How often is Allegiant Air on time?

Allegiant Air (G4) ran 83% on time across 735,785 flights of official airline-reported data.

Airline · G4 · United States

How reliable is Allegiant Air?

Allegiant Air runs 83% on time across 735,785 flights of official airline-reported history. Here’s how it really performs — including when it’s late and on which routes.

Score a flight →How we score →

0.0

Reliability score

on-time, cancellations & delays

▼ 1.6 pts decliningvs prior year

Network reliability

Allegiant Air’s on-time record across its whole network

83%

On-time flights

within 15 min of schedule

0.4%

Cancellation rate

airline-caused

15 min

Avg. delay

when delayed

735,785

Flights analyzed

high confidence

Source: BTS TranStats · data through 2026-06-25. On-time and cancellations are airline-controllable (cause-attributed). Advisory context, not a guarantee for any one flight.

When flights run late

It’s not just if Allegiant Air is late — it’s how late

Of every 100 Allegiant Air flights, how they actually land — on time, or in each lateness band. A short delay is a nuisance; a 2-hour delay misses connections.

On time 83.0%15–30 min late 5.3%30–60 min late 5.1%1–2 hr late 3.7%2 hr+ late 2.8%

Routes

Where Allegiant Air shines — and where it struggles

Its most and least reliable routes by on-time rate (routes with a meaningful sample). Tap an airport for its full profile.

Most reliable

AVL→BOS97%on time
AVL→EWR96%on time
TYS→BOS96%on time
BLI→OAK96%on time
BLI→LAS96%on time

Least reliable

HTS→SFB58%on time
TRI→SFB58%on time
ROA→SFB59%on time
CHA→SFB59%on time
SYR→FLL60%on time

The read on Allegiant Air

What the record actually tells you about flying Allegiant Air

Allegiant Air runs about 83% on time across 735,785 flights of official airline-controllable history — one of the better on-time records in the data. On cancellations, cancellations are rare here, at roughly 0.4%. Worth noting, its on-time rate has slipped recently — down about 1.6 points versus the prior year.

It's not just whether a flight is late, but how late. When Allegiant Air runs behind, the typical delay lands around 15 minutes, and only a small slice — about 2.8% — slip two hours or more, so the worst-case tail is relatively contained.

Reliability isn't uniform across Allegiant Air's map. Its strongest route in the data is AVL–BOS, running around 97% on time, while HTS–SFB is among its weakest at about 58%. That gap is the whole point: judge Allegiant Air on the route you're actually flying, not on its overall average.

A track record is the backdrop, not a verdict on your flight. To put it to work, score your actual Allegiant Air flight on reliability, weather, and connection safety, see how the PlaneSane Score works, and read are some airlines really more reliable and how to read on-time stats.

Common questions about Allegiant Air

How often is Allegiant Air on time?: Allegiant Air (G4) ran about 83% on time across 735,785 flights of official airline-reported history — one of the better on-time records in the data. Its cancellation rate is roughly 0.4%.
Is Allegiant Air a reliable airline?: On the numbers, Allegiant Air has one of the better on-time records in the data. Typical delays run around 15 minutes when flights are late. Reliability varies by route and time of day, so check your specific flight rather than the brand average. It's advisory context, not a guarantee for any one flight.
Which routes does Allegiant Air fly most reliably?: In our data, AVL–BOS is among Allegiant Air's most reliable routes at about 97% on time, while HTS–SFB is among its weakest near 58%. The same airline can perform very differently route to route.

Flying Allegiant Air?

Score your actual flight on reliability, weather, and connection safety before you book — Allegiant Air’s track record is just the start.

Score a flight →Compare airlines →