SEA to HNL Flight Delays Today & Most Reliable Flights

61% of SEA → HNL flights arrived on time in June-August 2026 (671 flights). The most reliable was AS 821, on time 88% of the time on this route. Morning flights did best (78%), evening flights worst (41%). Seattle (SEA): no delay reported. Honolulu (HNL): no delay reported.

Best time of day to fly SEA → HNL

Morning (before noon)	78%
Afternoon (noon-5 PM)	54%
Evening (after 5 PM)	41%

Flights SEA → HNL, most reliable first

Flight	Departs	On time on this route	Late avg	Cancelled
AS 821 Alaska Airlines	8:00 AM	88%	29m	2.2%
DL 351 Delta	8:25 AM	87%	23m	0%
DL 419 Delta	4:05 PM	64%	39m	0%
AS 121 Alaska Airlines	4:20 PM	59%	100m	6%
AS 626 Alaska Airlines	10:55 AM	58%	48m	0%
AS 761 Alaska Airlines	6:25 PM	57%	42m	0%
AS 899 Alaska Airlines	1:30 PM	40%	66m	1.1%
AS 855 Alaska Airlines	8:25 PM	22%	57m	6.8%

SEA conditions · HNL conditions · HNL → SEA · Cancellations

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From BTS on-time data, June-August 2026; flights with 20+ trips on this route. On-time rates cover each flight number's whole day, which can include other legs. Departure times are local.