Route
EWR → IAD
Newark Liberty International Airport Washington Dulles International Airport
How punctual is this route?
- On-time arrivals
- 74.8%
- Less than 15 minutes late
- Cancelled
- 2.9%
- Of scheduled flights
- Average delay when late
- 75 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,561
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 39%
- Air traffic control & airport 28%
- Airline (crew, maintenance, cleaning) 26%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 75.4% | 122 |
| October 2025 | 65.3% | 125 |
| November 2025 | 70.2% | 117 |
| December 2025 | 68.5% | 124 |
| January 2026 | 79.7% | 124 |
| February 2026 | 82.7% | 113 |
| March 2026 | 71.9% | 123 |
| April 2026 | 81.7% | 120 |
| May 2026 | 86.5% | 135 |
| June 2026 | 81.8% | 150 |
| July 2026 | 66.9% | 156 |
| August 2026 | 68.7% | 152 |
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 | 1,532 | 74.8% | 2.8% | 76 min |
| Republic Airways | 29 | 76.9% | 10.3% | 46 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1366
4% late · 350 flights
-
UA1992
33% late · 316 flights
-
UA1784
24% late · 238 flights
-
UA2677
38% late · 168 flights
-
UA2212
32% late · 73 flights
-
UA1950
36% late · 52 flights
-
UA1691
28% late · 47 flights
-
UA1413
14% late · 35 flights
-
UA1703
42% late · 31 flights
-
UA2027
29% late · 31 flights
-
UA1809
42% late · 24 flights
-
UA1820
35% late · 23 flights
-
UA1057
35% late · 21 flights
-
UA1618
19% late · 21 flights
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