Route · GPT → IAH · 2020–2025 BTS data

Gulfport/Biloxi to Houston

The GPT–IAH corridor (Gulfport/Biloxi, MS → Houston, TX) runs ahead of the national average, served by 2 carriers across roughly 376 miles.

Compiled by PlainFlights Editorial, Flight Performance Editorial Team

Data updated 2026-06-13

91.6%
On-time: +12.6 pts
vs US avg: 73 min
Delay when late: 653
Flights

Cancelled

5.7%

Best Month

Sep 2020 98%

Worst Month

Feb 2020 87%

Distance

376 mi

Carriers

Monthly Performance

Recent 24 months of route data.

Period	Flights	Delayed	Cancelled	Diverted	Carriers
Oct 2020	62	7	1	1	OO
Sep 2020	57	1	3	0	EV
Aug 2020	60	6	4	0	EV
Jul 2020	53	4	0	0	EV
Jun 2020	45	6	1	0	EV
May 2020	59	2	2	1	EV
Apr 2020	36	1	4	0	EV
Mar 2020	88	7	17	0	EV
Feb 2020	101	13	2	0	EV
Jan 2020	92	8	3	1	EV

Cancellation Rate

5.7%

37 of 653 flights

Diversion Rate

0.5%

3 of 653 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

GPT - Gulfport/Biloxi

Full on-time, delay-cause, and seasonal performance for Gulfport/Biloxi, MS.

Origin airport →

IAH - Houston

Full on-time, delay-cause, and seasonal performance for Houston, TX.

Destination airport →

Compare the two airports

See GPT and IAH side by side on delays, cancellations, and reliability.

Open comparison tool →

Similar routes

Other BTS-tracked routes with comparable performance or trip length to GPT–IAH.

Routes with a similar on-time rate

PDX → MSP

Portland to Minneapolis

91.6% on-time

IDA → SLC

Idaho Falls to Salt Lake City

91.6% on-time

FCA → SLC

Kalispell to Salt Lake City

91.6% on-time

OAJ → ATL

Jacksonville/Camp Lejeune to Atlanta

91.6% on-time

Routes of a similar trip length

MSP → TVC

Minneapolis to Traverse City

376 mi

TVC → MSP

Traverse City to Minneapolis

376 mi

BWI → MHT

Baltimore to Manchester

377 mi

MHT → BWI

Manchester to Baltimore

377 mi

What the Data Says About GPT to IAH

Gulfport/Biloxi to Houston (GPT to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 91.6% on-time rate across 653 flights, with delays that do happen averaging 73.0 minutes. The corridor runs roughly 376 miles and is served by 2 carriers. Over the most recent 24 months, 37 of 653 flights were cancelled (5.7%) and 3 diverted (0.5%).

Monthly performance varies moderately here: Sep 2020 was the strongest month at 98% on-time versus Feb 2020 at 87%, a 11-point difference.

Frequently Asked Questions

How often are flights delayed from GPT to IAH? ▼

Flights from Gulfport/Biloxi to Houston have a 91.6% on-time rate based on 653 flights. The average delay is 73.0 minutes. The best recent month was Sep 2020 with 98% on-time.

What is the cancellation rate for GPT to IAH? ▼

Over the last 24 months, 5.7% of flights on this route were cancelled (37 of 653 flights) and 0.5% were diverted.

How far is the flight from GPT to IAH? ▼

The flight distance from Gulfport/Biloxi (GPT) to Houston (IAH) is approximately 376 miles. This route is served by 2 carriers.

When is the best time to fly from GPT to IAH? ▼

The best recent month for on-time performance was Sep 2020 (98% on-time). The worst was Feb 2020 (87% on-time). Consider booking during months with historically better performance.

Flight Guides

Tips and data-driven advice for choosing reliable routes.

How to Choose Reliable Flight Routes

Use delay data to pick flights that arrive on time

Best & Worst Airlines for On-Time Performance

Which carriers consistently outperform peers

Why Flights Get Cancelled

Cancellation causes broken down by data

Explore PlainFlights

Gulfport/Biloxi

Houston

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Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.