Flight number record
YX 3718
Republic Airways · Grand Rapids to Newark
- Route
- GRR → EWR
- Departs
- 06:00
- Flights
- 339
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 3718, 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 3718 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 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs a little over an hour. That rests on 339 flights, with a median arrival 13 minutes early.
Set against the rest of the country, YX 3718's record is 10 points better than the US average of 77.3%. That gap is worth roughly 104 fewer late arrivals for every thousand flights.
Key figures
On time
87.7%
Arrivals under 15 minutes late, of 324 completed flights
Avg delay
79 min
Across delayed arrivals only, not all flights
Cancelled
4.13%
National rate is 1.89%
1 hour+ late
5.2%
National rate is 8.3%
These figures cover 339 flights between September 2025 and August 2026. The median arrival is 13 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.
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Schedule
When YX 3718 flies
YX 3718 flies GRR to EWR without a single fixed slot. Its most common scheduled departure was 06:00, used on 205 of 339 flights, with 06:05 (48 flights) and 06:15 (35 flights) next.
- Departs 06:00205 flights60.5%
- Departs 06:0548 flights14.2%
- Departs 06:1535 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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 3718 runs level with that at 87.7%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
YX 3718 next to GRR to EWR
Every carrier on GRR to EWR combined arrived on time 78.7% of the time across 889 flights, so YX 3718 is 9 points ahead of it. Republic flew 869 flights on the same city pair under all its flight numbers, including this one, and those ran 78.7% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 3718thin sample | 339 | 87.7% | 79 min | 4.13% | A− |
| All Republic Airways on GRR–EWR | 869 | 78.7% | 74 min | 4.72% | B− |
| All carriers on GRR–EWR | 889 | 78.7% | 74 min | 4.61% | B− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 3718 quarter by quarter
YX 3718 did not run the same all year. Its best quarter was Apr–Jun 2026 at 94.4% on time and its weakest Jan–Mar 2026 at 82.7%, a swing of 12 points on roughly 85 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 20256 flights—
- Oct–Dec 202592 flights85.6%
- Jan–Mar 202689 flights82.7%
- Apr–Jun 202691 flights94.4%
- Jul–Sep 202661 flights87.7%
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, YX 3718 ranged from 85.1% on Sunday to 91.5% on Friday. With about 48 flights behind each day, a spread of 6 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late YX 3718 runs when it is late
YX 3718 often beats the schedule: 147 of 324 completed flights, 45%, arrived 15 minutes or more early. The 40 late arrivals split 14 under half an hour, 9 between 30 and 60 minutes, and 17 an hour or more.
- 15+ min early147 flights45.4%
- Within 15 min137 flights42.3%
- 15–29 min late14 flights4.3%
- 30–59 min late9 flights2.8%
- 1–2 hours late10 flights3.1%
- 2+ hours late7 flights2.2%
Scale runs 0% to 100%.
Share of 324 completed flights by arrival against schedule.
6 of 26 late departures made up the time and arrived on time, 23% of them. In the other direction, 20 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 EWR.
The worst days
Worst days for YX 3718
The latest arrival of the period was on 17 April 2026, 6 hours 19 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 17 April 2026 | 6 hours 19 minutes | Late-arriving aircraft |
| 10 July 2026 | 5 hours 19 minutes | Late-arriving aircraft |
| 9 March 2026 | 4 hours 58 minutes | Carrier |
| 15 April 2026 | 2 hours 54 minutes | Late-arriving aircraft |
| 23 May 2026 | 2 hours 43 minutes | Carrier |
Delay causes
Why YX 3718 runs late
Carrier accounts for 48% of the 3,164 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Carrier
- 27%Late-arriving aircraft
- 25%National Airspace System
The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 1,530 of the 3,164 delay minutes reported here. The split is drawn from 3,164 delay minutes reported on YX 3718.
Cancellations run at 4.13%, against 1.89% nationally. That is about one flight in 25 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
5.2% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.
The 605 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 three other city pairs in the data, including SDF to IAD (23), IAD to BTV (1) and MKE to ORD (1), but none flew often enough under YX 3718 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to GRR to EWR only.
One caution: this is a thin sample. 339 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 3718
For a booking, the cancellation rate is the figure to plan around on YX 3718: 4.13% of its 339 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
- GRR to EWR, every carrier and departure
- EWR to GRR, the return direction
- Newark Liberty International (EWR) 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.