Historical on-time performance
Nashville to Washington
542 miData through Dec 2025Source: US DOT · BTS
Flights on BNA–IAD arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 936 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time77%Medianon timep9045 minCancel0.4%Flights936
Why flights run late
Delay causes
- Airline31%
- Weather6%
- Air traffic (NAS)19%
- Late aircraft44%
- 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 BNA → IAD
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 15 min · 682 flights
- Middays79% on time · p90 40 min · 1,279 flights
- Evenings78% on time · p90 50 min · 1,078 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.
- Wednesdays85% on time · p90 20 min · 409 flights
- Tuesdays84% on time · p90 20 min · 416 flights
- Saturdays81% on time · p90 40 min · 435 flights
- Fridays81% on time · p90 50 min · 413 flights
- Mondays80% on time · p90 30 min · 402 flights
- Thursdays79% on time · p90 40 min · 498 flights
- Sundays75% on time · p90 60 min · 488 flights
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