Long Beach Airport (IATA: LGB, ICAO: KLGB, FAA LID: LGB) is a public airport 3 mi (4.8 km) northeast of downtown Long Beach, in Los Angeles County, California, United States. It is also called Daugherty Field, named after local aviator Earl Daugherty. The airport was an operating base for JetBlue, but this ended on October 6, 2020, as the carrier moved its operating base to Los Angeles International Airport (LAX), amidst the then-ongoing COVID-19 pandemic. Consequently, Southwest Airlines became the airport's largest airline.

The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport. Federal Aviation Administration records say the airport had 1,413,251 passenger boardings in calendar year 2008, 1,401,903 in 2009 and 1,451,404 in 2010.

Located near the border between Los Angeles County and Orange County, Long Beach Airport serves the Los Angeles MSA. Due to its close proximity to the busier and larger LAX 20 miles away, the airport sees more domestic commercial passenger, cargo, military, and general aviation activity. The airport's placement near many residential areas has led to it having one of the country's strictest ordinances limiting airport noise.

It is the 10th busiest airport in California based on passenger boardings, at 1.4 million. As of May 2025, Southwest operated the most airline flights out of Long Beach; the other airlines are Delta and Hawaiian. Air cargo carriers, including FedEx and UPS, also use LGB. 57,000 tons of goods are carried each year.

The Boeing Company (formerly McDonnell Douglas) maintains maintenance facilities for Boeing and McDonnell Douglas/Douglas aircraft (including the historic DC-9 and DC-10 aircraft) near the Long Beach Airport and produced the C-17 through 2015. The manufacturing facilities were leased to Mercedes-Benz and Relativity Space. Virgin Galactic established the satellite launch vehicles at the Long Beach Airport and operated by Virgin Orbit. Gulfstream Aerospace operates a completion/service center.

The Long Beach Airport has an aggressive noise abatement program, with three full-time noise specialists. The City of Long Beach can criminally prosecute the aircraft's owner and the pilots for breaking the noise ordinance. As the airport continues to grow and air traffic increases, so do the complaints about loud and low-flying aircraft. The airport produces a monthly noise and complaint report.

Because of the noise abatement program, commercial (passenger or cargo) flights have been restricted since 1981, when a limit of 15 daily flights was instituted. As of 2023, 41 daily flights are permanent, and 17 flights are supplemental (which are adjusted each year depending on noise budget results), for a total limit of 58 flights per day. However, many other types of flights take place, including charters, private aviation, flight schools, law enforcement flights, helicopters, advertising blimps, and planes that tow advertising banners. Long Beach airport is one of the busiest general aviation airports in the world, with 398,433 aircraft movements in 2007.

Long Beach Airport has one terminal in Streamline Moderne style that is a historical landmark and was renovated in early 2013.