What happened
Cause: Thunderstorms in the Boston area led air traffic control to hold flights from departing to Boston Logan until conditions allowed.
The ground stop began at 21:25 UTC on November 12, 2026, holding departures to Boston Logan from four air traffic control centers. At 22:20 UTC it was extended by one hour, to 6:30 pm Eastern, and a new advisory was issued. It ended at 23:30 UTC, after 2 hours 5 minutes.
Impact by airline
- Delayed 30+ min
- 106
- Arrivals / departures
- 61 / 45
| Airline | Delayed | Avg delay | On ground | Holding |
|---|---|---|---|---|
| JetBlue B6 | 29 | 114 min | 4 | — |
| Delta Air Lines DL | 19 | 80 min | 3 | — |
| Republic Airways YX | 17 | 141 min | 3 | — |
| United Airlines UA | 15 | 91 min | — | — |
| American Airlines AA | 11 | 110 min | 1 | — |
| Southwest Airlines WN | 6 | 60 min | 1 | — |
| Cape Air KS | 3 | 44 min | — | — |
| Alaska Airlines AS | 2 | 49 min | — | — |
| Envoy Air MQ | 2 | 133 min | — | — |
| Porter Airlines PD | 2 | 189 min | — | — |
Delayed 30+ minOn ground / holding: most seen at once.
Held at origin
- Held at origin
- 0
- Average held
- —
- Longest
- —
No inbound flight has been seen held at its origin during this stop.
Inbound in the air and diversions
- Diverted
- 0
Diversions
No inbound flight has been seen diverting during this stop.
Impact by region
| Center | Status | Delayed |
|---|---|---|
| Washington Center (ZDC) | Held | 8 |
| New York Center (ZNY) | Held | 4 |
| Cleveland Center (ZOB) | Held | 1 |
| Boston Center (ZBW) | Held | 0 |
| Outside the US centers | Not held | 6 |
| Chicago Center (ZAU) | Not held | 6 |
| Los Angeles Center (ZLA) | Not held | 6 |
| Miami Center (ZMA) | Not held | 5 |
| Houston Center (ZHU) | Not held | 4 |
| Indianapolis Center (ZID) | Not held | 3 |
| Jacksonville Center (ZJX) | Not held | 3 |
| Oakland Center (ZOA) | Not held | 3 |
| Atlanta Center (ZTL) | Not held | 3 |
| Albuquerque Center (ZAB) | Not held | 1 |
| Denver Center (ZDV) | Not held | 1 |
| Fort Worth Center (ZFW) | Not held | 1 |
| Kansas City Center (ZKC) | Not held | 1 |
| Salt Lake City Center (ZLC) | Not held | 1 |
| Memphis Center (ZME) | Not held | 1 |
| Minneapolis Center (ZMP) | Not held | 1 |
| Seattle Center (ZSE) | Not held | 1 |
| San Juan Center (ZSU) | Not held | 1 |
Aircraft at the airport
On the ground Holding nearby
Timeline
Ground stop issued at BOS for thunderstorms, until 5:30 pm EST. Departures held from ZDC, ZNY, ZOB, ZBW.
Extended until 6:30 pm EST.
New advisory issued.
Read the advisory ↗Ground stop ended after 2 hr 5 min.
Advisories
ATCSCC ADVZY 141 BOS/ZBW 11/12/2026 CDM GROUND STOP
CTL ELEMENT: BOS ELEMENT TYPE: APT ADL TIME: 2213Z GROUND STOP PERIOD: 12/2203Z - 12/2330Z CUMULATIVE PROGRAM PERIOD: 12/1800Z - 13/0459Z DEP FACILITIES INCLUDED: (Manual) ZDC ZNY ZOB ZBW CYHZ CYOW CYUL CYYZ CYTZ CYQB PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 3767 / 358 / 126 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 5346 / 425 / 178 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: WEATHER / THUNDERSTORMS COMMENTS: EXTENDED 1HR. POSS GDP REVISIONOriginal advisory ↗
ATCSCC ADVZY 121 BOS/ZBW 11/12/2026 CDM GROUND STOP
CTL ELEMENT: BOS ELEMENT TYPE: APT ADL TIME: 2120Z GROUND STOP PERIOD: 12/2110Z - 12/2230Z CUMULATIVE PROGRAM PERIOD: 12/1800Z - 13/0459Z DEP FACILITIES INCLUDED: (Manual) ZDC ZNY ZOB ZBW CYHZ CYOW CYUL CYYZ CYTZ CYQB PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 2565 / 298 / 92 NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 3980 / 358 / 142 PROBABILITY OF EXTENSION: MEDIUM IMPACTING CONDITION: WEATHER / THUNDERSTORMS COMMENTS: GS EXTENDED 1 HROriginal advisory ↗