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DelayAtlas

Airline on-time record

G4

Allegiant Air

Flights
126,005
Period
September 2025 to August 2026
Airports
25
US rank
#12 by volume
C+GRADE

Allegiant Air sits in the middle of the pack with a C+. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land an hour and a half behind schedule. That rests on 126,005 flights, of which Provo (PVU) flew 1,626 at 87.9% on time.

Provo (PVU) is the most reliable of the 25 airports covered here at 87.9% on time across 1,626 flights.

Key figures

On time

73.9%

National average is 77.3%

Avg delay

88 min

Across delayed flights only

Cancelled

0.68%

National rate is 1.89%

Largest base

SFB

10,104 departures, 70.5% on time

These figures cover 126,000 flights between September 2025 and August 2026. Beyond the headline rate, 10.4% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

Airport by airport

Where Allegiant Air runs well, and where it does not

The choice of airport is not cosmetic here. Provo (PVU) arrives on time 87.9% of the time; Fort Lauderdale (FLL) manages 60.9%. Sample sizes sit next to every figure, because a two-point gap across 4,734 flights means less than a ten-point one.

Allegiant Air on-time performance by departure airport
AirportFlightsOn timeAvg delayCancelledGrade
SFB · Sanford10,10470.5%84 min0.65%C+
PIE · St. Petersburg9,00277.2%71 min0.64%B+
PGD · Punta Gorda7,38878.9%74 min0.64%B+
LAS · Las Vegas7,02283.1%75 min0.43%B+
AZA · Mesa6,30281.2%70 min0.29%B+
FLL · Fort Lauderdale4,73460.9%79 min0.91%D+
CVG · Cincinnati3,48876.6%76 min0.43%B+
SRQ · Sarasota3,43182.8%76 min0.64%B+
TYS · Knoxville3,34173.0%84 min0.51%C+
AVL · Asheville3,08875.8%92 min0.74%B+
VPS · Valparaiso2,63674.8%78 min0.42%C+
GRR · Grand Rapids2,47676.7%70 min0.24%B+
BNA · Nashville2,23275.5%97 min0.67%B+
ABE · Allentown2,02179.2%100 min0.79%B+
DSM · Des Moines2,02074.9%99 min1.49%C
ATW · Appleton1,75182.1%119 min1.31%B
PVU · Provo1,62687.9%104 min0.25%A+
PIT · Pittsburgh1,60778.6%98 min0.93%B+
IND · Indianapolis1,60474.7%82 min0.75%C+
FNT · Flint1,60276.6%73 min0.19%B+
MYR · Myrtle Beach1,46271.2%111 min1.78%C
BLV · Belleville1,39670.1%106 min0.86%C+
SNA · Santa Ana1,28572.9%131 min0.93%C+
CAK · Akron1,16272.7%91 min0.52%C+
LCK · Columbus1,13371.8%92 min0.62%C+

The spread between PVU and FLL is 27 points, wide enough that it should decide the booking. On a hundred trips that is 27 more arrivals inside the on-time window.

Route by route

Busiest Allegiant Air routes

These are the 25 routes Allegiant Air flies most often, each against its network-wide 73.9%. Route-level variation inside a single airline is routinely wider than the gap between two airlines nationally.

Busiest Allegiant Air routes by flight volume
RouteFlightsOn timeAvg delayCancelledGrade
PVU to AZA70987.0%144 min0.42%A+
AZA to PVU70879.7%102 min0.42%B+
AVL to FLL66062.3%89 min1.06%D
FLL to AVL66059.9%89 min1.06%D
ABE to SFB64377.1%127 min0.47%B+
SFB to ABE64275.4%101 min0.31%B+
LAS to FAT64182.1%79 min0.62%B+
FAT to LAS64175.7%94 min0.62%B+
SFB to TYS63564.2%70 min0.63%D+
TYS to SFB63569.2%82 min0.63%C+
PIE to TYS52575.1%93 min0.76%B+
TYS to PIE52574.0%97 min0.76%C+
AVL to SFB51476.1%108 min0.58%B+
SFB to AVL51371.9%86 min0.58%C+
AVL to PIE51174.2%78 min0.78%C+
PIE to AVL51177.6%75 min0.59%B+
TYS to FLL47852.0%90 min0.84%F+
FLL to TYS47860.0%90 min0.84%D+
BLI to LAS43187.3%139 min1.39%A
LAS to BLI43085.8%91 min1.16%A
LAS to MFE42889.2%49 min0.47%A+
MFE to LAS42881.5%104 min0.47%B+
CVG to VPS41477.3%74 min0.72%B+
VPS to CVG41474.4%81 min0.72%C+
SNA to PVU41272.7%159 min0.24%C+

