Historical on-time performance
Washington to Burlington
Flights on IAD–BTV arrive on time 77% of the time over the last 12 months.
based on 472 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Republic AirwaysOn-time78%Medianon timep9035 minCancel4.1%Flights441
- United AirlinesOn-time61%Median5 minp9085 minCancel3.2%Flights31
Why flights run late
Delay causes
- Airline29%
- Weather19%
- Air traffic (NAS)19%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline11%
- Weather42%
- Air traffic (NAS)47%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 19 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly IAD → BTV
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 73% to 90% on time.
- Mornings90% on time · p90 10 min · 685 flights
- Middays88% on time · p90 15 min · 363 flights
- Overnights76% on time · p90 50 min · 363 flights
- Evenings73% on time · p90 45 min · 187 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 86% on time.
- Tuesdays86% on time · p90 20 min · 237 flights
- Mondays86% on time · p90 15 min · 257 flights
- Sundays86% on time · p90 20 min · 221 flights
- Wednesdays83% on time · p90 25 min · 231 flights
- Thursdays82% on time · p90 30 min · 268 flights
- Fridays81% on time · p90 40 min · 252 flights
- Saturdays80% on time · p90 30 min · 205 flights
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