Flight number record

B6 37

JetBlue Airways · Hartford to Orlando

Route: BDL → MCO
Departs: 12:00
Flights: 266
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 37, check with JetBlue Airways.

B6 37 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 266 flights, with a median arrival 3 minutes early.

The national on-time rate over the same period is 77.6%, so B6 37 runs 9 points behind the country as a whole. Across a thousand flights that is about 87 extra late arrivals.

On time

68.9%

Arrivals under 15 minutes late, of 254 completed flights

Avg delay

77 min

Across delayed arrivals only, not all flights

Cancelled

3.01%

National rate is 1.81%

1 hour+ late

10.6%

National rate is 8.1%

These figures cover 266 flights between July 2025 and June 2026. Beyond the headline rate, 10.6% 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.

Schedule

When B6 37 flies

B6 37 flies BDL to MCO without a single fixed slot. Its most common scheduled departure was 12:00, used on 36 of 266 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 12:0036 flights13.5%

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 12:00 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and B6 37 runs 10 points worse at 68.9%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 37 next to BDL to MCO

Every carrier on BDL to MCO combined arrived on time 74.3% of the time across 1,892 flights, so B6 37 is 5 points behind it. JetBlue flew 1,013 flights on the same city pair under all its flight numbers, including this one, and those ran 72.2% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight trails by 4 points.

B6 37 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 37thin sample	266	68.9%	77 min	3.01%	C−
All JetBlue Airways on BDL–MCO	1,013	72.2%	74 min	2.17%	C
All carriers on BDL–MCO	1,892	74.3%	73 min	1.85%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 37 quarter by quarter

Quarter by quarter B6 37 held fairly steady: 63.3% in Jul–Sep 2025, 71.4% in Oct–Dec 2025 and 68.7% in Jan–Mar 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202564 flights63.3%
Oct–Dec 202585 flights71.4%
Jan–Mar 202690 flights68.7%
Apr–Jun 202627 flights—

Scale runs 55% to 75%. Rows with fewer than 30 flights show a dash.

By weekday, B6 37 did best on Tuesday at 80.0% on time and worst on Friday at 59.5%. Each day rests on about 38 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 37 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 52% of the 6,086 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.

Late-arriving aircraft
52%
National Airspace System
35%
Carrier
13%

52% 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 6,086 reported delay minutes here, that single category outweighs weather by 52 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 6,086 delay minutes reported on B6 37.

Cancellations run at 3.01%, 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 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. 10.6% 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 1,050 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 266 flights under B6 37 in the data flew BDL to MCO. 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. 266 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 37

For a booking, the cancellation rate is the figure to plan around on B6 37: 3.01% of its 266 scheduled flights did not operate. A late arrival costs a little over an hour, 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