SFO Delays

Every reading taken of SFO since this site started sampling the FAA's feed — what was holding traffic, why, and for how long. 30 of the 34 were ground delay programmes, the kind that costs an airline money. The worst hold recorded was 3h 45m.

34 readings

Newest first. The FAA keeps none of this, so every row here is a sample that would otherwise be gone.

When	Kind	Reason	Typical	Worst
21 Sep 2026 01:57	ground delay	low ceilings	54m	3h 45m
19 Sep 2026 16:34	ground delay	low ceilings	50m	2h 57m
19 Sep 2026 14:36	ground delay	low ceilings	50m	2h 57m
19 Sep 2026 14:21	ground delay	low ceilings	50m	2h 57m
22 Sep 2026 00:33	ground delay	low ceilings	50m	2h 52m
26 Sep 2026 00:34	ground delay	runway construction	32m	2h 50m
25 Sep 2026 20:37	ground delay	runway construction	32m	2h 50m
28 Sep 2026 04:31	ground delay	low ceilings	1h 15m	2h 12m
28 Sep 2026 00:32	ground delay	low ceilings	1h 15m	2h 12m
21 Sep 2026 21:23	ground delay	low ceilings	1h 2m	2h 5m
21 Sep 2026 13:30	ground delay	low ceilings	1h 2m	2h 5m
28 Sep 2026 16:32	ground delay	low ceilings	44m	2h
28 Sep 2026 12:31	ground delay	low ceilings	44m	2h
20 Sep 2026 16:34	ground delay	low ceilings	52m	1h 58m
22 Sep 2026 17:25	ground delay	low ceilings	40m	1h 50m
22 Sep 2026 13:30	ground delay	low ceilings	40m	1h 50m
10 Oct 2026 20:39	ground delay	low ceilings	29m	1h 46m
10 Oct 2026 20:16	ground delay	low ceilings	29m	1h 46m
10 Oct 2026 19:46	ground delay	low ceilings	29m	1h 46m
10 Oct 2026 19:14	ground delay	low ceilings	29m	1h 46m
10 Oct 2026 18:42	ground delay	low ceilings	29m	1h 46m
27 Sep 2026 20:31	ground delay	low ceilings	49m	1h 42m
27 Sep 2026 16:34	ground delay	low ceilings	49m	1h 42m
27 Sep 2026 12:31	ground delay	low ceilings	49m	1h 42m
19 Sep 2026 00:50	ground delay	airport volume	38m	1h 38m
25 Sep 2026 16:34	ground delay	low ceilings	44m	1h 34m
25 Sep 2026 12:38	ground delay	low ceilings	44m	1h 34m
23 Sep 2026 16:37	ground delay	low ceilings	34m	1h 23m
12 Oct 2026 01:38	ground delay	runway construction	34m	1h 22m
12 Oct 2026 00:22	ground delay	runway construction	34m	1h 22m
28 Sep 2026 00:32	departure	RWY:Construction	31m	45m
24 Sep 2026 20:33	departure	RWY:Construction	31m	45m
25 Sep 2026 20:37	departure	VOL:Volume	16m	30m
22 Sep 2026 21:28	departure	RWY:Construction	16m	30m

Source: the FAA's national airspace status feed. A ground delay programme holds aircraft at their origin because SFO cannot take them, and is the one that costs an airline money. The reason is quoted as the FAA writes it.

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