Route Price Intelligence
Cheap Flights From Seattle to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$250
Deals From
$249
Usually Costs
$249 – $286
Lowest We've Seen
$145
Based on 1,930 price pointshigh confidence
Monthly Price Guide
Jan
$283
Feb
$312
Mar
$367
Apr
$327
May
$249
Jun
$256
Jul
$256
Aug
$250
Sep
$249
Oct
$249
Nov
$249
Dec
$283
Cheapest Average Expensive
Best Time to Fly from Seattle to Saint Louis
The cheapest time to fly from Seattle to Saint Louis is typically October, when fares average around $249. The most expensive month tends to be March at around $367. For the best deals, consider flying in October, November, May.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16069 price checksWorst: $210