Historical on-time performance
New York to Washington
229 miData through Dec 2025Source: US DOT · BTS
Flights on LGA–IAD arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled6.3%of scheduled flights
based on 694 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time68%Medianon timep9075 minCancel6.3%Flights694
Why flights run late
Delay causes
- Airline16%
- Weather2%
- Air traffic (NAS)26%
- Late aircraft55%
- 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 LGA → 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 — 90% on time.
- Mornings90% on time · p90 5 min · 683 flights
- Middays86% on time · p90 25 min · 542 flights
- Evenings71% on time · p90 65 min · 576 flights
- Afternoons69% on time · p90 65 min · 770 flights
- Overnights69% on time · p90 80 min · 77 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 83% on time.
- Saturdays83% on time · p90 35 min · 337 flights
- Tuesdays82% on time · p90 20 min · 393 flights
- Sundays78% on time · p90 40 min · 372 flights
- Thursdays78% on time · p90 40 min · 375 flights
- Wednesdays78% on time · p90 55 min · 389 flights
- Mondays76% on time · p90 45 min · 389 flights
- Fridays72% on time · p90 60 min · 393 flights
Advertisement
Keep exploring