Flight number record

YX 3524

Republic Airways · Columbus to Chicago

Route: CMH → ORD
Departs: 06:00
Flights: 327
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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 16 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 327 flights, with a median arrival 16 minutes early.

Set against the rest of the country, YX 3524's record is 16 points better than the US average of 77.6%. That gap is worth roughly 162 fewer late arrivals for every thousand flights.

On time

93.8%

Arrivals under 15 minutes late, of 322 completed flights

Avg delay

82 min

Across delayed arrivals only, not all flights

Cancelled

1.22%

National rate is 1.81%

1 hour+ late

2.5%

National rate is 8.1%

These figures cover 327 flights between July 2025 and June 2026. The median arrival is 16 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 3524 flies

YX 3524 flies CMH to ORD without a single fixed slot. Its most common scheduled departure was 06:00, used on 146 of 327 flights, with 05:30 (68 flights) and 05:45 (36 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:00146 flights44.6%
Departs 05:3068 flights20.8%
Departs 05:4536 flights11.0%

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 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 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.

Against the route

YX 3524 next to CMH to ORD

Every carrier on CMH to ORD combined arrived on time 74.5% of the time across 4,841 flights, so YX 3524 is 19 points ahead of it. Republic flew 1,512 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 78.5%, which this flight beats by 15 points.

YX 3524 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
YX 3524thin sample	327	93.8%	82 min	1.22%	A
All Republic Airways on CMH–ORD	1,512	83.6%	68 min	2.18%	B
All carriers on CMH–ORD	4,841	74.5%	89 min	2.46%	C
Republic Airways, whole network	361,482	78.5%	72 min	4.08%	B−

Across the year

YX 3524 quarter by quarter

YX 3524 did not run the same all year. Its best quarter was Apr–Jun 2026 at 100.0% on time and its weakest Oct–Dec 2025 at 86.5%, a swing of 14 points on roughly 82 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 202592 flights95.6%
Oct–Dec 202589 flights86.5%
Jan–Mar 202664 flights93.5%
Apr–Jun 202682 flights100.0%

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, YX 3524 did best on Saturday at 100.0% on time and worst on Monday at 85.4%. Each day rests on about 47 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

Delay causes

Why YX 3524 runs late

One category carries most of the weight here. Carrier accounts for 51% of the 1,629 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
51%
Late-arriving aircraft
26%
National Airspace System
23%

The largest share of delay minutes, 51%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 835 of the 1,629 delay minutes reported here. The split is drawn from 1,629 delay minutes reported on YX 3524.

Cancellations sit at 1.22% against a national 1.81%, 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 2.5% 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 same number turns up on five other city pairs in the data, including ORD to MSY (25), ORD to BDL (20) and MSN to ORD (14), 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 1.22% cancelled. That is a base rate, not a promise about any single day.

Where to go next

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.

Key figures