Flight number record
B6 438
JetBlue Airways · Orlando to Hartford
- Route
- MCO → BDL
- Departs
- 19:30
- Flights
- 263
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s B6 438, check with JetBlue Airways.
B6 438 draws a D. Roughly 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 263 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.6%, so B6 438 runs 14 points behind the country as a whole. Across a thousand flights that is about 141 extra late arrivals.
Key figures
On time
63.5%
Arrivals under 15 minutes late, of 255 completed flights
Avg delay
75 min
Across delayed arrivals only, not all flights
Cancelled
2.28%
National rate is 1.81%
1 hour+ late
16.1%
National rate is 8.1%
These figures cover 263 flights between July 2025 and June 2026. Beyond the headline rate, 16.1% 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 438 flies
B6 438 flies MCO to BDL without a single fixed slot. Its most common scheduled departure was 19:30, used on 39 of 263 flights, with 17:15 (31 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 19:3039 flights14.8%
- Departs 17:1531 flights11.8%
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 19:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.2%, and B6 438 runs 5 points worse at 63.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
B6 438 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 438 is 9 points behind 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 trails by 9 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| B6 438thin sample | 263 | 63.5% | 75 min | 2.28% | D |
| 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 438 quarter by quarter
B6 438 did not run the same all year. Its best quarter was Apr–Jun 2026 at 77.8% on time and its weakest Jul–Sep 2025 at 50.0%, a swing of 28 points on roughly 88 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 flights50.0%
- Oct–Dec 202525 flights—
- Jan–Mar 202684 flights60.3%
- Apr–Jun 202690 flights77.8%
Scale runs 40% to 85%. Rows with fewer than 30 flights show a dash.
By weekday, B6 438 did best on Wednesday at 73.5% on time and worst on Monday at 52.8%. 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 438 runs late
One category carries most of the weight here. Late-arriving aircraft accounts for 56% of the 7,005 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.
- 56%Late-arriving aircraft
- 20%Carrier
- 17%National Airspace System
- 7%Extreme weather
56% 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 7,005 reported delay minutes here, that single category outweighs weather by 9 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 7,005 delay minutes reported on B6 438.
Cancellations sit at 2.28% against a national 1.81%, which is ordinary. Diversions add another 0.76%.
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. 16.1% 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 1,050 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 263 flights under B6 438 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. 263 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 438
For a booking, B6 438 is a flight to put a long connection behind. 16.1% 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.
Related
Where to go next
- MCO to BDL, every carrier and departure
- BDL to MCO, the return direction
- JetBlue Airways 138 on the same route85.3%
- Orlando International (MCO) delay statistics
- JetBlue Airways on-time record
- Every JetBlue Airways flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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.