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Flight records through . Security counts through .

Which SEA to DEN flight is punctual? United 1915, 5:07 am.

100% on time across 24 flights in the last 3 months, never cancelled.

Find your flightSEA security
DepartsFlightOn time
5:07 amUA 1915100%
5:15 amWN 361595%
5:00 amUA 260194%
8:56 amUA 150590%
8:04 amAS 37589%
11:02 amUA 171588%
3:40 pmUA 32587%
7:14 amAS 68286%
8 of 32 regular flights, ranked by arrivals on time, June to August 2026.

Which airline is most reliable? United, ahead of Alaska.

United landed on time 87% of the time, Alaska 77%.

Flight records,

  • United

    87%

    on time

    0.6% cancelled

  • Alaska

    77%

    on time

    0.6% cancelled

  • Delta

    75%

    on time

    0.8% cancelled

When do the flights leave? 32 regular flights, 5 am to 8:11 pm.

AS 682 was cancelled most often, 4% of the time.

Flight records,

  1. UA 2601 5:00 am, 0% cancelled 94%
  2. UA 1915 5:07 am, 0% cancelled 100%
  3. UA 1505 8:56 am, 0% cancelled 90%
  4. UA 1715 11:02 am, 0% cancelled 88%
  5. UA 757 11:02 am, 0% cancelled 77%
  6. UA 2832 12:44 pm, 0% cancelled 52%
  7. UA 1351 12:50 pm, 0% cancelled 77%
  8. UA 333 2:33 pm, 0% cancelled 65%
  9. UA 655 2:36 pm, 0% cancelled 67%
  10. UA 325 3:40 pm, 0% cancelled 87%
  11. UA 1218 7:54 pm, 0% cancelled 78%
  1. AS 682 7:14 am, 4% cancelled 86%
  2. AS 375 8:04 am, 1% cancelled 89%
  3. AS 535 11:44 am, 1% cancelled 57%
  4. AS 242 1:33 pm, 0% cancelled 58%
  5. AS 602 4:26 pm, 0% cancelled 57%
  6. AS 310 7:00 pm, 0% cancelled 65%
  7. AS 642 8:11 pm, 0% cancelled 57%
  1. DL 1358 8:10 am, 0% cancelled 77%
  2. DL 2543 1:50 pm, 1% cancelled 38%
  3. DL 2851 7:59 pm, 2% cancelled 71%
  1. WN 3615 5:15 am, 0% cancelled 95%
  2. WN 1384 6:30 am, 0% cancelled 75%
  3. WN 3397 7:50 am, 0% cancelled 82%
  4. WN 2860 10:45 am, 0% cancelled 55%
  5. WN 3616 12:20 pm, 0% cancelled 37%
  6. WN 4507 1:55 pm, 0% cancelled 18%
  7. WN 3617 2:35 pm, 0% cancelled 11%
  8. WN 4697 3:45 pm, 0% cancelled 50%
  9. WN 4845 7:20 pm, 0% cancelled 40%

What time should I fly? The 5 am departures.

96% landed on time; at 4 pm, 50%. Saturday was the best day, Monday the worst.

Flight records,

DepartsLanded on time
5 am96%
6 am94%
7 am86%
8 am86%
9 am90%
10 am74%
11 am77%
12 pm76%
1 pm64%
2 pm59%
3 pm76%
4 pm50%
5 pm67%
6 pm77%
7 pm74%
8 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.