Route · FLL → BOS · 2020–2025 BTS data
Fort Lauderdale to Boston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), FLL to BOS (Fort Lauderdale to Boston) ranks #429 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 73%
- On-time
- -6 pts
- vs US avg
- 79 min
- Delay when late
- 18,044
- Flights
- #429 of 4927
- Corpus placement
Cancelled
1.6%
Best Month
Nov 2024 86%
Worst Month
Jul 2025 56%
Distance
1,237 mi
Carriers
20
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 360 | 133 | 10 | 1 | B6,DL,NK |
| Nov 2025 | 296 | 64 | 16 | 0 | NK,B6,DL |
| Oct 2025 | 249 | 82 | 1 | 0 | B6,DL,NK |
| Sep 2025 | 232 | 70 | 4 | 0 | DL,NK,B6 |
| Aug 2025 | 240 | 73 | 0 | 0 | NK,B6,DL |
| Jul 2025 | 246 | 108 | 10 | 0 | B6,DL,NK |
| Jun 2025 | 233 | 78 | 2 | 1 | B6,DL,NK |
| May 2025 | 248 | 89 | 1 | 0 | B6,DL,NK |
| Apr 2025 | 359 | 76 | 1 | 0 | DL,NK,B6 |
| Mar 2025 | 366 | 105 | 1 | 0 | B6,DL,NK |
| Feb 2025 | 341 | 80 | 4 | 1 | B6,DL,NK |
| Jan 2025 | 303 | 65 | 4 | 0 | B6,DL,NK |
| Dec 2024 | 344 | 88 | 5 | 0 | B6,DL,NK |
| Nov 2024 | 299 | 43 | 0 | 0 | B6,NK,DL |
| Oct 2024 | 261 | 50 | 3 | 1 | DL,NK,B6 |
| Sep 2024 | 241 | 65 | 0 | 0 | NK,B6,DL |
| Aug 2024 | 232 | 89 | 3 | 0 | B6,DL,NK |
| Jul 2024 | 218 | 68 | 6 | 0 | B6,DL,NK |
| Jun 2024 | 210 | 58 | 8 | 1 | B6,DL,NK |
| May 2024 | 217 | 76 | 0 | 1 | B6,DL,NK |
| Apr 2024 | 259 | 80 | 5 | 0 | B6,DL,NK |
| Mar 2024 | 306 | 91 | 9 | 0 | B6,DL,NK |
| Feb 2024 | 293 | 102 | 7 | 0 | B6,DL,NK |
| Jan 2024 | 281 | 81 | 4 | 3 | B6,DL,NK |
FLL–BOS seasonal on-time pattern
Best: November (79.9%) · weakest: July (64.8%)
Strongest calendar month
November
79.9% on-time · ~257 flights/mo
Busiest calendar month
March
~313 flights/mo avg
Weakest calendar month
July
64.8% on-time · ~219 flights/mo
Cancellation Rate
1.6%
104 of 6,634 flights
Diversion Rate
0.1%
9 of 6,634 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
FLL - Fort Lauderdale
Full on-time, delay-cause, and seasonal performance for Fort Lauderdale, FL.
FLL on-time profileBOS - Boston
Full on-time, delay-cause, and seasonal performance for Boston, MA.
BOS on-time profileCompare the two airports
See FLL and BOS side by side on delays, cancellations, and reliability.
Compare FLL vs BOSOrigin-hub reliability standing
Softer reliability from FLL
Among 62 routes leaving FLL, only 29 (including this one) clear below 75% on-time, while 1 stay ≥85% and 32 sit mid-band. Travelers comparing FLL options should weigh this 73% print against those peers · fleet on-time rank #4681 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to FLL–BOS.
Routes with a similar on-time rate
What the Data Says About FLL to BOS
On-time performance on the FLL to BOS pairing (Fort Lauderdale to Boston) trails a chunk of the network: 73% of 18,044 tracked flights arrived on schedule, with a 79.2-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% (104 of 6,634 flights), with 0.1% diverted.
The monthly split is wide on this route: Nov 2024 posted the strongest performance at 86% on-time, while Jul 2025 came in at just 56% - a 30-point swing worth factoring into travel timing.
On the multi-year calendar, FLL–BOS peaks in November at 79.9% on-time while March carries the heaviest traffic (~313 flights per month) ; the softest month is July at 64.8%, a 15.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does FLL to BOS rank among US routes by traffic? ▼
How often are flights delayed from FLL to BOS? ▼
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Airports on this route
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 FLL–BOS data
FLL–BOS sits 6 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare FLL and BOS airport profiles: delay causes and top routes differ even on the same corridor. FLL airport
- If your dates flex, November (79.9% on-time) beats July (64.8%) on this corridor. Seasonal chart
- 4 other routes post a similar 73% 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.
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.