Route Price Intelligence
Cheap Flights From Portland to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$300
Deals From
$270
Usually Costs
$270 – $320
Lowest We've Seen
$160
Based on 8,071 price pointshigh confidence
Monthly Price Guide
Jan
$309
Feb
$309
Mar
$448
Apr
$250
May
$260
Jun
$308
Jul
$309
Aug
$300
Sep
$289
Oct
$309
Nov
$309
Dec
$348
Cheapest Average Expensive
Best Time to Fly from Portland to Saint Louis
The cheapest time to fly from Portland to Saint Louis is typically April, when fares average around $250. The most expensive month tends to be March at around $448. For the best deals, consider flying in April, May, September.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16087 price checksWorst: $286