What the National Air and Space Museum is and where to find it

The National Air and Space Museum is a Smithsonian Institution museum in Washington, D.C. that holds aircraft, spacecraft, and related objects from the history of aviation and space exploration. The museum is free to enter. It sits on the National Mall at Independence Avenue and 6th Street SW, near the L'Enfant Plaza Metro station.

The museum operates two buildings: the main museum on the Mall and the Udvar-Hazy Center near Washington Dulles International Airport in Virginia. Most visitors go to the main building first, which is where the most famous objects are displayed — including the Wright Flyer, the Apollo 11 command module, and the Space Shuttle Discovery.

The Smithsonian Institution runs the museum as part of the federal government's collection of public museums. You do not need a ticket or reservation to enter the main building, though the museum does sometimes close for special events or maintenance.

Key Takeaways

  • The main museum building on the National Mall is free and does not require a ticket, but hours and access can change due to closures or events.
  • The museum is busiest in the afternoon and on weekends, so arriving early in the morning gives you more space to move through exhibits.
  • The Udvar-Hazy Center near Dulles Airport holds large aircraft like the Space Shuttle Discovery and the Enola Gay, and also charges no admission.
  • Parking on the National Mall is limited and expensive; public transit via Metro is faster and cheaper than driving.
  • The museum's website shows current hours, any closures, and which exhibits are open before you visit.

Hours, admission, and how to check before you go

The main museum building is open most days from 10 a.m. to 5:30 p.m., though hours change seasonally and the museum sometimes closes for maintenance or special events. There is no admission charge. You do not need to reserve a time slot or buy a ticket in advance for the main building.

Before you visit, check the Smithsonian Institution's website for the National Air and Space Museum. The site shows current hours, any closures, which galleries are open, and whether special exhibitions are running. Hours can shift without notice, so checking the day before or the morning of your visit prevents a wasted trip.

The Udvar-Hazy Center operates on different hours than the main building — typically 10 a.m. to 5:30 p.m. as well, but you should confirm on the website. This location also charges no admission.

Getting there by Metro, car, or other transit

The easiest way to reach the main museum is the Metro. The L'Enfant Plaza station on the Blue, Orange, Silver, and Green lines is a five-minute walk from the museum entrance. If you are coming from outside D.C., you can take the Metro from Union Station or from any other station on the system.

Parking on the National Mall is scarce and costs $15 to $25 per day at nearby lots. Street parking is metered and fills quickly. If you drive, plan to arrive early or use a parking app like SpotHero to reserve a spot in advance.

The Udvar-Hazy Center is located at 14390 Air and Space Museum Parkway, Chantilly, Virginia, near Dulles Airport. It is harder to reach by public transit; most visitors drive or take a rideshare. If you use public transit, the Silver Line Metro goes to Dulles, but you will need a shuttle or taxi from there to the museum.

What to expect inside the main building

The main museum has two floors of galleries organized by theme: the Wright brothers and early flight, commercial aviation, World War II aircraft, space exploration, and planetary science. Each gallery has the actual aircraft or spacecraft on display, along with text panels, videos, and interactive exhibits that explain what you are looking at.

The most crowded galleries are those with the most famous objects — the Apollo to the Moon section, where you can see the Apollo 11 command module and lunar samples, and the Destination Moon exhibit. These areas are packed in the afternoon and on weekends. If you want to spend time reading and looking closely, go early in the morning.

The museum provides benches and seating throughout, and there is a cafeteria on the first floor. Restrooms are on both floors. The building is large — you can easily spend three to four hours there, though you can also move through it more quickly if you focus on specific galleries.

The Udvar-Hazy Center and what it holds

The Udvar-Hazy Center is a separate building near Dulles Airport that houses large aircraft that do not fit in the main museum. The most notable objects are the Space Shuttle Discovery, the Enola Gay (the B-29 bomber that dropped the atomic bomb on Hiroshima), and the Concorde supersonic jet. The building is a single large hangar with aircraft suspended from the ceiling and walls.

The Udvar-Hazy Center is less crowded than the main building and gives you a different view of aviation history — focused on large military and commercial aircraft rather than the history of spaceflight. It is worth a visit if you have time, but it requires a separate trip since it is in Virginia, about 30 miles from the main museum.

Admission to the Udvar-Hazy Center is free, but parking costs $15. The center is open the same hours as the main building most days, though you should check the website to confirm.

What to bring and how to prepare

Bring comfortable walking shoes. The museum is large and you will be on your feet for hours. The building is climate-controlled, so dress for indoor temperature.

Bring water and snacks if you prefer not to use the cafeteria. Outside food and drink are allowed in the museum. The cafeteria serves sandwiches, salads, and hot food at typical museum prices — expect to pay $12 to $18 for a meal.

Photography is allowed throughout the museum without flash. If you want to learn more about specific objects, read the Smithsonian's free mobile app, which has audio guides and additional information about major exhibits. The app works on Wi-Fi inside the building.

If you are visiting with children, the museum has family guides and interactive stations designed for younger visitors. Ask at the information desk for a family guide when you arrive.

Planning your route through the galleries

The main building has a logical flow, but you do not have to follow it. The first floor holds early aviation history, World War II, and commercial aviation. The second floor focuses on space exploration and planetary science. Most visitors start on the first floor and work their way up, but you can enter at any gallery.

If you have limited time, prioritize the galleries you most want to see. The Apollo to the Moon and Destination Moon exhibits are the most popular and draw the biggest crowds. The early aviation galleries and the World War II section are less crowded and give you more room to look at the aircraft.

The museum provides free maps at the entrance. Pick one up and mark the galleries you want to visit. This helps you avoid backtracking and makes the most of your time.

Frequently Asked Questions

Do I need to buy a ticket in advance?

No. The main museum building is free and does not require a ticket or reservation. You can walk in during operating hours without planning ahead. The Udvar-Hazy Center is also free and does not require a ticket, though parking costs $15.

Can I bring my own food and drinks?

Yes. Outside food and drinks are allowed throughout the museum. There is also a cafeteria on the first floor if you prefer to purchase food there. Alcoholic beverages are not allowed.

Is the museum accessible for people with mobility issues?

Yes. The main building has elevators, accessible restrooms, and wheelchair rental available at the information desk. The Udvar-Hazy Center is also accessible, though the large hangar space means you may need to walk or use a wheelchair to see all the aircraft. Call ahead if you have specific questions about accessibility.

How long should I plan to spend at the museum?

Most visitors spend two to four hours at the main building, depending on how closely they look at exhibits and how crowded it is. You can move through it more quickly if you focus on specific galleries. The Udvar-Hazy Center typically takes one to two hours.

What is the best time to visit to avoid crowds?

Weekday mornings, especially Tuesday through Thursday before noon, are the least crowded. Afternoons and weekends are busy year-round. Summer and school holidays draw the largest crowds. If you can visit on a weekday morning, you will have more space and shorter lines at the cafeteria.