Route
IAD → CMH
Washington Dulles International Airport John Glenn Columbus International Airport
How punctual is this route?
- On-time arrivals
- 82.1%
- Less than 15 minutes late
- Cancelled
- 1.2%
- Of scheduled flights
- Average delay when late
- 78 min
- Flights arriving 15+ minutes late
- Flights tracked
- 936
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 41%
- Airline (crew, maintenance, cleaning) 38%
- Air traffic control & airport 17%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.4% | 136 |
| October 2025 | 85.6% | 97 |
| November 2025 | 93.1% | 60 |
| December 2025 | 84.0% | 75 |
| January 2026 | 85.3% | 80 |
| February 2026 | 77.5% | 104 |
| March 2026 | 72.4% | 117 |
| April 2026 | 96.5% | 85 |
| May 2026 | 82.4% | 68 |
| June 2026 | 77.8% | 45 |
| July 2026 | 75.0% | 4 |
| August 2026 | 69.8% | 65 |
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 | 527 | 81.4% | 1.9% | 82 min |
| United Airlines | 409 | 83.0% | 0.2% | 73 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
YX3646
18% late · 279 flights
-
YX3566
19% late · 78 flights
-
UA1102
29% late · 53 flights
-
UA1548
8% late · 52 flights
-
UA2691
11% late · 47 flights
-
UA773
10% late · 41 flights
-
YX3516
18% late · 38 flights
-
YX3406
3% late · 31 flights
-
UA2344
7% late · 28 flights
-
UA1252
12% late · 24 flights
-
YX3507
29% late · 24 flights
-
UA1939
13% late · 23 flights
-
YX3495
45% late · 22 flights
-
UA1159
62% late · 21 flights
-
UA1219
20% late · 21 flights
-
UA204
0% late · 21 flights
-
YX3571
14% late · 21 flights
Reviews
No reviews yet. Be the first to review this route.