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Flight records through August 2026. Security counts through October 31, 2026.

Which SEA to BUR flight is punctual? Alaska 488, 6:40 am.

86% on time across 59 flights in the last 3 months, 8.5% cancelled.

Find your flight SEA security

SEA to BUR flights that landed on time most often
Departs	Flight	On time
6:40 am	AS 488	86%
9:43 am	AS 426	86%
5:58 pm	AS 1585	75%
5:58 pm	AS 1372	73%
11:20 am	AS 529	68%
3:10 pm	AS 331	61%
7:23 pm	AS 1408	37%

7 of 7 regular flights, ranked by arrivals on time, June to August 2026.

When do the flights leave? 7 regular flights, 6:40 am to 7:23 pm.

AS 488 was cancelled most often, 8% of the time.

Flight records, June to August 2026

AS 488 6:40 am, 8% cancelled 86%
AS 426 9:43 am, 3% cancelled 86%
AS 529 11:20 am, 4% cancelled 68%
AS 331 3:10 pm, 3% cancelled 61%
AS 1372 5:58 pm, 3% cancelled 73%
AS 1585 5:58 pm, 0% cancelled 75%
AS 1408 7:23 pm, 0% cancelled 37%

What time should I fly? The 2 pm departures.

91% landed on time; at 1 pm, 65%. Tuesday was the best day, Friday the worst.

Flight records, September 2025 to August 2026

Share of SEA to BUR flights landing less than 15 minutes late, by scheduled departure hour
Departs	Bar	Landed on time
6 am		86%
7 am		85%
8 am		85%
9 am		87%
10 am		78%
11 am		72%
12 pm		90%
1 pm		65%
2 pm		91%
3 pm		78%
4 pm		84%
5 pm		76%
7 pm		67%

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

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

Security counts, 8 weeks to October 31, 2026

People screened per hour at SEA checkpoints, by weekday and hour; choose a cell to read it
	4a				8a				12p				4p				8p
Mon
Tue
Wed
Thu
Fri
Sat
Sun

People screened per hour at SEA checkpoints, by weekday and hour; choose a cell to read it
	Mon	Tue	Wed	Thu	Fri	Sat	Sun
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.