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

Raleigh/Durham, NC (RDU) to Boston, MA (BOS) flight delay odds

76.8% of 2,815 official scheduled RDU-to-BOS flights arrived on time; 15.8% arrived at least 30 minutes late and 2.6% 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 SIGNALVariable
76.8%arrived on time
15.8%30+ min late
2.6%cancelled
2,815scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.4%all scheduled flights
120+ minutes late4.2%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+5.8 mincompleted flights

Which departure time was most reliable for RDU to BOS?

Among qualifying RDU-to-BOS departure window results, Early morning had the highest on-time rate: 89.1% of 682 flights. Evening was lowest at 66.7% across 631 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning68289.1%5.1%2.6%
Late morning71284.3%9.6%2.4%
Afternoon78967.3%25.5%2.3%
Evening63166.7%22.3%3.2%

Which weekday was most reliable for RDU to BOS?

Among qualifying RDU-to-BOS weekday results, Saturday had the highest on-time rate: 82.0% of 316 flights. Thursday was lowest at 73.9% across 425 flights.

DayFlightsOn time30+ minCancelled
Monday44375.6%16.7%4.5%
Tuesday38879.1%14.9%2.1%
Wednesday37679.0%13.3%0.5%
Thursday42573.9%20.2%2.6%
Friday43775.5%15.1%2.3%
Saturday31682.0%11.1%2.5%
Sunday43074.2%17.7%3.3%

Which airline was most reliable for RDU to BOS?

Among qualifying RDU-to-BOS airline results, Frontier Airlines had the highest on-time rate: 80.5% of 159 flights. JetBlue Airways was lowest at 74.2% across 1,083 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines1,43678.3%15.5%2.5%
JetBlue Airways1,08374.2%16.9%2.8%
Frontier Airlines15980.5%13.8%0.0%
Republic Airways13775.9%13.1%5.1%

Which month was most reliable for RDU to BOS?

Among qualifying RDU-to-BOS month results, August 2025 had the highest on-time rate: 84.8% of 230 flights. September 2025 was lowest at 65.6% across 256 flights.

MonthFlightsOn time30+ minCancelled
July 202523069.1%23.9%2.2%
August 202523084.8%10.9%0.9%
September 202525665.6%26.2%1.2%
October 202529170.1%22.7%2.4%
November 202524981.9%12.4%1.2%
December 202524975.1%18.5%1.6%
January 202617174.9%12.3%9.4%
February 202616777.2%8.4%7.8%
March 202622580.9%13.3%3.1%
April 202624582.4%10.6%0.4%
May 202626082.7%11.2%0.4%
June 202624277.7%14.5%4.5%

What drove RDU to BOS delay minutes?

Late aircraft was the largest recorded RDU-to-BOS delay category, accounting for 44.0% of 47,761 BTS-attributed delay minutes during July 2025–June 2026.

Airline18.9%
Late aircraft44.0%
National airspace36.4%
Weather0.6%
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.