Flight number record
YX 5699
Republic Airways · New York to Washington
- Route
- JFK → DCA
- Departs
- 14:59
- Flights
- 348
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5699, 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 5699 earns a D−, which is as low as this site's scale goes for a reason. Only 56.0% of flights arrive inside the 15-minute window, 21 points worse than the national rate of 77.3%. Late arrivals average a little over an hour. Treat any tight connection here as a coin flip. That rests on 348 flights, with a median arrival 11 minutes late.
The national on-time rate over the same period is 77.3%, so YX 5699 runs 21 points behind the country as a whole. Across a thousand flights that is about 213 extra late arrivals.
Key figures
On time
56.0%
Arrivals under 15 minutes late, of 325 completed flights
Avg delay
77 min
Across delayed arrivals only, not all flights
Cancelled
6.61%
National rate is 1.89%
1 hour+ late
16.9%
National rate is 8.3%
These figures cover 348 flights between September 2025 and August 2026. Beyond the headline rate, 16.9% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When YX 5699 flies
YX 5699 flies JFK to DCA without a single fixed slot. Its most common scheduled departure was 14:59, used on 62 of 348 flights, with 15:20 (56 flights) and 15:30 (36 flights) next.
- Departs 14:5962 flights17.8%
- Departs 15:2056 flights16.1%
- Departs 15:3036 flights10.3%
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 14:59 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 71.9%, and YX 5699 runs 16 points worse at 56.0%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
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Against the route
YX 5699 next to JFK to DCA
Every carrier on JFK to DCA combined arrived on time 66.2% of the time across 2,518 flights, so YX 5699 is 10 points behind it. Republic flew 2,073 flights on the same city pair under all its flight numbers, including this one, and those ran 69.1% on time. Across its whole network Republic Airways managed 78.1%, which this flight trails by 22 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5699thin sample | 348 | 56.0% | 77 min | 6.61% | D− |
| All Republic Airways on JFK–DCA | 2,073 | 69.1% | 69 min | 6.22% | C− |
| All carriers on JFK–DCA | 2,518 | 66.2% | 72 min | 6.39% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5699 quarter by quarter
YX 5699 did not run the same all year. Its best quarter was Oct–Dec 2025 at 75.3% on time and its weakest Jul–Sep 2026 at 32.7%, a swing of 43 points on roughly 87 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 flights—
- Oct–Dec 202580 flights75.3%
- Jan–Mar 202686 flights38.8%
- Apr–Jun 202691 flights58.6%
- Jul–Sep 202661 flights32.7%
Scale runs 25% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, YX 5699 did best on Saturday at 73.9% on time and worst on Sunday at 38.6%. Each day rests on about 50 flights, so a gap of 35 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 5699 runs when it is late
The 143 late arrivals split 40 under half an hour, 48 between 30 and 60 minutes, and 55 an hour or more.
- 15+ min early56 flights17.2%
- Within 15 min126 flights38.8%
- 15–29 min late40 flights12.3%
- 30–59 min late48 flights14.8%
- 1–2 hours late36 flights11.1%
- 2+ hours late19 flights5.8%
Scale runs 0% to 100%.
Share of 325 completed flights by arrival against schedule.
17 of 98 late departures made up the time and arrived on time, 17% of them. In the other direction, 62 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 DCA.
The worst days
Worst days for YX 5699
The latest arrival of the period was on 13 March 2026, 16 hours 40 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The five worst days are spread across March, August, July and January, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 13 March 2026 | 16 hours 40 minutes | National Airspace System |
| 28 August 2026 | 8 hours 53 minutes | Carrier |
| 11 July 2026 | 5 hours 30 minutes | National Airspace System |
| 30 January 2026 | 5 hours 26 minutes | Carrier |
| 2 August 2026 | 5 hours 21 minutes | Late-arriving aircraft |
Delay causes
Why YX 5699 runs late
National Airspace System accounts for 60% of the 11,000 delay minutes carriers reported here, and the remaining four split what is left.
- 60%National Airspace System
- 23%Carrier
- 17%Late-arriving aircraft
- 0%Extreme weather
60% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 6,554 minutes out of 11,000, against a national NAS share of 21%. The split is drawn from 10,953 delay minutes reported on YX 5699.
Cancellations run at 6.61%, against 1.89% nationally. That is about 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 routes
What a delay on this flight costs
16.9% 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 one other city pair in the data, including DCA to JFK (16), but none flew often enough under YX 5699 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to JFK to DCA only.
One caution: this is a thin sample. 348 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 5699
For a booking, the cancellation rate is the figure to plan around on YX 5699: 6.61% of its 348 scheduled flights did not operate. A late arrival costs a little over an hour, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- JFK to DCA, every carrier and departure
- DCA to JFK, the return direction
- Republic Airways 4538 on the same route78.1%
- John F. Kennedy International (JFK) delay statistics
- Ronald Reagan Washington National (DCA) 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.