Spirit Airlines DTW to BOS on-time performance
Spirit Airlines nonstop flights from Detroit to Boston · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
15 min
63 min when late
Rank on route
#1 of 4
route average 74% on time
Key facts
- Spirit Airlines flights on DTW to BOS arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 11% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (65%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion65%
- Late-arriving aircraft31%
- Airline (crew, maintenance, cleaning, fueling)4%
- Extreme weather0%
- Security0%
Other airlines on DTW to BOS
- Delta Air Lines75% on time · 18 min avg delay
- JetBlue73% on time · 24 min avg delay
- Republic Airways0% on time · 20 min avg delay
Full DTW to BOS comparison →
Spirit Airlines on-time record across all routes →
133 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.