Apparatus

Try JFK, AAL1290, BAW, or N225AN.

route Route

KSTL → SEA

2,656 km avg 3h 20m 1 airline

Departure

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

Arrival

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
Flights tracked
3
Avg duration
3h 20m
Distance
2,656 km

Live traffic

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

Airlines 1

Airline Flights shown
Southwest Airlines 2

Other connections

More destinations from KSTL

More origins to SEA

Recent flights last 3

DateFlightAircraftTakeoffLandingDurationArr Δ
2026-04-13 ASA473 A97608 Apr 13, 12:21 UTCApr 13, 15:50 UTC3h 29m +15m
2026-04-13 SWA4473 AB6229 Apr 13, 00:20 UTCApr 13, 03:35 UTC3h 15m -
2026-04-13 SWA4473 AB6229 Apr 13, 00:12 UTCApr 13, 03:29 UTC3h 17m +7m

KSTL → SEA frequently asked

How long is the flight from KSTL to SEA?
Average flight time on the KSTL–SEA route is 3h 20m, covering approximately 2,656 km (1,649 mi).
What is the distance from KSTL to SEA?
The great-circle distance from KSTL to SEA is approximately 2,656 km (1,649 miles).
Which airlines fly from KSTL to SEA?
1 airline operates this route in our records: Southwest Airlines.
How many flights per week from KSTL to SEA?
We've observed ~3 flights per day on this route across our tracking data (3 total flights recorded).
Can I track KSTL–SEA flights live?
Yes. The live tracker map above shows aircraft currently flying this route, filtered by departure and arrival airport.