Route Price Intelligence
Cheap Flights From St. Louis to Perth
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$1,871
Great Deal
Under $1,828
Typical Range
$1,828 – $2,147
Lowest We've Seen
$1,394
Based on 270 price pointshigh confidence
Monthly Price Guide
Jan
$1,828
Feb
$1,649
Mar
$1,871
Apr
$1,792
May
$1,789
Jun
$1,854
Jul
$2,224
Aug
$1,836
Sep
$1,793
Oct
$1,910
Nov
$1,762
Dec
$2,339
Cheapest Average Expensive
Best Time to Fly from St. Louis to Perth
The cheapest time to fly from St. Louis to Perth is typically February, when fares average around $1,649. The most expensive month tends to be December at around $2,339. For the best deals, consider flying in February, November, May.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: November3,777 fares analyzedTypical low: $1,963
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