-St. Louis International Airport is April, while July is the most popular. Choose the best time to go to St Louis based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book your flight from Perth Airport to Lambert-St. Louis International Airport for July if you'd like to visit St Louis during its warmest month. Expect temperatures of between 17ºC (63ºF) and 33ºC (91ºF).

  • January has average temperatures of between -8ºC (18ºF) and 7ºC (45ºF). Look for cheap tickets from PER to STL around that time if you want to travel in cooler conditions.

Explore more of United States

  • You've seen St Louis, now it's time to explore more of United States. Travel about 418 kilometres north-east to Chicago to tick off its popular sights. From Millennium Park to Art Institute of Chicago and LandShark Beer Garden at Navy Pier, you'll have a full itinerary ahead.

  • If you want to check out another corner of United States, head for Indianapolis, roughly 370 kilometres east of St Louis. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.