Route
ORD → IAD
Chicago O'Hare International Airport Washington Dulles International Airport
How punctual is this route?
- On-time arrivals
- 75.9%
- Less than 15 minutes late
- Cancelled
- 0.8%
- Of scheduled flights
- Average delay when late
- 83 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,103
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 24%
- Extreme weather 10%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.1% | 201 |
| October 2025 | 74.6% | 177 |
| November 2025 | 70.9% | 151 |
| December 2025 | 69.7% | 145 |
| January 2026 | 75.2% | 129 |
| February 2026 | 79.5% | 112 |
| March 2026 | 66.2% | 148 |
| April 2026 | 76.8% | 181 |
| May 2026 | 78.7% | 216 |
| June 2026 | 83.3% | 210 |
| July 2026 | 78.2% | 216 |
| August 2026 | 70.6% | 217 |
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 | 2,103 | 75.9% | 0.8% | 83 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA587
30% late · 231 flights
-
UA2277
8% late · 156 flights
-
UA293
29% late · 144 flights
-
UA1357
19% late · 135 flights
-
UA2437
30% late · 135 flights
-
UA2677
38% late · 127 flights
-
UA2202
46% late · 124 flights
-
UA1869
12% late · 83 flights
-
UA1689
0% late · 81 flights
-
UA1023
28% late · 55 flights
-
UA1030
11% late · 55 flights
-
UA2029
7% late · 55 flights
-
UA2794
26% late · 47 flights
-
UA2766
35% late · 46 flights
-
UA2746
42% late · 37 flights
-
UA426
36% late · 36 flights
-
UA1015
23% late · 35 flights
-
UA1892
25% late · 32 flights
-
UA2223
34% late · 32 flights
-
UA1379
13% late · 31 flights
-
UA2337
16% late · 31 flights
-
UA213
35% late · 26 flights
-
UA1332
12% late · 24 flights
-
UA1377
8% late · 24 flights
Reviews
No reviews yet. Be the first to review this route.