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

New York, NY (JFK) to Portland, ME (PWM) flight delay odds

70.1% of 405 official scheduled JFK-to-PWM flights arrived on time; 18.0% arrived at least 30 minutes late and 5.4% 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
70.1%arrived on time
18.0%30+ min late
5.4%cancelled
405scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late12.6%all scheduled flights
120+ minutes late5.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+9.2 mincompleted flights

Which departure time was most reliable for JFK to PWM?

Among qualifying JFK-to-PWM departure window results, Afternoon had the highest on-time rate: 81.3% of 203 flights. Night was lowest at 56.1% across 171 flights.

Departure windowFlightsOn time30+ minCancelled
Afternoon20381.3%11.8%3.9%
Night17156.1%26.3%8.2%

Which weekday was most reliable for JFK to PWM?

Among qualifying JFK-to-PWM weekday results, Friday had the highest on-time rate: 76.7% of 60 flights. Sunday was lowest at 60.0% across 60 flights.

DayFlightsOn time30+ minCancelled
Monday5869.0%13.8%6.9%
Tuesday5576.4%12.7%5.5%
Wednesday5673.2%17.9%8.9%
Thursday6167.2%16.4%4.9%
Friday6076.7%18.3%0.0%
Saturday5569.1%25.5%3.6%
Sunday6060.0%21.7%8.3%

Which airline was most reliable for JFK to PWM?

Among qualifying JFK-to-PWM airline results, Republic Airways had the highest on-time rate: 83.9% of 62 flights. JetBlue Airways was lowest at 67.6% across 343 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways34367.6%20.1%4.7%
Republic Airways6283.9%6.5%9.7%

Which month was most reliable for JFK to PWM?

Among qualifying JFK-to-PWM month results, February 2026 had the highest on-time rate: 82.1% of 28 flights. July 2025 was lowest at 36.1% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20256136.1%37.7%19.7%
August 20256269.4%22.6%3.2%
September 20254879.2%10.4%0.0%
October 20254577.8%11.1%0.0%
January 20262781.5%7.4%11.1%
February 20262882.1%7.1%10.7%
April 20263080.0%13.3%0.0%
May 20264075.0%12.5%2.5%
June 20265472.2%22.2%1.9%

What drove JFK to PWM delay minutes?

Late aircraft was the largest recorded JFK-to-PWM delay category, accounting for 55.4% of 7,731 BTS-attributed delay minutes during July 2025–June 2026.

Airline38.0%
Late aircraft55.4%
National airspace6.1%
Weather0.4%
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.