Route Price Intelligence
Cheap Flights From Seattle to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$255
Deals From
$249
Usually Costs
$249 – $294
Lowest We've Seen
$145
Based on 8,363 price pointshigh confidence
Monthly Price Guide
Jan
$249
Feb
$310
Mar
$403
Apr
$251
May
$249
Jun
$270
Jul
$270
Aug
$250
Sep
$249
Oct
$249
Nov
$250
Dec
$298
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 $403. For the best deals, consider flying in October, January, May.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $16090 price checksWorst: $210