Route Reliability
Washington → Newark
IAD–EWR · 212 miles · Washington Dulles International Airport to Newark Liberty International Airport
- 73%
- Arrive within 15 minutes
- 20 min
- Average arrival delay
- 2.5%
- Cancelled
- 1,824
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 73% of the time across 1,824 flights. No comparison to make.
What the data says
Morning-you made the right choice.
IAD–EWR flights departing between 6–9 AM arrived on time 86% of the time, versus 51% between 3–6 PM.
Sunday scaries are real for this one.
IAD–EWR flights arrived on time 78% of the time on Tuesdays. On Sundays: 70%.
Ticking up lately.
IAD–EWR flights arrived on time 84% of the time over the last three months in the data, compared with 79% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon72%(249 flights)
- Tue78%(253 flights)
- Wed75%(255 flights)
- Thu71%(254 flights)
- Fri75%(257 flights)
- Sat72%(256 flights)
- Sun70%(253 flights)
- 6–9 AM86%(666 flights)
- 9 AM–12 PM64%(25 flights)
- 12–3 PM70%(352 flights)
- 3–6 PM51%(375 flights)
- 6–9 PM—(3 flights)
- 9 PM–12 AM76%(356 flights)
Jun 56% → May 89% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 56% | 149 |
| July 2025 | 58% | 142 |
| August 2025 | 61% | 154 |
| September 2025 | 74% | 151 |
| October 2025 | 70% | 154 |
| November 2025 | 69% | 143 |
| December 2025 | 73% | 155 |
| January 2026 | 78% | 145 |
| February 2026 | 86% | 129 |
| March 2026 | 76% | 153 |
| April 2026 | 87% | 150 |
| May 2026 | 89% | 152 |
Same trip, other airports
Keep nerding
Based on 1,824 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.