Route · IAH → GPT · 2020–2025 BTS data

Houston to Gulfport/Biloxi

The IAH–GPT corridor (Houston, TX → Gulfport/Biloxi, MS) runs ahead of the national average, served by 3 carriers across roughly 376 miles.

Compiled by PlainFlights Editorial, Flight Performance Editorial Team

Data updated 2026-06-13

92.2%
On-time: +13.2 pts
vs US avg: 102 min
Delay when late: 653
Flights

Cancelled

5.2%

Best Month

May 2020 95%

Worst Month

Jan 2020 89%

Distance

376 mi

Carriers

Monthly Performance

Recent 24 months of route data.

Period	Flights	Delayed	Cancelled	Diverted	Carriers
Oct 2020	62	6	1	0	OO
Sep 2020	57	5	3	0	EV,OO
Aug 2020	60	5	3	0	EV
Jul 2020	53	4	0	0	EV
Jun 2020	45	3	1	0	EV
May 2020	59	3	2	0	EV
Apr 2020	36	0	4	1	EV
Mar 2020	87	6	15	0	EV
Feb 2020	101	9	2	0	EV
Jan 2020	93	10	3	0	EV

Cancellation Rate

5.2%

34 of 653 flights

Diversion Rate

0.2%

1 of 653 flights

Explore origin & destination

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

IAH - Houston

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

Origin airport →

GPT - Gulfport/Biloxi

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

Destination airport →

Compare the two airports

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

Open comparison tool →

Similar routes

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

Routes with a similar on-time rate

FAT → SLC

Fresno to Salt Lake City

92.2% on-time

SBA → SLC

Santa Barbara to Salt Lake City

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PSC → SLC

Pasco/Kennewick/Richland to Salt Lake City

92.3% on-time

KOA → DEN

Kona to Denver

92.3% 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 IAH to GPT

Houston to Gulfport/Biloxi (IAH to GPT) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 92.2% on-time rate across 653 flights, with delays that do happen averaging 101.6 minutes. The corridor runs roughly 376 miles and is served by 3 carriers. Over the most recent 24 months, 34 of 653 flights were cancelled (5.2%) and 1 diverted (0.2%).

Monthly performance varies moderately here: May 2020 was the strongest month at 95% on-time versus Jan 2020 at 89%, a 6-point difference.

Frequently Asked Questions

How often are flights delayed from IAH to GPT? ▼

Flights from Houston to Gulfport/Biloxi have a 92.2% on-time rate based on 653 flights. The average delay is 101.6 minutes. The best recent month was May 2020 with 95% on-time.

What is the cancellation rate for IAH to GPT? ▼

Over the last 24 months, 5.2% of flights on this route were cancelled (34 of 653 flights) and 0.2% were diverted.

How far is the flight from IAH to GPT? ▼

The flight distance from Houston (IAH) to Gulfport/Biloxi (GPT) is approximately 376 miles. This route is served by 3 carriers.

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

The best recent month for on-time performance was May 2020 (95% on-time). The worst was Jan 2020 (89% 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

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Gulfport/Biloxi

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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.