Route Price Intelligence
Cheap Flights From Seattle to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$240
Deals From
$209
Usually Costs
$209 – $269
Lowest We've Seen
$145
Based on 8,289 price pointshigh confidence
Monthly Price Guide
Jan
$331
Feb
$207
Mar
$209
Apr
$192
May
$226
Jun
$269
Jul
$279
Aug
$240
Sep
$215
Oct
$244
Nov
$253
Dec
$269
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 $192. The most expensive month tends to be January at around $331. For the best deals, consider flying in April, February, March.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14560 price checksWorst: $190