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 8,356 price pointshigh confidence
Monthly Price Guide
Jan
$249
Feb
$338
Mar
$395
Apr
$241
May
$246
Jun
$275
Jul
$271
Aug
$250
Sep
$249
Oct
$249
Nov
$264
Dec
$292
Cheapest Average Expensive
Best Time to Fly from Seattle to Saint Louis
The cheapest time to fly from Seattle to Saint Louis is typically April, when fares average around $241. The most expensive month tends to be March at around $395. For the best deals, consider flying in April, May, October.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14587 price checksWorst: $210