Seattle to St Louis
SEASTL
Fly from Seattle to St Louis starting at USD 169 with AA.
Best fare available on Jun 24, 2026.
Limited seats. Better plans. Book before it's gone.
Seattle to St Louis cheapest flights this week
24 Jun
AA
11:43SEA
19:37STL
1 Stop$169VIEW DEAL
25 Jun
F9
19:41SEA
17:23STL
1 Stop$216VIEW DEAL
Seattle to St Louis monthly flight fare trend
May
No flights
Jun
from USD 169
Jul
No flights
Aug
No flights
Sep
No flights
Oct
No flights
Airport Details
Origin
Seattle
Seattle–Tacoma International Airport (SEA)
Seattle, SEA
Zone
Los Angeles
Elev
433 ft
Destination
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
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