Flight number record
YX 5814
Republic Airways · Boston to New York
- Route
- BOS → JFK
- Departs
- 17:05
- Flights
- 255
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5814, 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 5814 draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is about an hour behind schedule. Build slack into anything you connect to. That rests on 255 flights, with a median arrival 1 minute late.
The national on-time rate over the same period is 77.3%, so YX 5814 runs 14 points behind the country as a whole. Across a thousand flights that is about 141 extra late arrivals.
Key figures
On time
63.2%
Arrivals under 15 minutes late, of 228 completed flights
Avg delay
66 min
Across delayed arrivals only, not all flights
Cancelled
10.59%
National rate is 1.89%
1 hour+ late
14.5%
National rate is 8.3%
These figures cover 255 flights between September 2025 and August 2026. Beyond the headline rate, 14.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When YX 5814 flies
YX 5814 flies BOS to JFK without a single fixed slot. Its most common scheduled departure was 17:05, used on 168 of 255 flights, with 17:15 (36 flights) next.
- Departs 17:05168 flights65.9%
- Departs 17:1536 flights14.1%
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 17:05 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and YX 5814 runs 5 points worse at 63.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
YX 5814 next to BOS to JFK
Every carrier on BOS to JFK combined arrived on time 74.2% of the time across 5,614 flights, so YX 5814 is 11 points behind it. Republic flew 2,857 flights on the same city pair under all its flight numbers, including this one, and those ran 74.6% on time. Across its whole network Republic Airways managed 78.1%, which this flight trails by 15 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5814thin sample | 255 | 63.2% | 66 min | 10.59% | D− |
| All Republic Airways on BOS–JFK | 2,857 | 74.6% | 64 min | 5.99% | C− |
| All carriers on BOS–JFK | 5,614 | 74.2% | 71 min | 5.58% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5814 quarter by quarter
YX 5814 did not run the same all year. Its best quarter was Jan–Mar 2026 at 72.3% on time and its weakest Jul–Sep 2026 at 57.4%, a swing of 15 points on roughly 85 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.
- Oct–Dec 202512 flights—
- Jan–Mar 202690 flights72.3%
- Apr–Jun 202691 flights58.6%
- Jul–Sep 202662 flights57.4%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, YX 5814 did best on Wednesday at 73.5% on time and worst on Thursday at 50.0%. Each day rests on about 36 flights, so a gap of 24 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 5814 runs when it is late
The 84 late arrivals split 17 under half an hour, 34 between 30 and 60 minutes, and 33 an hour or more.
- 15+ min early55 flights24.1%
- Within 15 min89 flights39.0%
- 15–29 min late17 flights7.5%
- 30–59 min late34 flights14.9%
- 1–2 hours late21 flights9.2%
- 2+ hours late12 flights5.3%
Scale runs 0% to 100%.
Share of 228 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 76 departures that left 15 minutes late or more, only 8 made it up before arrival. In the other direction, 16 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at JFK.
The worst days
Worst days for YX 5814
The latest arrival of the period was on 7 February 2026, 3 hours 52 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On four of the five worst days the largest share was filed as national airspace system delay.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 February 2026 | 3 hours 52 minutes | Late-arriving aircraft |
| 23 June 2026 | 3 hours 50 minutes | National Airspace System |
| 15 July 2026 | 3 hours 19 minutes | National Airspace System |
| 8 August 2026 | 3 hours 13 minutes | National Airspace System |
| 4 April 2026 | 3 hours | National Airspace System |
Delay causes
Why YX 5814 runs late
National Airspace System accounts for 48% of the 5,570 delay minutes carriers reported here, and the remaining four split what is left.
- 48%National Airspace System
- 36%Late-arriving aircraft
- 15%Carrier
- 1%Security
36% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 5,570 reported delay minutes here, that single category outweighs weather by 36 to one. The split is drawn from 5,570 delay minutes reported on YX 5814.
Cancellations run at 10.59%, against 1.89% nationally. That is about one flight in nine 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
14.5% 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.
The same number turns up on six other city pairs in the data, including LGA to BUF (30), BUF to LGA (30) and JFK to JAX (2), but none flew often enough under YX 5814 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to BOS to JFK only.
One caution: this is a thin sample. 255 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 5814
For a booking, the cancellation rate is the figure to plan around on YX 5814: 10.59% of its 255 scheduled flights did not operate. A late arrival costs about an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- BOS to JFK, every carrier and departure
- JFK to BOS, the return direction
- Republic Airways 5720 on the same route85.1%
- JetBlue Airways 717 on the same route60.3%
- Delta Air Lines 2611 on the same route92.3%
- Republic Airways 5808 on the same route73.8%
- JetBlue Airways 1017 on the same route64.9%
- JetBlue Airways 517 on the same route66.0%
- Boston Logan International (BOS) delay statistics
- John F. Kennedy International (JFK) 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
- Why the first flight of the morning is statistically safest
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.