Portland International Jetport (IATA: PWM, ICAO: KPWM, FAA LID: PWM), locally known as the Jetport, is a public airport two miles (3 km) west of downtown Portland, Maine, United States. It is owned and operated by the City of Portland. A portion of the Jetport's property, including the main runway, is located within the neighboring city of South Portland. PWM covers 726 acres (293 ha) of land.

The airport is the busiest in the state. In 2024, the Jetport handled approximately 2.44 million passengers, setting a new annual record and continuing the growth trend that began when the airport first exceeded two million passengers in 2018.

The Jetport has benefited from service by low-cost carriers such as Southwest Airlines, JetBlue, Breeze Airways, and Frontier Airlines, as well as Portland's increased popularity as a tourist destination. Multiple carriers have expanded service to the airport in recent years, with United Airlines adding seasonal service to Houston in 2025 and Avelo Airlines beginning service to New Haven, Connecticut. A survey conducted in June 2011 found PWM to be the most affordable airport in the region, and the third-most-affordable in New England.

In October 2011, PWM completed a $75 million renovation and expansion of its terminal to allow more airline service and more amenities for passengers.