Route
IAD → EWR
Washington Dulles International Airport Newark Liberty International Airport
How punctual is this route?
- On-time arrivals
- 77.1%
- Less than 15 minutes late
- Cancelled
- 2.8%
- Of scheduled flights
- Average delay when late
- 102 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,560
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 47%
- Late-arriving aircraft 21%
- Airline (crew, maintenance, cleaning) 16%
- Extreme weather 15%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 71.3% | 122 |
| October 2025 | 72.6% | 124 |
| November 2025 | 67.0% | 117 |
| December 2025 | 75.2% | 125 |
| January 2026 | 82.8% | 124 |
| February 2026 | 85.6% | 112 |
| March 2026 | 76.2% | 124 |
| April 2026 | 89.2% | 120 |
| May 2026 | 89.4% | 135 |
| June 2026 | 78.9% | 150 |
| July 2026 | 67.4% | 155 |
| August 2026 | 72.3% | 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 | 1,530 | 77.1% | 2.6% | 103 min |
| Republic Airways | 30 | 77.8% | 10.0% | 71 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2669
4% late · 271 flights
-
UA1997
22% late · 265 flights
-
UA1831
43% late · 210 flights
-
UA2396
12% late · 173 flights
-
UA1498
30% late · 103 flights
-
UA1999
13% late · 58 flights
-
UA694
42% late · 55 flights
-
UA2147
9% late · 47 flights
-
UA368
72% late · 37 flights
-
UA2295
25% late · 36 flights
-
UA1230
26% late · 32 flights
-
UA2365
42% late · 31 flights
-
UA2605
13% late · 31 flights
-
UA2429
46% late · 24 flights
-
UA1021
9% late · 23 flights
-
UA1460
5% late · 21 flights
-
UA1998
0% late · 21 flights
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