Dunn County Weydahl Field (9Y1), North Dakota
Landing essentials
Whether you can land, whether you can refuel, and how customs works here.
Overview
Dunn County Weydahl Field (local identifier 9Y1) serves Killdeer, North Dakota, with a single paved runway and no control tower. The airport sits in rolling terrain near the Killdeer Mountains and supports general aviation and business traffic in an area with no on-field customs service, with the nearest customs-equipped airport located at KXWA. Fuel is available on a self-service basis, and pilots operate under uncontrolled-field procedures using the common traffic advisory frequency.
Runways
Dunn County Weydahl Field has one paved runway, 13/31, 4,200 ft long and 60 ft wide, with an asphalt surface.
Source: FAA Form 5010.
Fuel and airfield services
Dunn County Weydahl Field has Jet A+ and 100LL available on the field. The airport has no control tower.
Source: FAA Form 5010 / NASR.
Customs
Dunn County Weydahl Field does not clear customs. The nearest port of entry is Williston Basin International (KXWA), 65 NM away.
Source: CBP list of ports of entry.
Business aviation traffic
Dunn County Weydahl Field recorded 52 business aviation movements in 2025. Traffic peaks in May and June. Business aviation activity at 9Y1 is concentrated in the late spring and early summer months, with May and June each recording the highest monthly operations counts of the year.
Business jet movements, FAA TFMSC count. Peak month May, 13 movements in 2025.
Source: FAA TFMSC, business jet movements, 2025.
Climate
Dunn County Weydahl Field averages 8.7 days above 90°F in July, 30.9 freeze days in January and 2.6 snow days in January. August is the warmest month, with average highs of 83.5°F, and January the coldest, at 26.6°F.
Weather station is on the field. Some values are estimated by the agency. 1991–2020 climate normals.
Source: NOAA NCEI.
Operating constraints
Dunn County Weydahl Field has published operating constraints in four categories: access, runway notes, environmental and other notes.
Terrain rises approximately 500 feet at the Killdeer Mountains, located 5 nautical miles northwest of the airport.
A cell tower approximately 270 feet tall is located about 2.1 nautical miles southeast of runway 31.
Pilot-activated PAPI serves runways 13 and 31; medium intensity runway lighting for runway 13/31 is also pilot-activated via CTAF.
Deer and birds are present on and in the vicinity of the airport.
Self-service fuel is available 24 hours a day via credit card, or by contacting the airport manager.
To confirm snow removal status, contact the airport manager.
For clearance delivery, contact Minneapolis Air Route Traffic Control Center.
Source: FAA Chart Supplement.
Nearby airfields
Dunn County Weydahl Field has four airfields within 49 NM. The closest is Watford City Municipal, 30.91 NM northwest.
Source: Skystar calculation from official coordinates.
Skystar at 9Y1
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 9Y1.
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 there customs service at 9Y1?
Dunn County Weydahl Field (9Y1) has no customs service on site. The nearest customs-equipped airport is KXWA, located approximately 65.39 nautical miles away. Dispatchers arranging international arrivals should plan clearance through that facility rather than expecting on-field processing at 9Y1.
What runway does Dunn County Weydahl Field offer?
Dunn County Weydahl Field (9Y1) has one paved runway, designated 13/31, measuring 4,200 feet long and 60 feet wide with an asphalt surface. This is the airport's only runway, and its length matches the airport's maximum paved runway distance of 4,200 feet listed for the field.
What fuel is available at 9Y1?
9Y1 offers 100LL and jet fuel (A+), available on a self-service basis around the clock via credit card. Pilots needing an alternative arrangement can contact the airport manager directly. There is no attended fuel service, as the field is otherwise unattended.
Are there wildlife or obstruction hazards near KILLDEER's Dunn County Weydahl Field?
Yes. Deer and birds are reported on and in the vicinity of the airport at Dunn County Weydahl Field. Pilots should also note terrain rising 500 feet near the Killdeer Mountains 5 nautical miles northwest of the field, and a cell tower approximately 270 feet tall about 2.1 nautical miles southeast of runway 31.