Historical on-time performance
Washington to Burlington
442 miData through Dec 2025Source: US DOT · BTS
Flights on IAD–BTV arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled3.1%of scheduled flights
based on 621 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time80%Medianon timep9030 minCancel3.1%Flights621
Why flights run late
Delay causes
- Airline28%
- Weather22%
- Air traffic (NAS)19%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 68% to 89% on time.
- Mornings89% on time · p90 10 min · 548 flights
- Middays87% on time · p90 15 min · 460 flights
- Overnights79% on time · p90 45 min · 323 flights
- Evenings72% on time · p90 50 min · 239 flights
- Afternoons68% on time · p90 55 min · 73 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 80% to 87% on time.
- Mondays87% on time · p90 15 min · 254 flights
- Tuesdays86% on time · p90 20 min · 237 flights
- Sundays84% on time · p90 25 min · 215 flights
- Thursdays84% on time · p90 25 min · 262 flights
- Wednesdays81% on time · p90 35 min · 228 flights
- Fridays81% on time · p90 45 min · 247 flights
- Saturdays80% on time · p90 35 min · 200 flights
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