Carrier route record

G4FLL→CVG

Allegiant Air · Fort Lauderdale to Cincinnati

Flights: 258
Period: July 2025 to June 2026
Share of route: 26%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Allegiant Air.

Allegiant on FLL to CVG sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 8 points worse than the national rate of 77.6%. The late ones land an hour and a half behind schedule. That rests on 258 flights, with a median arrival 1 minute late.

The national on-time rate over the same period is 77.6%, so Allegiant on FLL to CVG runs 8 points behind the country as a whole. Across a thousand flights that is about 76 extra late arrivals.

On time

70.0%

Arrivals under 15 minutes late, of 257 completed flights

Avg delay

89 min

Across delayed arrivals only, not all flights

Cancelled

0.39%

National rate is 1.81%

Whole route

71.4%

Every carrier on FLL to CVG, 987 flights

These figures cover 258 flights between July 2025 and June 2026. Beyond the headline rate, 9.7% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Carrier by carrier

Allegiant against every carrier on FLL to CVG

Allegiant flew 258 of the 987 flights on FLL to CVG, about 26% of it. Its 70.0% on time is about level with the route as a whole at 71.4%. Ranked by on-time rate it is number two of three carriers on the route, where the range runs from Delta at 72.7% to Frontier at 69.9%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on FLL to CVG
Airline	Flights	On time	Avg delay	Cancelled	Grade
Delta Air Lines	533	72.7%	78 min	1.31%	C
Allegiant Air (this page)thin sample	258	70.0%	89 min	0.39%	C+
Frontier Airlinesthin sample	196	69.9%	111 min	1.53%	C

Departure window

When Allegiant runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 35 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am14 flights—
8am–11am72 flights86.1%
11am–2pm52 flights72.5%
2pm–5pm21 flights—
5pm–8pm66 flights51.5%
8pm–5am33 flights72.7%

Scale runs 45% to 90%. Rows with fewer than 30 flights show a dash.

The 5pm–8pm window is where this operation falls apart: 51.5% on time, against 86.1% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 72 flights scheduled in it.

Across the year

Allegiant on FLL to CVG through the year

Jul–Sep 202558 flights81.0%
Oct–Dec 202552 flights76.9%
Jan–Mar 202676 flights56.0%
Apr–Jun 202672 flights70.8%

Scale runs 50% to 85%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 70.0% on time across 258 flights.

Allegiant on FLL to CVG did not run the same all year. Its best quarter was Jul–Sep 2025 at 81.0% on time and its weakest Jan–Mar 2026 at 56.0%, a swing of 25 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.

Across the week, Thursday is the strongest day at 80.4% on time and Saturday the weakest at 57.5%. 23 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Allegiant runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 56% of the 6,853 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.

Late-arriving aircraft
56%
Carrier
24%
National Airspace System
18%
Extreme weather
3%

56% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 6,853 reported delay minutes here, that single category outweighs weather by 21 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 6,853 reported delay minutes.

The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 86.1% on time here.

Cancellations are rare at 0.39%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and stage length

What a delay here costs

For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.7% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.

The 932 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 72.7% on time across 258 flights, within 3 points of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 258 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 Allegiant on FLL to CVG

Put together: treat all of this as provisional. 258 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 70.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 257 completed flights over 12 months sit behind that.

Where to go next

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