Flight number record

B6 138

JetBlue Airways · Orlando to Hartford

Route: MCO → BDL
Departs: 11:20
Flights: 332
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 138, check with JetBlue Airways.

B6 138 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 about an hour. That rests on 332 flights, with a median arrival 6 minutes early.

Set against the rest of the country, B6 138's record is 8 points better than the US average of 77.6%. That gap is worth roughly 77 fewer late arrivals for every thousand flights.

On time

85.3%

Arrivals under 15 minutes late, of 326 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

1.81%

National rate is 1.81%

1 hour+ late

4.6%

National rate is 8.1%

These figures cover 332 flights between July 2025 and June 2026. The median arrival is 6 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 138 flies

B6 138 flies MCO to BDL without a single fixed slot. Its most common scheduled departure was 11:20, used on 50 of 332 flights. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 11:2050 flights15.1%

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 11:20 departure sits in the 11am–2pm window. Across every US flight scheduled in that window the on-time rate is 78.8%, and B6 138 runs 7 points better at 85.3%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.

Against the route

B6 138 next to MCO to BDL

Every carrier on MCO to BDL combined arrived on time 72.7% of the time across 1,890 flights, so B6 138 is 13 points ahead of it. JetBlue flew 1,011 flights on the same city pair under all its flight numbers, including this one, and those ran 73.6% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 13 points.

B6 138 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 138thin sample	332	85.3%	67 min	1.81%	A
All JetBlue Airways on MCO–BDL	1,011	73.6%	74 min	1.98%	C
All carriers on MCO–BDL	1,890	72.7%	70 min	1.90%	C
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 138 quarter by quarter

B6 138 did not run the same all year. Its best quarter was Apr–Jun 2026 at 91.4% on time and its weakest Jan–Mar 2026 at 80.8%, a swing of 11 points on roughly 83 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 flights82.6%
Oct–Dec 202592 flights86.8%
Jan–Mar 202678 flights80.8%
Apr–Jun 202670 flights91.4%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, B6 138 ranged from 79.2% on Thursday to 90.9% on Wednesday. With about 47 flights behind each day, a spread of 12 points is inside normal variation, so the day you fly is not worth changing for this flight.

Delay causes

Why B6 138 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 44% of the 3,228 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
44%
National Airspace System
27%
Carrier
26%
Extreme weather
3%
Security
0%

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 3,228 reported delay minutes here, that single category outweighs weather by 14 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 3,228 delay minutes reported on B6 138.

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

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.6% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

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 332 flights under B6 138 in the data flew MCO to BDL. 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. 332 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 138

For a booking, read B6 138 as 85.3% on time with 1.81% cancelled over 332 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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