Route
IAD → JAX
Washington Dulles International Airport Jacksonville International Airport
631 miles
Return route JAX → IAD →
How punctual is this route?
- On-time arrivals
- 82.5%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 760
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 43%
- Airline (crew, maintenance, cleaning) 25%
- Air traffic control & airport 20%
- Extreme weather 12%
- 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 | 91.1% | 57 |
| October 2025 | 90.3% | 62 |
| November 2025 | 84.7% | 59 |
| December 2025 | 80.4% | 51 |
| January 2026 | 89.6% | 51 |
| February 2026 | 89.8% | 49 |
| March 2026 | 83.0% | 94 |
| April 2026 | 86.8% | 68 |
| May 2026 | 84.5% | 84 |
| June 2026 | 69.6% | 69 |
| July 2026 | 73.5% | 71 |
| August 2026 | 66.7% | 45 |
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 |
|---|---|---|---|---|
| United Airlines | 643 | 83.8% | 0.8% | 84 min |
| Republic Airways | 59 | 87.9% | 1.7% | 30 min |
| Allegiant Air | 58 | 62.1% | 0.0% | 124 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
Reviews
No reviews yet. Be the first to review this route.