Departure window

The best time of day to fly Allegiant Air

Departure time matters more here than the choice of airport. The gap between the best and worst window is 31 points, against 27 points between the best and worst airport.

  • 5am–8am15,843 flights90.7%
  • 8am–11am24,844 flights84.9%
  • 11am–2pm25,038 flights76.4%
  • 2pm–5pm26,784 flights68.0%
  • 5pm–8pm20,841 flights61.1%
  • 8pm–5am12,655 flights59.3%

Scale runs 50% to 95%.

The 8pm–5am window is where this operation falls apart: 59.3% on time, against 90.7% for the 5am–8am 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 2pm–5pm window is the busiest, with 26,784 flights scheduled in it.

Across the year

Allegiant Air through the calendar

Allegiant's year swings by 14 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.

On-time rate by calendar month76J78F72M76A73M69J69J74A83S78O77N69D
Darker means more delays. Figures are on-time percentages.September best, June worst

June is the worst month at 68.8% on time, 14 points below September, the best at 83.0%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. July was the busiest month here, with 13,314 flights.

Across the week, Wednesday is the strongest day at 82.2% on time and Saturday the weakest at 70.3%, a spread of 12 points.

On-time rate by day of the week74.1Mon78.1Tue82.2Wed76.0Thu73.2Fri70.3Sat70.4Sun
Monday: 74.1 percent on time. Tuesday: 78.1 percent on time. Wednesday: 82.2 percent on time. Thursday: 76.0 percent on time. Friday: 73.2 percent on time. Saturday: 70.3 percent on time. Sunday: 70.4 percent on time

Delay causes

What holds Allegiant Air up

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2.87 million reported delay minutes.

  • Late-arriving aircraft
    39%
  • Carrier
    31%
  • National Airspace System
    18%
  • Extreme weather
    11%
  • Security
    0%

Extreme weather accounts for 11% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.9 times the usual weather exposure. The split is drawn from 2,871,867 reported delay minutes.

39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 2.87 million reported delay minutes here, that single category outweighs weather by 3 to one.

Cancellations are rare at 0.68%, below the national 1.89% 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.

10.4% 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.

126,005 flights sit behind these numbers, which is a large enough sample that the headline rate is not moving on noise. Where a sub-group falls below 30 flights the site shows a dash instead of a percentage.

What to do with this

Booking Allegiant Air

Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 83.0% on time and June 68.8%, a swing of 14 points. If the dates move at all, move them out of June before you think about anything else. 124,731 completed flights over 12 months sit behind that.

Common questions

Allegiant Air reliability questions

How often is Allegiant Air delayed?

About one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 26.1% of the 126,005 flights in this analysis, against 22.7% nationally. Delayed flights are late by an hour and a half on average.

Which airport does Allegiant Air run best from?

Provo (PVU) leads at 87.9% on time across 1,626 flights. Fort Lauderdale (FLL) is at the other end on 60.9%, a gap of 27 points. Sample size matters as much as the percentage: a rate built from a few hundred flights moves around far more than one built from ten thousand.

What time of day has the fewest delays on Allegiant Air?

The 5am–8am departure window is the strongest at 90.7% on time. The 8pm–5am window is the weakest at 59.3%, 31 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are June delays on Allegiant Air?

June is the weakest month at 68.8% on time, compared with 83.0% in September. Across the year that is 14 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

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.