Historical on-time performance
New York to Washington
228 miData through Dec 2025Source: US DOT · BTS
Flights on JFK–IAD arrive on time 83% of the time over the last 12 months.
On-time rate83%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 30 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time83%Medianon timep9015 minCancel0.0%Flights30
Why flights run late
Delay causes
- Airline75%
- Weather12%
- Air traffic (NAS)13%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly JFK → IAD
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 59% to 87% on time.
- Mornings87% on time · p90 15 min · 341 flights
- Middays84% on time · p90 30 min · 507 flights
- Evenings76% on time · p90 35 min · 68 flights · limited
- Afternoons73% on time · p90 85 min · 731 flights
- Overnights59% on time · p90 95 min · 156 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 83% on time.
- Thursdays83% on time · p90 55 min · 255 flights
- Wednesdays82% on time · p90 35 min · 256 flights
- Tuesdays80% on time · p90 30 min · 259 flights
- Sundays79% on time · p90 55 min · 261 flights
- Mondays79% on time · p90 35 min · 259 flights
- Saturdays72% on time · p90 75 min · 257 flights
- Fridays68% on time · p90 70 min · 256 flights
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