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

Boston, MA (BOS) to Newark, NJ (EWR) flight delay odds

71.7% of 3,906 official scheduled BOS-to-EWR flights arrived on time; 17.4% arrived at least 30 minutes late and 4.3% 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
71.7%arrived on time
17.4%30+ min late
4.3%cancelled
3,906scheduled 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 late4.2%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+10.9 mincompleted flights

Which departure time was most reliable for BOS to EWR?

Among qualifying BOS-to-EWR departure window results, Early morning had the highest on-time rate: 88.9% of 1,223 flights. Evening was lowest at 55.8% across 1,016 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,22388.9%5.1%2.5%
Late morning53381.8%10.7%3.6%
Afternoon1,08662.7%24.0%5.0%
Evening1,01655.8%28.2%6.4%
Night4860.4%25.0%2.1%

Which weekday was most reliable for BOS to EWR?

Among qualifying BOS-to-EWR weekday results, Tuesday had the highest on-time rate: 75.3% of 596 flights. Sunday was lowest at 67.1% across 547 flights.

DayFlightsOn time30+ minCancelled
Monday58870.6%16.3%7.5%
Tuesday59675.3%14.1%3.4%
Wednesday58074.0%15.7%3.1%
Thursday57668.2%20.0%4.5%
Friday57973.1%17.8%2.4%
Saturday44073.6%19.5%1.8%
Sunday54767.1%19.0%7.1%

Which airline was most reliable for BOS to EWR?

Among qualifying BOS-to-EWR airline results, United Airlines had the highest on-time rate: 72.8% of 2,719 flights. Republic Airways was lowest at 69.1% across 1,187 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines2,71972.8%17.3%3.5%
Republic Airways1,18769.1%17.5%6.3%

Which month was most reliable for BOS to EWR?

Among qualifying BOS-to-EWR month results, April 2026 had the highest on-time rate: 84.8% of 348 flights. July 2025 was lowest at 53.8% across 331 flights.

MonthFlightsOn time30+ minCancelled
July 202533153.8%27.8%10.6%
August 202533064.2%24.2%1.8%
September 202533668.8%19.0%3.0%
October 202533260.2%28.0%3.6%
November 202532770.6%15.6%10.1%
December 202527769.7%20.9%1.8%
January 202629776.4%9.8%7.4%
February 202630178.7%9.6%8.6%
March 202635276.4%16.2%2.3%
April 202634884.8%8.9%0.0%
May 202634880.7%9.2%0.6%
June 202632775.2%19.3%3.1%

What drove BOS to EWR delay minutes?

National airspace was the largest recorded BOS-to-EWR delay category, accounting for 46.2% of 74,352 BTS-attributed delay minutes during July 2025–June 2026.

Airline16.4%
Late aircraft35.8%
National airspace46.2%
Weather1.5%
Security0.0%
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.