Apparatus

Try JFK, AAL1290, BAW, or N225AN.

route Route

SEA → STL

1,036 km avg 1h 57m 2 airlines

Departure

SEA KSEA MVFR

Seattle–Tacoma International Airport

Seattle, US

Local time
15:51 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
190° / 18G26 kt
Visibility
10 SM
Ceiling
BKN 1,700 ft, BKN 2,300 ft, OVC 4,000 ft
Temp / Dew
8°C / 6°C
Altimeter
29.90 inHg
Wx
-RA

Obs: 2026-04-14T21:53:00.000Z

Raw METAR / TAF 
METAR KSEA 142153Z 19018G26KT 10SM -RA BKN017 BKN023 OVC040 08/06 A2990 RMK AO2 PK WND 20031/2122 SLP133 P0005 T00830061

TAF KSEA 142100Z 1421/1524 20018G30KT 4SM -RA BR FEW015 BKN025 OVC030 FM150400 18010G20KT P6SM VCSH SCT025 OVC035 FM150900 15010KT P6SM OVC035 FM151500 18010KT P6SM VCSH BKN025 FM151900 19008KT P6SM -SHRA BKN030

flight Live Traffic

flight_takeoff 246 Departures
flight_land 247 Arrivals

Arrival

STL KSTL VFR

St. Louis Lambert International Airport

St Louis, US

Local time
17:51 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
618 ft
Coordinates
38.7487, -90.3700

cloud Weather

Wind
210° / 14G21 kt
Visibility
10 SM
Ceiling
SCT 6,000 ft, SCT 15,000 ft, BKN 25,000 ft
Temp / Dew
32°C / 18°C
Altimeter
29.80 inHg

Obs: 2026-04-14T21:51:00.000Z

Raw METAR / TAF 
METAR KSTL 142151Z 21014G21KT 10SM SCT060 SCT150 BKN250 32/18 A2980 RMK AO2 PK WND 20027/2134 SLP080 T03170178 $

TAF KSTL 142107Z 1421/1524 20012G22KT P6SM FEW035 SCT150 FM150500 22012G23KT 6SM -SHRA OVC100 PROB30 1506/1508 VRB15G35KT 2SM TSRA BKN050CB FM151000 21010KT P6SM BKN100 FM151500 20012G20KT P6SM BKN100

flight Live Traffic

flight_takeoff 68 Departures
flight_land 77 Arrivals
Flights tracked
7
Avg duration
1h 57m
Distance
1,036 km

Live traffic

SEA → STL. Live aircraft currently filed on this route.

Airlines 2

Airline Flights shown
Alaska Airlines 6
Southwest Airlines 1

Other connections

More destinations from SEA

More origins to STL

Recent flights last 7

DateFlightAircraftTakeoffLandingDurationArr Δ
2026-04-14 SWA952 AB5BF0 Apr 14, 05:15 UTCApr 14, 07:00 UTC1h 45m -
2026-04-13 ASA388 AD4744 Apr 13, 21:30 UTCApr 13, 23:45 UTC2h 15m -
2026-04-13 ASA388 AD4744 Apr 13, 19:50 UTCApr 13, 20:00 UTC10m -
2026-04-13 ASA388 AD4744 Apr 13, 16:35 UTCApr 13, 20:00 UTC3h 25m -
2026-04-13 ASA388 A29908 Apr 13, 00:20 UTCApr 13, 01:25 UTC1h 5m -
2026-04-12 ASA388 A29908 Apr 12, 23:55 UTCApr 13, 01:25 UTC1h 30m -
2026-04-12 ASA388 A29908 Apr 12, 16:52 UTCApr 12, 20:18 UTC3h 26m +8m

SEA → STL frequently asked

How long is the flight from SEA to STL?
Average flight time on the SEA–STL route is 1h 57m, covering approximately 1,036 km (643 mi).
What is the distance from SEA to STL?
The great-circle distance from SEA to STL is approximately 1,036 km (643 miles).
Which airlines fly from SEA to STL?
2 airlines operate this route in our records: Alaska Airlines, Southwest Airlines.
How many flights per week from SEA to STL?
We've observed ~2 flights per day on this route across our tracking data (7 total flights recorded).
Can I track SEA–STL flights live?
Yes. The live tracker map above shows aircraft currently flying this route, filtered by departure and arrival airport.