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Showing Delta only (incl. its regional partners)All airlines ×
1,748 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 95% depart on time. After 4 pm it’s 72%.

Best time to leave 5–6 am 95% arrive on time from SFO
Best single flight DL 2721 SFO 05:55 → SEA 08:11 · 95% on time Avoid DL 3991 SFO 20:59 → SEA 23:24 · 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).

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SFO
96
93
70
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69
% 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 2721 SFO 05:55 SEA 08:11 95%
DL 1412 SFO 13:38 SEA 15:59 77%
DL 3707flown by SkyWest SFO 17:30 SEA 19:50 68%
DL 3991flown by SkyWest SFO 20:59 SEA 23:24 67%

All 6 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 2721 SFO 05:55 SEA 08:11 2h 16m 349 95% 1.1% 116 min
DL 794 SFO 10:29 SEA 12:45 2h 16m 31 42% 0.0% 56 min
DL 2870 SFO 10:35 SEA 12:53 2h 18m 55 42% 0.0% 49 min
DL 1412 SFO 13:38 SEA 15:59 2h 21m 346 77% 1.4% 94 min
DL 3707flown by SkyWest SFO 17:30 SEA 19:50 2h 20m 331 68% 1.2% 48 min
DL 3991flown by SkyWest SFO 20:59 SEA 23:24 2h 20m 294 67% 0.7% 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.
Delta SFO SEA 2h 20m 76% 1.4% 1,748 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