Route Reliability
Washington → Detroit
IAD–DTW · 383 miles · Washington Dulles International Airport to Detroit Metropolitan Wayne County Airport
- 79%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 1.6%
- Cancelled
- 2,201
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines80%1,005 flights
- 2.Delta Air Lines78%1,196 flights
What the data says
The late departure is the smart one here.
IAD–DTW flights departing between 6–9 PM arrived on time 96% of the time, versus 70% between 3–6 PM.
Sunday scaries are real for this one.
IAD–DTW flights arrived on time 85% of the time on Thursdays. On Sundays: 75%.
Not much between United Airlines and Delta Air Lines.
On this route they all land within 78% to 80% on time. Pick on schedule and price.
Trending in the right direction.
IAD–DTW flights arrived on time 83% of the time over the last three months in the data, compared with 70% 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
- Mon78%(309 flights)
- Tue78%(293 flights)
- Wed76%(304 flights)
- Thu85%(316 flights)
- Fri79%(318 flights)
- Sat79%(306 flights)
- Sun75%(317 flights)
- 6–9 AM86%(709 flights)
- 9 AM–12 PM86%(196 flights)
- 12–3 PM79%(283 flights)
- 3–6 PM70%(684 flights)
- 6–9 PM96%(24 flights)
- 9 PM–12 AM76%(267 flights)
Jun 68% → May 89% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 68% | 201 |
| July 2025 | 67% | 198 |
| August 2025 | 85% | 204 |
| September 2025 | 93% | 191 |
| October 2025 | 89% | 201 |
| November 2025 | 80% | 174 |
| December 2025 | 63% | 177 |
| January 2026 | 72% | 149 |
| February 2026 | 76% | 140 |
| March 2026 | 72% | 169 |
| April 2026 | 86% | 169 |
| May 2026 | 89% | 190 |
Same trip, other airports
Keep nerding
Based on 2,201 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.