Seattle Tacoma International Airport satellite view
📍 Seattle⬆ 433 ft4 runways
KSEA · SEA

Seattle Tacoma International Airport

47.44900°N
-122.30900°W
ARR / DAY
99
86.6%
DEP / DAY
90
88.0%
ON-TIME
85.8% Top 25%
arr · avg -4 min
dep · 85.8% · avg 7 min cal
AVG DELAY
-4 min
7d window

Seattle Tacoma International Airport (KSEA/SEA) is a large international airport located in Seattle, WA. It features 4 runways with the longest being 11,901 feet. SkyMeter has observed roughly 99 arrivals and 90 departures per day on average over the last 7 days, served by 21 carriers across 92 routes. The most active carrier is Alaska Airlines (ASA). The busiest route is to Ted Stevens Anchorage International Airport (PANC). On-time performance averages 86% with an average delay of -4 minutes against scheduled times. At the busiest hour of an average day, we calculated that a plane takes off or lands roughly every 49 seconds.

Current weather

Latest METAR observation

1h ago
Temp
62°F
Wind
5 kts
170°
Visib
10+ km
Ceil
KSEA 260953Z 17005KT 10SM FEW025 OVC048 17/14 A3002 RMK AO2 SLP171 T01670139 $

Communications Frequencies

2026-06-11
Type Freq (MHz) Hours
TWR 119.900 24
TWR 120.950 24
TWR 239.300 24
GND 121.700 24
ATIS 118.000 24
APCH 119.200
APCH 120.100
APCH 120.400
APCH 123.900
APCH 125.600
APCH 125.900
APCH 126.500
APCH 128.500
APCH 133.650
APCH 269.125
APCH 273.450
APCH 284.700
APCH 290.900
APCH 306.900
APCH 377.150
UNICOM 122.950
SEA VOT 117.500
OTHER 117.500
CLASS B 119.200
SUMMA DP 119.200
SEATTLE 119.200
MOUNTAIN 119.200
OTHER 119.200
LCL/P 119.900 24
CLASS B 120.100
ATOME DP 120.400
SUMMA DP 120.400
CLASS B 120.400
JEFPO DP 120.400
ISBRG DP 120.400
HAROB RN 120.400
OZWLD RN 120.400
ELMAA DP 120.400
BANGR RN 120.400
OTHER 120.400
LCL/P 120.950 24
EMERG 121.500 24
RAMP CTL 122.275 24
RAMP 122.275 24
GLASR ST 123.900
SKYKO ST 123.900
CHINS ST 123.900
OTHER 123.900
OLYMPIA 125.600
MARNR RN 125.600
HAWKZ RN 125.600
JAWBN ST 125.600
OTHER 125.600
CLASS B 125.900
RAMP CTL 126.250 24
RAMP 126.250 24
CLASS B 126.500
RAMP CTL 126.875 24
RAMP 126.875 24
CD/P 128.000 24
OTHER 128.000 24
CLASS B 128.500
FINAL 133.650
OTHER 133.650
LCL/P 239.300 24
EMERG 243.000 24
ISBRG DP 269.125
JEFPO DP 269.125
CLASS B 269.125
OZWLD RN 269.125
ATOME DP 269.125
SUMMA DP 269.125
OTHER 269.125
HAWKZ RN 273.450
JAWBN ST 273.450
FINAL 273.450
MARNR RN 273.450
OLYMPIA 273.450
OTHER 273.450
SEATTLE 284.700
MOUNTAIN 284.700
SUMMA DP 284.700
CLASS B 284.700
OTHER 284.700
CLASS B 290.900
CLASS B 306.900
GLASR ST 338.200
SKYKO ST 338.200
CHINS ST 338.200
OTHER 338.200
CLASS B 377.150
BANGR RN 395.000
HAROB RN 395.000
ELMAA DP 395.000
OTHER 395.000
Airport operations
ARTCC:
ZSE
Mag var:
16° E
Fuel:
A1

Destination network

Great-circle routes from KSEA · last 7d

142 destinations
Live destinations · drag to pan · scroll to zoom

Hourly traffic

Avg movements per hour · local time · last 30 days

peak 6 PM · 1 movement every 49 s
12a 1a 2a 3a 4a 5a 6a 7a 8a 9a 10a 11a 12p 1p 2p 3p 4p 5p 6p 7p 8p 9p 10p 11p

Top routes

Click any segment for full inspection

Route Operator Flights Avg enroute
SEAANC
Anchorage, US
Alaska Airlines 29 3h 35m
SEAPDX
Portland, US
SKY West Aviation 18 0h 57m
SEALAX
Los Angeles, US
Alaska Airlines 15 2h 28m
SEASFO
San Francisco, US
Alaska Airlines 14 2h 0m
SEALAS
Las Vegas, US
Alaska Airlines 13 2h 24m
SEASAN
San Diego, US
Alaska Airlines 13 2h 40m
SEAGEG
Spokane, US
SKY West Aviation 11 1h 0m
SEAEUG
Eugene, US
SKY West Aviation 11 1h 0m
SEAORD
Chicago, US
Alaska Airlines 11 3h 51m
SEAYVR
Vancouver, CA
SKY West Aviation 11 0h 40m
SEALAX
Los Angeles, US
Delta AIR Lines 10 2h 22m
SEAYVR
Vancouver, CA
Horizon AIR Industries 10 0h 40m
SEASLC
Salt Lake City, US
Delta AIR Lines 10 1h 56m
SEADFW
Dallas-Fort Worth, US
American Airlines 10 3h 50m
SEALAS
Las Vegas, US
Delta AIR Lines 10 2h 20m
SEASJC
San Jose, US
Alaska Airlines 10 1h 57m
SEASJC
San Jose, US
SKY West Aviation 9 2h 3m
SEARDM
Redmond, US
SKY West Aviation 9 0h 50m
SEASMF
Sacramento, US
Alaska Airlines 9 1h 44m
SEASLC
Salt Lake City, US
Alaska Airlines 9 1h 52m
© SkyMeter · All flight data subject to ODbL attribution · Updated 11:05 UTC