Flight number record
YX 5717
Republic Airways · New York to Washington
- Route
- LGA → DCA
- Departs
- 17:20
- Flights
- 343
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5717, 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 5717 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 343 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.3%, so YX 5717 runs 17 points behind the country as a whole. Across a thousand flights that is about 172 extra late arrivals.
Key figures
On time
60.1%
Arrivals under 15 minutes late, of 303 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
11.37%
National rate is 1.89%
1 hour+ late
12.5%
National rate is 8.3%
These figures cover 343 flights between September 2025 and August 2026. Beyond the headline rate, 12.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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 5717 flies
YX 5717 flies LGA to DCA without a single fixed slot. Its most common scheduled departure was 17:20, used on 150 of 343 flights, with 17:10 (52 flights) and 17:15 (48 flights) next.
- Departs 17:20150 flights43.7%
- Departs 17:1052 flights15.2%
- Departs 17:1548 flights14.0%
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 17:20 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and YX 5717 runs 8 points worse at 60.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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 5717 next to LGA to DCA
Every carrier on LGA to DCA combined arrived on time 65.5% of the time across 4,840 flights, so YX 5717 is 5 points behind it. Republic flew 4,699 flights on the same city pair under all its flight numbers, including this one, and those ran 65.7% on time. Across its whole network Republic Airways managed 78.1%, which this flight trails by 18 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5717thin sample | 343 | 60.1% | 56 min | 11.37% | D− |
| All Republic Airways on LGA–DCA | 4,699 | 65.7% | 61 min | 5.83% | C− |
| All carriers on LGA–DCA | 4,840 | 65.5% | 62 min | 5.76% | C− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5717 quarter by quarter
YX 5717 did not run the same all year. Its best quarter was Oct–Dec 2025 at 69.5% on time and its weakest Jan–Mar 2026 at 45.6%, a swing of 24 points on roughly 86 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 202588 flights69.5%
- Jan–Mar 202689 flights45.6%
- Apr–Jun 202683 flights54.7%
- Jul–Sep 202653 flights60.5%
Scale runs 35% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, YX 5717 did best on Saturday at 87.9% on time and worst on Wednesday at 51.1%. Each day rests on about 49 flights, so a gap of 37 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 5717 runs when it is late
YX 5717 often beats the schedule: 99 of 303 completed flights, 33%, arrived 15 minutes or more early. The 121 late arrivals split 42 under half an hour, 41 between 30 and 60 minutes, and 38 an hour or more.
- 15+ min early99 flights32.7%
- Within 15 min83 flights27.4%
- 15–29 min late42 flights13.9%
- 30–59 min late41 flights13.5%
- 1–2 hours late27 flights8.9%
- 2+ hours late11 flights3.6%
Scale runs 0% to 100%.
Share of 303 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 78 departures that left 15 minutes late or more, only 6 made it up before arrival. In the other direction, 49 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 5717
The latest arrival of the period was on 16 August 2026, 4 hours 42 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 16 August 2026 | 4 hours 42 minutes | National Airspace System |
| 4 September 2025 | 4 hours 2 minutes | National Airspace System |
| 10 November 2025 | 3 hours 59 minutes | National Airspace System |
| 22 April 2026 | 3 hours 28 minutes | Carrier |
| 4 November 2025 | 3 hours | Carrier |
Delay causes
Why YX 5717 runs late
National Airspace System accounts for 51% of the 6,726 delay minutes carriers reported here, and the remaining four split what is left.
- 51%National Airspace System
- 28%Carrier
- 20%Late-arriving aircraft
- 0%Extreme weather
51% 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 3,446 minutes out of 6,726, against a national NAS share of 21%. The split is drawn from 6,726 delay minutes reported on YX 5717.
Cancellations run at 11.37%, 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
12.5% 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 one other city pair in the data, including DCA to LGA (122), but none flew often enough under YX 5717 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to DCA only.
One caution: this is a thin sample. 343 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 5717
For a booking, the cancellation rate is the figure to plan around on YX 5717: 11.37% of its 343 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
- LGA to DCA, every carrier and departure
- DCA to LGA, the return direction
- Republic Airways 5709 on the same route59.5%
- Republic Airways 5749 on the same route73.8%
- Republic Airways 5770 on the same route87.6%
- Republic Airways 5742 on the same route82.8%
- LaGuardia (LGA) 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
- How often a connection fails at the major US hubs
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.