How reliable is Gulfport Biloxi International Airport?
Flights from GPT departed within 15 minutes of schedule in 86% of 25,570 flights in official BTS history — and weather is calmest in Sep. Here’s the full picture before you book.
Reliability score
on-time, cancellations & delays
Weather favorability
year-round climate
Origin-airport operations
What the departure punctuality at GPT looks like
On-time departures
across 25,570 flights
Source: BTS Airport Operations · data through 2026-06-25. Role-specific BTS departure history; advisory context, not a guarantee for any flight.
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Weather by month
When the weather works for you at Gulfport
A calm-weather score (0–100) for each month from decades of airport observations — how often conditions disrupt flying, not temperature. Higher is calmer.
Calmest month
Calmest flying weather of the year · 96/100 favorability
Roughest month
Most disruptive — low visibility & fog, thunderstorms · 82/100 favorability
The read on GPT
What the numbers say about flying through Gulfport Biloxi International Airport
Across official performance history, flights from Gulfport left within 15 minutes of schedule about 86% of the time over 25,570 flights. That's one of the more dependable operational records you'll see. Pair it with a moderate cancellation rate of 2.3%. When a departure does run late, the typical delay is around 8 minutes.
On weather, Gulfport is an unusually calm-weather airport year-round. September is the calmest stretch for flying, scoring 96 out of 100 for favorable conditions, while December is the most disruptive at 82, driven mainly by low visibility & fog and thunderstorms. The year is relatively steady, so no single month stands out as one to avoid on weather alone.
None of this guarantees your specific flight — it’s the backdrop. To turn it into a booking, score real flights to Gulfport, read how we weigh it all in how the PlaneSane Score works, and brush up with how to pick a reliable flight and avoiding weather delays.
Common questions about GPT
- How reliable is Gulfport Biloxi International Airport (GPT)?
- Flights from Gulfport left within 15 minutes of schedule roughly 86% of the time across 25,570 flights of official history — one of the more dependable operational records you'll see. The cancellation rate runs about 2.3%. It's advisory context, not a guarantee for any single flight.
- What is the best month to fly from GPT for good weather?
- September has the calmest flying weather at Gulfport Biloxi International Airport. December is the most disruptive, mainly from low visibility & fog and thunderstorms.
Planning a trip through Gulfport?
Score real flights to and from GPT on reliability, weather, and connection safety — not just price.