Route
IAD → JFK
Washington Dulles International Airport John F. Kennedy International Airport
228 miles
Return route JFK → IAD →
How punctual is this route?
- On-time arrivals
- 50.6%
- Less than 15 minutes late
- Cancelled
- 5.1%
- Of scheduled flights
- Average delay when late
- 65 min
- Flights arriving 15+ minutes late
- Flights tracked
- 177
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 53%
- Airline (crew, maintenance, cleaning) 25%
- Extreme weather 11%
- Late-arriving aircraft 11%
- 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 | 60.9% | 24 |
| April 2026 | 76.7% | 30 |
| May 2026 | 60.0% | 31 |
| June 2026 | 40.0% | 30 |
| July 2026 | 46.2% | 31 |
| August 2026 | 20.7% | 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 | 50.6% | 5.1% | 65 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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