Minneapolis–Saint Paul International Airport

Ground was broken for the current Terminal 1 building on October 26, 1958.[11] The US $8.5 million, 600,000 square foot (56,000 m²) terminal with 24 gates on two concourses was designed by Lyle George Landstrom.[12] who worked for Cerny Associates. The terminal, then referred to as the New Terminal, was completed on January 13, 1962, and operations began on January 21.[11][13] Pier D (formerly the Gold Concourse, now Concourse C) was completed in 1971 and Pier A (formerly the Green Concourse, now Concourse G) was completed in 1972 as part of an expansion of the terminal designed by Cerny Associates.[13][14] This project also involved rebuilding the existing concourses into bi-level structures equipped with holding rooms and jet bridges.[13] The Gold Concourse was expanded in 1986 and included the airport's first moving walkway.[11] Concourses A and B opened on June 1, 2002, as part of a $250 million terminal expansion designed by Minneapolis-based Architectural Alliance.[15] The final component of the project included a $17.5 million extension of Concourse C consisting of six additional gates, which opened on October 31, 2002.[16]

Terminal 2 was first built in 1986 and then rebuilt in 2001. It is used mostly for charter and low cost airlines, including Minnesota-based Sun Country and Southwest, but is also used for Condor, Icelandair and JetBlue. The terminal has since been expanded and has a total of 14 gates. The colored labeling system for concourses in both terminals was replaced beginning in 2000 with the current system of lettered concourses.

Due in part to aircraft noise in south Minneapolis, the Highland Park neighborhood in St. Paul, and surrounding suburbs, proposals were made in the 1990s to build a new airport on the fringes of the Twin Cities metro in Dakota County to handle larger jets and more international traffic.[17] Minneapolis, St. Paul, and other neighboring cities were concerned that such a move would have a negative economic impact, so an arrangement was made where the Metropolitan Airports Commission would outfit many homes in the vicinity of the airport with sound insulation and air conditioning so that indoor noise could be reduced. A citizen group named ROAR (Residents Opposed to Airport Racket) was created in 1998 and helped push the MAC to make these concessions. Later, in 2004, the MAC voted to reduce funding for the soundproofing projects, saying in part that the economic climate had turned in the wake of the September 11 attacks. Minneapolis Mayor R. T. Rybak, who had been a founding member of ROAR, promised that the city would challenge the changes. In 2005, the cities of Minneapolis, Eagan, and Richfield and the Minneapolis Public Housing Authority filed a lawsuit against the MAC, which was settled with a Consent Decree in 2007. The terms in the Consent Decree specified levels of sound insulation for homes within a fixed boundary of projected aircraft noise exposure around MSP. Upon the completion of the noise mitigation program in 2014, more than 15,000 single-family homes and 3,303 multi-family units around MSP were provided noise mitigation at cost of $95 million.[18]

A 2022 J.D. Power survey concluded that with ranking the largest US and Canadian airports on a 1,000 point scale based on traveler satisfaction, the airport received a score of 800, ranking it the best airport in the US and Canada. Minneapolis' high ranking was accredited to its recently-updated facilities.[19]

Delta A220-300 landing at MSP with a Delta 757-200 taxiing in the foreground.

Minneapolis–Saint Paul International Airport has two terminals with a total of 131 gates.[20] International arrivals are processed in Concourse G in Terminal 1, and in Terminal 2.[20]

• Terminal 1 contains 117 gates across seven concourses, lettered A–G.[20]
• Terminal 2 contains 14 gates across one concourse, lettered H.[21]

Minneapolis-St. Paul International Airport is the only major airport in the United States to have two terminals located on entirely separate roadway systems. Terminals 1 and 2 were originally named after Charles Lindbergh and Hubert Humphrey, respectively. In 2010, numeric designations were added to the names and highway signs and other way-finding aids related to MSP were updated in order to assist travelers in locating the terminals.[22][23]

The terminal buildings are directly located off of Minnesota State Highway 5. Several other major highways that border the airport are Minnesota State Highway 62, Minnesota State Highway 77, and Interstate 494.

Metro Transit operates bus route 54 to MSP. The bus stop is located at Terminal 1. Passengers arriving in Terminal 2 must take the light rail to the bus stop location.

The METRO light rail Blue Line[24] has stops at both the Hub Building Terminal 1 (Lindbergh Station) and Terminal 2 Humphrey Terminal (Humphrey Station). It connects the airport with downtown Minneapolis as well as with the Mall of America in nearby Bloomington and operates as a shuttle service between the two airport terminals. Travelers can use the rail line to go between the two sites at all times; it is the only part of the line that operates continuously through the night (the rest shuts down for about four hours early in the morning).[25] Two parallel tunnels for the line run roughly 70 feet (21 meters) below the airport and at 1.7 mi (2.7 km) in length are the longest tunnels on the route. The Terminal 1 station is the only underground station on the line, as the rails return to the surface near Terminal 2. Due to current concerns about terrorism, a great deal of effort went into ensuring that the tunnels are highly blast-resistant. The underground portion was the costliest section of the entire rail project.[26]

The Minneapolis–Saint Paul International Airport Joint Air Reserve Station at MSP is home to the 934th Airlift Wing (934 AW), an Air Force Reserve Command (AFRC) unit and the 133d Airlift Wing (133 AW) of the Minnesota Air National Guard. Both units fly the C-130 Hercules and are operationally-gained by the Air Mobility Command (AMC). The 934th consists of over 1,300 military personnel, of which approximately 250 are full-time Active Guard and Reserve (AGR) and Air Reserve Technician (ART) personnel. The 133rd is similarly manned, making for a total military presence of over 2,600 full-time and part-time personnel.

The 934 AW serves as the "host" wing for the installation, which also includes lodging/billeting, officers club, Base Exchange (BX) and other morale, welfare and recreation (MWR) facilities for active, reserve/national guard and retired military personnel and their families.