Route Price Intelligence
Cheap Flights From Portland to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$309
Deals From
$280
Usually Costs
$280 – $323
Lowest We've Seen
$160
Based on 262 price pointshigh confidence
Monthly Price Guide
Jan
$318
Feb
—
Mar
—
Apr
$385
May
$270
Jun
$290
Jul
$299
Aug
$270
Sep
$286
Oct
$309
Nov
$316
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 May, when fares average around $270. The most expensive month tends to be April at around $385. For the best deals, consider flying in May, August, September.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16070 price checksWorst: $286