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
01:57 PDT
Timezone
America/Los_Angeles
Type
Large Airport
Elevation
433 ft
Coordinates
47.4479, -122.3103

cloud Weather

Wind
VRB / 3 kt
Visibility
10 SM
Ceiling
BKN 1,000 ft, OVC 1,900 ft
Temp / Dew
7°C / 6°C
Altimeter
29.78 inHg

Obs: 2026-04-15T08:31:00.000Z

Raw METAR / TAF 
SPECI KSEA 150831Z VRB03KT 10SM BKN010 OVC019 07/06 A2978 RMK AO2 RAE0754 P0000 T00670056

TAF KSEA 150733Z 1508/1612 23009KT 5SM -RA FEW006 BKN011 OVC035 FM150900 15009KT P6SM BKN040 FM151500 21007KT P6SM VCSH SCT025 BKN035 FM151900 22010G18KT P6SM -SHRA SCT030 BKN040 FM152300 23009KT P6SM -RA SCT025 BKN035 FM160200 03006KT P6SM -RA SCT025 BKN035

flight Live Traffic

flight_takeoff 174 Departures
flight_land 159 Arrivals

Arrival

STL KSTL VFR

St. Louis Lambert International Airport

St Louis, US

Local time
03:57 CDT
Timezone
America/Chicago
Type
Large Airport
Elevation
618 ft
Coordinates
38.7487, -90.3700

cloud Weather

Wind
220° / 9G18 kt
Visibility
10 SM
Ceiling
BKN 22,000 ft, OVC 25,000 ft
Temp / Dew
23°C / 17°C
Altimeter
29.83 inHg

Obs: 2026-04-15T08:51:00.000Z

Raw METAR / TAF 
METAR KSTL 150851Z 22009G18KT 10SM BKN220 OVC250 23/17 A2983 RMK AO2 SLP088 T02280167 55001 $

TAF KSTL 150828Z 1508/1612 21012G20KT P6SM FEW050 OVC150 PROB30 1519/1523 2SM -TSRA BKN040CB FM152300 20010KT P6SM BKN080 FM160300 23008KT 5SM -SHRA BKN080 TEMPO 1603/1606 2SM -TSRA BKN040CB FM160800 22008KT P6SM OVC100

flight Live Traffic

flight_takeoff 39 Departures
flight_land 39 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.