Showing Alaska only (incl. its regional partners)All airlines ×

599 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

The nonstop is quickest: Alaska BWI → SEA (5h 51m), on time 7 times in 10. Alaska via Portland (9h 08m) is more reliable, 85%, but takes 3h 17m longer.

Best time to leave 7–8 am 78% arrive on time from BWI

Best single flight AS 379 BWI 18:07 → SEA 21:00 · 67% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

BWI

% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.


AS 379	BWI 18:07	SEA 21:00	67%

All 3 Alaska flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.


AS 786	BWI 07:03	SEA 09:53	5h 50m	52	82%	1.9%	42 min
AS 764	BWI 07:48	SEA 10:39	5h 51m	48	90%	0.0%	28 min
AS 379	BWI 18:07	SEA 21:00	5h 53m	336	67%	0.6%	49 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.


Alaska	BWI	SEA	5h 51m	72%	1.0%	599	Flying now

Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON