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

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

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 63%.

Best time to leave 6–7 am 94% arrive on time from IAH

Best single flight AS 453 IAH 06:02 → SEA 08:40 · 88% on time Avoid AS 439 IAH 14:38 → SEA 17:21 · 72% 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).

IAH

% 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 453	IAH 06:02	SEA 08:40	88%
AS 439	IAH 14:38	SEA 17:21	72%

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 453	IAH 06:02	SEA 08:40	4h 38m	344	88%	0.9%	37 min
AS 241	IAH 08:00	SEA 10:41	4h 41m	80	85%	0.0%	91 min
AS 439	IAH 14:38	SEA 17:21	4h 43m	361	72%	0.3%	55 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	IAH	SEA	4h 43m	81%	0.6%	852	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