Williston Basin International Airport (IATA: XWA, ICAO: KXWA, FAA LID: XWA) is an airport serving Williston, a city in the U.S. state of North Dakota. It is located 9 nautical miles (17km) northwest of the city.^[2]

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Williston Basin International Airport
IATA: XWA ICAO: KXWA FAA LID: XWA
Summary
Airport type	Public
Owner/Operator	City of Williston, North Dakota[1]
Serves	Williston, North Dakota
Opened	October 10, 2019
Elevation AMSL	2,353 ft / 717 m
Coordinates	48°15′35″N 103°45′02″W
Website	www.flywilliston.net
Map
XWA Show map of North Dakota XWA Show map of the United States
Runways
Direction Length Surface ft m 04/22 4,502 1,372 Concrete 14/32 7,503 2,287 Concrete
Statistics (2020)
Passenger volume 62,000 Scheduled flights 1,153 Based aircraft (2022) 32
Source: Federal Aviation Administration,[2] BTS[3]

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Williston Basin Airport has two runways and a 110,000-square-foot (10,000 m²) terminal building. It was built to replace Sloulin Field International Airport, which previously served Williston and had experienced difficulty dealing with the increase in air traffic to Williston amid the North Dakota oil boom. The airport opened to the public on October 10, 2019.^[4]

The airport previously serving Williston was Sloulin Field International Airport. Sloulin Field Airport dealt with design concerns, constraints on expansion, and the need for runway works. In addition, the airport had difficulty coping with a significant rise in air traffic amid the North Dakota oil boom.^[5]

In 2011, officials began to consider either making renovations to Sloulin Field or building a new airport.^[6] The cost of refurbishments was less than that of constructing a new airport; however, officials determined that building a new airport was the cheaper option. Not having to limit air service to Williston during construction at Sloulin Field would save revenue, and the city would gain from decommissioning the old airport and selling the land.^[7] The total cost of the project was $240 million, which was paid by the FAA, the state of North Dakota, and the city of Williston.^[8]

A groundbreaking ceremony took place on October 10, 2016, with several members of the state government in attendance.^[6] Procedural and weather-related problems delayed the start of construction to mid-2017.^[9] The airport opened to the public on October 10, 2019, with short-haul service to Minneapolis/St. Paul by Delta Connection and Denver by United Express.^[10] Shortly after the airport's opening, both carriers began using larger regional jets accommodating up to 76 passengers on some flights as compared to smaller 50-seat planes used previously in Williston.^[11]

XWA covers 1600 acres (647 ha) of land. The airport opened with one runway, 14/32, with dimensions of 7,503 by 150 feet (2,287 m × 46 m).^[12][13] A crosswind runway, 4/22, which measures 4,502 by 75 feet (1,372 m × 23 m), was opened on November 5, 2020 and is mainly intended for use by smaller aircraft.^[14]

The terminal occupies 110,000 square feet (10,000 m²) and has four gates, three of which have jet bridges.^[8] It can handle up to 350,000 passengers annually.^[6]

At the end of 2022, there were 32 aircraft based at this airport: 25 single-engine, 5 multi-engine, and 2 helicopter. Currently, the FAA does not have any published aircraft operations data for this airport.^[2]

Williston Basin International Airport is located about 10 miles (16 km) northwest of Williston.^[15] A 2-mile (3.2 km) road was built to connect the airport to the U.S. Route 85 truck bypass.^[16][17]

• List of airports in North Dakota