Seattle / Tacoma (SEA) to St. Louis (STL) flight deal in economy from $94
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
STLLambert-Saint Louis International Airport
St. Louis, United States
$186 USD
-49%$94 USD
Verified about 3 hours agoAugust 2026
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Fair Availability
22% of dates checked are available within 10% of the lowest price
Wednesday, August 19th, 2026
Outbound Flights
8h 24m·1 stop
$94 USD
SEAAug 19 23:59
→MSPAug 20 05:17
DL 953Airbus A321neo
3h 33m layover
MSPAug 20 08:50
→STLAug 20 10:23
DL 3188Airbus A220-100 Passenger
9h 25m·2 stops
$99 USD
SEAAug 19 06:25
→LASAug 19 08:55
WN 409Boeing 737MAX 8 Passenger
1h layover
LASAug 19 09:55
→MCIAug 19 14:45
WN 2200Boeing 737MAX 8 Passenger
2h layover
MCIAug 19 16:45
→STLAug 19 17:50
WN 2538Boeing 737-700 (Scimitar Winglets) Pax
8h 55m·1 stop
$109 USDSEAAug 19 11:40
→PHXAug 19 14:50
WN 269Boeing 737MAX 8 Passenger
2h 50m layover
PHXAug 19 17:40
→STLAug 19 22:35
WN 1574Boeing 737
6h 55m·1 stop
$109 USDSEAAug 19 23:00
→BNAAug 20 05:25
WN 2614Boeing 737MAX 8 Passenger
1h 20m layover
BNAAug 20 06:45
→STLAug 20 07:55
WN 855Boeing 737
8h 5m·1 stop
$149 USDSEAAug 19 12:40
→LASAug 19 15:25
WN 4509Boeing 737-700 (Scimitar Winglets) Pax
2h 10m layover
LASAug 19 17:35
→STLAug 19 22:45
WN 1559Boeing 737MAX 8 Passenger
6h 40m·1 stop
$164 USDSEAAug 19 06:25
→LASAug 19 08:55
WN 409Boeing 737MAX 8 Passenger
55m layover
LASAug 19 09:50
→STLAug 19 15:05
WN 2317Boeing 737MAX 8 Passenger
6h 50m·1 stop
$164 USDSEAAug 19 13:45
→PHXAug 19 16:55
WN 1394Boeing 737MAX 8 Passenger
45m layover
PHXAug 19 17:40
→STLAug 19 22:35
WN 1574Boeing 737
5h 35m·1 stop
$174 USDSEAAug 19 11:10
→DENAug 19 14:50
WN 4507Boeing 737
50m layover
DENAug 19 15:40
→STLAug 19 18:45
WN 241Boeing 737
5h 53m·1 stop
$340 USDSEAAug 19 05:45
→SLCAug 19 08:46
DL 1128Airbus A321neo
59m layover
SLCAug 19 09:45
→STLAug 19 13:38
DL 2455Airbus A220-100 Passenger