Question: What do Oakland International Airport and Stewart International Airport have in common?

Context paragraphs:
Provo Municipal Airport: Provo Municipal Airport (IATA: PVU, ICAO: KPVU, FAA LID: PVU) is a public airport two miles (3 km) west of Provo, in Utah County, Utah.  The airport hosts Allegiant Air flights to four airports, one in Arizona and three in California - Phoenix/Mesa Gateway Airport, Los Angeles International Airport, San Diego International Airport and Oakland International Airport.  It is the second busiest public airport in Utah by aircraft movements, with 172,000 aircraft operations in the year ending May 2007.

Oakland International Airport station: Oakland International Airport station is a Bay Area Rapid Transit (BART) station on the Coliseum–Oakland International Airport line in Oakland, California, United States.  This station is on the system's Automated Guideway Transit (AGT) spur line, which carries passengers between Oakland International Airport (OAK) and Oakland Coliseum Station.

Oakland Coliseum station: Oakland Coliseum is a complex of two train stations of two public transit providers that are within 600 ft of each other: Amtrak "Capitol Corridor"<nowiki>'</nowiki>s Oakland Coliseum station, Bay Area Rapid Transit (BART)'s Coliseum station with BART to Oakland International Airport automated guideway transit (AGT) terminal, also known as the Coliseum-Oakland International Airport line.  They are located in Oakland, California, United States, and are connected to each other, and to the Oakland Coliseum and the Oracle Arena by a pedestrian bridge.  BART and Capitol Corridor Joint Powers Authority (CCJPA), "Capitol Corridor"<nowiki>'s</nowiki> administration agency, refers to these separate stations as one station.

Stewart International Airport: Stewart International Airport (IATA: SWF, ICAO: KSWF, FAA LID: SWF) is a public/military airport in Orange County, New York, United States.  It is in the southern Hudson Valley, west of Newburgh, New York, approximately 60 mi north of Manhattan, New York City.  The airport is in the Town of Newburgh and the Town of New Windsor.  It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a non-hub primary commercial service facility.

Oakland International Airport: Oakland International Airport (IATA: OAK, ICAO: KOAK, FAA LID: OAK) is an international airport in Oakland, California, United States.  It is located approximately 10 miles south of Downtown.  It is owned by the Port of Oakland.  The airport has passenger service to cities in the United States, Mexico, and Europe.  Cargo flights fly to cities in the United States, Canada, and Japan.

Coliseum–Oakland International Airport line: The Coliseum–Oakland International Airport line, also known informally as the BART to OAK line, is an automated guideway transit (AGT) system operated by Bay Area Rapid Transit (BART) between BART's Coliseum Station and Oakland International Airport.  The system opened for revenue service on November 22, 2014 and is integrated into BART’s fare system.  During planning and construction, it was known as the Oakland Airport Connector (OAC) project.

Doolittle maintenance and storage facility: The Doolittle maintenance and storage facility (also known as “The Wheelhouse”) is the operations management center for the Coliseum–Oakland International Airport line.  The building is used for storage and maintenance of the Cable Liner cars, and is also the powerhouse for the system’s 12 ft drive wheels, and is an essential part of Bay Area Rapid Transit's Coliseum–Oakland International Airport line.

ATA Airlines: ATA Airlines, Inc. – formerly known as American Trans Air and commonly referred to as ATA – was an American low-cost scheduled service and charter airline based in Indianapolis, Indiana.  ATA operated scheduled passenger flights throughout the U.S. mainland and Hawaii and San Juan, Puerto Rico, as well as military and commercial charter flights around the world.  ATA also operated flights to Portugal (LIS, OPO, TER, PDL and SMA).  In its early days the airline did charters throughout the World and had bases in Chicago, Detroit, New York, Indianapolis, Oakland and Milwaukee.  Later when they entered scheduled service the airlines maintained focus cities at Chicago Midway International Airport, Honolulu International Airport, and Oakland International Airport.

FedEx Express Flight 1406: FedEx Express Flight 1406 was a cargo flight from Memphis International Airport, Memphis, Tennessee, to Logan International Airport in Boston, Massachusetts, when it suffered a cargo fire in-flight over New York.  The three crew members on board successfully made an emergency landing at Stewart International Airport, New Windsor.  After the evacuation, the DC-10 was consumed by fire.  After extensive investigation, the National Transportation Safety Board was unable to determine what caused the fire.  Nevertheless, the Federal Aviation Administration made recommendations to prevent similar incidents from occurring in the future.

Northern California TRACON: Northern California TRACON (NCT) (Terminal Radar Approach Control), or NorCal TRACON for short, is an air traffic control facility that provides safety alerts, separation, and sequencing of air traffic arriving, departing, and transiting the airspace and airports in Northern California.  Located in Rancho Cordova near Sacramento, NCT controls airspace over 19000 square miles, and serves Reno International Airport, Sacramento International Airport, San Jose International Airport, Oakland International Airport, and San Francisco International Airport, plus 19 other smaller airports with air traffic control towers.  NCT is the 3rd busiest TRACON in America.  NorCal TRACON is the step between local control (in an airport's control tower) and Air Route Traffic Control Center (ARTCC), in this case, Oakland Center (ICAO code: ZOA).  San Francisco International Airport is the 2nd largest airport in California and the largest airport serving Northern California.

Supporting paragraphs: Oakland International Airport Stewart International Airport
Answer: International Airport