Historical on-time performance
Washington to New Orleans
955 miData through Dec 2025Source: US DOT · BTS
Flights on IAD–MSY arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 637 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- United AirlinesOn-time80%Medianon timep9045 minCancel1.1%Flights637
Why flights run late
Delay causes
- Airline23%
- Weather9%
- Air traffic (NAS)22%
- Late aircraft47%
- 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 → MSY
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 10 min · 845 flights
- Evenings75% on time · p90 55 min · 1,085 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 84% on time.
- Mondays84% on time · p90 25 min · 292 flights
- Thursdays83% on time · p90 20 min · 284 flights
- Saturdays83% on time · p90 25 min · 252 flights
- Fridays80% on time · p90 45 min · 283 flights
- Tuesdays80% on time · p90 30 min · 281 flights
- Wednesdays80% on time · p90 45 min · 281 flights
- Sundays75% on time · p90 70 min · 261 flights
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