Leaving on a Thursday 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 5% on the overall cost on flights from St Louis to Perth.
June is one of the best times of the year to fly to Perth from St Louis. Prices for June average $1262 per person but you can even find prices for as low as $867. The most expensive prices can be found in the month of September. Opting for a June flight can save you 35% on your journey compared to booking in June
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St Louis to Perth as you normally would.