Carrier performance at one airport
YX→JFK
Republic Airways at John F. Kennedy International
- Departures
- 14,963
- Period
- September 2025 to August 2026
- Routes
- 20
- Rank here
- #2 of 6
Republic Airways at New York carries a cancellation problem, not just a delay problem: 5.4% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 14,963 flights, of which American Airlines flew 15,348 at 77.8% on time.
Measured against the airport rather than the country, Republic Airways runs 2 points ahead of 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
76.5%
14,127 completed departures
Avg delay
76 min
Across delayed flights only
Cancelled
5.38%
At JFK, this carrier only
Rank here
#2
Of 6 carriers clearing the floor at JFK
These figures cover 15,000 flights between September 2025 and August 2026. Beyond the headline rate, 9.6% 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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 15,348 | 77.8% | 97 min | 2.93% | B |
| Republic Airways (this page) | 14,963 | 76.5% | 76 min | 5.38% | B− |
| Delta Air Lines | 30,645 | 76.5% | 71 min | 3.01% | B− |
| Alaska Airlines | 4,032 | 71.5% | 68 min | 2.80% | C |
| JetBlue Airways | 35,630 | 70.7% | 75 min | 4.90% | C− |
| Frontier Airlines | 1,971 | 69.5% | 91 min | 2.33% | 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 Republic Airways flies from JFK
Republic Airways operates 20 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.
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| JFK to BOS · Boston | 2,858 | 75.8% | 77 min | 5.14% | B− |
| JFK to DCA · Washington | 2,073 | 69.1% | 69 min | 6.22% | C− |
| JFK to CMH · Columbus | 1,569 | 77.7% | 81 min | 5.42% | B− |
| JFK to RDU · Raleigh | 1,376 | 75.0% | 66 min | 6.32% | B− |
| JFK to PIT · Pittsburgh | 1,310 | 76.3% | 83 min | 6.18% | B− |
| JFK to IND · Indianapolis | 973 | 76.0% | 87 min | 5.55% | B− |
| JFK to BNA · Nashville | 865 | 76.5% | 77 min | 4.05% | B− |
| JFK to ORD · Chicago | 830 | 76.3% | 77 min | 5.78% | B− |
| JFK to ORF · Norfolk | 731 | 82.4% | 72 min | 6.02% | B− |
| JFK to CVG · Cincinnati | 680 | 80.9% | 63 min | 3.82% | B− |
| JFK to CLE · Cleveland | 548 | 80.9% | 73 min | 4.20% | B− |
| JFK to IAD · Washingtonthin sample | 177 | 83.9% | 75 min | 1.69% | B |
| JFK to SAV · Savannahthin sample | 154 | 78.1% | 95 min | 1.95% | B |
| JFK to CHS · Charlestonthin sample | 151 | 80.3% | 64 min | 9.27% | B− |
| JFK to CLT · Charlottethin sample | 139 | 87.7% | 97 min | 0.72% | A+ |
| JFK to SYR · Syracusethin sample | 94 | 81.7% | 67 min | 1.06% | B |
| JFK to RIC · Richmondthin sample | 70 | 81.5% | 92 min | 7.14% | B− |
| JFK to PWM · Portlandthin sample | 62 | 92.9% | 125 min | 9.68% | A− |
| JFK to JAX · Jacksonvillethin sample | 40 | 90.0% | 74 min | 0.00% | A+ |
| JFK to MEM · Memphisthin sample | 36 | 77.1% | 56 min | 2.78% | B |
Flight by flight
Republic Airways flight numbers from JFK
12 Republic Airways flight numbers leaving JFK flew their main route often enough to have a record of their own. Grouped by destination.
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 21 points, against 8 points between the best and worst carrier.
- 5am–8am704 flights88.3%
- 8am–11am3,107 flights83.9%
- 11am–2pm2,620 flights84.0%
- 2pm–5pm3,886 flights71.7%
- 5pm–8pm2,560 flights67.8%
- 8pm–5am2,086 flights70.5%
Scale runs 60% to 95%.
Book the early departure. Flights leaving between 5am–8am arrive on time 88.3% of the time, against 67.8% for the evening window. That is 21 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 3,886 flights scheduled in it.
Across the year
Seasonal pattern
August is the worst month at 69.0% on time, 15 points below May, the best at 83.6%. 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. September was the busiest month here, with 1,412 flights.
Delay causes
What holds this operation up
- 42%Late-arriving aircraft
- 35%National Airspace System
- 20%Carrier
- 3%Extreme weather
- 0%Security
42% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 251,000 reported delay minutes here, that single category outweighs weather by 12 to one. The split is drawn from 250,680 reported delay minutes.
Cancellations run at 5.38%, 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.
9.6% 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.
14,963 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 5.38% 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. 14,127 completed flights over 12 months sit behind that.
Common questions
Republic Airways at JFK
How often is Republic Airways at JFK delayed?
About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 23.5% of the 14,963 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 Republic 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 Republic Airways at JFK?
The 5am–8am departure window is the strongest at 88.3% on time. The 5pm–8pm window is the weakest at 67.8%, 21 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 Republic Airways at JFK?
August is the weakest month at 69.0% on time, compared with 83.6% in May. Across the year that is 15 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.