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DelayAtlas

Carrier performance at one airport

B6→JFK

JetBlue Airways at John F. Kennedy International

Departures
35,630
Period
September 2025 to August 2026
Routes
25
Rank here
#5 of 6
C−GRADE

JetBlue Airways at New York carries a cancellation problem, not just a delay problem: 4.9% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 35,630 flights, of which American Airlines flew 15,348 at 77.8% on time.

Measured against the airport rather than the country, JetBlue Airways runs 4 points behind the 74.3% weighted average across all carriers at JFK. That is the comparison worth making: every operator here works the same runways, the same airspace and the same weather.

Key figures

On time

70.7%

33,784 completed departures

Avg delay

75 min

Across delayed flights only

Cancelled

4.90%

At JFK, this carrier only

Rank here

#5

Of 6 carriers clearing the floor at JFK

These figures cover 36,000 flights between September 2025 and August 2026. Beyond the headline rate, 12.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Against the competition

Every carrier at JFK, ranked

The choice of carrier is not cosmetic here. American Airlines arrives on time 77.8% of the time; Frontier Airlines manages 69.5%. Sample sizes sit next to every figure, because a two-point gap across 1,971 flights means less than a ten-point one.

On-time performance of all carriers departing JFK
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlines15,34877.8%97 min2.93%B
Republic Airways14,96376.5%76 min5.38%B−
Delta Air Lines30,64576.5%71 min3.01%B−
Alaska Airlines4,03271.5%68 min2.80%C
JetBlue Airways (this page)35,63070.7%75 min4.90%C−
Frontier Airlines1,97169.5%91 min2.33%C

Republic Airways cancels 5.4% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.

Route by route

Where JetBlue Airways flies from JFK

JetBlue Airways operates 25 routes out of JFK with enough volume to report. Route records inside one carrier at one airport still spread widely, because a short shuttle and a transcontinental have very different exposure to a late inbound.

JetBlue Airways routes from JFK
RouteFlightsOn timeAvg delayCancelledGrade
JFK to LAX · Los Angeles3,48072.5%73 min3.19%C−
JFK to MCO · Orlando2,59271.6%84 min4.44%C−
JFK to BOS · Boston2,38968.3%80 min5.11%C−
JFK to FLL · Fort Lauderdale2,29369.4%71 min5.36%C−
JFK to SJU · San Juan2,24567.7%78 min4.14%C−
JFK to SFO · San Francisco1,95573.4%73 min2.86%C
JFK to PBI · West Palm Beach1,38371.9%70 min4.56%C−
JFK to LAS · Las Vegas1,38280.6%67 min3.33%B−
JFK to BUF · Buffalo1,22672.0%84 min6.53%C−
JFK to TPA · Tampa1,11973.1%79 min5.81%C−
JFK to ATL · Atlanta1,11366.5%77 min5.48%C−
JFK to RDU · Raleigh95968.6%85 min6.78%C−
JFK to JAX · Jacksonville89173.4%73 min4.94%C−
JFK to RSW · Fort Myers80973.2%75 min4.82%C−
JFK to SAN · San Diego72483.2%60 min3.59%B−
JFK to CHS · Charleston63872.8%70 min5.80%C−
JFK to ORD · Chicago63464.0%85 min7.57%D−
JFK to ROC · Rochester60669.3%69 min5.78%C−
JFK to BNA · Nashville54770.8%64 min6.95%C−
JFK to DEN · Denver54567.9%63 min5.14%C−
JFK to PHX · Phoenix53172.8%63 min4.71%C−
JFK to SAV · Savannah48673.4%74 min6.79%C−
JFK to PIT · Pittsburgh45466.2%75 min5.95%C−
JFK to DTW · Detroit44567.4%64 min6.07%C−
JFK to DCA · Washington44552.7%83 min7.19%F−

Flight by flight

JetBlue Airways flight numbers from JFK

Departure window

Best time of day for this operation

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 26 points, against 8 points between the best and worst carrier.

  • 5am–8am5,857 flights86.3%
  • 8am–11am6,558 flights77.7%
  • 11am–2pm4,290 flights73.7%
  • 2pm–5pm5,348 flights65.6%
  • 5pm–8pm5,844 flights62.4%
  • 8pm–5am7,733 flights60.8%

Scale runs 50% to 90%.

The 8pm–5am window is where this operation falls apart: 60.8% on time, against 86.3% for the 5am–8am 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 8pm–5am window is the busiest, with 7,733 flights scheduled in it.

Across the year

Seasonal pattern

On-time rate by calendar month70J71F74M79A83M71J58J57A79S71O74N62D
Darker means more delays. Figures are on-time percentages.May best, August worst

August is the worst month at 57.4% on time, 25 points below May, the best at 82.7%. 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 3,472 flights.

Delay causes

What holds this operation up

  • Late-arriving aircraft
    42%
  • Carrier
    29%
  • National Airspace System
    25%
  • Extreme weather
    4%
  • Security
    0%

42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 741,000 reported delay minutes here, that single category outweighs weather by 11 to one. The split is drawn from 740,767 reported delay minutes.

Cancellations run at 4.90%, against 1.89% nationally. That is about one flight in twenty 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.

12.6% 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.

35,630 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.

Put together: the delay figures matter less here than the 4.90% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 33,784 completed flights over 12 months sit behind that.

Common questions

JetBlue Airways at JFK

How often is JetBlue Airways at JFK delayed?

Roughly one flight in three arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 29.3% of the 35,630 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.

Which airline is most reliable on JetBlue Airways at JFK?

American Airlines leads at 77.8% on time across 15,348 flights. Frontier Airlines is at the other end on 69.5%, a gap of 8 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on JetBlue Airways at JFK?

The 5am–8am departure window is the strongest at 86.3% on time. The 8pm–5am window is the weakest at 60.8%, 26 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are August delays on JetBlue Airways at JFK?

August is the weakest month at 57.4% on time, compared with 82.7% in May. Across the year that is 25 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

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.