Route
JFK → IAD
John F. Kennedy International Airport Washington Dulles International Airport
228 miles
Return route IAD → JFK →
How punctual is this route?
- On-time arrivals
- 83.9%
- Less than 15 minutes late
- Cancelled
- 1.7%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 177
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 49%
- Air traffic control & airport 40%
- Late-arriving aircraft 11%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Mar 2026
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| March 2026 | 75.0% | 24 |
| April 2026 | 100.0% | 30 |
| May 2026 | 86.7% | 31 |
| June 2026 | 86.7% | 30 |
| July 2026 | 83.3% | 31 |
| August 2026 | 70.0% | 31 |
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 | 177 | 83.9% | 1.7% | 79 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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