Route
LGA → IAD
LaGuardia Airport Washington Dulles International Airport
228 miles
Return route IAD → LGA →
How punctual is this route?
- On-time arrivals
- 76.1%
- Less than 15 minutes late
- Cancelled
- 7.1%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 912
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Air traffic control & airport 29%
- Airline (crew, maintenance, cleaning) 14%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 76.6% | 111 |
| October 2025 | 76.8% | 100 |
| November 2025 | 74.3% | 87 |
| December 2025 | 65.7% | 107 |
| January 2026 | 82.7% | 80 |
| February 2026 | 83.6% | 73 |
| March 2026 | 69.5% | 96 |
| April 2026 | 90.0% | 20 |
| May 2026 | 78.5% | 96 |
| June 2026 | 75.4% | 60 |
| July 2026 | 81.1% | 62 |
| August 2026 | 68.8% | 20 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Republic Airways | 912 | 76.1% | 7.1% | 87 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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