Since the dawn of aviation, people have looked up to the skies to watch planes flying overhead. Planespotting has become the hobby of millions around the world, thanks to official and unofficial areas where people tend to gather to track and watch planes from gliders to the Boeing 747 jumbo jet.

Whether you're a die-hard aviation enthusiast or just one who enjoys watching planes, below are seven great spots across America to look at and photograph planes above.

Plane flying into Washington D.C. at sunset.

Washington Dulles International Airport

This international hub airport, 28 miles outside of the nation's capital, is well known for its embrace of plane spotters. Occasionally, the airport invites people, along with media, to special events with escorted access to the airport's four runways for the ultimate viewing experience. But there are also two other great spots to watch the parade of domestic and international jets taking off and landing at Dulles. The first place is the roof of the Daily Garage 2 parking lot on the north side of the facility. The second place is in the parking lot at the Smithsonian Air and Space Museum's Steven F. Udvar-Hazy Center. Pay $15 to enter the lot and plane spot outside and visit the museum to see planes including an Air France Concorde and the prototype of the Boeing 707 jet.

Ronald Reagan Washington National Airport

Arlington, Virginia's Gravelly Point Park, managed by the National Park Service, is one of the favorite plane spotting stops in the world. It earned this reputation because of how low aircraft fly on their final approach to the airport's Runway 1/19, surrounded by views of national monuments. Be sure to bring headphones or earbuds, because it gets really loud. The park also has a boat dock, picnic areas and a walking/running path to enjoy. Other great places to spot are the marina at Daingerfield Island and the balconies at the end of the airport's Terminals B and C.

LAX sign at Los Angeles International Airport

Los Angeles International Airport

Kill two birds with one stone here. Go to In 'N Out Burger, located on the east side of LAX at the intersection of Sepulveda Blvd and West 92nd Street, grab a meal (get your hamburger animal style), sit at a table and watch the parade of planes landing at Runway 24R. Other spotter locations include the airport's iconic Theme Building's observation deck, Imperial Hill between Cypress and Sheldon Streets and Clutter Park in El Segundo at the intersection of Imperial Avenue and Sheldon Street.

Minneapolis-St. Paul International Airport

Serious planespotters know all about the hidden spotting deck at Concourse D near the departure lounge. The bad news is you need a ticket or pass to get through airport security to enjoy it. But once there, spotters have stellar views of not only Concourses C, D and E, but also Runway 12L/30R. There are chairs around the deck for your comfort. If you can't get to the hidden deck, the airport also has a spotting area right next to FedEx's shipping center near the intersection of Runways 12R/30L and 4/22. The airport offers free parking, picnic tables and benches.

Departures entrance at San Francisco International Airport

San Francisco International Airport

Bayfront Park, located on the edge of the San Francisco Bay at Highway 101 and Marsh Road, has great views of aircraft on their final approach to Runway 1R. There are unpaved trails, benches, restrooms and a limited amount of free parking. Other spotting areas include the airport's Airtrain stations, the Long Term and West Field parking garages and the Anza Fishermen Park.

Fort Lauderdale-Hollywood International Airport

This airport is home to the Ron Gardner Aircraft Observation Area, located near the southwest corner of Perimeter Road on Southwest 39th Street. There's plenty of parking and most people sit in their cars to watch the parade of planes. The county's Aviation Department put in a solar-powered speaker system that allows visitors to hear conversations between pilots and the air traffic control tower, as well.

Airplane landing at McCarran International Airport in Las Vegas

McCarran International Airport

Las Vegas is home to the Sunset Viewing Area, south of the airport off Sunset Road. It's the perfect place to view planes arriving on Runway 25L and taking off on Runways 25R 7L and 7R. Another bonus -- if you set your radio to FM 101.1, you can hear conversations between air traffic controllers and pilots. There are also viewing areas at the long term green triangle parking garage and the Jack In The Box restaurant on Las Vegas Boulevard.

If you go

Visit united.com or use the United app to plan your plane spotting trip.