Carrier route record
B6DEN→JFK
JetBlue Airways · Denver to New York
- Flights
- 545
- Period
- September 2025 to August 2026
- Share of route
- 36%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with JetBlue Airways.
JetBlue on DEN to JFK draws a C−. About one flight in three arrives at least 15 minutes late, and the typical late arrival is close to two hours behind schedule. Build slack into anything you connect to. That rests on 545 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so JetBlue on DEN to JFK runs 10 points behind the country as a whole. Across a thousand flights that is about 100 extra late arrivals.
Key figures
On time
67.3%
Arrivals under 15 minutes late, of 507 completed flights
Avg delay
106 min
Across delayed arrivals only, not all flights
Cancelled
6.06%
National rate is 1.89%
Whole route
80.6%
Every carrier on DEN to JFK, 1,531 flights
These figures cover 545 flights between September 2025 and August 2026. Beyond the headline rate, 14.2% 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 DEN to JFK
JetBlue flew 545 of the 1,531 flights on DEN to JFK, about 36% of it. Its 67.3% on time is 13 points worse than the route as a whole, which runs 80.6%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Delta at 87.7% to JetBlue at 67.3%. One 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 |
|---|---|---|---|---|---|
| Delta Air Lines | 937 | 87.7% | 77 min | 2.45% | A |
| Frontier Airlinesthin sample | 49 | 85.7% | 66 min | 0.00% | A+ |
| JetBlue Airways (this page) | 545 | 67.3% | 106 min | 6.06% | C− |
Flight by flight
JetBlue flight numbers on DEN to JFK
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 15 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am24 flights—
- 11am–2pm166 flights72.7%
- 2pm–5pm101 flights57.6%
- 5pm–8pm—
- 8pm–5am254 flights66.7%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 11am–2pm slot at 72.7% on time, ahead of 2pm–5pm at 57.6%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8pm–5am window is the busiest, with 254 flights scheduled in it.
Across the year
JetBlue on DEN to JFK through the year
August is the worst month at 38.2% on time, 49 points below April, the best at 86.7%. 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. August was the busiest month here, with 62 flights.
Across the week, Tuesday is the strongest day at 82.4% on time and Sunday the weakest at 56.3%, a spread of 26 points.
Arrival by arrival
How late JetBlue on DEN to JFK runs when it is late
JetBlue on DEN to JFK often beats the schedule: 146 of 507 completed flights, 29%, arrived 15 minutes or more early. The 166 late arrivals split 42 under half an hour, 52 between 30 and 60 minutes, and 72 an hour or more.
- 15+ min early146 flights28.8%
- Within 15 min195 flights38.5%
- 15–29 min late42 flights8.3%
- 30–59 min late52 flights10.3%
- 1–2 hours late44 flights8.7%
- 2+ hours late28 flights5.5%
Scale runs 0% to 100%.
Share of 507 completed flights by arrival against schedule.
45 of 188 late departures made up the time and arrived on time, 24% of them. 23 flights left on time and still arrived late.
The worst days
Worst days for JetBlue on DEN to JFK
The latest arrival of the period was on 28 December 2025, 26 hours 2 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 28 December 2025 | 26 hours 2 minutes | Carrier |
| 8 November 2025 | 22 hours 35 minutes | Carrier |
| 12 March 2026 | 22 hours 10 minutes | Carrier |
| 12 December 2025 | 14 hours 41 minutes | Carrier |
| 6 July 2026 | 14 hours 1 minute | Carrier |
Delay causes
Why JetBlue runs late on this route
Carrier accounts for 49% of the 18,000 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Carrier
- 35%Late-arriving aircraft
- 16%National Airspace System
- 0%Extreme weather
35% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 18,000 reported delay minutes here, that single category outweighs weather by 35 to one. The split is drawn from 17,530 reported delay minutes.
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 8,532 of the 18,000 delay minutes reported here.
Cancellations run at 6.06%, against 1.89% nationally. That is roughly one flight in fifteen 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 stage length
What a delay here costs
14.2% 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 1,626 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 67.9% on time across 545 flights, within half a point 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. 545 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 DEN to JFK
Put together: the delay figures matter less here than the 6.06% cancellation rate. A late arrival costs you close to two hours; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 507 completed flights over 12 months sit behind that.
Related
Where to go next
- DEN to JFK, every carrier
- JetBlue on JFK to DEN, the return leg
- Delta Air Lines on DEN to JFK87.7%
- JetBlue Airways network-wide record
- Denver International (DEN) delay statistics
- John F. Kennedy International (JFK) delay statistics
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
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.