Flight number record
YX 5765
Republic Airways · New York to Boston
- Route
- JFK → BOS
- Departs
- 06:00
- Flights
- 347
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5765, check with Republic Airways. Republic Airways flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.
YX 5765 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 347 flights, with a median arrival 12 minutes early.
Set against the rest of the country, YX 5765's record is 14 points better than the US average of 77.3%. That gap is worth roughly 138 fewer late arrivals for every thousand flights.
Key figures
On time
91.1%
Arrivals under 15 minutes late, of 337 completed flights
Avg delay
88 min
Across delayed arrivals only, not all flights
Cancelled
2.88%
National rate is 1.89%
1 hour+ late
4.2%
National rate is 8.3%
These figures cover 347 flights between September 2025 and August 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.
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.
Schedule
When YX 5765 flies
YX 5765 flies JFK to BOS without a single fixed slot. Its most common scheduled departure was 06:00, used on 239 of 347 flights.
- Departs 06:00239 flights68.9%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 5765 runs level with that at 91.1%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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.
Against the route
YX 5765 next to JFK to BOS
Every carrier on JFK to BOS combined arrived on time 72.1% of the time across 5,615 flights, so YX 5765 is 19 points ahead of it. Republic flew 2,858 flights on the same city pair under all its flight numbers, including this one, and those ran 75.8% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 13 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5765thin sample | 347 | 91.1% | 88 min | 2.88% | A |
| All Republic Airways on JFK–BOS | 2,858 | 75.8% | 77 min | 5.14% | B− |
| All carriers on JFK–BOS | 5,615 | 72.1% | 79 min | 5.02% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5765 quarter by quarter
YX 5765 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Jul–Sep 2026 at 86.2%, a swing of 14 points on roughly 69 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202530 flights100.0%
- Oct–Dec 202578 flights91.0%
- Jan–Mar 202686 flights86.2%
- Apr–Jun 202691 flights95.6%
- Jul–Sep 202662 flights86.2%
Scale runs 80% to 100%.
By weekday, YX 5765 ranged from 85.1% on Friday to 93.9% on Thursday. With about 50 flights behind each day, a spread of 9 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late YX 5765 runs when it is late
YX 5765 often beats the schedule: 149 of 337 completed flights, 44%, arrived 15 minutes or more early. The 30 late arrivals split 9 under half an hour, 7 between 30 and 60 minutes, and 14 an hour or more.
- 15+ min early149 flights44.2%
- Within 15 min158 flights46.9%
- 15–29 min late9 flights2.7%
- 30–59 min late7 flights2.1%
- 1–2 hours late10 flights3.0%
- 2+ hours late4 flights1.2%
Scale runs 0% to 100%.
Share of 337 completed flights by arrival against schedule.
6 of 26 late departures made up the time and arrived on time, 23% of them. 10 flights left on time and still arrived late.
The worst days
Worst days for YX 5765
The latest arrival of the period was on 10 July 2026, 11 hours 13 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 10 July 2026 | 11 hours 13 minutes | Late-arriving aircraft |
| 11 July 2026 | 4 hours 59 minutes | Carrier |
| 14 May 2026 | 2 hours 59 minutes | Late-arriving aircraft |
| 13 March 2026 | 2 hours 16 minutes | Carrier |
| 8 August 2026 | 1 hour 49 minutes | Carrier |
Delay causes
Why YX 5765 runs late
Carrier accounts for 46% of the 2,644 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Carrier
- 31%Late-arriving aircraft
- 20%National Airspace System
- 3%Extreme weather
The largest share of delay minutes, 46%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,216 of the 2,644 delay minutes reported here. The split is drawn from 2,644 delay minutes reported on YX 5765.
Cancellations run at 2.88%, against 1.89% nationally. That is roughly 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
Badly late arrivals are rare here: only 4.2% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The same number turns up on one other city pair in the data, including BNA to MCO (14), but none flew often enough under YX 5765 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to JFK to BOS only.
One caution: this is a thin sample. 347 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 YX 5765
For a booking, the cancellation rate is the figure to plan around on YX 5765: 2.88% of its 347 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.
Related
Where to go next
- JFK to BOS, every carrier and departure
- BOS to JFK, the return direction
- Republic Airways 5733 on the same route84.0%
- JetBlue Airways 1118 on the same route62.0%
- Delta Air Lines 2639 on the same route68.2%
- JetBlue Airways 618 on the same route56.0%
- Republic Airways 5798 on the same route60.8%
- JetBlue Airways 418 on the same route74.4%
- John F. Kennedy International (JFK) delay statistics
- Boston Logan International (BOS) delay statistics
- Republic Airways on-time record
- Every Republic Airways flight number with a record
- The most and least reliable flight numbers in the US
- What a cancellation rate actually tells you (and what it hides)
A flight number here means Republic 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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.