Carrier route record
B6BOS→LAS
JetBlue Airways · Boston to Las Vegas
- Flights
- 1,045
- Period
- September 2025 to August 2026
- Share of route
- 65%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on BOS to LAS sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 4 points worse than the national rate of 77.3%. The late ones land a little over an hour behind schedule. That rests on 1,045 flights, with a median arrival 7 minutes early.
The national on-time rate over the same period is 77.3%, so JetBlue on BOS to LAS runs 4 points behind the country as a whole. Across a thousand flights that is about 41 extra late arrivals.
Key figures
On time
73.2%
Arrivals under 15 minutes late, of 1,025 completed flights
Avg delay
74 min
Across delayed arrivals only, not all flights
Cancelled
1.53%
National rate is 1.89%
Whole route
74.7%
Every carrier on BOS to LAS, 1,596 flights
These figures cover 1,045 flights between September 2025 and August 2026. Beyond the headline rate, 11.2% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
JetBlue against every carrier on BOS to LAS
JetBlue flew 1,045 of the 1,596 flights on BOS to LAS, most of the route. Its 73.2% on time is 2 points worse than the route as a whole, which runs 74.7%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Delta at 77.5% to JetBlue at 73.2%.
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 |
|---|---|---|---|---|---|
| Delta Air Lines | 551 | 77.5% | 59 min | 1.27% | B |
| JetBlue Airways (this page) | 1,045 | 73.2% | 74 min | 1.53% | C |
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 22 points, against half a point between the best and worst carrier.
- 5am–8am181 flights75.7%
- 8am–11am363 flights82.9%
- 11am–2pm27 flights—
- 2pm–5pm72 flights67.6%
- 5pm–8pm198 flights65.5%
- 8pm–5am204 flights60.8%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 60.8% on time, against 82.9% 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 8am–11am window is the busiest, with 363 flights scheduled in it.
Across the year
JetBlue on BOS to LAS through the year
August is the worst month at 66.1% on time, 19 points below September, the best at 84.6%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. October was the busiest month here, with 118 flights.
Across the week, Saturday is the strongest day at 79.7% on time and Sunday the weakest at 63.6%, a spread of 16 points.
Arrival by arrival
How late JetBlue on BOS to LAS runs when it is late
JetBlue on BOS to LAS often beats the schedule: 367 of 1,025 completed flights, 36%, arrived 15 minutes or more early. The 275 late arrivals split 86 under half an hour, 74 between 30 and 60 minutes, and 115 an hour or more.
- 15+ min early367 flights35.8%
- Within 15 min383 flights37.4%
- 15–29 min late86 flights8.4%
- 30–59 min late74 flights7.2%
- 1–2 hours late60 flights5.9%
- 2+ hours late55 flights5.4%
Scale runs 0% to 100%.
Share of 1,025 completed flights by arrival against schedule.
51 of 246 late departures made up the time and arrived on time, 21% of them. In the other direction, 80 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at LAS.
The worst days
Worst days for JetBlue on BOS to LAS
The latest arrival of the period was on 19 May 2026, 10 hours 56 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 19 May 2026 | 10 hours 56 minutes | Carrier |
| 13 October 2025 | 5 hours 39 minutes | Late-arriving aircraft |
| 30 July 2026 | 5 hours 36 minutes | Carrier |
| 22 October 2025 | 5 hours 10 minutes | Late-arriving aircraft |
| 29 May 2026 | 5 hours 1 minute | Late-arriving aircraft |
Delay causes
Why JetBlue runs late on this route
Late-arriving aircraft accounts for 49% of the 20,000 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Late-arriving aircraft
- 25%Carrier
- 23%National Airspace System
- 3%Extreme weather
49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 20,000 reported delay minutes here, that single category outweighs weather by 15 to one. The split is drawn from 20,472 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 82.9% on time here.
Cancellations sit at 1.53% against a national 1.89%, which is ordinary. Diversions add another 0.38%.
Connections and stage length
What a delay here costs
11.2% 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.
At 2,381 miles this is transcontinental flying, and long routes get a quiet structural advantage. Scheduled block time on a flight this length carries more padding in absolute minutes, so a twenty-minute late departure often still becomes an on-time arrival. Read the on-time rate here as slightly flattering next to a short-haul route with the same operational quality.
The return leg runs 75.1% on time across 1,046 flights, within 2 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 1,045 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 BOS to LAS
Put together: treat all of this as provisional. 1,045 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 73.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 1,025 completed flights over 12 months sit behind that.
Related
Where to go next
- BOS to LAS, every carrier
- JetBlue on LAS to BOS, the return leg
- Delta Air Lines on BOS to LAS77.5%
- JetBlue Airways network-wide record
- Boston Logan International (BOS) delay statistics
- Harry Reid International (LAS) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
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.