Flight number record
YX 5635
Republic Airways · New York to Indianapolis
- Route
- LGA → IND
- Departs
- 17:30
- Flights
- 312
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 5635, 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 5635 sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 312 flights, with a median arrival 8 minutes early.
The national on-time rate over the same period is 77.3%, so YX 5635 runs 5 points behind the country as a whole. Across a thousand flights that is about 46 extra late arrivals.
Key figures
On time
72.7%
Arrivals under 15 minutes late, of 289 completed flights
Avg delay
85 min
Across delayed arrivals only, not all flights
Cancelled
7.37%
National rate is 1.89%
1 hour+ late
12.5%
National rate is 8.3%
These figures cover 312 flights between September 2025 and August 2026. Beyond the headline rate, 12.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Schedule
When YX 5635 flies
YX 5635 flies LGA to IND without a single fixed slot. Its most common scheduled departure was 17:30, used on 159 of 312 flights, with 17:45 (51 flights) next.
- Departs 17:30159 flights51.0%
- Departs 17:4551 flights16.3%
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 17:30 departure sits in the 5pm–8pm window. Across every US flight scheduled in that window the on-time rate is 68.0%, and YX 5635 runs 5 points better at 72.7%. 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 5635 next to LGA to IND
Every carrier on LGA to IND combined arrived on time 75.1% of the time across 2,540 flights, so YX 5635 is 2 points behind it. Republic flew 2,533 flights on the same city pair under all its flight numbers, including this one, and those ran 75.0% on time. Across its whole network Republic Airways managed 78.1%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 5635thin sample | 312 | 72.7% | 85 min | 7.37% | C− |
| All Republic Airways on LGA–IND | 2,533 | 75.0% | 75 min | 5.80% | B− |
| All carriers on LGA–IND | 2,540 | 75.1% | 75 min | 5.79% | B− |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 5635 quarter by quarter
YX 5635 did not run the same all year. Its best quarter was Apr–Jun 2026 at 76.7% on time and its weakest Oct–Dec 2025 at 65.8%, a swing of 11 points on roughly 78 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 202526 flights—
- Oct–Dec 202577 flights65.8%
- Jan–Mar 202674 flights72.1%
- Apr–Jun 202678 flights76.7%
- Jul–Sep 202657 flights71.7%
Scale runs 55% to 80%. Rows with fewer than 30 flights show a dash.
By weekday, YX 5635 did best on Tuesday at 82.2% on time and worst on Thursday at 64.4%. Each day rests on about 45 flights, so a gap of 18 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 5635 runs when it is late
YX 5635 often beats the schedule: 112 of 289 completed flights, 39%, arrived 15 minutes or more early. The 79 late arrivals split 22 under half an hour, 21 between 30 and 60 minutes, and 36 an hour or more.
- 15+ min early112 flights38.8%
- Within 15 min98 flights33.9%
- 15–29 min late22 flights7.6%
- 30–59 min late21 flights7.3%
- 1–2 hours late15 flights5.2%
- 2+ hours late21 flights7.3%
Scale runs 0% to 100%.
Share of 289 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 70 departures that left 15 minutes late or more, only 7 made it up before arrival. In the other direction, 16 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 IND.
The worst days
Worst days for YX 5635
The latest arrival of the period was on 22 June 2026, 7 hours 5 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 |
|---|---|---|
| 22 June 2026 | 7 hours 5 minutes | Late-arriving aircraft |
| 25 February 2026 | 6 hours 39 minutes | Late-arriving aircraft |
| 19 December 2025 | 5 hours 10 minutes | Carrier |
| 27 July 2026 | 3 hours 51 minutes | Late-arriving aircraft |
| 13 December 2025 | 3 hours 49 minutes | National Airspace System |
Delay causes
Why YX 5635 runs late
Late-arriving aircraft accounts for 46% of the 6,688 delay minutes carriers reported here, and the remaining four split what is left.
- 46%Late-arriving aircraft
- 37%Carrier
- 17%National Airspace System
46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 6,688 reported delay minutes here, that single category outweighs weather by 46 to one. The split is drawn from 6,688 delay minutes reported on YX 5635.
Cancellations run at 7.37%, against 1.89% 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
12.5% 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 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 three other city pairs in the data, including BNA to LGA (16), DTW to GRR (1) and GRR to DTW (1), but none flew often enough under YX 5635 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to IND only.
One caution: this is a thin sample. 312 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 5635
For a booking, the cancellation rate is the figure to plan around on YX 5635: 7.37% of its 312 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
- LGA to IND, every carrier and departure
- IND to LGA, the return direction
- LaGuardia (LGA) delay statistics
- Indianapolis International (IND) 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.