St. Louis (STL) to Seattle / Tacoma (SEA) flight deal in economy from $84
STLLambert-Saint Louis International Airport
St. Louis, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$186 USD
-55%$84 USD
Verified about 3 hours agoSeptember 2026
Mon
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Extremely Rare Availability
2% of dates checked are available within 10% of the lowest price
Monday, September 28th, 2026
Outbound Flights
4h 20m·Nonstop
$84 USD
STLSep 28 08:25
→SEASep 28 10:45
WN 2190Boeing 737
6h 50m·1 stop
$94 USDSTLSep 28 18:05
→DENSep 28 19:20
WN 2704Boeing 737MAX 8 Passenger
1h 35m layover
DENSep 28 20:55
→SEASep 28 22:55
WN 3415Boeing 737-700 (Scimitar Winglets) Pax
7h 4m·1 stop
$94 USD
STLSep 28 18:55
→SLCSep 28 21:10
DL 1492Airbus A220-100 Passenger
1h 30m layover
SLCSep 28 22:40
→SEASep 28 23:59
DL 2998Boeing 737
10h 15m·1 stop
$94 USDSTLSep 28 13:55
→DTWSep 28 16:28
DL 1371Boeing 717
3h 46m layover
DTWSep 28 20:14
→SEASep 28 22:10
DL 565Airbus A321neo
8h 8m·1 stop
$94 USDSTLSep 28 17:47
→MSPSep 28 19:29
DL 1224Airbus A220-100 Passenger
2h 30m layover
MSPSep 28 21:59
→SEASep 28 23:55
DL 505Airbus A321
7h 40m·1 stop
$94 USDSTLSep 28 18:15
→MDWSep 28 19:20
WN 3001Boeing 737-700 (Scimitar Winglets) Pax
2h layover
MDWSep 28 21:20
→SEASep 28 23:55
WN 2827Boeing 737MAX 8 Passenger
7h 55m·1 stop
$94 USDSTLSep 28 18:25
→LASSep 28 19:55
WN 3847Boeing 737-700 (Scimitar Winglets) Pax
1h 45m layover
LASSep 28 21:40
→SEASep 29 00:20
WN 3604Boeing 737MAX 8 Passenger
8h 25m·2 stops
$99 USDSTLSep 28 14:20
→MCISep 28 15:25
WN 2530Boeing 737-700 (Scimitar Winglets) Pax
1h 30m layover
MCISep 28 16:55
→DENSep 28 17:45
WN 2501Boeing 737
1h 5m layover
DENSep 28 18:50
→SEASep 28 20:45
WN 555Boeing 737
6h 11m·1 stop
$170 USDSTLSep 28 14:25
→SLCSep 28 16:38
DL 2455Airbus A220-100 Passenger
42m layover
SLCSep 28 17:20
→SEASep 28 18:36
DL 871Boeing 737