Which airport code is associated with Portland, Maine?

The airport code associated with Portland, Maine, is PWM. This code is derived from the city name, with "P" representing Portland and "WM" representing the region of Maine. Each airport has a unique code that is typically three letters long, which helps in the identification of airports in travel and logistics.

The other codes provided correspond to different airports in other locations; for example, SRQ is the airport code for Sarasota, Florida, RDU is Raleigh-Durham International Airport in North Carolina, and RSW is for Southwest Florida International Airport. By identifying PWM as the correct airport code for Portland, Maine, one can clearly recognize how the codes are utilized in air travel to simplify booking, planning, and travel itineraries.