PlainFlights

Route · IAH → GPT · 2020–2025 BTS data

Houston to Gulfport/Biloxi

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to GPT (Houston to Gulfport/Biloxi) ranks #4761 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

92.2%
On-time
+13.2 pts
vs US avg
102 min
Delay when late
653
Flights
#4761 of 4927
Corpus placement

Cancelled

5.2%

Best Month

May 2020 95%

Worst Month

Jan 2020 89%

Distance

376 mi

Carriers

3

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

IAH–GPT seasonal on-time pattern

Best: April (100.0%) · weakest: January (89.2%)

85%90%95%100%105% JanFebMarAprMayJunJulAugSepOct 90.3%

Strongest calendar month

April

100.0% on-time · ~36 flights/mo

Busiest calendar month

February

~101 flights/mo avg

Weakest calendar month

January

89.2% on-time · ~93 flights/mo

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.

IAH on-time profile

GPT - Gulfport/Biloxi

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

GPT on-time profile

Compare the two airports

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

Compare IAH vs GPT

Origin-hub reliability standing

Among IAH's stronger departures

IAH → GPT posts a 92.2% on-time rate, landing in the ≥85% band with 17 of 102 BTS-tracked routes leaving Houston. The same hub also shows 79 mid-band and 6 challenged departures · fleet-wide on-time rank #40 of 4927 (highest on-time = #1).

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.

On the multi-year calendar, IAH–GPT peaks in April at 100.0% on-time while February carries the heaviest traffic (~101 flights per month) ; the softest month is January at 89.2%, a 10.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAH to GPT rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, IAH to GPT ranks #4761 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
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.

Airports on this route

IAH Airport

Houston
GPT Airport

Gulfport/Biloxi
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.

Using IAH–GPT data

IAH–GPT runs 13.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare IAH and GPT airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
  • If your dates flex, April (100.0% on-time) beats January (89.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 92.2% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

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

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.