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Boston Logan International Airport (BOS) delays and on-time record

Boston, Massachusetts KBOS #16 US airport by passengers

Live airport-wide delay programs from the FAA, the weather that causes them, and how each airline has actually performed at BOS.

FAA status
No delays reported Updated 4 min ago
Weather now
VFR 51°F Observed 6 h ago
Late departures
22.7%May 2026 to July 2026
Security line
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FAA delay status for BOS

The FAA is not reporting a ground stop, ground delay program or other delay at BOS right now.

Source: FAA National Airspace System Status, checked 4 min ago. Airline-specific delays are not shown here.

Current conditions at BOS

VFR

51°F11°C

Good visibility and high cloud base. Normal operations are typical.

Wind
330° 7 mph
Visibility
10+ mi
Clouds
BKN 25,000 ft
Ceiling
25,000 ft
Pressure
30.40 inHg

METARMETAR KBOS 101154Z 33006KT 10SM BKN250 11/04 A3040 RMK AO2 SLP295 T01060039 10139 20094 53032

Source: NOAA Aviation Weather Center. Observed 6 h ago.

On-time performance at BOS

Based on 38,654 departures from May 2026 to July 2026. A flight counts as late when it leaves 15 or more minutes after schedule.

22.7%Departures late
25.2%Arrivals late
2.79%Cancelled
18.2 minAverage departure delay
On-time performance by airline at BOS
AirlineDeparturesLateCancelled
JetBlue Airways 9,757 26.6% 3.76%
Republic Airways 9,516 19.2% 4.07%
Delta Air Lines 7,071 19.6% 1.73%
American Airlines 4,801 21.8% 2.48%
United Airlines 3,628 19.9% 1.27%
Southwest Airlines 2,137 41.0% 1.26%
Alaska Airlines 727 20.5% 0.41%
Envoy Air 560 18.4% 1.96%
Frontier Airlines 258 19.0% 1.94%
Allegiant Air 193 15.0% 0.52%

Source: Bureau of Transportation Statistics, On-Time Performance of reporting carriers. Smaller regional carriers and some airlines are not included.

Late departures by month

AprMayJunJul

How delays work at BOS

A ground stop holds flights bound for BOS at their origin airports. A ground delay program spaces arrivals out so the airport is not overloaded. Departure and arrival delay messages describe the average wait the FAA expects. None of these tell you whether your own flight is late, so always check your airline as well.

Local tips

  • The free SL1 Silver Line is the cheapest way to South Station. It runs from every terminal.
  • Park at Central Parking or the Terminal B Garage if you want to walk inside the airport. Economy is cheaper, but the shuttle adds time.
  • If you are connecting to or from Terminal E, check the terminal transfer rules with your airline and leave extra time.
  • Book Massport's $29 advance reservation early, because the limited spaces can sell out before peak travel times.
  • Route 11 serves all terminals from 9 a.m. to 10 p.m., so it is the easiest free shuttle to check first.
  • Massport asks that all vehicles park head-in at its garages, so follow the signs from the inbound roadway.