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

Washington, DC (IAD) to Burlington, VT (BTV) flight delay odds

81.8% of 550 official scheduled IAD-to-BTV flights arrived on time; 9.5% arrived at least 30 minutes late and 2.9% 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
81.8%arrived on time
9.5%30+ min late
2.9%cancelled
550scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.9%all scheduled flights
120+ minutes late2.4%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+5.3 mincompleted flights

Which departure time was most reliable for IAD to BTV?

Among qualifying IAD-to-BTV departure window results, Early morning had the highest on-time rate: 89.6% of 317 flights. Evening was lowest at 68.5% across 73 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning31789.6%4.7%0.9%
Evening7368.5%16.4%6.8%
Night13168.7%16.8%6.1%

Which weekday was most reliable for IAD to BTV?

Among qualifying IAD-to-BTV weekday results, Sunday had the highest on-time rate: 89.0% of 73 flights. Saturday was lowest at 77.8% across 63 flights.

DayFlightsOn time30+ minCancelled
Monday9186.8%2.2%5.5%
Tuesday7479.7%10.8%2.7%
Wednesday6880.9%8.8%5.9%
Thursday9180.2%13.2%1.1%
Friday9077.8%11.1%1.1%
Saturday6377.8%12.7%1.6%
Sunday7389.0%8.2%2.7%

Which airline was most reliable for IAD to BTV?

Among qualifying IAD-to-BTV airline results, Republic Airways had the highest on-time rate: 84.3% of 470 flights. United Airlines was lowest at 67.5% across 80 flights.

AirlineFlightsOn time30+ minCancelled
Republic Airways47084.3%8.3%3.2%
United Airlines8067.5%16.2%1.2%

Which month was most reliable for IAD to BTV?

Among qualifying IAD-to-BTV month results, November 2025 had the highest on-time rate: 95.8% of 24 flights. July 2025 was lowest at 72.9% across 96 flights.

MonthFlightsOn time30+ minCancelled
July 20259672.9%12.5%11.5%
August 20257283.3%11.1%1.4%
September 20253284.4%12.5%0.0%
October 20254588.9%6.7%0.0%
November 20252495.8%4.2%0.0%
December 20253174.2%6.5%0.0%
January 20263177.4%9.7%6.5%
February 20265976.3%8.5%1.7%
March 20265375.5%13.2%1.9%
April 20263494.1%5.9%0.0%
May 20264791.5%6.4%0.0%
June 20262688.5%7.7%0.0%

What drove IAD to BTV delay minutes?

Airline was the largest recorded IAD-to-BTV delay category, accounting for 33.8% of 7,442 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.8%
Late aircraft32.6%
National airspace17.1%
Weather16.5%
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.