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

1,113 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

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

Best time to leave 5–6 am 94% arrive on time from PSC

Best single flight DL 3972 PSC 05:25 → SEA 06:39 · 93% on time Avoid DL 3992 PSC 12:30 → SEA 13:50 · 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).

PSC

% 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 3972flown by SkyWest	PSC 05:25	SEA 06:39	93%
DL 3992flown by SkyWest	PSC 12:30	SEA 13:50	85%

All 5 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 3972flown by SkyWest	PSC 05:25	SEA 06:39	1h 14m	224	93%	0.0%	207 min
DL 3992flown by SkyWest	PSC 12:30	SEA 13:50	1h 20m	162	85%	0.6%	62 min
DL 3891flown by SkyWest	PSC 15:25	SEA 16:40	1h 15m	71	90%	0.0%	42 min
DL 3955flown by SkyWest	PSC 15:25	SEA 16:35	1h 10m	31	90%	0.0%	123 min
DL 3890flown by SkyWest	PSC 17:30	SEA 18:44	1h 14m	31	87%	0.0%	47 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	PSC	SEA	1h 15m	91%	0.3%	1,113	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