Route Price Intelligence
Cheap Flights From St. Louis to Portland
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$249
Deals From
$239
Usually Costs
$239 – $279
Lowest We've Seen
$167
Based on 8,430 price pointshigh confidence
Monthly Price Guide
Jan
$403
Feb
$279
Mar
$273
Apr
$249
May
$245
Jun
$260
Jul
$282
Aug
$240
Sep
$239
Oct
$278
Nov
$249
Dec
$304
Cheapest Average Expensive
Best Time to Fly from St. Louis to Portland
The cheapest time to fly from St. Louis to Portland is typically September, when fares average around $239. The most expensive month tends to be January at around $403. For the best deals, consider flying in September, August, May.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16759 price checksWorst: $221