Historical on-time performance
Washington to Morgantown
140 miData through May 2026Source: US DOT · BTS
Flights on IAD–MGW arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay105 min1 in 10 flights is worse (tail risk)
Cancelled4.6%of scheduled flights
based on 305 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time71%Medianon timep90105 minCancel4.6%Flights305
Why flights run late
Delay causes
- Airline28%
- Weather7%
- Air traffic (NAS)2%
- Late aircraft63%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather71%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 14 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 → MGW
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 76% on time.
- Mornings76% on time · p90 100 min · 351 flights
- Overnights67% on time · p90 115 min · 180 flights · limited
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