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

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

76.8% of 406 official scheduled PWM-to-JFK flights arrived on time; 13.3% 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
76.8%arrived on time
13.3%30+ min late
5.4%cancelled
406scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.9%all scheduled flights
120+ minutes late4.2%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+4.9 mincompleted flights

Which departure time was most reliable for PWM to JFK?

Among qualifying PWM-to-JFK departure window results, Early morning had the highest on-time rate: 87.0% of 193 flights. Afternoon was lowest at 67.6% across 213 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning19387.0%4.7%4.1%
Afternoon21367.6%21.1%6.6%

Which weekday was most reliable for PWM to JFK?

Among qualifying PWM-to-JFK weekday results, Friday had the highest on-time rate: 85.2% of 61 flights. Sunday was lowest at 71.4% across 56 flights.

DayFlightsOn time30+ minCancelled
Monday6172.1%19.7%4.9%
Tuesday5976.3%10.2%5.1%
Wednesday5475.9%14.8%7.4%
Thursday5771.9%17.5%7.0%
Friday6185.2%6.6%1.6%
Saturday5884.5%12.1%1.7%
Sunday5671.4%12.5%10.7%

Which airline was most reliable for PWM to JFK?

Among qualifying PWM-to-JFK airline results, JetBlue Airways had the highest on-time rate: 77.6% of 344 flights. Republic Airways was lowest at 72.6% across 62 flights.

AirlineFlightsOn time30+ minCancelled
JetBlue Airways34477.6%13.4%4.7%
Republic Airways6272.6%12.9%9.7%

Which month was most reliable for PWM to JFK?

Among qualifying PWM-to-JFK month results, September 2025 had the highest on-time rate: 89.8% of 49 flights. July 2025 was lowest at 57.4% across 61 flights.

MonthFlightsOn time30+ minCancelled
July 20256157.4%19.7%19.7%
August 20256272.6%17.7%3.2%
September 20254989.8%8.2%0.0%
October 20254586.7%11.1%2.2%
January 20262766.7%14.8%14.8%
February 20262871.4%14.3%7.1%
April 20263080.0%6.7%0.0%
May 20264087.5%7.5%2.5%
June 20265578.2%16.4%0.0%

What drove PWM to JFK delay minutes?

National airspace was the largest recorded PWM-to-JFK delay category, accounting for 47.8% of 6,162 BTS-attributed delay minutes during July 2025–June 2026.

Airline24.8%
Late aircraft25.2%
National airspace47.8%
Weather2.1%
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.