Route
BTV → IAD
Patrick Leahy Burlington International Airport Washington Dulles International Airport
441 miles
Return route IAD → BTV →
How punctual is this route?
- On-time arrivals
- 88.5%
- Less than 15 minutes late
- Cancelled
- 1.6%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 309
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 50%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 22%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 93.9% | 33 |
| October 2025 | 80.0% | 40 |
| November 2025 | 0.0% | 1 |
| February 2026 | 83.9% | 32 |
| March 2026 | 84.4% | 33 |
| April 2026 | 66.7% | 3 |
| May 2026 | 96.6% | 29 |
| June 2026 | 100.0% | 26 |
| July 2026 | 90.9% | 45 |
| August 2026 | 87.7% | 67 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Republic Airways | 238 | 89.3% | 1.7% | 73 min |
| United Airlines | 71 | 85.7% | 1.4% | 47 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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