Question: Which airport is actually located within the boundaries of the city it serves, St. George Regional Airport or LaGuardia Airport?

Context paragraphs:
St. George Regional Airport: St. George Regional Airport (IATA: SGU, ICAO: KSGU, FAA LID: SGU) is a city-owned, public-use airport located five nautical miles (5.8 miles; 9.3 km) southeast of the central business district of St. George, a city in Washington County, Utah, United States.

Southwest Airlines Flight 345: Southwest Airlines Flight 345 was a scheduled flight from Nashville International Airport to New York City's LaGuardia Airport on July 22, 2013.  The Boeing 737 suffered a collapse of its front landing gear while landing at LaGuardia Airport, injuring 9 people on board.  The aircraft, which was worth an estimated $15.5 million at the time, was written off as a total loss and scrapped as a result of the accident.

Utah State Route 34: State Route 34 (SR-34) is a short state highway in the city of St. George in southwestern Utah that connects Bluff Street (SR-18) to River Road while providing a connection to I-15.  The route runs two miles (more than three kilometers) through St. George on St. George Boulevard.  SR-34 was a portion of US-91 when it passed through the city, and serves as the northern part of the St. George Business Loop for I-15; Bluff St. (SR-18) from Interstate 15's Exit 6 to St. George Blvd. serves as the southern half.

Delta Air Lines Flight 1086: Delta Air Lines Flight 1086 (DL1086/DAL1086) was a scheduled Delta Air Lines domestic passenger flight between Atlanta and New York's LaGuardia Airport.  On March 5, 2015, the McDonnell Douglas MD-88 aircraft veered off the runway shortly after landing at LaGuardia Airport in New York City.  The plane ran up the seawall berm and struck the perimeter fence, sliding along it for approximately 940 ft before coming to rest with the nose of the aircraft hanging over the berm above Flushing Bay.  There were no fatalities, although 24 people suffered minor injuries.  The aircraft was seriously damaged.

Marine Air Terminal: The Marine Air Terminal ("Terminal A"), located at New York City's LaGuardia Airport, is the only active airport terminal dating from the first generation of passenger travel in the United States, a.k.a. the "Golden age of the flying boat."  Originally built to handle seaplanes, the Marine Air Terminal, an Art Deco building designed in 1939 by William Delano of the firm Delano & Aldrich, consists of a central circular core of two stories with an attic, from which a rectangular entrance pavilion and two symmetrically opposed one-story wings project.  In LaGuardia Airport's overall terminal naming scheme, the Marine Air Terminal is called "Terminal A".

St. George Municipal Airport: St. George Municipal Airport (IATA: SGU, ICAO: KSGU, FAA LID: SGU) was a public airport in St. George, serving southern Utah, until 13 January 2011.  It was used for general aviation and by St. George-based SkyWest Airlines on behalf of Delta Air Lines and United Airlines.  SkyWest has served St. George since its founding in 1972.  SkyWest, which is now one of the largest regional airlines in the world, continues to be based in St. George.

M60 (New York City bus): The M60 Select Bus Service is a bus route in New York City, United States.  It is part of MTA Regional Bus Operations, operated by the Manhattan and Bronx Surface Transit Operating Authority (MaBSTOA) under the New York City Transit brand.  The M60 provides service between the Upper West Side of Manhattan and LaGuardia Airport in East Elmhurst, Queens, traveling between boroughs via the Robert F. Kennedy-Triborough Bridge.  It is the only direct public transit option between Manhattan and LaGuardia Airport.

1975 LaGuardia Airport bombing: The 1975 LaGuardia Airport bombing occurred at 6:33 pm on Monday, December 29, 1975, near the TWA baggage reclaim terminal in LaGuardia Airport in East Elmhurst, New York City.  The blast killed 11 and seriously injured 74.  The bombing was never solved, with several suggested perpetrators, although investigators and historians believe that Croatian nationalists were the most likely.  The attack occurred in a four-year period of heightened terrorist attacks within the United States.  1975 was especially volatile, with bombings in New York City and Washington D.C. early that year and two assassination attempts on US President Gerald Ford.

Utah State Route 7: State Route 7 (SR-7), also known as Southern Parkway, is a state highway in Washington County in the extreme southwestern portion of Utah, United States.  It connects the southern periphery of St George to Hurricane, while providing access to the St. George Regional Airport.

LaGuardia Airport: LaGuardia Airport (IATA: LGA, ICAO: KLGA, FAA LID: LGA) is an airport in the northern part of the New York City borough of Queens in the United States.  It is on the waterfront of Flushing and Bowery Bays in East Elmhurst and borders the neighborhoods of Astoria and Jackson Heights.  The airport is the third busiest airport serving New York City, and the twentieth busiest in the United States.  LaGuardia Airport covers 680 acre .

Supporting paragraphs: St. George Regional Airport LaGuardia Airport
Answer: LaGuardia Airport