SEA Seattle–Tacoma International Airport
live · 19m ago
SeattleSeattle–Tacoma International Airport09:42·15°C·#293/327
OPSSMOOTH WEATHERVFR
2 min early

Seattle (SEA) airport average departure delay right now

Departures 2 min early, arrivals no data. 1 of 145 flights cancelled (0.7%).

Hour by hour
09:00today on time on time

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

Seattle (SEA) delays today: departures are running 2 min early, across 145 flights tracked so far. 1 of 145 tracked flights have been cancelled (0.7%). Source: official airport boards, METAR weather, Pro Flight Search tracking. Updated 6 September 2026 at 16:23 UTC.

Departures11 timed
On time82%9
Delayed18%2
typical now 2 min early
On the boardDeparturesfull board ↗
09:23 09:46AS313DTW Detroit · gate N20+23 min
09:33AS522BNA Nashville · gate N1on time
09:35DL3818PDX Portland · gate B1on time
09:35WN2220OAK Oakland · gate B10on time
09:40AS442PHL Philadelphia · gate N18on time
09:40DL1016SLC Salt Lake City · gate A8on time
09:43 10:08AS412PIT Pittsburgh · gate D6+25 min
09:45AS568MSY New Orleans · gate N2on 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 ↗
09:14 09:37AS78PIT from Pittsburgh+23 min
09:38AS1460ANC from Anchorageon time
09:42AS241IAH from Houstonon time
09:48AS320GEG from Spokaneon time
09:48AS491BUR from Burbankon time
09:49AS670RDU from Raleigh/Durhamon time
06:11AS122HNL from HonoluluCancelled
Running late right now35 of 993 still on the board · 3.5%
+88
AS583 from Chicago · arr 13:07
Flights this late at SEA still cancel only 2.4% of the time.
+83
DL356 from Fort Lauderdale · arr 13:02
Typical claw-back on this sector is ~35 min.
+76
DL438 → Boston · dep 12:31
A +76 min push, well beyond this airport's typical day.
+76
DL2449 → Phoenix · dep 13:16
A +76 min push, well beyond this airport's typical day.
In the air to SEAlive positions · 3-min feed
99aircraft inbound · next to land AS281 from Nashville, lands ~09:43
AS281Nashville
on final · ~09:43
DL2092Philadelphia
on final · ~09:43
DL699New York
on final · ~09:43
AS395Orlando
on final · ~09:43

Positions as of 09:39 local · updates every 3 min. Tap any flight to watch it on its own page.

Airlines by median delay todaymedian · min 3 legs
ASAlaska+17m
Why4 kt NNE winds, Scattered. Conditions like these carry no delay penalty at SEA in our weather × delay record.
Cancelled 0.7%1 of 145 A typical day here runs ~0.5%. Today is in line with 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 5th worst day of the last 30. Median day: +20 min departures.

Typical week here
+24
MON
+20
TUE
+18
WED
+25
THU
+21
FRI
+22
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 2 min early. Cancellations: 1 of 145 tracked flights (0.7%). The calmest upcoming departure hour looks like 10:00 (+5 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 2 min early, arrivals no data. 1 of 145 flights cancelled (0.7%).

What is the current weather at Seattle (SEA)?

Winds NNE-020 at 4kt, Vis 10sm, Temp 15°C, Dew 11°C, Alt 30.02 inHg, Few clouds at 4000ft, Few clouds at 8000ft, Scattered clouds at 17000ft. 15°C. wind 4 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 145 flights today: departures 2 min early, arrivals no data. 0.7% of tracked operations were cancelled.

What is the TAF forecast for SEA?

The next TAF period (VFR) forecasts: Winds NE-040 at 4kt, Vis greater than 6sm, Scattered clouds at 15000ft.

Are there cancellations at SEA today?

1 cancellation across 145 tracked flights today (0.7% 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), but the forecast (TAF) below dips to marginal visual ahead: small spacing adjustments are possible.
Wind20° 4 kt
Visibility>10 km
Temp / dew15 / 11 °C
Pressure1017 hPa
KSEA 061553Z 02004KT 10SM FEW040 FEW080 SCT170 15/11 A3002 RMK AO2 SLP171 T01500106 $
08:00 to 11:00VFRWinds NE-040 at 4kt, Vis greater than 6sm, Scattered clouds at 15000ft
11:00 to 16:00VFRWinds NNW-340 at 8kt, Vis greater than 6sm, Broken layer at 20000ft
16:00 to 20:00VFRWinds NW-310 at 9kt, Vis greater than 6sm, Sky clear
20:00 to 23:00VFRWinds Variable at 5kt, Vis greater than 6sm, Scattered clouds at 25000ft
METAR 08:53 local · 50m ago · delay window 09:23 local · How these are computed → methodology