Flight number record
YX 5660
Republic Airways · Indianapolis to New York
- Route
- IND → LGA
- Departs
- 08:00
- Flights
- 348
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5660, 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 5660 earns an A−. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 348 flights, with a median arrival 13 minutes early.
Set against the rest of the country, YX 5660's record is 8 points better than the US average of 77.3%. That gap is worth roughly 82 fewer late arrivals for every thousand flights.
Key figures
On time
85.5%
Arrivals under 15 minutes late, of 332 completed flights
Avg delay
84 min
Across delayed arrivals only, not all flights
Cancelled
4.02%
National rate is 1.89%
1 hour+ late
5.1%
National rate is 8.3%
These figures cover 348 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 5660 flies
YX 5660 flies IND to LGA without a single fixed slot. Its most common scheduled departure was 08:00, used on 155 of 348 flights, with 08:05 (79 flights) next.
- Departs 08:00155 flights44.5%
- Departs 08:0579 flights22.7%
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 08:00 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 83.9%, and YX 5660 runs level with that at 85.5%. 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 5660 next to IND to LGA
Every carrier on IND to LGA combined arrived on time 80.9% of the time across 2,540 flights, so YX 5660 is 5 points ahead of it. Republic flew 2,533 flights on the same city pair under all its flight numbers, including this one, and those ran 80.9% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 7 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5660thin sample | 348 | 85.5% | 84 min | 4.02% | A− |
| All Republic Airways on IND–LGA | 2,533 | 80.9% | 69 min | 4.90% | B− |
| All carriers on IND–LGA | 2,540 | 80.9% | 69 min | 4.88% | B− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5660 quarter by quarter
Quarter by quarter YX 5660 held fairly steady: 90.0% in Jul–Sep 2025, 82.1% in Oct–Dec 2025, 84.4% in Jan–Mar 2026, 86.4% in Apr–Jun 2026 and 88.1% in Jul–Sep 2026. A spread of 8 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.
- Jul–Sep 202530 flights90.0%
- Oct–Dec 202580 flights82.1%
- Jan–Mar 202686 flights84.4%
- Apr–Jun 202690 flights86.4%
- Jul–Sep 202662 flights88.1%
Scale runs 75% to 95%.
By weekday, YX 5660 did best on Saturday at 91.8% on time and worst on Tuesday at 77.8%. Each day rests on about 50 flights, so a gap of 14 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 5660 runs when it is late
YX 5660 often beats the schedule: 137 of 332 completed flights, 41%, arrived 15 minutes or more early. The 48 late arrivals split 12 under half an hour, 19 between 30 and 60 minutes, and 17 an hour or more.
- 15+ min early137 flights41.3%
- Within 15 min147 flights44.3%
- 15–29 min late12 flights3.6%
- 30–59 min late19 flights5.7%
- 1–2 hours late5 flights1.5%
- 2+ hours late12 flights3.6%
Scale runs 0% to 100%.
Share of 332 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 39 departures that left 15 minutes late or more, only 4 made it up before arrival. 13 flights left on time and still arrived late.
The worst days
Worst days for YX 5660
The latest arrival of the period was on 28 August 2026, 7 hours 37 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 28 August 2026 | 7 hours 37 minutes | Carrier |
| 7 July 2026 | 6 hours 6 minutes | Carrier |
| 5 October 2025 | 5 hours 13 minutes | Carrier |
| 25 February 2026 | 4 hours 4 minutes | Carrier |
| 8 October 2025 | 3 hours 26 minutes | Carrier |
Delay causes
Why YX 5660 runs late
Carrier accounts for 76% of the 4,044 delay minutes carriers reported here, and the remaining four split what is left.
- 76%Carrier
- 15%National Airspace System
- 6%Extreme weather
- 3%Late-arriving aircraft
- 0%Security
The largest share of delay minutes, 76%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 3,054 of the 4,044 delay minutes reported here. The split is drawn from 4,044 delay minutes reported on YX 5660.
Cancellations run at 4.02%, 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
5.1% 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 an hour and a half, which a normal layover absorbs.
The 660 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 one other city pair in the data, including RDU to BOS (11), but none flew often enough under YX 5660 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IND to LGA only.
One caution: this is a thin sample. 348 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 5660
For a booking, the cancellation rate is the figure to plan around on YX 5660: 4.02% of its 348 scheduled flights did not operate. A late arrival costs an hour and a half, but a cancellation costs the day, so leave a later option open.
Related
Where to go next
- IND to LGA, every carrier and departure
- LGA to IND, the return direction
- Republic Airways 4797 on the same route88.6%
- Republic Airways 4601 on the same route69.5%
- Indianapolis International (IND) delay statistics
- 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
- 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.