Washington (IAD) to New York (LGA): On-Time Performance
Data through July 2026
Delays are only half the story on IAD–LGA: 5.3% 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, 73% land on time, below the national average of 78%.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 5.3%
- Flights/day
- 2.7
- last 12 months
- Duration
- 1h 27m
- scheduled
- Distance
- 228 mi
Monthly on-time trend
Best time to fly from IAD to LGA
Aim for departures around 8 a.m. (83% on-time); avoid 12 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 72% | 18 min |
| Tuesday | 73% | 16 min |
| Wednesday | 70% | 19 min |
| Thursday | 70% | 23 min |
| Friday | 67% | 25 min |
| Saturdaybest | 86% | 13 min |
| Sunday | 74% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft24%
- Airline operations17%
- National airspace system53%
- Weather6%
Frequently asked questions
- How often are flights from IAD to LGA delayed?
- 27% of IAD–LGA 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 IAD to LGA?
- Departures around 8 a.m. have the best record (83% on-time), while departures around 12 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from IAD to LGA?
- The scheduled IAD–LGA flight time averages 1h 27m over 228 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are IAD to LGA flights cancelled?
- 5.3% 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 IAD to LGA?
- June 2025 was the roughest month in this dataset, with only 56% of arrivals on time. The best was January 2026 at 87%. If your dates are flexible, that 31-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.