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4,422 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 94% depart on time. After 4 pm it’s 78%.

Best time to leave 6–7 am 97% arrive on time from SJC
Best single flight DL 4041 SJC 07:20 → SEA 09:49 · 95% on time Avoid AS 762 SJC 08:00 → SEA 10:20 · 78% 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
SJC
98
96
88
89
91
92
80
76
80
82
88
79
81
71
75
63
% 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) 1,579 89% 0.2% 66 min
Alaska (incl. SkyWest, Horizon) 1,934 82% 1.2% 52 min
Southwest 906 78% 0.0% 45 min
American 2 – 0.0% –
United 1 – 0.0% –

Dimmed: fewer than 150 flights in the year, too few to rank.

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 4041flown by SkyWest SJC 07:20 SEA 09:49 95%
DL 3736flown by SkyWest SJC 11:29 SEA 13:59 92%
AS 1311 SJC 10:19 SEA 12:30 91%
DL 4100flown by SkyWest SJC 20:59 SEA 23:25 88%
DL 3789flown by SkyWest SJC 14:51 SEA 17:14 85%
· · ·
AS 523 SJC 18:00 SEA 20:18 85%
AS 745 SJC 14:34 SEA 16:51 83%
AS 762 SJC 08:00 SEA 10:20 78%

All 23 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.
WN 3632 SJC 06:00 SEA 08:20 2h 20m 42 100% 0.0% –
AS 1314 SJC 06:17 SEA 08:34 2h 17m 136 87% 0.7% 39 min
DL 4041flown by SkyWest SJC 07:20 SEA 09:49 2h 29m 349 95% 0.0% 83 min
AS 762 SJC 08:00 SEA 10:20 2h 20m 160 78% 0.6% 39 min
AS 1426 SJC 08:20 SEA 10:31 2h 11m 52 41% 1.9% 60 min
AS 2186flown by Horizon SJC 09:59 SEA 12:13 2h 14m 28 96% 0.0% 21 min
AS 1311 SJC 10:19 SEA 12:30 2h 11m 300 91% 2.0% 36 min
DL 3736flown by SkyWest SJC 11:29 SEA 13:59 2h 30m 221 92% 0.0% 73 min
WN 1404 SJC 12:05 SEA 14:20 2h 15m 16 44% 0.0% 36 min
AS 583 SJC 13:14 SEA 15:31 2h 17m 57 89% 5.3% 110 min
WN 4982 SJC 14:10 SEA 16:20 2h 10m 41 76% 0.0% 37 min
AS 521 SJC 14:16 SEA 16:27 2h 11m 52 73% 1.9% 48 min
AS 745 SJC 14:34 SEA 16:51 2h 17m 220 83% 0.9% 47 min
DL 3789flown by SkyWest SJC 14:51 SEA 17:14 2h 23m 165 85% 0.0% 71 min
AS 1413 SJC 17:28 SEA 19:39 2h 11m 37 84% 0.0% 84 min
DL 3897flown by SkyWest SJC 17:55 SEA 20:13 2h 22m 86 87% 0.0% 43 min
AS 523 SJC 18:00 SEA 20:18 2h 18m 177 85% 0.6% 50 min
AS 481 SJC 18:45 SEA 21:00 2h 15m 53 53% 0.0% 61 min
AS 1304 SJC 20:15 SEA 22:37 2h 22m 142 79% 0.7% 41 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
WN 3705 SJC 21:35 SEA 21:30 2h 10m 58 64% 0.0% 47 min
AS 1436 SJC 21:38 SEA 23:47 2h 09m 14 69% 7.1% 44 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
Alaska SJC SEA 2h 17m 82% 1.2% 1,934 Flying now
Southwest SJC SEA 2h 15m 78% 0.0% 906 Flying now
American SJC SEA – 100%few flights 0.0% 2 Not flying now
United SJC SEA – 100%few flights 0.0% 1 Not 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