Route
DTW → SJU
Detroit Metropolitan Wayne County Airport Luis Munoz Marin International Airport
1,930 miles
Return route SJU → DTW →
How punctual is this route?
- On-time arrivals
- 75.5%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 332
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 46%
- Airline (crew, maintenance, cleaning) 44%
- Late-arriving aircraft 6%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 76.2% | 21 |
| October 2025 | 92.3% | 13 |
| November 2025 | 68.0% | 26 |
| December 2025 | 62.8% | 43 |
| January 2026 | 55.9% | 36 |
| February 2026 | 78.6% | 28 |
| March 2026 | 76.7% | 31 |
| April 2026 | 82.8% | 30 |
| May 2026 | 83.9% | 31 |
| June 2026 | 76.7% | 30 |
| July 2026 | 87.1% | 31 |
| August 2026 | 91.7% | 12 |
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 |
|---|---|---|---|---|
| Delta Air Lines | 321 | 75.6% | 0.9% | 54 min |
| NK | 11 | 72.7% | 0.0% | 34 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
DL1913
24% late · 304 flights
Reviews
No reviews yet. Be the first to review this route.