SEA Seattle–Tacoma International Airport
live · 8m ago
SeattleSeattle–Tacoma International Airport07:11·12°C·#292/327
OPSSMOOTH WEATHERVFR
4 min early

Seattle (SEA) airport average departure delay right now

Departures 4 min early, arrivals no data. 1 of 69 flights cancelled (1.4%).

Hour by hour
07:00today on time on time

Drag. Solid bars are observed. Hatched bars are expected.

Seattle (SEA) delays today: departures are running 4 min early, across 69 flights tracked so far. 1 of 69 tracked flights have been cancelled (1.4%). Source: official airport boards, METAR weather, Pro Flight Search tracking. Updated 5 September 2026 at 13:23 UTC.

On the boardDeparturesfull board ↗
07:00 07:05AS2202SUN Hailey · gate C16D+5 min
07:00 07:09UA2135IAH Houston · gate B9+9 min
07:08AS1341SJC San Jose · gate N20on time
07:08AS453PDX Portland · gate C2Gon time
07:13AS386ANC Anchorage · gate C9on time
07:14AS682DEN Denver · gate N7on time
07:15AA854CLT Charlotte · gate D11on time
07:15DL2055ORD Chicago · gate B8on time
16:15AS121HNL HonoluluCancelled

When this board posts +15, the median flight leaves +22. Posted vs. actual across every hub: the slippage study →

Arrivalsfull board ↗
06:11 08:43AS122HNL from Honolulu+152 min
07:20 07:47AS2067PUW from Pullman+27 min
07:20AS2354EUG from Eugeneon time
07:20AS2452MFR from Medfordon time
07:20AS499PDX from Portlandon time
07:35DL3775BOI from Boiseon time
06:00AS206OGG from KahuluiCancelled
Running late right now43 of 1125 still on the board · 3.8%
+176
AS1860 from Portland · arr 11:20
Flights this late at SEA still cancel only 2.4% of the time.
+152
AS122 from Honolulu · arr 08:43
Typical claw-back on this sector is ~36 min.
+147
AS761 from Bozeman · arr 10:35
Typical claw-back on this sector is ~29 min.
+128
DL384 from Boston · arr 13:21
Typical claw-back on this sector is ~36 min.
In the air to SEAlive positions · 3-min feed
82aircraft inbound · next to land AS722 from Missoula, lands ~07:18
AS722Missoula
lands ~07:18
DL814Detroit
lands ~07:19
DL440Honolulu
lands ~07:22
AS1358Sacramento
lands ~07:27

Positions as of 07:08 local · updates every 3 min. Tap any flight to watch it on its own page.

Why0 kt N winds, Broken at 11,000 ft. Conditions like these carry no delay penalty at SEA in our weather × delay record.
Cancelled 1.4%1 of 69 A typical day here runs ~0.5%. Today is above normal. Weather window Forecast (TAF) 🌤 staying clear No significant weather in the TAF window. Made up in the air Network figure ~29 min Network-wide median for delayed flights in our tracked sample.
Last 30 days

Today is the 9th worst day of the last 30. Median day: +20 min departures.

Typical week here
+24
MON
+20
TUE
+18
WED
+25
THU
+21
FRI
+21
SAT
+22
SUN

Last 90 days: lightest on Wednesday (+18 min), heaviest on Thursday (+25 min).

Watch this airportfree · no account

One message when SEA crosses your line, one when it clears. Nothing else, ever.

Tell me when delays go

From forecast@proflightsearch.com · one-tap unwatch in every message.

Sample · what you getSEA went yellow · departures now +34 min and building · 19:40 local. Weather clears after 03:00. → proflightsearch.com/airport-delays/seattle-SEA

Seattle airport delays today

SEA is running smoothly. A typical departure is currently 4 min early. Cancellations: 1 of 69 tracked flights (1.4%). The calmest upcoming departure hour looks like 08:00 (+6 min expected).

Nearby gateways: PDX GEG BOI RNO SMF JAC · Global delay board · Nonstop routes from Seattle

Is Seattle (SEA) delayed right now?

SEA is running smoothly. Departures 4 min early, arrivals no data. 1 of 69 flights cancelled (1.4%).

What is the current weather at Seattle (SEA)?

Winds Calm, Vis 10sm, Temp 12°C, Dew 9°C, Alt 30.04 inHg, Broken layer at 11000ft, Broken layer at 25000ft. 12°C. wind 0 kt. visibility >10 km. flight rules VFR.

What is the best day to fly from Seattle (SEA)?

Over the last 90 days, Wednesday averaged the lightest departure delays (+18 min). Thursday ran heaviest (+25 min).

How often are flights delayed at SEA today?

We tracked 69 flights today: departures 4 min early, arrivals no data. 1.4% of tracked operations were cancelled.

What is the TAF forecast for SEA?

The next TAF period (VFR) forecasts: Winds Variable at 3kt, Vis greater than 6sm, Broken layer at 11000ft.

Are there cancellations at SEA today?

1 cancellation across 69 tracked flights today (1.4% of operations).

Cite this data

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Suggested citation

Pro Flight Search: Seattle (SEA) live delay and board tracking, measured from official airport boards.

Canonical URL
https://proflightsearch.com/airport-delays/seattle-SEA
How we measure this →
Technical · METAR, flight rules & indexes
VFRRight now visual (VFR). Weather isn’t the binding constraint right now, and the forecast (TAF) below stays visual.
Wind0° 0 kt
Visibility>10 km
Ceiling11,000 ft
Temp / dew12 / 9 °C
Pressure1017 hPa
KSEA 051353Z 00000KT 10SM BKN110 BKN250 12/09 A3004 RMK AO2 SLP179 T01220089 $
05:00 to 10:00VFRWinds Variable at 3kt, Vis greater than 6sm, Broken layer at 11000ft
10:00 to 14:00VFRWinds N-360 at 4kt, Vis greater than 6sm, Scattered clouds at 8000ft, Broken layer at 11000ft
14:00 to 19:00VFRWinds NW-320 at 8kt, Vis greater than 6sm, Broken layer at 8000ft
19:00 to 02:00VFRWinds NNE-030 at 10kt, Vis greater than 6sm, Broken layer at 8000ft
METAR 06:53 local · 18m ago · delay window 06:23 local · How these are computed → methodology