BOS to FLL flight delays & on-time performance
Nonstop flights from Boston Logan International Airport to Fort Lauderdale Hollywood International Airport · 1,237 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BOS or FLL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Boston (BOS) to Fort Lauderdale (FLL) arrived on time 67% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3.6% were cancelled, and 13% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (70% on time); Spirit Airlines was the least (64%).
- Departures scheduled around 6am did best (82% on time); around 5pm did worst (48%).
- Wednesday was the most reliable day to fly (77% on time) and Sunday the least (59%).
- The largest source of delay minutes was late-arriving aircraft (38%).
Which airline is most on time from BOS to FLL?
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 | 70% | 3.0% | 25 min | 13.0% | 886 |
| JetBlue | 67% | 3.3% | 24 min | 12.9% | 1,963 |
| Spirit Airlines | 64% | 5.7% | 30 min | 16.0% | 510 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am79%200 flights
- 6am82%447 flights
- 7am78%429 flights
- 8am80%179 flights
- 9am76%87 flights
- 10am70%146 flights
- 11am62%135 flights
- 12pm66%129 flights
- 1pm58%72 flights
- 2pm59%77 flights
- 3pm64%344 flights
- 4pm58%225 flights
- 5pm48%204 flights
- 6pm49%191 flights
- 7pm58%270 flights
- 8pm58%165 flights
- 9pm47%58 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday66%7.3% cancelled
- Tuesday72%4.6% cancelled
- Wednesday77%2.0% cancelled
- Thursday66%0.6% cancelled
- Friday66%2.2% cancelled
- Saturday65%2.9% cancelled
- Sunday59%5.2% 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 aircraft38%
- Air traffic control & airport congestion32%
- Airline (crew, maintenance, cleaning, fueling)29%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather49%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion24%
- Security0%
BOS to FLL: common questions
- How often are BOS to FLL 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 Boston to Fort Lauderdale cancelled?
- 3.6% of scheduled flights were cancelled (120 of 3,359).
- How long are typical delays?
- Across all flights the average arrival delay was 25 min (early arrivals count as zero). Flights that were late arrived 72 min behind schedule on average, and 13.4% of flights were an hour or more late.
- How long is taxi time at BOS?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: FLL to BOS — 67% on time
More flights from Boston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BOS → FLL, nonstop flights by US airlines that report to the DOT. How we calculate this.