| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 07 | FLL | BOS | 07:50 | 10:29 |
Landed
|
Track > |
| Jan 06 | FLL | BOS | 09:10 | 11:50 |
Delayed
|
Track > |
| Jan 05 | FLL | BOS | 08:09 | 10:59 |
Landed
|
Track > |
| Jan 04 | FLL | BOS | 08:15 | 11:00 |
Landed
|
Track > |
| Jan 03 | FLL | BOS | 07:52 | 10:32 |
Landed
|
Track > |
| Jan 02 | FLL | BOS | 08:36 | 11:30 |
Landed Late
|
Track > |
| Jan 01 | FLL | BOS | 07:51 | 10:37 |
Landed
|
Track > |
| Dec 31 | FLL | BOS | 08:00 | 10:47 |
Landed
|
Track > |
| Dec 30 | FLL | BOS | 08:50 | 11:21 |
Landed Late
|
Track > |
| Dec 29 | FLL | BOS | 07:47 | 10:30 |
Landed
|
Track > |
Spirit Airlines Flight NK3900 connects Fort Lauderdale, United States to Boston, United States, taking off from Fort Lauderdale Hollywood International Airport FLL and landing at Boston Logan International Airport BOS.
How long is the NK3900 flight from Fort Lauderdale to Boston?
The average flight time from Fort Lauderdale to Boston is 2 hours and 43 minutes. The flight distance is 1994 km / 1239 miles and the average flight speed is 733 km/h / 455 mph.
What is the On-Time Performance (OTP) of Spirit Airlines Flight NK3900 Fort Lauderdale to Boston?
The Airportia On-Time Performance Rating for Spirit Airlines Flight NK3900 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight NK3900 arriving at?
Flight NK3900 arrives at Boston Logan International Airport (BOS) Terminal B.
When was the latest NK3900 flight?
The latest flight took off on Wednesday, January 7th, 2026 with the flight status being Landed on 10:29.
How else can the flight NK3900 be referenced as?
This Spirit Airlines flight can also be referenced as NKS3900, NK 3900, NKS 3900.
How often is flight NK3900 delayed?
On average, 50% of all NK3900 flights are delayed. The average delay is 30 minutes.
Can I get compensation for my delayed or cancelled NK3900 flight or baggage issues?
If your NK3900 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our NK3900 Flight Tracker above for more details.
Other flights departing from Fort Lauderdale FLL: NK1012, NK2249, NK273, NK1419
Other flights arriving at Boston BOS: NK363, NK890, NK2990, DL5903
All flights connecting Fort Lauderdale FLL to Boston BOS.