Harry P Williams Memorial Airport (KPTN), Louisiana
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Harry P Williams Memorial (KPTN) serves Patterson, Louisiana with a single paved runway and an adjacent water runway used for dual land/sea operations, an uncommon combination in the region. The field sits about 63 nautical miles from the nearest metro area and is not towered, with fuel and CTAF-controlled lighting available for arriving traffic. Customs is available on a landing rights basis, requiring prior CBP permission rather than routine walk-up processing. Business aviation activity makes up the large majority of recorded operations at the airport.
Runways
Harry P Williams Memorial Airport has two runways. The longest, 06/24, is 5,399 ft long and 150 ft wide, with an asphalt surface.
Runway geometry from published threshold coordinates. Not for navigation.
Runways are listed longest first.
Source: FAA Form 5010.
Fuel and airfield services
Harry P Williams Memorial Airport has Jet A and 100LL available on the field. Fueling is available 24 hours a day, every day, and the airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Harry P Williams Memorial Airport has US Customs and Border Protection clearance available onsite, with general clearance for international arrivals.
Source: CBP list of ports of entry.
Business aviation traffic
Harry P Williams Memorial Airport recorded 243 business aviation movements in 2025. Traffic peaks in November. Business aviation traffic at KPTN concentrates in the later months of the year, with November, June, and October showing the highest operation counts recorded in 2025.
Business jet movements, FAA TFMSC count. Peak month November, 44 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Harry P Williams Memorial Airport averages 16.9 days above 90°F in July and 3.5 freeze days in January. July is the warmest month, with average highs of 90.5°F, and January the coldest, at 63.0°F.
Weather station is 8.6 NM from the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Harry P Williams Memorial Airport has published operating constraints in three categories: access, runway notes and other notes.
For clearance delivery, contact New Orleans Approach on 124.3.
Pilots conducting EFVS operations should be aware that an LED approach lighting system is in use on runway 24.
The MALSR lighting system for runway 24 is pilot-activated. MIRL lighting for runway 06/24 is preset to medium intensity, with higher intensity settings available via CTAF.
The approach ratio to the displaced threshold is 23:1.
A 4,500 by 100 foot waterway on a 04/22 heading is located 1,100 feet south of the paved runway, supporting dual land and sea operations.
Contact the airport manager for designated public-use ramp space.
Source: FAA Chart Supplement.
Nearby airfields
Harry P Williams Memorial Airport has five airfields within 45 NM. The closest is Acadiana Regional (KARA), 34.54 NM northwest.
Source: Skystar calculation from official coordinates.
Skystar at KPTN
We arrange catering, fuel and trip support here. Supplier prices reach you unchanged; our coordination fee sits on its own line.
The same order, priced two ways.
$1,200.00 catering order at KPTN.
Unchanged.
What the kitchen invoices us is what your quote reads.
One line, fixed.
It does not move with the size of the order.
At cost.
Passed on at the exact amount the processor took.
Market practice figures are industry averages, not a specific competitor.
Frequently asked questions
Is customs available on arrival at KPTN?
KPTN is a landing rights airport, meaning customs processing exists onsite but only with prior CBP permission arranged before arrival. There is no walk-up or on-demand customs clearance at Harry P Williams Memorial. Dispatchers should plan for advance coordination rather than treating this as a fully staffed customs port.
Does Harry P Williams Memorial have a water runway?
Yes, KPTN operates a 4,500 by 100 foot waterway on a 04/22 heading, located 1,100 feet south of the paved runway. This supports dual land and sea operations alongside the conventional 06/24 asphalt runway. It is a distinguishing feature for operators running seaplane traffic through Harry P Williams Memorial.
What is the runway length at KPTN?
The primary paved runway at Harry P Williams Memorial, designated 06/24, is 5,399 feet long and 150 feet wide with an asphalt surface. This is the airport's maximum paved runway length and defines the practical limit for fixed-wing arrivals. The parallel water runway offers a separate 4,500-foot option for seaplane operations.
How busy is KPTN with business aviation traffic?
Harry P Williams Memorial recorded 243 business aviation operations against 400 total annual operations in 2025, according to FAA TFMSC data. Monthly activity varied through the year, peaking at 44 operations in November and 38 in June, with a low near zero in February. This places KPTN in a moderate-traffic tier rather than a high-volume corridor.