Allegiant Air LLC (G4) on-time performance

Of 3,548 sampled G4 departures, 53.3% left 15 minutes or more behind schedule. Average lateness was 34.9 minutes. Sample window: Nov 4, 2025 to Oct 28, 2026.

These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.

On-time performance by month

Month Departures sampled Late Average lateness
Nov 2025 45 37.8% 22.0 min
Dec 2025 46 56.5% 34.3 min
Jan 2026 537 47.7% 27.2 min
Mar 2026 2,429 53.5% 36.5 min
May 2026 295 57.3% 34.9 min
Jun 2026 51 68.6% 43.0 min
Jul 2026 72 54.2% 36.8 min
Aug 2026 28 67.9% 58.6 min
Oct 2026 39 66.7% 29.3 min

On-time performance by airport

The G4 flights that are late right now

GET /flight_delays filtered by airline_iata=G4 returns the flights delayed at this moment: flight number, scheduled and actual times and minutes of delay.

https://www.goflightlabs.com/flight_delays?access_key=YOUR_ACCESS_KEY&delay=15&type=departures&airline_iata=G4

That URL still says YOUR_ACCESS_KEY. A 7-day trial replaces it with a real key. After the trial, Starter is $24.99/mo.