Carrier route record
B6BOS→RSW
JetBlue Airways · Boston to Fort Myers
- Flights
- 1,596
- Period
- July 2025 to June 2026
- Share of route
- 71%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on BOS to RSW sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 1,596 flights, with a median arrival 3 minutes early.
The national on-time rate over the same period is 77.6%, so JetBlue on BOS to RSW runs 8 points behind the country as a whole. Across a thousand flights that is about 82 extra late arrivals.
Key figures
On time
69.4%
Arrivals under 15 minutes late, of 1,545 completed flights
Avg delay
67 min
Across delayed arrivals only, not all flights
Cancelled
2.63%
National rate is 1.81%
Whole route
70.5%
Every carrier on BOS to RSW, 2,253 flights
These figures cover 1,596 flights between July 2025 and June 2026. Beyond the headline rate, 12.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
JetBlue against every carrier on BOS to RSW
JetBlue flew 1,596 of the 2,253 flights on BOS to RSW, most of the route. Its 69.4% on time is about level with the route as a whole at 70.5%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 77.5% to Spirit at 34.3%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 582 | 77.5% | 64 min | 1.55% | B |
| JetBlue Airways (this page) | 1,596 | 69.4% | 67 min | 2.63% | C |
| Spirit Airlinesthin sample | 75 | 34.3% | 52 min | 10.67% | F− |
Flight by flight
JetBlue flight numbers on BOS to RSW
Departure window
When JetBlue runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 26 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am337 flights87.3%
- 8am–11am148 flights78.5%
- 11am–2pm298 flights66.6%
- 2pm–5pm363 flights61.4%
- 5pm–8pm299 flights62.1%
- 8pm–5am151 flights61.1%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 61.1% on time, against 87.3% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 363 flights scheduled in it.
Across the year
JetBlue on BOS to RSW through the year
January is the weak month at 53.9% on time, against 82.9% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. March was the busiest month here, with 235 flights.
Across the week, Wednesday is the strongest day at 79.4% on time and Sunday the weakest at 59.4%. 20 points is a smaller lever than departure hour, but it is free.
Delay causes
Why JetBlue runs late on this route
One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 32,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 44%Late-arriving aircraft
- 26%Carrier
- 26%National Airspace System
- 3%Extreme weather
- 0%Security
44% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 32,000 reported delay minutes here, that single category outweighs weather by 15 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 31,775 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 87.3% on time here.
Cancellations run at 2.63%, against 1.81% nationally. That is about one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 1,249 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg runs 69.9% on time across 1,596 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
The sample behind these figures is 1,596 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking JetBlue on BOS to RSW
Put together: the calendar is the biggest lever here, not the carrier or the hour. May runs 82.9% on time and January 53.9%, a swing of 29 points. If the dates move at all, move them out of January before you think about anything else. 1,545 completed flights over 12 months sit behind that.
Related
Where to go next
- BOS to RSW, every carrier
- JetBlue on RSW to BOS, the return leg
- Delta Air Lines on BOS to RSW77.5%
- JetBlue Airways network-wide record
- Boston Logan International (BOS) delay statistics
- Southwest Florida International (RSW) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.