Seattle / Tacoma (SEA) to St. Louis (STL) flight deal in economy from $177
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
STLLambert-Saint Louis International Airport
St. Louis, United States
$370 USD
-52%$177 USD
Verified about 8 hours agoJuly 2026
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Limited Availability
14% of dates checked are available within 10% of the lowest price
Sunday, July 5th, 2026
0 round-trip options
No flight details available for this date.