On July 27, 2015, Governor Andrew Cuomo, joined by then-Vice President Joe Biden, announced a $4 billion plan to rebuild the terminals as one contiguous building with terminal bridges connecting buildings.
 Airport officials and planners had concluded that the airport essentially had to be torn down and rebuilt.

Under the airport reconstruction plan disclosed in 2015, a single terminal building is to be constructed in stages, with a people mover, retail space and a new hotel.
Some 2 miles (3.2 km) of additional taxiways are to be built.
A people mover is to connect the new terminal sections, the Grand Central Parkway is to be reconfigured, and AirTrain LaGuardia, previously announced, will connect the airport to the Mets–Willets Point subway station and the Mets–Willets Point LIRR station.
A proposed high-speed ferry, if introduced, will service the Marine Air Terminal, a national historic landmark, which will remain intact.
An onsite tram has also been proposed to move passengers more quickly within the central terminal.
The new airport is to be eco-friendly and contain accommodations such as a hotel of approximately 200 rooms and a business/conference center.
The entire airport will move 600 feet (180 m) closer to the Grand Central Parkway.
New parking garages replaced parking facilities between the existing terminals and Grand Central Parkway, creating space for the new facilities.
By locating the terminals closer to the Grand Central Parkway, additional space for aircraft taxiways and hold areas will be created, reducing ground delays.
The runways themselves will not be reconfigured.

Construction of the project's first phase started in spring of 2016, once final plans were approved by the Port Authority board, with the entire redevelopment scheduled to be completed by 2021.
Terminal B will be demolished, and Delta will rebuild its terminals C and D in coordination with the plan.
The new airport will feature an island gate system, with passengers connecting between the terminal building and the gates via bridges that will be high enough for aircraft to taxi under.
In late March 2016, the comprehensive plans for the redevelopment were approved unanimously between the Port Authority of New York & New Jersey & LaGuardia Gateway Partners for the Terminal B Project.
Construction costs were estimated to range from $4 billion to $5.3 billion.
In August 2017, Magic Johnson Enterprises and Loop Capital created a joint venture named JLC Capital to invest in Phase 2 of LaGuardia Airport's reconstruction.
The same month, Delta broke ground on the last phase of the airport's reconstruction.

On December 9, 2017, six airlines moved at LGA.
Alaska Airlines and JetBlue moved to the Marine Air Terminal.
American consolidated in Terminal B. Frontier and Spirit depart from Terminal C and arrive at Terminal D. The first half of the seven-level West Parking Garage opened in February 2018, with 1,600 of 3,100 parking spaces being made available, and the rest of the garage was opened later that year.
Eleven new gates at Terminal B opened on December 1, 2018, and were used by Air Canada, American Airlines, and Southwest Airlines.
Five additional new gates opened on June 2, 2019, when United relocated most of its operations to the new concourse.
The new space included a concourse with a 55-foot-tall (17 m) ceiling, food concessions, an FAO Schwarz toy store, and an indoor play area.
Delta opened Concourse G on the eastern end of the airport on October 29, 2019.
Delta Shuttle flights moved to the Concourse G on November 16, 2019.
The new headhouse at Terminal B opened on June 13, 2020, along with the new connector to the Eastern Concourse.
On August 5, 2020, the first seven gates of the Western Concourse opened, with ten additional gates and the bridge connector scheduled to open at the end of 2021.
Delta is also planning to fast-track its renovation at Terminal C, with the Terminal C headhouse scheduled to open in 2021.
On July 27, 2015, Governor Andrew Cuomo, joined by then-Vice President Joe Biden, announced a $4 billion plan to rebuild the terminals as one contiguous building with terminal bridges connecting buildings.  Airport officials and planners had concluded that the airport essentially had to be torn down and rebuilt.
Under the airport reconstruction plan disclosed in 2015, a single terminal building is to be constructed in stages, with a people mover, retail space and a new hotel. Some 2 miles (3.2 km) of additional taxiways are to be built. A people mover is to connect the new terminal sections, the Grand Central Parkway is to be reconfigured, and AirTrain LaGuardia, previously announced, will connect the airport to the Mets–Willets Point subway station and the Mets–Willets Point LIRR station. A proposed high-speed ferry, if introduced, will service the Marine Air Terminal, a national historic landmark, which will remain intact. An onsite tram has also been proposed to move passengers more quickly within the central terminal. The new airport is to be eco-friendly and contain accommodations such as a hotel of approximately 200 rooms and a business/conference center. The entire airport will move 600 feet (180 m) closer to the Grand Central Parkway. New parking garages replaced parking facilities between the existing terminals and Grand Central Parkway, creating space for the new facilities. By locating the terminals closer to the Grand Central Parkway, additional space for aircraft taxiways and hold areas will be created, reducing ground delays. The runways themselves will not be reconfigured.
Construction of the project's first phase started in spring of 2016, once final plans were approved by the Port Authority board, with the entire redevelopment scheduled to be completed by 2021. Terminal B will be demolished, and Delta will rebuild its terminals C and D in coordination with the plan. The new airport will feature an island gate system, with passengers connecting between the terminal building and the gates via bridges that will be high enough for aircraft to taxi under. In late March 2016, the comprehensive plans for the redevelopment were approved unanimously between the Port Authority of New York & New Jersey & LaGuardia Gateway Partners for the Terminal B Project. Construction costs were estimated to range from $4 billion to $5.3 billion. In August 2017, Magic Johnson Enterprises and Loop Capital created a joint venture named JLC Capital to invest in Phase 2 of LaGuardia Airport's reconstruction. The same month, Delta broke ground on the last phase of the airport's reconstruction.
On December 9, 2017, six airlines moved at LGA. Alaska Airlines and JetBlue moved to the Marine Air Terminal. American consolidated in Terminal B. Frontier and Spirit depart from Terminal C and arrive at Terminal D. The first half of the seven-level West Parking Garage opened in February 2018, with 1,600 of 3,100 parking spaces being made available, and the rest of the garage was opened later that year. Eleven new gates at Terminal B opened on December 1, 2018, and were used by Air Canada, American Airlines, and Southwest Airlines. Five additional new gates opened on June 2, 2019, when United relocated most of its operations to the new concourse. The new space included a concourse with a 55-foot-tall (17 m) ceiling, food concessions, an FAO Schwarz toy store, and an indoor play area. Delta opened Concourse G on the eastern end of the airport on October 29, 2019. Delta Shuttle flights moved to the Concourse G on November 16, 2019. The new headhouse at Terminal B opened on June 13, 2020, along with the new connector to the Eastern Concourse. On August 5, 2020, the first seven gates of the Western Concourse opened, with ten additional gates and the bridge connector scheduled to open at the end of 2021. Delta is also planning to fast-track its renovation at Terminal C, with the Terminal C headhouse scheduled to open in 2021.
LaGuardia Airport