Flight number record

B6 266

JetBlue Airways · Fort Myers to Boston

Route: RSW → BOS
Departs: 11:13
Flights: 279
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 266, check with JetBlue Airways.

B6 266 draws a C. About one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 279 flights, with a median arrival right on schedule.

The national on-time rate over the same period is 77.6%, so B6 266 runs 12 points behind the country as a whole. Across a thousand flights that is about 115 extra late arrivals.

On time

66.1%

Arrivals under 15 minutes late, of 274 completed flights

Avg delay

75 min

Across delayed arrivals only, not all flights

Cancelled

1.79%

National rate is 1.81%

1 hour+ late

13.1%

National rate is 8.1%

These figures cover 279 flights between July 2025 and June 2026. Beyond the headline rate, 13.1% 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.

Schedule

When B6 266 flies

B6 266 flies RSW to BOS without a single fixed slot. Its most common scheduled departure was 11:13, used on 55 of 279 flights, with 11:16 (38 flights) and 15:45 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:1355 flights19.7%
Departs 11:1638 flights13.6%
Departs 15:4537 flights13.3%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 11:13 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and B6 266 runs 13 points worse at 66.1%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 266 next to RSW to BOS

Every carrier on RSW to BOS combined arrived on time 70.4% of the time across 2,254 flights, so B6 266 is 4 points behind it. JetBlue flew 1,596 flights on the same city pair under all its flight numbers, including this one, and those ran 69.9% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 7 points.

B6 266 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 266thin sample	279	66.1%	75 min	1.79%	C
All JetBlue Airways on RSW–BOS	1,596	69.9%	86 min	2.88%	C
All carriers on RSW–BOS	2,254	70.4%	84 min	2.80%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 266 quarter by quarter

B6 266 did not run the same all year. Its best quarter was Jul–Sep 2025 at 71.4% on time and its weakest Oct–Dec 2025 at 56.5%, a swing of 15 points on roughly 70 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202592 flights71.4%
Oct–Dec 202548 flights56.5%
Jan–Mar 202650 flights59.2%
Apr–Jun 202689 flights69.3%

Scale runs 50% to 75%. Rows with fewer than 30 flights show a dash.

By weekday, B6 266 ranged from 61.5% on Wednesday to 72.2% on Saturday. With about 40 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why B6 266 runs late

One category carries most of the weight here. National Airspace System accounts for 44% of the 6,962 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.

National Airspace System
44%
Late-arriving aircraft
32%
Carrier
17%
Extreme weather
7%

44% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 3,066 minutes out of 6,962, against a national NAS share of 21%. The split is drawn from 6,962 delay minutes reported on B6 266.

Cancellations sit at 1.79% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.1% 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.

Every one of the 279 flights under B6 266 in the data flew RSW to BOS. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 279 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking B6 266

For a booking, B6 266 is a flight to put a long connection behind. 13.1% of its completed flights arrived an hour or more late, which a short layover will not absorb. If the onward flight is on a separate ticket, the risk sits with you.

Where to go next

A flight number here means JetBlue Airways’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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.

Key figures