Flight number record
YX 5717
Republic Airways · New York to Washington
- Route
- LGA → DCA
- Departs
- 17:20
- Flights
- 352
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 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 352 flights, with a median arrival 2 minutes late.
The national on-time rate over the same period is 77.6%, so YX 5717 runs 17 points behind the country as a whole. Across a thousand flights that is about 171 extra late arrivals.
Key figures
On time
60.5%
Arrivals under 15 minutes late, of 319 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
9.09%
National rate is 1.81%
1 hour+ late
12.2%
National rate is 8.1%
These figures cover 352 flights between July 2025 and June 2026. Beyond the headline rate, 12.2% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
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 165 of 352 flights, with 17:10 (52 flights) and 17:15 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 17:20165 flights46.9%
- Departs 17:1052 flights14.8%
- Departs 17:1541 flights11.6%
Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.
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 68.2%, and YX 5717 runs 8 points worse at 60.5%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Against the route
YX 5717 next to LGA to DCA
Every carrier on LGA to DCA combined arrived on time 68.3% of the time across 4,830 flights, so YX 5717 is 8 points behind it. Republic flew 4,751 flights on the same city pair under all its flight numbers, including this one, and those ran 68.4% on time. Across its whole network Republic Airways managed 78.5%, which this flight trails by 18 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5717thin sample | 352 | 60.5% | 58 min | 9.09% | D− |
| All Republic Airways on LGA–DCA | 4,751 | 68.4% | 62 min | 5.51% | C− |
| All carriers on LGA–DCA | 4,830 | 68.3% | 62 min | 5.45% | C− |
| Republic Airways, whole network | 361,482 | 78.5% | 72 min | 4.08% | B− |
Across the year
YX 5717 quarter by quarter
YX 5717 did not run the same all year. Its best quarter was Jul–Sep 2025 at 71.1% on time and its weakest Jan–Mar 2026 at 45.6%, a swing of 25 points on roughly 88 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 202592 flights71.1%
- Oct–Dec 202588 flights69.5%
- Jan–Mar 202689 flights45.6%
- Apr–Jun 202683 flights54.7%
Scale runs 35% to 75%. Rows with fewer than 30 flights show a dash.
By weekday, YX 5717 did best on Saturday at 83.3% on time and worst on Thursday at 47.8%. Each day rests on about 50 flights, so a gap of 36 points is worth noticing but could still narrow in another year.
Delay causes
Why YX 5717 runs late
One category carries most of the weight here. National Airspace System accounts for 47% of the 7,320 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 47%National Airspace System
- 27%Late-arriving aircraft
- 26%Carrier
47% 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 3,436 minutes out of 7,320, against a national NAS share of 21%. The split is drawn from 7,320 delay minutes reported on YX 5717.
Cancellations run at 9.09%, against 1.81% nationally. That is roughly one flight in twelve 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.2% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum 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 (140), 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. 352 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: 9.09% of its 352 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 route61.5%
- Republic Airways 5749 on the same route79.8%
- Republic Airways 5770 on the same route89.4%
- Republic Airways 4371 on the same route68.2%
- Republic Airways 5751 on the same route60.8%
- 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.