Dulles International Airport Map and Guide - NerdWallet (2024)

Dulles International Airport (IAD) is one of three airports servicing the U.S. capital. It is situated about 26 miles outside Washington, D.C., in the Northern Virginia suburbs.

Compared to its counterpart in Virginia, Ronald Reagan Washington National Airport, Dulles’ footprint is at least 12 times larger, sitting on more than 11,000 acres.

Washington-Dulles is known for its vast international flight options, for being a major United Airlines hub, and for its iconic main terminal, designed by well-known architect Eero Saarinen (the same architect who brought the New York-JFK terminal that’s now the TWA hotel to life).

Washington-Dulles is comprised of a main terminal building which features ticketing, security and a small set of “Z” gates, plus baggage claim and customs on the bottom floor.

There are two separate midfield terminals that run parallel to the main terminal: one long building housing the A and B concourses, and another housing the C and D concourses.

Map of IAD terminals

The Washington-Dulles main terminal building is the immediately-recognizable structure most people think of when picturing the airport, with its vaulted ceiling and all-glass facade.

Inside, the building is huge, spanning 1.1 million square feet, and is close to a quarter-mile in length.

The main terminal is divided two floors: departures upstairs and arrivals downstairs.

Upper level

Inside the main terminal on the upper level, there are four large islands with ticket counters for domestic and international airlines.

All passengers pass through security in the main terminal, so if you’re a Clear member, you’ll be able to use the service no matter which airline you’re flying.

The standard TSA checkpoint is downstairs.

Once you pass through security, you’ll catch the Aerotrain or people movers to your specific departure terminal.

Downstairs

Downstairs on the arrivals level is baggage claim with 15 carousels, as well as the airport’s customs facilities, which include Global Entry access.

Food options

Retail

Lounges

The main terminal building houses a brand new Capital One Lounge just beyond the TSA PreCheck lanes.

Since Dulles operates out of three main terminal buildings, travelers have to take transportation to move between each.

Aerotrain

The most convenient option is the Washington-Dulles Aerotrain, an automated train system that runs between a few of the terminals. It’s usually a quick ride, with a maximum of two minutes between stations.

You can take the Aerotrain if you have a flight in the A gates, B gates or C gates. However, note that it is a decent walk from the station to the C gates.

People movers

One of Dulles’ best-known quirks is its “mobile lounges,” or “people movers.” These Star Wars-esque machines haven’t entirely been phased out with the Aerotrain.

Inside, the people movers feel like a combination of a waiting room and a bus, and they take passengers from one terminal to another.

You’ll typically ride the people movers if you’re:

Passenger walkway

If you’d rather get some steps in, there’s also a 1,000-foot underground pedestrian walkway that connects the main terminal with Concourse B, featuring moving sidewalks in both directions.

Airlines

Lounges

Other amenities

Airlines

Lounges

Other amenities

Airlines

Lounges

United has four lounges in Concourse C:

Other amenities

Airlines

Lounges

A ‘bonus’ concourse of sorts, Dulles has a small handful of Z gates located in the main terminal building. A mix of airlines service these gates, and the only food and beverage options are Dunkin and Subway.

Washington-Dulles has several parking options. The priciest are right near the terminal and in garages, and the most affordable is a cheaper, satellite economy lot requiring a shuttle. You can reserve your parking online or take your chances of finding a free spot at the airport.

Terminal parking

Garage 1 or Garage 2 Parking

Economy parking

To get to and from the rental car facilities, you’ll have to take one of the airport’s free shuttle buses, a few minutes’ ride.

Dulles has most major rental car companies, including:

Dulles has direct access to the Washington Metro system via the Silver Line station. It’s located opposite the main terminal, across the terminal parking parking facilities. You’ll take an underground path with moving walkways to get to the Silver Line station.

From there, you can catch a Metro train that will take you through Tyson’s Corner, and eventually through Rosslyn and into downtown D.C. Metro’s trip planner shows it’s a ride of more than 50 minutes to Metro Center, a key connecting station in downtown D.C.

Check Metro’s website for information on hours of operation and fares.

Customers hoping to use a rideshare service like Uber and Lyft when they get off the airplane can be picked up on the arrivals level outside baggage claim outside Doors 2, 4 and 6.

(Top photo courtesy of Sean Cudahy)