Flight number record

B6 448

JetBlue Airways · Las Vegas to New York

Route: LAS → JFK
Departs: 10:10
Flights: 273
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s B6 448, check with JetBlue Airways.

B6 448 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 an hour and a half. That rests on 273 flights, with a median arrival 12 minutes early.

Set against the rest of the country, B6 448'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 258 completed flights

Avg delay

83 min

Across delayed arrivals only, not all flights

Cancelled

3.30%

National rate is 1.81%

1 hour+ late

5.4%

National rate is 8.1%

These figures cover 273 flights between July 2025 and June 2026. The median arrival is 12 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 448 flies

B6 448 flies LAS to JFK without a single fixed slot. Its most common scheduled departure was 10:10, used on 55 of 273 flights, with 07:00 (50 flights) and 09:58 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 10:1055 flights20.1%
Departs 07:0050 flights18.3%
Departs 09:5837 flights13.6%

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 10:10 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and B6 448 runs level with that at 85.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

B6 448 next to LAS to JFK

Every carrier on LAS to JFK combined arrived on time 81.3% of the time across 3,710 flights, so B6 448 is 4 points ahead of it. JetBlue flew 1,373 flights on the same city pair under all its flight numbers, including this one, and those ran 78.6% on time. Across its whole network JetBlue Airways managed 72.7%, which this flight beats by 13 points.

B6 448 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
B6 448thin sample	273	85.3%	83 min	3.30%	A−
All JetBlue Airways on LAS–JFK	1,373	78.6%	92 min	2.77%	B
All carriers on LAS–JFK	3,710	81.3%	87 min	2.40%	B
JetBlue Airways, whole network	234,468	72.7%	76 min	2.56%	C

Across the year

B6 448 quarter by quarter

Quarter by quarter B6 448 held fairly steady: 81.7% in Jul–Sep 2025, 88.9% in Oct–Dec 2025 and 82.4% in Jan–Mar 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202591 flights81.7%
Oct–Dec 202582 flights88.9%
Jan–Mar 202679 flights82.4%
Apr–Jun 202621 flights—

Scale runs 75% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, B6 448 did best on Monday at 94.7% on time and worst on Wednesday at 75.6%. Each day rests on about 39 flights, so a gap of 19 points is worth noticing but could still narrow in another year.

Delay causes

Why B6 448 runs late

One category carries most of the weight here. National Airspace System accounts for 60% of the 3,138 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.

National Airspace System
60%
Carrier
21%
Late-arriving aircraft
19%

60% 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 1,895 minutes out of 3,138, against a national NAS share of 21%. The split is drawn from 3,138 delay minutes reported on B6 448.

Cancellations run at 3.30%, against 1.81% nationally. That is about 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

5.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.

At 2,248 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.

Every one of the 273 flights under B6 448 in the data flew LAS to JFK. 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. 273 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 448

For a booking, the cancellation rate is the figure to plan around on B6 448: 3.30% of its 273 scheduled flights did not operate. A late arrival costs an hour and a half, 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