Flight number record
YX 4395
Republic Airways · New York to Des Moines
- Route
- LGA → DSM
- Departs
- 17:40
- Flights
- 260
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 4395, 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 4395 draws a D−. Roughly one flight in three arrives at least 15 minutes late, and the typical late arrival is a little over an hour behind schedule. Build slack into anything you connect to. That rests on 260 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.3%, so YX 4395 runs 14 points behind the country as a whole. Across a thousand flights that is about 142 extra late arrivals.
Key figures
On time
63.1%
Arrivals under 15 minutes late, of 241 completed flights
Avg delay
69 min
Across delayed arrivals only, not all flights
Cancelled
5.00%
National rate is 1.89%
1 hour+ late
16.6%
National rate is 8.3%
These figures cover 260 flights between September 2025 and August 2026. Beyond the headline rate, 16.6% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When YX 4395 flies
YX 4395 flies LGA to DSM without a single fixed slot. Its most common scheduled departure was 17:40, used on 52 of 260 flights, with 19:55 (37 flights) and 18:16 (33 flights) next.
- Departs 17:4052 flights20.0%
- Departs 19:5537 flights14.2%
- Departs 18:1633 flights12.7%
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 17:40 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and YX 4395 runs 5 points worse at 63.1%. 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 4395 next to LGA to DSM
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 4395thin sample | 260 | 63.1% | 69 min | 5.00% | D− |
| All Republic Airways on LGA–DSMthin sample | 260 | 63.1% | 69 min | 5.00% | D− |
| All carriers on LGA–DSMthin sample | 260 | 63.1% | 69 min | 5.00% | D− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 4395 quarter by quarter
YX 4395 did not run the same all year. Its best quarter was Apr–Jun 2026 at 72.7% on time and its weakest Oct–Dec 2025 at 50.0%, a swing of 23 points on roughly 65 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 202522 flights—
- Oct–Dec 202554 flights50.0%
- Jan–Mar 202661 flights70.2%
- Apr–Jun 202670 flights72.7%
- Jul–Sep 202653 flights51.2%
Scale runs 40% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, YX 4395 did best on Tuesday at 75.0% on time and worst on Thursday at 53.7%. Each day rests on about 37 flights, so a gap of 21 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 4395 runs when it is late
YX 4395 often beats the schedule: 75 of 241 completed flights, 31%, arrived 15 minutes or more early. The 89 late arrivals split 22 under half an hour, 27 between 30 and 60 minutes, and 40 an hour or more.
- 15+ min early75 flights31.1%
- Within 15 min77 flights32.0%
- 15–29 min late22 flights9.1%
- 30–59 min late27 flights11.2%
- 1–2 hours late29 flights12.0%
- 2+ hours late11 flights4.6%
Scale runs 0% to 100%.
Share of 241 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 69 departures that left 15 minutes late or more, only 7 made it up before arrival. In the other direction, 27 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 DSM.
The worst days
Worst days for YX 4395
The latest arrival of the period was on 6 August 2026, 5 hours 10 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 August 2026 | 5 hours 10 minutes | Late-arriving aircraft |
| 19 May 2026 | 3 hours 56 minutes | Extreme weather |
| 15 July 2026 | 3 hours 30 minutes | Late-arriving aircraft |
| 13 October 2025 | 3 hours 13 minutes | Late-arriving aircraft |
| 29 July 2026 | 2 hours 47 minutes | Late-arriving aircraft |
Delay causes
Why YX 4395 runs late
Late-arriving aircraft accounts for 55% of the 6,106 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Late-arriving aircraft
- 31%National Airspace System
- 9%Extreme weather
- 5%Carrier
55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,106 reported delay minutes here, that single category outweighs weather by 6 to one. The split is drawn from 6,106 delay minutes reported on YX 4395.
Cancellations run at 5.00%, against 1.89% nationally. That is about one flight in twenty 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
16.6% 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 1,031 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The same number turns up on seven other city pairs in the data, including LGA to BTV (41), BOS to MYR (12) and MIA to OKC (11), but none flew often enough under YX 4395 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to DSM only.
One caution: this is a thin sample. 260 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 4395
For a booking, the cancellation rate is the figure to plan around on YX 4395: 5.00% of its 260 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
- LaGuardia (LGA) 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.