Gulfport-Biloxi International in May 2025

79.3%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In May 2025, reporting carriers scheduled 304 domestic departures from Gulfport-Biloxi International (GPT). 79.3% left less than 15 minutes late and 76.3% reached their destination on time; 2.0% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so GPT departures were 2.6 points above the national departure figure.

A year earlier, in May 2024, the airport had 283 departures with 77.0% leaving on time: a change of +2.3 points, with flights up 7%.

Flights arriving at GPT that month were on time 71.1% of the time (304 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 28% and national aviation system 18%.

On time 76.3%
Arrived 15+ minutes late 21.1%
Cancelled 2.0%
Diverted 0.7%

Every scheduled departure from GPT in May 2025, judged by arrival at the destination.

May 2025 against a year earlier, the airport's year and the nation

Measure	May 2025	May 2024	GPT, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	79.3%	77.0%	83.0%	76.7%
Arrived on time	76.3%	72.8%	83.1%	75.4%
Cancelled	2.0%	3.2%	2.5%	1.0%
Average departure delay (late minutes only)	15.3 min	22.7 min	15.9 min	17.5 min
Scheduled departures a day	10	9	8	20,188
Scheduled departures	304	283	3,006	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OH PSA Airlines	119	39%	73.1%	10.6 min	2.5%
DL Delta Air Lines	118	39%	79.7%	4.2 min	0.0%
MQ Envoy Air	36	12%	69.4%	13.4 min	8.3%
OO SkyWest Airlines	31	10%	83.9%	-0.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
GPT–ATL	Gulfport/Biloxi to Atlanta	118	79.7%	4.2 min	0.0%
GPT–CLT	Gulfport/Biloxi to Charlotte	93	71.0%	12.6 min	2.2%
GPT–DFW	Gulfport/Biloxi to Dallas/Fort Worth	93	77.4%	5.6 min	4.3%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	27.5%	29.3%	1,191
Late-arriving aircraft	46.3%	37.8%	2,005
National Aviation System	17.6%	25.9%	765
Extreme weather	8.6%	6.9%	374
Security	0.0%	0.1%	0

4,335 delay minutes on 64 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left GPT on time in May 2025?

79.3% of 304 scheduled domestic departures left less than 15 minutes late, and 76.3% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 77.0% of 283 departures left on time and 3.2% were cancelled, against 79.3% and 2.0% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for GPT · methodology · corrections.