Route Price Intelligence
Cheap Flights From Portland to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$319
Great Deal
Under $285
Typical Range
$285 – $319
Lowest We've Seen
$160
Based on 266 price pointshigh confidence
Monthly Price Guide
Jan
$319
Feb
$319
Mar
$347
Apr
$319
May
—
Jun
—
Jul
$352
Aug
$275
Sep
$275
Oct
$259
Nov
$318
Dec
$349
Cheapest Average Expensive
Best Time to Fly from Portland to Saint Louis
The cheapest time to fly from Portland to Saint Louis is typically October, when fares average around $259. The most expensive month tends to be July at around $352. For the best deals, consider flying in October, August, September.
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: September21,091 fares analyzedTypical low: $260