New York (LGA) to Washington (IAD): On-Time Performance
Data through July 2026
Delays are only half the story on LGA–IAD: 5.2% of its scheduled flights were outright cancelled, well above the US norm, so a backup plan matters more here than on most routes. When flights do go, 77% land on time, below the national average of 78%.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 5.2%
- Flights/day
- 2.7
- last 12 months
- Duration
- 1h 29m
- scheduled
- Distance
- 228 mi
Monthly on-time trend
Best time to fly from LGA to IAD
Aim for departures around 6 a.m. (93% on-time); avoid 2 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 19 min |
| Tuesday | 81% | 13 min |
| Wednesday | 76% | 22 min |
| Thursday | 75% | 18 min |
| Friday | 73% | 24 min |
| Saturdaybest | 83% | 12 min |
| Sunday | 77% | 22 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft53%
- Airline operations16%
- National airspace system27%
- Weather4%
Frequently asked questions
- How often are flights from LGA to IAD delayed?
- 23% of LGA–IAD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 19 minutes.
- What is the best time of day to fly from LGA to IAD?
- Departures around 6 a.m. have the best record (93% on-time), while departures around 2 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from LGA to IAD?
- The scheduled LGA–IAD flight time averages 1h 29m over 228 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are LGA to IAD flights cancelled?
- 5.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from LGA to IAD?
- July 2025 was the roughest month in this dataset, with only 46% of arrivals on time. The best was April 2026 at 90%. If your dates are flexible, that 44-point gap is worth planning around.
Explore related pages
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Related guides
Based on 1,962 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.