PlainFlights

Route · BOS → FLL · 2020–2025 BTS data

Boston to Fort Lauderdale

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BOS to FLL (Boston to Fort Lauderdale) ranks #425 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

73.2%
On-time
-5.8 pts
vs US avg
76 min
Delay when late
18,085
Flights
#425 of 4927
Corpus placement

Cancelled

1.6%

Best Month

Nov 2024 85%

Worst Month

Dec 2025 54%

Distance

1,237 mi

Carriers

20

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 366 168 8 0 B6,DL,NK
Nov 2025 294 77 16 2 DL,NK,B6
Oct 2025 250 57 3 0 B6,DL,NK
Sep 2025 232 77 5 3 DL,NK,B6
Aug 2025 240 60 0 1 NK,B6,DL
Jul 2025 247 82 11 1 B6,NK,DL
Jun 2025 236 70 2 1 B6,DL,NK
May 2025 249 80 1 0 B6,DL,NK
Apr 2025 358 70 1 2 DL,NK,B6
Mar 2025 368 118 0 2 B6,DL,NK
Feb 2025 340 127 6 0 B6,DL,NK
Jan 2025 303 92 5 0 B6,DL,NK
Dec 2024 354 125 7 0 B6,DL,NK
Nov 2024 299 44 0 0 B6,NK,DL
Oct 2024 265 58 2 0 DL,NK,B6
Sep 2024 239 63 0 4 B6,DL,NK
Aug 2024 232 100 3 0 B6,DL,NK
Jul 2024 217 67 6 1 B6,DL,NK
Jun 2024 210 52 7 2 B6,DL,NK
May 2024 217 54 2 1 B6,DL,NK
Apr 2024 260 56 3 1 B6,DL,NK
Mar 2024 305 94 9 1 B6,DL,NK
Feb 2024 293 71 8 2 B6,DL,NK
Jan 2024 281 101 4 0 B6,DL,NK

BOS–FLL seasonal on-time pattern

Best: November (78.5%) · weakest: December (65.7%)

65%70%75%80% JanFebMarAprMayJunJulAugSepOctNovDec 65.7%

Strongest calendar month

November

78.5% on-time · ~257 flights/mo

Busiest calendar month

March

~313 flights/mo avg

Weakest calendar month

December

65.7% on-time · ~303 flights/mo

Cancellation Rate

1.6%

109 of 6,655 flights

Diversion Rate

0.4%

24 of 6,655 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

BOS - Boston

Full on-time, delay-cause, and seasonal performance for Boston, MA.

BOS on-time profile

FLL - Fort Lauderdale

Full on-time, delay-cause, and seasonal performance for Fort Lauderdale, FL.

FLL on-time profile

Compare the two airports

See BOS and FLL side by side on delays, cancellations, and reliability.

Compare BOS vs FLL

Origin-hub reliability standing

Softer reliability from BOS

Among 60 routes leaving BOS, only 5 (including this one) clear below 75% on-time, while 6 stay ≥85% and 49 sit mid-band. Travelers comparing BOS options should weigh this 73.2% print against those peers · fleet on-time rank #4662 of 4927.

What the Data Says About BOS to FLL

On-time performance on the BOS to FLL pairing (Boston to Fort Lauderdale) trails a chunk of the network: 73.2% of 18,085 tracked flights arrived on schedule, with a 76.1-minute average delay on the ones that ran late. The route spans about 1,237 miles across 20 carriers. Cancellations over the trailing 24 months hit 1.6% (109 of 6,655 flights), with 0.4% diverted.

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 85% on-time, while Dec 2025 came in at just 54% - a 31-point swing worth factoring into travel timing.

On the multi-year calendar, BOS–FLL peaks in November at 78.5% on-time while March carries the heaviest traffic (~313 flights per month) ; the softest month is December at 65.7%, a 12.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does BOS to FLL rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, BOS to FLL ranks #425 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from BOS to FLL? ▼
Flights from Boston to Fort Lauderdale have a 73.2% on-time rate based on 18,085 flights. The average delay is 76.1 minutes. The best recent month was Nov 2024 with 85% on-time.
What is the cancellation rate for BOS to FLL? ▼
Over the last 24 months, 1.6% of flights on this route were cancelled (109 of 6,655 flights) and 0.4% were diverted.
How far is the flight from BOS to FLL? ▼
The flight distance from Boston (BOS) to Fort Lauderdale (FLL) is approximately 1,237 miles. This route is served by 20 carriers.
When is the best time to fly from BOS to FLL? ▼
The best recent month for on-time performance was Nov 2024 (85% on-time). The worst was Dec 2025 (54% on-time). Consider booking during months with historically better performance.

Airports on this route

BOS Airport

Boston
FLL Airport

Fort Lauderdale
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using BOS–FLL data

BOS–FLL sits 5.8 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.

  • Compare BOS and FLL airport profiles: delay causes and top routes differ even on the same corridor. BOS airport
  • If your dates flex, November (78.5% on-time) beats December (65.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 73.2% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.