United Airlines IAD Terminal – Washington Dulles International Airport

  • +1-800-864-8331
  • Main Terminal, 1 Saarinen Cir, Dulles, VA 20166, United States
  • https://www.united.com/

Note: This is not airlines official number +1-844-986-2534. It may connect you with travel agency.

United Airlines IAD Terminal - Washington Dulles International Airport

Washington Dulles International Airport is the 4th largest airport in the US in terms of area and is one of the three major airports that serve the Washington-Baltimore metropolis area. It handles 90% of the international traffic in the region and serves as a fortress hub for United Airlines. United operates all services to and from Concourses C and D, making IAD a hub for the carrier.

IAD United Terminal is the query of most passengers who are planning to fly with United Airlines from Washington Dulles Airport. Here, you will learn all about United Terminal in Dulles from general information to the parking areas.

Dulles Airport United Airlines Terminal – Basic Details

Below is the table containing a quick overview of the key details like airport address, arrival, and departure terminal & more. Travelers must know these basic details before flying through United Airlines IAD Terminal-

AirportWashington Dulles International Airport
Airport Address1 Saarinen Cir, Dulles, VA 20166, United States
Airport Contact Number+1 703-572-2700
Airlines OperatingUnited Airlines
Official Websitewww.united.com
Contact Number of United Airlines IAD Terminal+1-800-864-8331
United Arrival & Departure Terminal at Dulles AirportConcourse C and D (Main Terminal)
United Airlines Check-in Counter in Washington DullesMain Terminal
United Check-in Counter Hours at Dulles AirportSun – Fri: 3:45 a.m. – 8:00 p.mSat: 3:45 a.m. – 6:00 p.m.

Which Terminal is United Airlines at the IAD?

IAD features one main terminal building located outside the secure area, along with four airside concourses running parallel to the terminal. United Airlines operates at Concourses C & D in the main terminal at Washington Dulles International Airport. For all codeshare flights with Air Canada, United Airlines flyers may head to Concourse Z.

Concourse C and D are located in the south midfield terminal, where Concourse C hosts United flights only and Concourse D is home to United. Concourse C consists of 23 gates (namely, C1 to C9, C11 to C12, C14, C17 to C20, C22 to C24, and C26 to C28), and Concourse D consists of 27 gates numbered from D1 to D8, D10 to D12, D14 to D16, D18 to D21, D23 to D27, D29 to D30, and D32. If you’re flying into the IAD United terminal from any international destination, you can always go through gates C1 to C14 for your arrival.

United Airlines Arrival and Departure Terminal at IAD

United Airlines operates out of Dulles Airport main terminal Concourse C and D for both arrivals and departures.

Flyers can use any gate at Concourse C and D for domestic and international departures. If you’re arriving at the IAD United terminal from any international route, you must go through gates C1 to C14.

How early should one arrive at the IAD Terminal for United Airlines?

For all domestic flights, flyers must reach the IAD Airport United terminal 60-90 minutes before departure if carrying checked baggage or traveling with any special request. Similarly, international passengers must arrive at the IAD airport 3 hours before scheduled departure. 

Below is the table highlighting the estimated arrival time and check-in cut-off time:

Type of FlightsEstimated Arrival TimesCheck-in Cut-Off Time without bagsCheck-in Cut-Off Time with bags
US Domestic Flights 2 hours before departure 45 minutes before departure 30 minutes before departure 
International Flights to/From USA3 hours before departure 60 minutes before departure 60 minutes before departure 

During peak travel season, there are long lines. So, you need to plan to arrive early for extra time.

How to book a flight at IAD United Terminal?

To book a flight at IAD United terminal, you can follow these steps – 

  • Visit the Dulles Airport United Airlines terminal ticket counter at Concourse C.
  • The airline staff will assist you with the booking process.
  • Provide your travel details and select the flight you wish to travel for.
  • Add any special requests, seat selections, and meals for your journey.
  • Add checked baggage allowance to your flight ticket.
  • Pay the required fee. You can pay cash or through a card or United Miles.
  • Once the payment is made, complete the check-in and ask the United Flight representative to add the baggage tag.

Remember, flyers booking a last-minute flight ticket must complete the purchase 3 hours before the scheduled departure.

How to get a boarding pass at IAD Airport United Terminal?

You can request United Airlines check-in at the IAD United Terminal which opens the boarding process 3 hours before the departure from Concourse C and D. You need to carry the photo ID/passport alongside the booking confirmation number.

To speed up the check-in and boarding process at the airport, use a self-service kiosk at the IAD Airport United Airlines Terminal.  It can be used by both domestic and international travelers. 

  • Head to the kiosk and tap on the Check-in link.
  • Enter your booking reference or 13-digit ticket number.
  • Confirm your flight details. 
  • Scan your passport to proceed.
  • Select the seats for your flights.
  • Follow other guidelines if required.
  • Request the boarding pass and head to the security checkpoint.

The airline offers self-service check-in kiosks at selected airports only. Mostly you will find self-service kiosks at its primary hubs. For instance, you can access one at the United Airlines Office in Houston, Texas

Are pets allowed to travel through the United Terminal IAD?

