Airports AirportPace Search

Flight records through . Security counts through .

Which SEA to BWI flight is punctual? Alaska 781, 9:36 pm.

84% on time across 82 flights in the last 3 months, 1.2% cancelled.

Find your flightSEA security
DepartsFlightOn time
9:36 pmAS 78184%
9:03 amAS 37874%
10:30 pmWN 352561%
9:25 pmWN 361349%
4 of 4 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? Alaska, by a distance.

Alaska landed on time 84% of the time, Southwest 60%.

Flight records,

  • Alaska

    84%

    on time

    0.7% cancelled

  • Southwest

    60%

    on time

    0.8% cancelled

When do the flights leave? 4 regular flights, 9:03 am to 10:30 pm.

WN 3525 was cancelled most often, 4% of the time.

Flight records,

  1. AS 378 9:03 am, 0% cancelled 74%
  2. AS 781 9:36 pm, 1% cancelled 84%
  1. WN 3613 9:25 pm, 0% cancelled 49%
  2. WN 3525 10:30 pm, 4% cancelled 61%

What time should I fly? The 9 am departures.

85% landed on time; at 10 pm, 75%. Saturday was the best day, Thursday the worst.

Flight records,

DepartsLanded on time
9 am85%
10 am80%
9 pm77%
10 pm75%

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.