Spirit Airlines DTW to SJU on-time performance
Spirit Airlines nonstop flights from Detroit to San Juan · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
13 min
52 min when late
Rank on route
#1 of 2
route average 76% on time
Key facts
- Spirit Airlines flights on DTW to SJU arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (78%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion78%
- Late-arriving aircraft15%
- Airline (crew, maintenance, cleaning, fueling)7%
- Extreme weather0%
- Security0%
Other airlines on DTW to SJU
- Delta Air Lines76% on time · 13 min avg delay
Full DTW to SJU comparison →
Spirit Airlines on-time record across all routes →
34 Spirit Airlines flights tracked on this route; 0 cancelled, 0 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.