No clear winner: Delta’s SJC → SEA flights land within a few points of 9 in 10 on time whatever the hour.
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).
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.
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 4041flown by SkyWest | SJC 07:20 | SEA 09:49 | 2h 29m | 349 | 95% | 0.0% | 83 min |
| DL 3736flown by SkyWest | SJC 11:29 | SEA 13:59 | 2h 30m | 221 | 92% | 0.0% | 73 min |
| DL 3789flown by SkyWest | SJC 14:51 | SEA 17:14 | 2h 23m | 165 | 85% | 0.0% | 71 min |
| DL 3897flown by SkyWest | SJC 17:55 | SEA 20:13 | 2h 22m | 86 | 87% | 0.0% | 43 min |
| DL 4132flown by SkyWest | SJC 20:50 | SEA 23:20 | 2h 30m | 31 | 97% | 0.0% | 16 min |
| DL 4100flown by SkyWest | SJC 20:59 | SEA 23:25 | 2h 26m | 168 | 88% | 0.6% | 60 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 | SJC | SEA | 2h 25m | 89% | 0.2% | 1,579 | Flying now |
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