Boston Logan Ground Delay Program Averages 117 Minutes August 2

Boston Logan International Airport is operating under a Federal Aviation Administration ground delay program on August 2, 2026, after thunderstorms forced arrival metering into the hub and long gate holds for many departures.

If you are flying into or out of BOS tonight, treat the published time as provisional. Check your airline app before you leave for the curb, and use any weather rebooking path before a long Expect Departure Clearance Time turns into a missed connection or an overnight stay.

A ground delay program is the FAA tool that holds flights on the ground at origin airports so Boston does not fill with aircraft that cannot land safely in the weather. It is not the same thing as an airline canceling a route for commercial reasons.

For travelers, the practical effect is simple. Your plane may board on time and still sit at the gate, or your inbound flight may leave late from a clear city because Boston is the constrained airport.

What the FAA published for Logan

The Command Center issued a CDM ground delay program advisory for BOS listing weather and thunderstorms as the impacting condition. The advisory set a jet-only program for contiguous United States departures, recorded a maximum delay of 391 minutes, and listed an average delay of 117 minutes after an earlier ground stop was cancelled.

Primary source for those program numbers is the FAA ATCSCC ground delay program advisory for Boston. The same notice described arrivals estimated through the overnight period and a stepped program rate as controllers recovered capacity.

The live airport status page matched the weather story with different public averages that travelers see first. It reported a traffic management program for arrivals into Logan because of weather and thunderstorms, with some arriving flights delayed an average of 1 hour and 57 minutes, and the same average for departure traffic destined to BOS from other airports.

That destination delay is the hidden cost for people who never set foot in Massachusetts rain. A flight leaving Chicago or Charlotte can sit for nearly two hours because Boston cannot accept the arrival yet, even when the origin sky is clear.

On the ground at Logan, the status page reported gate hold and taxi delays between 45 and 59 minutes from thunderstorms at the last public refresh, described as decreasing, while airborne arrival delays at the field itself were shorter at 15 minutes or less. Boarding does not equal wheels up when the program is active.

How an EDCT changes a Logan trip

Under a ground delay program, many flights receive an Expect Departure Clearance Time, often shortened to EDCT.

The airline cannot invent a runway slot that the traffic system has not assigned, which is why the gate agent may sound calm while the departure time keeps sliding in 20 to 40 minute steps.

If you hold a tight same-evening connection out of Boston, protect the outbound first. A late inbound that still lands can strand you when the last regional flight of the night has already left for Portland, Burlington, or Nantucket.

Checked bags create a second risk when the airline rebooks you onto a later flight or a different aircraft.

Photograph bag tags and keep medications and one change of clothes in the cabin with you.

For people arriving into the city after a long hold, a simple evening plan beats wandering Terminal B. If the airline confirms a multi-hour gap before the next flight, a short city list such as things to do in Boston is more useful than another lap of the food court, provided you stay close enough to return when the app pings.

What independent trackers and carriers add

Independent trackers such as the FlightAware live board for Boston Logan can lag official metering, but they help confirm whether your exact flight is already marked delayed or cancelled.

Pair any tracker screen with the airline message and the FAA status page before you spend money on a new ticket.

JetBlue published a separate East Coast weather change-fee waiver covering many August 2 and 3 itineraries, which matters for flexible Blue tickets but does not rewrite another carrier contract. Deep Arrival covered that product decision in JetBlue Waives East Coast Change Fees for August 2 and 3 Weather.

Other Northeast fields also ran weather programs on the same evening, which can complicate connections that leave Boston for Newark, Philadelphia, or Reagan National.

Those are separate airport streams. Your first job remains the BOS program numbers and your own airline rebooking rules.

A different Boston day already sits in the archive for July 29, when low ceilings drove a Logan ground delay program with a published average near 106 minutes. Sunday is a thunderstorm metering day with higher maximum assigned delay and a fresh status-board average near two hours, not a rewrite of that earlier ceiling event.

Who should act first

Same-day leisure travelers with flexible tickets and one bag should rebook early if the app shows multi-hour slips. Business travelers on the last flight into Logan have fewer options once hotel inventory near the airport tightens and the Silver Line and water taxis stop matching late arrivals.

Regional-jet passengers should watch cancellations more closely than mainline widebody traffic.

When arrival rates drop, carriers often protect larger aircraft and cancel thinner partner frequencies first. If your ticket is on a regional partner, refresh status more often than once an hour.

People still shopping Monday morning tickets out of Boston should prefer later banks when the overnight recovery still looks messy.

An 8 a.m. departure that depends on Sunday night cleanup often looks safer on a booking screen than it feels at 5:30 a.m. in a still-recovering terminal.

If you can move the trip by a full day without large change fees, that is often cleaner than forcing a same-evening connection through a hub that is still releasing aircraft on EDCTs. If you cannot move, build a hotel plan before the last shuttle leaves.

Storm programs can lift quickly once the line moves, and the same status page that showed nearly two-hour averages can drop to minor delays within one bank. Until that happens, plan as if the published time is a target, not a promise, and keep one rebooking path open.