Flight number record

B6 352

JetBlue Airways · Orlando to Boston

Route: MCO → BOS
Departs: 06:00
Flights: 297
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 352, check with JetBlue Airways.

B6 352 earns an A. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 297 flights, with a median arrival 11 minutes early.

Set against the rest of the country, B6 352's record is 8 points better than the US average of 77.6%. That gap is worth roughly 75 fewer late arrivals for every thousand flights.

On time

85.1%

Arrivals under 15 minutes late, of 289 completed flights

Avg delay

109 min

Across delayed arrivals only, not all flights

Cancelled

2.69%

National rate is 1.81%

1 hour+ late

7.3%

National rate is 8.1%

These figures cover 297 flights between July 2025 and June 2026. The median arrival is 11 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When B6 352 flies

B6 352 flies MCO to BOS without a single fixed slot. Its most common scheduled departure was 06:00, used on 142 of 297 flights, with 12:00 (55 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00142 flights47.8%
Departs 12:0055 flights18.5%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and B6 352 runs 4 points worse at 85.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

B6 352 next to MCO to BOS

Every carrier on MCO to BOS combined arrived on time 70.5% of the time across 4,611 flights, so B6 352 is 15 points ahead of it. JetBlue flew 2,495 flights on the same city pair under all its flight numbers, including this one, and those ran 67.3% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 12 points.

B6 352 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 352thin sample	297	85.1%	109 min	2.69%	A
All JetBlue Airways on MCO–BOS	2,495	67.3%	78 min	3.13%	C−
All carriers on MCO–BOS	4,611	70.5%	75 min	2.88%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 352 quarter by quarter

B6 352 did not run the same all year. Its best quarter was Jan–Mar 2026 at 93.8% on time and its weakest Jul–Sep 2025 at 58.1%, a swing of 36 points on roughly 74 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 202564 flights58.1%
Oct–Dec 202564 flights90.5%
Jan–Mar 202685 flights93.8%
Apr–Jun 202684 flights92.9%

Scale runs 50% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, B6 352 did best on Monday at 93.0% on time and worst on Wednesday at 74.4%. Each day rests on about 42 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 352 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 4,694 reported delay minutes.

Carrier
41%
Late-arriving aircraft
39%
National Airspace System
17%
Extreme weather
3%

39% 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 4,694 reported delay minutes here, that single category outweighs weather by 13 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 4,694 delay minutes reported on B6 352.

Cancellations run at 2.69%, 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 routes

What a delay on this flight costs

7.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.

The 1,121 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 same number turns up on one other city pair in the data, including SRQ to BOS (25), but none flew often enough under B6 352 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to MCO to BOS only.

One caution: this is a thin sample. 297 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 352

For a booking, the cancellation rate is the figure to plan around on B6 352: 2.69% of its 297 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.

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