Carrier route record
B6MSY→BOS
JetBlue Airways · New Orleans to Boston
- Flights
- 479
- Period
- September 2025 to August 2026
- Share of route
- 56%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on MSY to BOS draws a D. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 479 flights, with a median arrival 3 minutes late.
The national on-time rate over the same period is 77.3%, so JetBlue on MSY to BOS runs 16 points behind the country as a whole. Across a thousand flights that is about 161 extra late arrivals.
Key figures
On time
61.2%
Arrivals under 15 minutes late, of 469 completed flights
Avg delay
87 min
Across delayed arrivals only, not all flights
Cancelled
2.09%
National rate is 1.89%
Whole route
61.9%
Every carrier on MSY to BOS, 861 flights
These figures cover 479 flights between September 2025 and August 2026. Beyond the headline rate, 20.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
JetBlue against every carrier on MSY to BOS
JetBlue flew 479 of the 861 flights on MSY to BOS, most of the route. Its 61.2% on time is about level with the route as a whole at 61.9%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from American at 100.0% to Spirit at 50.0%. Two of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlinesthin sample | 2 | 100.0% | — | 0.00% | A+ |
| Delta Air Lines | 372 | 62.9% | 83 min | 2.15% | D |
| JetBlue Airways (this page) | 479 | 61.2% | 87 min | 2.09% | D |
| Spirit Airlinesthin sample | 8 | 50.0% | 39 min | 0.00% | F+ |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When JetBlue runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 31 points, against half a point between the best and worst carrier.
- 5am–8am49 flights76.6%
- 8am–11am61 flights83.3%
- 11am–2pm132 flights57.6%
- 2pm–5pm146 flights55.3%
- 5pm–8pm90 flights52.3%
- 8pm–5am1 flights—
Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 52.3% on time, against 83.3% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 146 flights scheduled in it.
Across the year
JetBlue on MSY to BOS through the year
May is the best month on the calendar at 80.9% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. October was the busiest month here, with 52 flights.
Across the week, Saturday is the strongest day at 73.3% on time and Monday the weakest at 50.0%, a spread of 23 points.
Arrival by arrival
How late JetBlue on MSY to BOS runs when it is late
JetBlue on MSY to BOS often beats the schedule: 118 of 469 completed flights, 25%, arrived 15 minutes or more early. When JetBlue on MSY to BOS is late it tends to be very late: 94 of its 182 late arrivals were an hour or more behind, and 41 were two hours or more.
- 15+ min early118 flights25.2%
- Within 15 min169 flights36.0%
- 15–29 min late33 flights7.0%
- 30–59 min late55 flights11.7%
- 1–2 hours late53 flights11.3%
- 2+ hours late41 flights8.7%
Scale runs 0% to 100%.
Share of 469 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 188 departures that left 15 minutes late or more, only 22 made it up before arrival. 16 flights left on time and still arrived late.
The worst days
Worst days for JetBlue on MSY to BOS
The latest arrival of the period was on 16 February 2026, 11 hours 16 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 February 2026 | 11 hours 16 minutes | Late-arriving aircraft |
| 24 January 2026 | 9 hours 5 minutes | Late-arriving aircraft |
| 21 February 2026 | 7 hours 36 minutes | Late-arriving aircraft |
| 13 October 2025 | 5 hours 4 minutes | Late-arriving aircraft |
| 2 August 2026 | 5 hours 3 minutes | Late-arriving aircraft |
Delay causes
Why JetBlue runs late on this route
Late-arriving aircraft accounts for 46% of the 16,000 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Late-arriving aircraft
- 38%National Airspace System
- 16%Carrier
- 1%Extreme weather
- 0%Security
46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 16,000 reported delay minutes here, that single category outweighs weather by 46 to one. The split is drawn from 15,899 reported delay minutes.
38% 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 6,050 minutes out of 16,000, against a national NAS share of 21%.
Cancellations sit at 2.09% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
20.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 1,367 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.
The return leg is a different operation and performs like one: it runs 72.0% on time across 479 flights, 11 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 11 points of difference.
One caution: this is a thin sample. 479 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 JetBlue on MSY to BOS
Put together: treat all of this as provisional. 479 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 61.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 469 completed flights over 12 months sit behind that.
Related
Where to go next
- MSY to BOS, every carrier
- JetBlue on BOS to MSY, the return leg
- Delta Air Lines on MSY to BOS62.9%
- JetBlue Airways network-wide record
- Louis Armstrong New Orleans International (MSY) delay statistics
- Boston Logan International (BOS) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.05 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.