FLL to BOS flight delays & on-time performance
Nonstop flights from Fort Lauderdale Hollywood International Airport to Boston Logan International Airport · 1,237 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at FLL or BOS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Fort Lauderdale (FLL) to Boston (BOS) arrived on time 67% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3.5% were cancelled, and 15% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (72% on time); Spirit Airlines was the least (61%).
- Departures scheduled around 6am did best (91% on time); around 9pm did worst (40%).
- Wednesday was the most reliable day to fly (75% on time) and Sunday the least (59%).
- The largest source of delay minutes was late-arriving aircraft (37%).
Which airline is most on time from FLL to BOS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 72% | 3.2% | 23 min | 11.8% | 885 |
| JetBlue | 66% | 3.1% | 27 min | 15.8% | 1,953 |
| Spirit Airlines | 61% | 5.3% | 30 min | 16.2% | 509 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am91%241 flights
- 7am82%333 flights
- 8am89%202 flights
- 9am78%120 flights
- 11am69%396 flights
- 12pm59%171 flights
- 1pm52%137 flights
- 2pm57%174 flights
- 3pm54%77 flights
- 4pm53%190 flights
- 5pm52%134 flights
- 6pm47%113 flights
- 7pm59%136 flights
- 8pm66%792 flights
- 9pm40%102 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday62%7.3% cancelled
- Tuesday70%2.4% cancelled
- Wednesday75%0.7% cancelled
- Thursday70%1.0% cancelled
- Friday63%2.6% cancelled
- Saturday71%4.2% cancelled
- Sunday59%5.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft37%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion30%
- Extreme weather3%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather47%
- Airline (crew, maintenance, cleaning, fueling)28%
- Air traffic control & airport congestion25%
- Security0%
FLL to BOS: common questions
- How often are FLL to BOS flights on time?
- 67% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Fort Lauderdale to Boston cancelled?
- 3.5% of scheduled flights were cancelled (116 of 3,347).
- How long are typical delays?
- Across all flights the average arrival delay was 27 min (early arrivals count as zero). Flights that were late arrived 77 min behind schedule on average, and 14.8% of flights were an hour or more late.
- How long is taxi time at FLL?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to FLL — 67% on time
More flights from Fort Lauderdale
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: FLL → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.