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BOS Delays
Every reading taken of BOS since this site started sampling the FAA's feed — what was holding traffic, why, and for how long. 35 of the 61 were ground delay programmes, the kind that costs an airline money. The worst hold recorded was 24h 21m.
61 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 |
|---|---|---|---|---|
| 29 Sep 2026 00:30 | ground delay | runway construction | 4h 24m | 24h 21m |
| 28 Sep 2026 00:32 | ground delay | wind | 3h 33m | 14h 33m |
| 27 Sep 2026 20:31 | ground delay | wind | 3h 33m | 14h 33m |
| 23 Sep 2026 20:38 | ground delay | runway construction | 1h 21m | 8h 28m |
| 28 Sep 2026 20:35 | ground delay | runway construction | 5h 14m | 8h 7m |
| 28 Sep 2026 16:32 | ground delay | runway construction | 5h 14m | 8h 7m |
| 28 Sep 2026 12:31 | ground delay | runway construction | 5h 14m | 8h 7m |
| 27 Sep 2026 16:34 | ground delay | wind | 4h 3m | 7h 6m |
| 27 Sep 2026 12:31 | ground delay | wind | 4h 3m | 7h 6m |
| 24 Sep 2026 16:37 | ground delay | runway construction | 1h 7m | 6h 30m |
| 24 Sep 2026 12:36 | ground delay | runway construction | 1h 7m | 6h 30m |
| 25 Sep 2026 00:36 | ground delay | runway construction | 1h 58m | 5h 18m |
| 24 Sep 2026 20:33 | ground delay | runway construction | 1h 58m | 5h 18m |
| 24 Sep 2026 00:34 | ground delay | runway construction | 2h 7m | 5h 7m |
| 30 Sep 2026 00:32 | ground delay | runway construction | 1h 14m | 5h 6m |
| 29 Sep 2026 20:31 | ground delay | runway construction | 1h 14m | 5h 6m |
| 22 Sep 2026 00:33 | ground delay | airport volume | 59m | 5h |
| 22 Sep 2026 21:28 | ground delay | runway construction | 1h 21m | 4h 31m |
| 22 Sep 2026 17:25 | ground delay | runway construction | 1h 21m | 4h 31m |
| 29 Sep 2026 16:32 | ground delay | runway construction | 1h 26m | 3h 23m |
| 29 Sep 2026 12:33 | ground delay | runway construction | 1h 26m | 3h 23m |
| 20 Sep 2026 16:34 | ground delay | other | 1h 35m | 3h 19m |
| 20 Sep 2026 12:35 | ground delay | other | 1h 35m | 3h 19m |
| 21 Sep 2026 21:23 | ground delay | low ceilings | 1h 45m | 3h 17m |
| 12 Oct 2026 01:38 | ground delay | RWY | 1h 10m | 3h |
| 12 Oct 2026 00:22 | ground delay | RWY | 1h 10m | 3h |
| 11 Oct 2026 20:24 | ground delay | runway construction | 1h 10m | 3h |
| 11 Oct 2026 16:28 | ground delay | runway construction | 1h 10m | 3h |
| 11 Oct 2026 12:22 | ground delay | runway construction | 1h 10m | 3h |
| 23 Sep 2026 16:37 | ground delay | runway construction | 52m | 2h 42m |
| 27 Sep 2026 00:34 | ground delay | WIND | 1h 2m | 2h 39m |
| 26 Sep 2026 20:30 | ground delay | WIND | 1h 2m | 2h 39m |
| 21 Sep 2026 13:30 | ground delay | runway construction | 45m | 1h 56m |
| 23 Sep 2026 12:32 | ground delay | runway construction | 28m | 1h 37m |
| 22 Sep 2026 13:30 | ground delay | runway construction | 25m | 1h 26m |
| 26 Sep 2026 18:57 | arrival | ZBW / WX:Wind | 46m | 1h |
| 19 Sep 2026 00:50 | departure | RWY:Construction | 31m | 45m |
| 27 Sep 2026 00:34 | departure | WX:Low Ceilings | 16m | 30m |
| 25 Sep 2026 00:36 | departure | RWY:Construction | 16m | 30m |
| 29 Sep 2026 00:30 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 28 Sep 2026 20:35 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 28 Sep 2026 16:32 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 28 Sep 2026 12:31 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 28 Sep 2026 08:33 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 28 Sep 2026 04:31 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 28 Sep 2026 00:32 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 27 Sep 2026 20:31 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 27 Sep 2026 16:34 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 27 Sep 2026 12:31 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 27 Sep 2026 08:31 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 27 Sep 2026 04:33 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 27 Sep 2026 00:34 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 26 Sep 2026 20:30 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 26 Sep 2026 18:57 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 26 Sep 2026 16:35 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 26 Sep 2026 12:33 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 26 Sep 2026 08:35 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 26 Sep 2026 04:35 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 26 Sep 2026 00:34 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 25 Sep 2026 20:37 | closure | !BOS 09/572 BOS AD AP CLSD TO NON SKED TRANSIENT ACFT EXC 6HR PPR 617-561-1919 2609251948-2609290359 | — | — |
| 25 Sep 2026 16:34 | closure | !BOS 09/569 BOS AD AP CLSD TO NON-SKED TRANSIENT ACFT 2609251626-2609290359 | — | — |
Source: the FAA's national airspace status feed. A ground delay programme holds aircraft at their origin because BOS cannot take them, and is the one that costs an airline money. The reason is quoted as the FAA writes it.