Is there a ground stop at BOS today?
Live FAA delay status for Boston Logan International Airport (KBOS, Boston, MA): ground stops, ground delay programs and delays right now, what the FAA has listed for BOS recently, and how often flights here actually run late.
No ground stop at BOS right now, but the FAA is reporting a ground delay program (metered arrivals, not a full stop).
Details are in the FAA delay status card below. Checked Sep 22, 2026 · 2033Z (4:33 PM EDT); this page refreshes about every two minutes.
FAA Delay Status
FAA NAS Status for KBOS
FAA NAS Status is reporting a ground delay program for Boston Logan International Airport (KBOS).
Updated Sep 22, 2026 · 1706Z (1:06 PM EDT) · Source: FAA NAS Status
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Recent FAA events at BOS
Ground stops and delay programs the FAA has listed for BOS in the last 90 days, from ATIS Alerts' own log of FAA NAS Status.
- Ground StopSep 22, 2026 · 1631Z (12:31 PM EDT)lasted 37 min · runway construction
- Ground Delay ProgramSep 22, 2026 · 1136Z (7:36 AM EDT)in effect · runway construction · avg delay 81 min
- Departure DelaysSep 19, 2026 · 0005Z (8:05 PM EDT)lasted 1h 2m · rwy:construction · avg delay 38 min
- Arrival DelaysAug 28, 2026 · 1826Z (2:26 PM EDT)lasted 36 min · zbw / rwy:rwy change - operational necessity · avg delay 23 min
Durations are the time the FAA kept the event listed. Log complete from 2026-09-22; older rows are the last event of each type seen by the ATIS Alerts bot since 2026-07-22.
How often is BOS delayed?
Airline on-time performance at BOS, Jun 2025 to May 2026, from the US DOT Bureau of Transportation Statistics.
142,759 scheduled airline arrivals and 142,771 departures in the period. Best month: May 2026 (79.7% on time); worst: Sep 2025 (63.6%). 37% of arrival delay minutes were charged to weather or the National Airspace System, the categories a ground stop or ground delay program falls under.
On-time arrivals by month
Bar = share of arrivals within 15 minutes of schedule; largest month had 12,917 arrivals.
What caused the delays
- 37%Late-arriving aircraft
- 34%National Airspace System (ATC, volume, non-extreme weather)
- 26%Airline (crew, maintenance, ground handling)
- 3%Extreme weather
- 0%Security
Shares of delay minutes on arrivals 15+ minutes late, as reported by the carriers to the DOT.
Source: BTS Airline On-Time Performance (reporting carriers; regional, cargo, and general aviation flights are not included). Published about two months after each month ends.
Weather at KBOS right now
Weather drives most ground stops: thunderstorms, low ceilings, wind and snow.
METAR KBOS 221954Z COR 07016KT 10SM FEW035 FEW250 17/08 A3039 RMK AO2 SLP290 T01670078
What a ground stop at BOS means
When the FAA issues a ground stop for Boston Logan Intl, aircraft headed there are held at their departure airports until it lifts; flights already airborne continue, hold, or divert. It is the FAA's most severe traffic-management step short of closing the airport, and it is usually issued in 30 to 90 minute increments that get extended while the cause persists, then often converted into a ground delay program as conditions improve.
Passengers:your aircraft is probably sitting at its origin; the airline's "delayed" status usually resolves in waves after the stop lifts. Pilots: a stop at BOS ripples into the satellite airports and the whole TRACON; check the national board for programs at your alternate.
Terminology: ground stops explained · GDPs and EDCTs explained
BOS ground stop FAQ
How do I know if BOS has a ground stop right now?
The banner at the top of this page reads the FAA's NAS Status feed about every two minutes. A red banner means the FAA currently lists a ground stop for Boston Logan Intl; green means it does not. The official source is nasstatus.faa.gov.
How long do ground stops at BOS last?
The ground stops we have recorded at BOS stayed listed for about 30 minutes on average. Nationally, most stops run 30 to 90 minutes per issuance, but a stalled line of storms can keep one extended for hours.
Does a ground stop mean my flight is cancelled?
No. It means departures to BOSare held, not cancelled. Airlines cancel on their own when the backlog cannot be recovered, so watch your carrier's updates alongside this page.
⚠️ Informational only. FAA NAS Status is the authoritative source for delay programs; your airline or dispatch governs your flight. ATIS Alerts is not affiliated with the FAA.