BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
LGA→BOS

New York, NY (LGA) to Boston, MA (BOS) flight delay odds

69.8% of 7,255 official scheduled LGA-to-BOS flights arrived on time; 18.1% arrived at least 30 minutes late and 5.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALHigher disruption
69.8%arrived on time
18.1%30+ min late
5.3%cancelled
7,255scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.3%all scheduled flights
120+ minutes late3.3%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+8.7 mincompleted flights

Which departure time was most reliable for LGA to BOS?

Among qualifying LGA-to-BOS departure window results, Early morning had the highest on-time rate: 85.9% of 1,549 flights. Evening was lowest at 55.6% across 1,693 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,54985.9%6.0%4.1%
Late morning1,28578.1%12.0%3.2%
Afternoon2,34166.7%21.2%4.2%
Evening1,69355.6%28.1%8.7%
Night38758.9%25.3%8.8%

Which weekday was most reliable for LGA to BOS?

Among qualifying LGA-to-BOS weekday results, Saturday had the highest on-time rate: 83.1% of 367 flights. Sunday was lowest at 62.6% across 938 flights.

DayFlightsOn time30+ minCancelled
Monday1,19067.3%15.9%9.7%
Tuesday1,21872.7%16.7%4.4%
Wednesday1,19272.5%16.5%3.9%
Thursday1,17266.0%21.9%4.7%
Friday1,17872.2%18.2%3.3%
Saturday36783.1%9.3%1.9%
Sunday93862.6%23.6%7.5%

Which airline was most reliable for LGA to BOS?

Among qualifying LGA-to-BOS airline results, Delta Air Lines had the highest on-time rate: 73.3% of 543 flights. Republic Airways was lowest at 69.5% across 6,712 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways6,71269.5%18.1%5.4%
Delta Air Lines54373.3%18.8%3.9%

Which month was most reliable for LGA to BOS?

Among qualifying LGA-to-BOS month results, August 2025 had the highest on-time rate: 81.9% of 568 flights. October 2025 was lowest at 59.5% across 674 flights.

MonthFlightsOn time30+ minCancelled
July 202559562.4%21.3%10.4%
August 202556881.9%12.3%1.4%
September 202563463.2%24.6%3.2%
October 202567459.5%24.9%4.2%
November 202560069.5%21.2%4.7%
December 202550465.1%21.4%5.6%
January 202654275.5%12.2%8.5%
February 202655271.2%13.4%8.7%
March 202661565.5%16.3%12.0%
April 202664275.5%16.2%0.5%
May 202666776.2%16.5%1.6%
June 202666273.3%16.0%4.5%

What drove LGA to BOS delay minutes?

National airspace was the largest recorded LGA-to-BOS delay category, accounting for 37.6% of 124,330 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.9%
Late aircraft33.6%
National airspace37.6%
Weather2.8%
Security0.1%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.