NK891 Flight Status Spirit Airlines: San Juan to Boston (NKS891)
NK 891 San Juan to Boston Flight Status
Not scheduled today. Latest flight: April 28th, 2026 ; recent history is in the table below.
NK 891 Flight Status & Schedule Spirit Airlines San Juan to Boston
| Date | From | To | Departure | Arrival | Status | Details |
|---|---|---|---|---|---|---|
| Apr 28 | SJU | BOS | 10:37 | 14:24 | Landed | Track > |
| Apr 27 | SJU | BOS | 10:49 | 15:04 | Landed Late | Track > |
| Apr 26 | SJU | BOS | 10:42 | 14:23 | Landed | Track > |
| Apr 25 | SJU | BOS | 10:21 | 14:18 | Landed | Track > |
| Apr 24 | SJU | BOS | 10:26 | 14:15 | Landed | Track > |
| Apr 23 | SJU | BOS | 10:53 | 14:49 | Landed Late | Track > |
| Apr 22 | SJU | BOS | 10:29 | 14:21 | Landed | Track > |
| Apr 21 | SJU | BOS | 10:47 | 15:25 | Delayed | Track > |
| Apr 20 | SJU | BOS | 10:33 | 14:12 | Landed | Track > |
| Apr 19 | SJU | BOS | 10:27 | 14:11 | Landed | Track > |
Spirit Airlines flight NK 891 links San Juan and Boston, 2,702 km (1,679 mi) apart. With 4 h 7 min in the timetable and a usual flight time of about 3 h 50 min, it often makes up time. It is not flying today; the last flight, on 28 April 2026, landed on time.
About NK 891
Spirit Airlines Flight NK891 connects San Juan, Puerto Rico to Boston, United States, taking off from San Juan Luis Munoz Marin International Airport SJU and landing at Boston Logan International Airport BOS.
- Distance
- 2,702 km (1,679 mi)
- Typical flight time
- 3 h 50 min
- On time
- 7 of the last 9
- Average delay when late
- 25 min
- Usually departs from
- Terminal B
NK 891 FAQ
- How long is the NK891 flight from San Juan to Boston?
- The timetable allows 4 h 7 min. San Juan to Boston is 2,702 km (1,679 mi).
- How often is NK891 from San Juan to Boston late?
- 2 of the last 9 flights arrived 15 or more minutes late; when late, by 25 minutes on average.
- When was the latest NK891 flight from San Juan to Boston?
- The latest NK891 was the 10:25 (local time) departure from San Juan on 28 April 2026; it landed 8 minutes early.
- Which terminal does NK891 use?
- It usually leaves from Terminal B at San Juan Luis Munoz Marin International Airport (SJU) and arrives at Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.
- What other flight numbers does NK891 have?
- Also listed as NKS891 (Spirit Airlines' ICAO code) and NK 891.
NK891 and San Juan SJU to Boston BOS Flights
Other flights departing from San Juan SJU: B61234, B6518, NK2208, B6554
Other flights arriving at Boston BOS: DL1596, AA1709, UA1756, UA1354
All flights connecting San Juan SJU to Boston BOS.