NK1597 BWI → BOS

Spirit Airlines · Baltimore, MD to Boston, MA · 35 flights observed, 2025-07-09 to 2025-08-12 · 369 mi

This flight's reliability varies a lot by day of week — 100% on-time on Sundays vs. 40% on Tuesdays.
On-time arrival
74%
Median delay
-1 min
90th percentile
+44 min
Cancellation rate
3%

How often is NK1597 on time?

Across 35 flights on BWI → BOS from 2025-07-09 to 2025-08-12, NK1597 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +44 min or later. 3% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time2574%
16-30 min26%
31-60 min412%
61-120 min26%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072374%+12 min
2025-081173%+3 min

Performance by day of week

DayFlightsOn-time
Mon580%
Tue540%
Wed560%
Thu580%
Fri475%
Sat580%
Sun5100%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…