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Sun, Oct 4 has passed, so this is the 12-month record.

2,301 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: airlines and hours on this route all land within a few points of 86% on time.

Best time to leave 11 pm–12 am 92% arrive on time from SEA
Best single flight DL 3770 SEA 15:10 → MFR 16:44 · 92% on time Avoid AS 2111 SEA 08:25 → MFR 09:54 · 82% 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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SEA
90
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82
72
89
% 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.

Delta (incl. SkyWest) 1,059 89% 0.8% 71 min
Alaska (incl. SkyWest, Horizon) 1,242 84% 2.3% 41 min

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.

DL 3770flown by SkyWest SEA 15:10 MFR 16:44 92%
DL 3954flown by SkyWest SEA 21:35 MFR 23:12 90%
AS 2461flown by Horizon SEA 22:40 MFR 00:04 89%
DL 3779flown by SkyWest SEA 11:18 MFR 13:01 85%
AS 2111flown by Horizon SEA 08:25 MFR 09:54 82%
All 9 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.

Delta SEA MFR 1h 34m 89% 0.8% 1,059 Flying now
Alaska SEA MFR 1h 26m 84% 2.3% 1,242 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