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6,800 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 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 AS 656 SFO 10:18 → SEA 12:27 · 57% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
SFO
96
95
93
90
82
62
78
73
76
75
60
77
60
73
83
70
68
64
% 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.
United (incl. SkyWest) 2,330 77% 0.5% 59 min
Delta (incl. SkyWest) 1,748 76% 1.4% 64 min
Alaska (incl. SkyWest, Horizon) 2,719 71% 1.3% 55 min
Southwest 3 – 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 2721 SFO 05:55 SEA 08:11 95%
AS 580 SFO 12:54 SEA 15:08 80%
DL 1412 SFO 13:38 SEA 15:59 77%
UA 2279 SFO 16:27 SEA 18:47 76%
AS 758 SFO 17:38 SEA 19:47 73%
· · ·
DL 3991flown by SkyWest SFO 20:59 SEA 23:24 67%
UA 1007 SFO 20:54 SEA 23:19 66%
AS 656 SFO 10:18 SEA 12:27 57%

All 30 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
AS 416 SFO 06:00 SEA 08:17 2h 17m 104 94% 1.0% 54 min
AS 620 SFO 06:03 SEA 08:13 2h 10m 51 90% 0.0% 42 min
UA 1708 SFO 07:00 SEA 09:22 2h 22m 60 92% 0.0% 88 min
AS 68 SFO 07:03 SEA 09:13 2h 10m 142 87% 0.7% 75 min
AS 1476 SFO 08:23 SEA 10:40 2h 17m 49 59% 0.0% 61 min
AS 1327 SFO 09:00 SEA 11:15 2h 15m 253 69% 2.0% 70 min
UA 2192 SFO 10:15 SEA 12:34 2h 19m 60 47% 1.7% 49 min
AS 656 SFO 10:18 SEA 12:27 2h 09m 207 57% 3.4% 61 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
UA 2744 SFO 12:10 SEA 14:30 2h 20m 79 72% 1.3% 60 min
AS 630 SFO 12:27 SEA 14:35 2h 08m 52 21% 0.0% 48 min
AS 580 SFO 12:54 SEA 15:08 2h 14m 223 80% 3.6% 54 min
DL 1412 SFO 13:38 SEA 15:59 2h 21m 346 77% 1.4% 94 min
UA 1265 SFO 14:00 SEA 16:20 2h 20m 58 59% 0.0% 53 min
AS 790 SFO 14:20 SEA 16:31 2h 11m 51 73% 0.0% 42 min
AS 1340 SFO 15:50 SEA 18:00 2h 10m 183 69% 0.5% 47 min
UA 2279 SFO 16:27 SEA 18:47 2h 20m 265 76% 0.0% 71 min
DL 3707flown by SkyWest SFO 17:30 SEA 19:50 2h 20m 331 68% 1.2% 48 min
AS 758 SFO 17:38 SEA 19:47 2h 09m 266 73% 0.4% 51 min
UA 1577 SFO 18:28 SEA 20:53 2h 25m 101 69% 0.0% 53 min
AS 1471 SFO 18:39 SEA 20:59 2h 20m 49 49% 0.0% 45 min
AS 591 SFO 20:28 SEA 22:41 2h 13m 231 72% 0.9% 58 min
UA 1007 SFO 20:54 SEA 23:19 2h 25m 211 66% 0.5% 61 min
DL 3991flown by SkyWest SFO 20:59 SEA 23:24 2h 20m 294 67% 0.7% 49 min
AS 316 SFO 21:46 SEA 23:59 2h 13m 77 69% 0.0% 62 min
UA 1389 SFO 22:59 SEA 01:13 2h 14m 10 78% 10.0% 60 min
UA 1885 SFO 22:59 SEA 01:13 2h 14m 17 62% 5.9% 34 min
UA 5579flown by SkyWest SFO 22:59 SEA 01:29 2h 30m 136 72% 0.7% 56 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.
United SFO SEA 2h 18m 77% 0.5% 2,330 Flying now
Delta SFO SEA 2h 20m 76% 1.4% 1,748 Flying now
Alaska SFO SEA 2h 15m 71% 1.3% 2,719 Flying now
Southwest SFO SEA – 100%few flights 0.0% 3 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