Best Flights starting from $528
from$528economy
Seattle (SEA)
Thu, May 14
Roundtrip
St Louis (STL)
Mon, May 25
from$572economy
Seattle (SEA)
Tue, May 12
Roundtrip
St Louis (STL)
Sat, May 23
from$572economy
Seattle (SEA)
Wed, May 13
Roundtrip
St Louis (STL)
Sun, May 24
from$727economy
Seattle (SEA)
Mon, May 11
Roundtrip
St Louis (STL)
Fri, May 22
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Other Destinations
Seattle (SEA) to Los Angeles (LAX) in May from $28
From $28
Seattle (SEA) to Denver (DEN) in May from $33
From $33
Seattle (SEA) to San Francisco (SFO) in May from $49
From $49
Seattle (SEA) to Phoenix (PHX) in May from $69
From $69
Seattle (SEA) to Pittsburgh (PIT) in May from $82
From $82
Seattle (SEA) to Detroit (DTW) in May from $86
From $86
Flights from Other Cities
Charlotte (CLT) to St Louis (STL) in May from $70
From $70
San Antonio (SAT) to St Louis (STL) in May from $76
From $76
Fort Lauderdale (Any) to St Louis (STL) in May from $80
From $80
Fort Lauderdale (FLL) to St Louis (STL) in May from $86
From $86
Hartford (BDL) to St Louis (STL) in May from $90
From $90
Denver (Any) to St Louis (STL) in May from $90
From $90