Route Price Intelligence
Cheap Flights From St. Louis to Portland
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$300
Deals From
$276
Usually Costs
$276 – $320
Lowest We've Seen
$160
Based on 8,351 price pointshigh confidence
Monthly Price Guide
Jan
$309
Feb
$322
Mar
$458
Apr
$253
May
$260
Jun
$306
Jul
$309
Aug
$296
Sep
$289
Oct
$309
Nov
$309
Dec
$359
Cheapest Average Expensive
Best Time to Fly from St. Louis to Portland
The cheapest time to fly from St. Louis to Portland is typically April, when fares average around $253. The most expensive month tends to be March at around $458. 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: $16085 price checksWorst: $221