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Flight records through . Security counts through .

Which SEA to KOA flight is punctual? Alaska 200, 6:59 pm.

83% on time across 77 flights in the last 3 months, 1.3% cancelled.

Find your flightSEA security
DepartsFlightOn time
6:59 pmAS 20083%
3:59 pmAS 23876%
2:30 pmDL 34073%
11:27 amAS 20462%
4 of 4 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? Delta and Alaska, neck and neck.

Delta landed on time 74% of the time, Alaska 72%.

Flight records,

  • Delta

    74%

    on time

    2.2% cancelled

  • Alaska

    72%

    on time

    1.1% cancelled

When do the flights leave? 4 regular flights, 11:27 am to 6:59 pm.

AS 238 was cancelled most often, 3% of the time.

Flight records,

  1. DL 340 2:30 pm, 2% cancelled 73%
  1. AS 204 11:27 am, 1% cancelled 62%
  2. AS 238 3:59 pm, 3% cancelled 76%
  3. AS 200 6:59 pm, 1% cancelled 83%

What time should I fly? The 4 pm departures.

92% landed on time; at 9 am, 60%. Wednesday was the best day, Friday the worst.

Flight records,

DepartsLanded on time
7 am79%
8 am83%
9 am60%
10 am70%
11 am65%
12 pm70%
1 pm75%
2 pm78%
3 pm72%
4 pm92%
5 pm62%
6 pm72%
7 pm77%

When is SEA security busiest? 6 to 10 every morning.

Calmest around 5 pm. Seattle security, hour by hour.

Security counts,

4a8a12p4p8p
Mon
Tue
Wed
Thu
Fri
Sat
Sun
MonTueWedThuFriSatSun
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p

Friday, 7 am

4,660

people screened, all terminals.