STL
Saint Louis
SEA
Seattle
Saint Louis → Seattle
Alaska Airlines · Round Trip · Nonstop
$606
per person · round trip
Sign up to book this deal
Create a free account to unlock booking links and save your favorite deals.
Flight Details
Cabin
Economy
Departs
Jun 13, 2026
Returns
Jun 13, 2026
Planning your trip to Seattle?
Complete your trip with these deals.