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

Take the nonstop: Alaska SUN → SEA (1h 54m) reaches Seattle on time 83% of the time; the most reliable connection, Delta via Salt Lake City (4h 21m), 71%.

Best time to leave 11 am–12 pm 87% arrive on time from SUN
Best single flight AS 2345 SUN 10:56 → SEA 11:49 · 87% 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).

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SUN
81
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.

Alaska (incl. Horizon) 417 85% 1.9% 55 min
Delta (incl. SkyWest) 38 – 2.6% 91 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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 2345flown by Horizon SUN 10:56 SEA 11:49 87%
All 3 flights on this route →

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 SUN SEA 1h 54m 85% 1.9% 417 Flying now
Delta SUN SEA 2h 04m 89%few flights 2.6% 38 Not 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