📍 Seattle⬆ 433 ft4 runways
KSEA · SEA
Seattle Tacoma International Airport
47.44900°N
-122.30900°W
ARR / DAY
376
▼
47.5%
DEP / DAY
375
▼
46.8%
ON-TIME
12.7%
Bottom 25%
arr · avg 56 minest
AVG DELAY
56 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 11,900 feet. SkyMeter has observed roughly 376 arrivals and 375 departures per day on average over the last 7 days, served by 31 carriers across 131 routes. The most active carrier is Alaska Airlines (ASA). The busiest route is to Portland International Airport (KPDX). On-time performance averages 13% with an average delay of 56 minutes against scheduled times. At the busiest hour of an average day, we calculated that a plane takes off or lands roughly every 44 seconds.
Safety incidents
Last 7 days · 2 total
Current weather
Latest METAR observation
Temp
64°F
Wind
9 kts
40°
Visib
10+ km
Ceil
—
Observed weather patterns
- • 26 of 1783 long rollouts (1%) coincided with visibility below 1 mile, 1.9× the rate observed during clear conditions.
Statistical association, not causation. Last 30 days.
Delays by hour
Avg minutes · local time · last 30 days
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Top carriers
Share of flights
Top destinations
By flight count
Carriers
Alaska Airlines
1,939
DAL
Delta AIR Lines
801
SKW
SKY West Aviation
684
QXE
Horizon AIR Industries
486
SWA
Southwest Airlines Co. (SAN Antonio
233
UAL
United Airlines
225
Show 34 more carriers →
AAL
American Airlines
165
ABX
ABX AIR
49
JZA
Jazz Aviation
44
CFS
Empire Airlines (Hayden Lake
37
FFT
Frontier Airlines
34
ATN
AIR Transport International (Little Rock
33
FDX
Federal Express
32
ICE
Icelandair
24
JBU
Jetblue Airways Corporation (NEW York
21
DLH
Deutsche Lufthansa
21
BAW
British Airways
20
EVA
EVA Airways
17
CAL
China Airlines
15
KAL
Korean AIR Lines
15
WJA
Westjet Airlines
14
THY
Turk Hava Yollari (Turkish Airlines Co.)
13
AMX
Aerovias de Mexico
12
SCX
MN Airlines
12
SJX
Starlux Airlines
12
AFR
AIR France
11
VOI
Concesionaria Vuela Compania de Aviacion
11
ENY
Envoy AIR
11
CFG
Condor Flugdienst
10
UAE
Emirates
10
QTR
Qatar Airways Group Q.C.S.C.
10
SIA
Singapore Airlines
10
AIH
AIR Incheon
10
JAL
Japan Airlines
10
SAS
Scandinavian Airlines System
9
VIR
Virgin Atlantic
9
CPA
Cathay Pacific Airways
8
EJA
Netjets Aviation
8
ACA
AIR Canada
7
WEN
Westjet Encore
7
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
Live destinations · drag to pan · scroll to zoom
Hourly traffic
Avg movements per hour · local time · last 30 days
Top routes
Click any segment for full inspection
See all routes →
80 routes
| Route | Operator | Flights | Avg enroute |
|---|---|---|---|
SEAANC Anchorage, US |
ASA
Alaska Airlines |
108 | 3h 22m |
SEAPDX Portland, US |
SKW
SKY West Aviation |
67 | 0h 55m |
SEASFO San Francisco, US |
ASA
Alaska Airlines |
64 | 2h 3m |
SEALAX Los Angeles, US |
DAL
Delta AIR Lines |
55 | 2h 29m |
SEALAX Los Angeles, US |
ASA
Alaska Airlines |
55 | 2h 32m |
SEAJNU Juneau, US |
ASA
Alaska Airlines |
55 | 2h 57m |
SEASAN San Diego, US |
ASA
Alaska Airlines |
53 | 2h 43m |
SEASLC Salt Lake City, US |
DAL
Delta AIR Lines |
53 | 1h 54m |
SEAGEG Spokane, US |
SKW
SKY West Aviation |
53 | 1h 4m |
SEAATL Atlanta, US |
DAL
Delta AIR Lines |
52 | 4h 47m |
SEAYVR Vancouver, CA |
QXE
Horizon AIR Industries |
51 | 0h 49m |
SEASNA Santa Ana, US |
ASA
Alaska Airlines |
49 | 2h 31m |
SEABOI Boise, US |
SKW
SKY West Aviation |
47 | 1h 21m |
SEAPSC Pasco, US |
SKW
SKY West Aviation |
46 | 0h 54m |
SEAPHX Phoenix, US |
ASA
Alaska Airlines |
44 | 2h 48m |
SEAYVR Vancouver, CA |
SKW
SKY West Aviation |
44 | 0h 53m |
SEADFW Dallas-Fort Worth, US |
AAL
American Airlines |
43 | 4h 0m |
SEALAS Las Vegas, US |
ASA
Alaska Airlines |
42 | 2h 23m |
SEABUR Burbank, US |
ASA
Alaska Airlines |
41 | 2h 18m |
SEAORD Chicago, US |
ASA
Alaska Airlines |
41 | 4h 2m |
© SkyMeter ·
All flight data subject to ODbL attribution
·
Updated 10:44 UTC