Flight number record
YX 3719
Republic Airways · Newark to St. Louis
- Route
- EWR → STL
- Departs
- 15:00
- Flights
- 266
- Period
- July 2025 to June 2026
Historical statistics for July 2025 to June 2026, not live status. For today’s YX 3719, 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 3719 earns an A−. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 11 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 266 flights, with a median arrival 15 minutes early.
Set against the rest of the country, YX 3719's record is 11 points better than the US average of 77.6%. That gap is worth roughly 108 fewer late arrivals for every thousand flights.
Key figures
On time
88.4%
Arrivals under 15 minutes late, of 250 completed flights
Avg delay
71 min
Across delayed arrivals only, not all flights
Cancelled
6.02%
National rate is 1.81%
1 hour+ late
4.4%
National rate is 8.1%
These figures cover 266 flights between July 2025 and June 2026. The median arrival is 15 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Schedule
When YX 3719 flies
YX 3719 flies EWR to STL without a single fixed slot. Its most common scheduled departure was 15:00, used on 58 of 266 flights, with 14:25 (37 flights) and 14:55 (37 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.
- Departs 15:0058 flights21.8%
- Departs 14:2537 flights13.9%
- Departs 14:5537 flights13.9%
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 15:00 departure sits in the 2pm–5pm window. Across every US flight scheduled in that window the on-time rate is 72.4%, and YX 3719 runs 16 points better at 88.4%. Midday slots inherit some of the morning's delays without yet carrying the full weight of the evening's.
Against the route
YX 3719 next to EWR to STL
Every carrier on EWR to STL combined arrived on time 84.6% of the time across 1,074 flights, so YX 3719 is 4 points ahead of it. Republic flew 946 flights on the same city pair under all its flight numbers, including this one, and those ran 86.4% on time. Across its whole network Republic Airways managed 78.5%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 3719thin sample | 266 | 88.4% | 71 min | 6.02% | A− |
| All Republic Airways on EWR–STL | 946 | 86.4% | 69 min | 5.60% | A− |
| All carriers on EWR–STL | 1,074 | 84.6% | 69 min | 5.03% | B− |
| Republic Airways, whole network | 361,482 | 78.5% | 72 min | 4.08% | B− |
Across the year
YX 3719 quarter by quarter
YX 3719 did not run the same all year. Its best quarter was Apr–Jun 2026 at 94.5% on time and its weakest Jul–Sep 2025 at 84.1%, a swing of 10 points on roughly 67 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 202586 flights84.1%
- Oct–Dec 202546 flights85.4%
- Jan–Mar 202678 flights90.3%
- Apr–Jun 202656 flights94.5%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, YX 3719 ranged from 84.2% on Tuesday to 95.0% on Wednesday. With about 38 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Delay causes
Why YX 3719 runs late
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,046 reported delay minutes.
- 38%Late-arriving aircraft
- 33%National Airspace System
- 29%Carrier
38% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 2,046 reported delay minutes here, that single category outweighs weather by 38 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 2,046 delay minutes reported on YX 3719.
Cancellations run at 6.02%, against 1.81% nationally. That is roughly 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
Badly late arrivals are rare here: only 4.4% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 872 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The same number turns up on seven other city pairs in the data, including SYR to EWR (15), IAD to CHS (14) and DTW to ORD (14), but none flew often enough under YX 3719 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to EWR to STL only.
One caution: this is a thin sample. 266 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 3719
For a booking, the cancellation rate is the figure to plan around on YX 3719: 6.02% of its 266 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
- EWR to STL, every carrier and departure
- STL to EWR, the return direction
- Republic Airways 3630 on the same route91.6%
- Newark Liberty International (EWR) delay statistics
- St. Louis Lambert International (STL) 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, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.