PlainFlights

Route · ATL → GPT · 2020–2025 BTS data

Atlanta to Gulfport/Biloxi

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ATL to GPT (Atlanta to Gulfport/Biloxi) ranks #1646 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

88.1%
On-time
+9.1 pts
vs US avg
70 min
Delay when late
7,626
Flights
#1646 of 4927
Corpus placement

Cancelled

1.5%

Best Month

Nov 2024 98%

Worst Month

Jun 2025 66%

Distance

352 mi

Carriers

7

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 98 13 4 1 DL
Nov 2025 106 19 3 0 DL
Oct 2025 116 11 0 0 DL
Sep 2025 107 13 0 0 DL
Aug 2025 113 14 0 1 DL
Jul 2025 116 25 0 0 DL
Jun 2025 114 39 4 0 DL
May 2025 118 30 0 1 DL
Apr 2025 111 15 0 0 DL
Mar 2025 108 22 1 1 DL
Feb 2025 93 19 0 0 DL
Jan 2025 91 11 11 0 DL
Dec 2024 114 22 0 0 9E,DL
Nov 2024 104 2 0 0 DL,9E
Oct 2024 115 10 0 0 DL
Sep 2024 111 10 1 0 DL
Aug 2024 116 12 0 1 DL
Jul 2024 116 34 9 1 DL
Jun 2024 109 18 0 0 DL
May 2024 93 21 3 1 DL
Apr 2024 90 10 0 1 9E,DL
Mar 2024 93 6 0 1 DL
Feb 2024 87 5 0 1 DL
Jan 2024 92 11 2 2 9E,DL

ATL–GPT seasonal on-time pattern

Best: November (93.0%) · weakest: July (81.7%)

80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 88.2%

Strongest calendar month

November

93.0% on-time · ~106 flights/mo

Busiest calendar month

July

~113 flights/mo avg

Weakest calendar month

July

81.7% on-time · ~113 flights/mo

Cancellation Rate

1.5%

38 of 2,531 flights

Diversion Rate

0.5%

12 of 2,531 flights

Explore origin & destination

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

ATL - Atlanta

Full on-time, delay-cause, and seasonal performance for Atlanta, GA.

ATL 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 ATL and GPT side by side on delays, cancellations, and reliability.

Compare ATL vs GPT

Origin-hub reliability standing

Among ATL's stronger departures

ATL → GPT posts a 88.1% on-time rate, landing in the ≥85% band with 67 of 144 BTS-tracked routes leaving Atlanta. The same hub also shows 75 mid-band and 2 challenged departures · fleet-wide on-time rank #397 of 4927 (highest on-time = #1).

What the Data Says About ATL to GPT

Atlanta to Gulfport/Biloxi (ATL to GPT) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.1% on-time rate across 7,626 flights, with delays that do happen averaging 69.8 minutes. The corridor runs roughly 352 miles and is served by 7 carriers. Over the most recent 24 months, 38 of 2,531 flights were cancelled (1.5%) and 12 diverted (0.5%).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 98% on-time, while Jun 2025 came in at just 66% - a 32-point swing worth factoring into travel timing.

On the multi-year calendar, ATL–GPT peaks in November at 93.0% on-time while July carries the heaviest traffic (~113 flights per month) ; the softest month is July at 81.7%, a 11.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does ATL to GPT rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, ATL to GPT ranks #1646 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 ATL to GPT? ▼
Flights from Atlanta to Gulfport/Biloxi have a 88.1% on-time rate based on 7,626 flights. The average delay is 69.8 minutes. The best recent month was Nov 2024 with 98% on-time.
What is the cancellation rate for ATL to GPT? ▼
Over the last 24 months, 1.5% of flights on this route were cancelled (38 of 2,531 flights) and 0.5% were diverted.
How far is the flight from ATL to GPT? ▼
The flight distance from Atlanta (ATL) to Gulfport/Biloxi (GPT) is approximately 352 miles. This route is served by 7 carriers.
When is the best time to fly from ATL to GPT? ▼
The best recent month for on-time performance was Nov 2024 (98% on-time). The worst was Jun 2025 (66% on-time). Consider booking during months with historically better performance.

Airports on this route

ATL Airport

Atlanta
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 ATL–GPT data

ATL–GPT runs 9.1 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare ATL and GPT airport profiles: delay causes and top routes differ even on the same corridor. ATL airport
  • If your dates flex, November (93.0% on-time) beats July (81.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 88.1% 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.