Carrier route record
B6RSW→BOS
JetBlue Airways · Fort Myers to Boston
- 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 RSW to BOS 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 an hour and a half behind schedule. That rests on 1,596 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.6%, so JetBlue on RSW to BOS runs 8 points behind the country as a whole. Across a thousand flights that is about 77 extra late arrivals.
Key figures
On time
69.9%
Arrivals under 15 minutes late, of 1,550 completed flights
Avg delay
86 min
Across delayed arrivals only, not all flights
Cancelled
2.88%
National rate is 1.81%
Whole route
70.4%
Every carrier on RSW to BOS, 2,254 flights
These figures cover 1,596 flights between July 2025 and June 2026. Beyond the headline rate, 12.6% 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 RSW to BOS
JetBlue flew 1,596 of the 2,254 flights on RSW to BOS, most of the route. Its 69.9% on time is about level with the route as a whole at 70.4%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 75.8% 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 | 75.8% | 78 min | 1.37% | B |
| JetBlue Airways (this page) | 1,596 | 69.9% | 86 min | 2.88% | C |
| Spirit Airlinesthin sample | 76 | 34.3% | 72 min | 11.84% | F− |
Flight by flight
JetBlue flight numbers on RSW to BOS
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 36 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–8am386 flights89.9%
- 8am–11am222 flights79.7%
- 11am–2pm310 flights68.3%
- 2pm–5pm250 flights58.8%
- 5pm–8pm291 flights53.7%
- 8pm–5am137 flights56.1%
Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 53.7% on time, against 89.9% 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 5am–8am window is the busiest, with 386 flights scheduled in it.
Across the year
JetBlue on RSW to BOS through the year
July is the worst month at 60.9% on time, 22 points below August, the best at 83.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 235 flights.
Across the week, Wednesday is the strongest day at 76.7% on time and Thursday the weakest at 65.9%. 11 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 43% of the 40,000 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.
- 43%Late-arriving aircraft
- 28%Carrier
- 25%National Airspace System
- 3%Extreme weather
- 0%Security
43% 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 40,000 reported delay minutes here, that single category outweighs weather by 12 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 40,249 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 89.9% on time here.
Cancellations run at 2.88%, against 1.81% nationally. That is roughly one flight in 30 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. 12.6% 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 69.4% 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 RSW to BOS
Put together: the delay figures matter less here than the 2.88% cancellation rate. A late arrival costs you an hour and a half; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,550 completed flights over 12 months sit behind that.
Related
Where to go next
- RSW to BOS, every carrier
- JetBlue on BOS to RSW, the return leg
- Delta Air Lines on RSW to BOS75.8%
- JetBlue Airways network-wide record
- Southwest Florida International (RSW) delay statistics
- Boston Logan International (BOS) 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.