Route Reliability
Detroit → Washington
DTW–IAD · 383 miles · Detroit Metropolitan Wayne County Airport to Washington Dulles International Airport
- 77%
- Arrive within 15 minutes
- 15 min
- Average arrival delay
- 1.3%
- Cancelled
- 2,198
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines83%1,002 flights
- 2.Delta Air Lines73%1,196 flights
What the data says
Morning flights do better here.
DTW–IAD flights departing between 6–9 AM arrived on time 89% of the time, versus 67% between 9 PM–12 AM.
Monday is the weak spot.
DTW–IAD flights arrived on time 80% of the time on Thursdays. On Mondays: 72%.
United Airlines runs this route best.
United Airlines arrived on time 83% of the time on this route; Delta Air Lines managed 73%.
Trending in the right direction.
DTW–IAD flights arrived on time 80% of the time over the last three months in the data, compared with 64% 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%(316 flights)
- Tue80%(309 flights)
- Wed79%(290 flights)
- Thu80%(311 flights)
- Fri78%(317 flights)
- Sat79%(304 flights)
- Sun74%(317 flights)
- 3–6 AM88%(84 flights)
- 6–9 AM89%(331 flights)
- 9 AM–12 PM80%(324 flights)
- 12–3 PM76%(527 flights)
- 3–6 PM68%(193 flights)
- 6–9 PM79%(352 flights)
- 9 PM–12 AM67%(353 flights)
Jun 76% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 198 |
| July 2025 | 69% | 201 |
| August 2025 | 81% | 203 |
| September 2025 | 92% | 192 |
| October 2025 | 88% | 200 |
| November 2025 | 82% | 173 |
| December 2025 | 65% | 179 |
| January 2026 | 56% | 149 |
| February 2026 | 72% | 139 |
| March 2026 | 68% | 170 |
| April 2026 | 89% | 168 |
| May 2026 | 84% | 192 |
Same trip, other airports
Keep nerding
Based on 2,198 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.