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Showing Delta only (incl. its regional partners)All airlines ×
1,059 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: Delta’s SEA → MFR flights land within a few points of 9 in 10 on time whatever the hour.

Best time to leave 3–4 pm 91% arrive on time from SEA
Best single flight DL 3770 SEA 15:10 → MFR 16:44 · 92% on time Avoid DL 3779 SEA 11:18 → MFR 13:01 · 85% 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
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% 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.
DL 3770flown by SkyWest SEA 15:10 MFR 16:44 92%
DL 3954flown by SkyWest SEA 21:35 MFR 23:12 90%
DL 3779flown by SkyWest SEA 11:18 MFR 13:01 85%

All 3 Delta 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.
DL 3779flown by SkyWest SEA 11:18 MFR 13:01 1h 41m 207 85% 0.0% 82 min
DL 3770flown by SkyWest SEA 15:10 MFR 16:44 1h 34m 330 92% 0.3% 68 min
DL 3954flown by SkyWest SEA 21:35 MFR 23:12 1h 37m 365 90% 0.5% 77 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.
Delta SEA MFR 1h 34m 89% 0.8% 1,059 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