Best time to fly out of Gulfport Biloxi (GPT)
The early-flight folk wisdom holds up at Gulfport Biloxi: departures in the 6–8am band left on time 93.1% of the time, against 76.9% in the 6–8pm band. These are historical odds, not forecasts. The records say what happened on this schedule over three years; they know nothing about tomorrow’s thunderstorm.
Data through June 2026 · Bureau of Transportation Statistics
On-time rate by hour and day
On this page, “on time” means a departure that pushed back less than 15 minutes behind its scheduled time — the Bureau of Transportation Statistics definition, and the one airlines are held to.
| Departure time | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| Before 6am | 90 | 92 | 91 | 92 | 94 | 91 | 90 |
| 6–8am | 93 | 94 | 93 | 94 | 91 | 94 | 92 |
| 8–10am | – | – | – | – | – | – | – |
| 10am–12pm | 85 | 90 | 88 | 88 | 88 | 86 | 83 |
| 12–2pm | 81 | 87 | 90 | 82 | 83 | 82 | 80 |
| 2–4pm | – | – | – | – | – | – | – |
| 4–6pm | 81 | 81 | 79 | 80 | 79 | 79 | 80 |
| 6–8pm | 77 | 80 | 79 | 79 | 78 | 74 | 71 |
| 8–10pm | – | – | – | – | – | – | – |
| 10pm–12am | – | – | – | – | – | – | – |
The steadiest stretch at GPT was 6–8am — 93.1% of departures left on time across 2,140 flights. The weakest was 6–8pm at 76.9%. 6–8am departures from GPT left on time 93.1% of the time across 2,140 flights; 6–8pm departures, 76.9% across 1,568. That is a gap of 16.2 points, and it is the whole case for the early flight.
The year at GPT
May was the hard month at GPT: 80.1% of departures left on time, across 860 flights. October was the easy one at 90.6%. Each month pools three years of that month, so a single bad week does not decide it.
| Month | Share departures that left on time | Flights |
|---|---|---|
| January | 83.9% | 748 |
| February | 86.7% | 704 |
| March | 85.2% | 795 |
| April | 87.2% | 813 |
| May | 80.1% | 860 |
| June | 80.1% | 821 |
| July | 83.1% | 878 |
| August | 88.3% | 865 |
| September | 88.6% | 829 |
| October | 90.6% | 837 |
| November | 89.8% | 754 |
| December | 84% | 775 |
Airlines at GPT
Every airline with at least 100 departures from GPT, busiest first. These are that airline’s departures from this airport only — its record across the country sits on its own page.
| Airline | Left on time | Typical delay | Cancelled | Departures |
|---|---|---|---|---|
| Delta Air Lines | 88.4% | 108 min | 1.5% | 3,710 |
| PSA Airlines | 85.4% | 108 min | 2.8% | 3,393 |
| Envoy Air | 82.1% | 80 min | 2.7% | 1,844 |
| SkyWest Airlines | 84.7% | 117 min | 1.8% | 618 |
What delays out of GPT were put down to
Airlines file a reason with every arrival running 15 minutes late or more. Across 1,423 flights that departed GPT and ran 15 minutes late or more, the delay minutes break down with 38.8% put down to airline operations and 38.7% to late-arriving aircraft.
- Late-arriving aircraft 38.7%
- Airline operations 38.8%
- Air traffic & airport volume 11.1%
- Severe weather 11.3%
- Security 0%
Late-arriving aircraft is the knock-on category: the plane came in late, so it went out late again. It is why a 7am problem in Newark is still a problem in Denver at dinnertime, and why it is usually the biggest slice on the bar.
If you are connecting through GPT
Of 9,679 scheduled arrivals into GPT, 79.5% reached the gate less than 15 minutes behind schedule. Of the 1,745 arrivals that ran late, 53% were no more than 45 minutes behind — which is the difference between a tight connection and a new boarding pass.
Work out a specific layover — pick the airport and the minutes you have, and the tool reads the same arrival records back as a share.
Busiest routes out of GPT
Ranked by flights, with the share that arrived on time at the far end. Where a route carries enough flights for a page of its own the chip goes there; otherwise it goes to the destination airport.
GPT in one number
Gulfport Biloxi (GPT)
Rank 168 of 363 US airports by departures. Steadiest stretch of the day: 6–8am. Hardest month: May.
Questions about GPT
- What is the best time of day to fly out of Gulfport Biloxi?
- 6–8am. Departures in that band left on time 93.1% of the time across 2,140 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 6–8pm band was the weakest at 76.9%.
- Is the early flight out of GPT really more reliable?
- 6–8am departures from GPT left on time 93.1% of the time across 2,140 flights; 6–8pm departures, 76.9% across 1,568. That is a gap of 16.2 points, and it is the whole case for the early flight.
- What is the worst month to fly out of GPT?
- May: 80.1% of the departures that flew left on time, with 860 scheduled. October was the other end of the year at 90.6%. Each figure pools three years of that calendar month.
- Which airline is most on time at GPT?
- Delta Air Lines — 88.4% of its 3,710 departures from GPT left on time. Envoy Air sat at the other end at 82.1% over 1,844 flights. Only airlines with at least 100 departures here are ranked.
- How often are flights cancelled at GPT?
- 2.2% of scheduled departures were cancelled over July 2023 through June 2026. Cancellations are counted against everything scheduled, not against everything that flew — a rate that looks small still adds up to real people in a rebooking line.