Flight number record
YX 3524
Republic Airways · Columbus to Chicago
- Route
- CMH → ORD
- Departs
- 05:30
- Flights
- 327
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s YX 3524, 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 3524 earns an A+. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 17 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 327 flights, with a median arrival 18 minutes early.
Set against the rest of the country, YX 3524's record is 17 points better than the US average of 77.3%. That gap is worth roughly 165 fewer late arrivals for every thousand flights.
Key figures
On time
93.8%
Arrivals under 15 minutes late, of 323 completed flights
Avg delay
96 min
Across delayed arrivals only, not all flights
Cancelled
0.92%
National rate is 1.89%
1 hour+ late
2.8%
National rate is 8.3%
These figures cover 327 flights between September 2025 and August 2026. The median arrival is 18 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When YX 3524 flies
YX 3524 flies CMH to ORD without a single fixed slot. Its most common scheduled departure was 05:30, used on 109 of 327 flights, with 06:00 (85 flights) and 05:45 (36 flights) next.
- Departs 05:30109 flights33.3%
- Departs 06:0085 flights26.0%
- Departs 05:4536 flights11.0%
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 05:30 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and YX 3524 runs 5 points better at 93.8%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
YX 3524 next to CMH to ORD
Every carrier on CMH to ORD combined arrived on time 75.4% of the time across 4,988 flights, so YX 3524 is 18 points ahead of it. Republic flew 1,626 flights on the same city pair under all its flight numbers, including this one, and those ran 83.6% on time. Across its whole network Republic Airways managed 78.1%, which this flight beats by 16 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| YX 3524thin sample | 327 | 93.8% | 96 min | 0.92% | A+ |
| All Republic Airways on CMH–ORD | 1,626 | 83.6% | 66 min | 2.71% | B |
| All carriers on CMH–ORD | 4,988 | 75.4% | 95 min | 2.73% | B |
| Republic Airways, whole network | 364,452 | 78.1% | 74 min | 4.55% | B− |
Across the year
YX 3524 quarter by quarter
YX 3524 did not run the same all year. Its best quarter was Jul–Sep 2025 at 100.0% on time and its weakest Oct–Dec 2025 at 86.5%, a swing of 14 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 202530 flights100.0%
- Oct–Dec 202589 flights86.5%
- Jan–Mar 202664 flights93.5%
- Apr–Jun 202682 flights100.0%
- Jul–Sep 202662 flights93.5%
Scale runs 80% to 100%.
By weekday, YX 3524 did best on Thursday at 100.0% on time and worst on Monday at 83.7%. Each day rests on about 47 flights, so a gap of 16 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late YX 3524 runs when it is late
YX 3524 often beats the schedule: 192 of 323 completed flights, 59%, arrived 15 minutes or more early. The 20 late arrivals split 7 under half an hour, 4 between 30 and 60 minutes, and 9 an hour or more.
- 15+ min early192 flights59.4%
- Within 15 min111 flights34.4%
- 15–29 min late7 flights2.2%
- 30–59 min late4 flights1.2%
- 1–2 hours late4 flights1.2%
- 2+ hours late5 flights1.5%
Scale runs 0% to 100%.
Share of 323 completed flights by arrival against schedule.
A late pushback is often recovered here: of 30 departures that left 15 minutes late or more, 17 still arrived on time. 7 flights left on time and still arrived late.
The worst days
Worst days for YX 3524
The latest arrival of the period was on 14 December 2025, 7 hours 44 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 14 December 2025 | 7 hours 44 minutes | Late-arriving aircraft |
| 27 January 2026 | 3 hours 54 minutes | Carrier |
| 11 August 2026 | 3 hours 40 minutes | National Airspace System |
| 6 July 2026 | 3 hours 36 minutes | Carrier |
| 31 December 2025 | 2 hours 8 minutes | Carrier |
Delay causes
Why YX 3524 runs late
Carrier accounts for 49% of the 1,925 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Carrier
- 29%National Airspace System
- 22%Late-arriving aircraft
The largest share of delay minutes, 49%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 941 of the 1,925 delay minutes reported here. The split is drawn from 1,925 delay minutes reported on YX 3524.
Cancellations sit at 0.92% against a national 1.89%, which is ordinary. Diversions add another 0.31%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 2.8% land an hour or more behind schedule, against 8.3% 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 same number turns up on four other city pairs in the data, including ORD to MSY (25), MSN to ORD (14) and MCI to ORD (1), but none flew often enough under YX 3524 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to CMH to ORD only.
One caution: this is a thin sample. 327 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 3524
For a booking, YX 3524 has one of the better records a US domestic flight can show: 93.8% on time and 0.92% cancelled. That is a base rate, not a promise about any single day.
Related
Where to go next
- CMH to ORD, every carrier and departure
- ORD to CMH, the return direction
- Envoy Air 3572 on the same route75.0%
- John Glenn Columbus International (CMH) delay statistics
- Chicago O'Hare International (ORD) 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
- The best day of the week to fly, and why it is the second lever
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.