Yes, pets are allowed to travel through the United IAD terminal. United Airlines allows pets to travel inside the cabin. The other guidelines include:

  • They must travel in a hard-sided or soft-sided container. 
  • For domestic travel, pets must be 2 years old and for international travel, they must be 4 years old. 
  • Pets are only accepted to travel inside the carrier.

How to book pet travel with United Airlines?

Follow one of the three methods discussed below – 

  • You can add a pet at the time of booking online. Select ‘Pet Travel’ as an add-on service, and pay 125 USD as a pet travel fee at the checkout page. This fee is assessed on top of the booking cost.
  • Flyers can also add pets to their existing reservation via the My Trips tab. You can add pets up to 24 hours before scheduled departure.
  • At IAD United Terminal, you can add pets up to 3 hours before departure. Please carry pet health documentation to ease the travel process.

What are the shop & dining options at United Airlines IAD Terminal?

United Terminal at IAD provides various shop & dining options at Concourse C & D of Washington Dulles International Airport.

Shop and dine at Concourse C

The options for shop & dine at Concourse C at Dulles Airport are given below. These options are located post-security at Concourse C.



Shopping Stores


Shop and dine at Concourse D

The options for shop & dine at Concourse D at Dulles Airport are given below. These options are located post-security at Concourse D.


  • DUNKIN’ (GATE D23)

Shopping Stores


What is the United Baggage Allowance at the IAD Terminal?

All United Airlines flyers are entitled to 1 standard carry-on baggage and 1 personal item free of charge. For Basic Economy travelers, they are required to check their carry-on bag and pay the applicable checked baggage fee. Below is the overview of the size restrictions for the carry-on baggage – 

Carry-on Bag17 x 10 x 9 inches (43 x 25 x 22 cm)
Personal Item22 x 14 x 9 inches (56 x 35 x 22 cm)

Checked baggage – All checked baggage must adhere to the weight limit of 50 pounds (23 kg). This is applicable for all Economy and Premium Economy fares. For all premium cabin fares, the weight limit is 70 pounds (32 kg). The size of the checked baggage (applies to all fare classes and travel routes) must not exceed 62 inches or 157 centimeters (length + width + height).

Instead of providing you with a checked baggage fee at a glance, you can calculate the fee and allowance with the help of the United Airlines Baggage tool.

What are the parking options available at the United Terminal Dulles?

The IAD International Airport offers 5 parking options – Valet, Terminal Parking, Parking Garage 1, Parking Garage 2, and Economy Lot. All of these options are easily accessible from the IAD United Airlines terminal. The garage has easy access to the United terminal at IAD.

Valet Parking

Effective May 11, 2023, the valet costs 39 USD for 24 hours and then subsequently 10 USD per hour. You can drop the vehicles at the Departures Level Curb in Departures Zone 3.

  • It remains open between 4:00 AM and 10:00 PM.  The valet service is also available in the IAD United Terminal Lot which remains open 24*7 a week. 
  • Upon arrival, if you need to pick up your vehicle simply text your e-ticket number at 703-214-4455. You can receive your vehicle at the Valet Service Center.
  • You can call 703-572-4544 for all queries and concerns regarding Valet parking at United Terminal IAD.

Terminal Parking

Terminal parking is available right across the United Terminal Dulles and is one of the closest self-parking options. The parking fee is 7 USD per hour and 32 USD per day. You can also click on this link to request a reservation.

Parking Garage 1 & 2

The hourly rate is 6 USD and 21 USD per day for 24 hours. You can access Garage 2 if you’re taking a flight from the IAD United International Terminal. Parking Garage 1 connects to the terminal via the underground pedestrian. Parking Garage 2 connects to the terminal via a covered pedestrian walkway.

Economy Lot

You can park the car here at 14 USD for 24 hours. You can access the United terminal at IAD from here using the shuttle service called “ECONOMY” which runs 24*7 from Curb 2F.

What amenities and services does United Airlines IAD Terminal offer?

Whether you’re interested in shopping, relaxation, or keeping the kids entertained, here’s what United Airlines IAD terminal has to offer – 

Service AvailableLocation
Duty-Free StoresConcourse C (Gate C4 and C14) and Concourse D (Gate D3 & D16)
Plane spottingYou can enjoy the gaze of the runway, and track the plane’s takeoff and landing at Concourses C and D.
Capitol City Ink Book StoresConcourses A, C, and D
Nursing RoomsPost-Security in Concourses A, B, C, and D

All in all, the IAD United terminal is well-equipped and offers state-of-the-art facilities for travelers. Passengers can enjoy navigation to the airport with ease, and take advantage of all necessary amenities. With new international flights by United Airlines added every year from IAD, it is emerging to be one of the most traveler-friendly terminals in the United States.

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Frequently Asked Questions

What terminal does United use at Dulles for international flights?

United operates its flights from Concourses C, and D and some flights from Concourse Z at Dulles International Airport.

What gates does United use at Dulles Airport?

United Airlines has 22 gates at Concourse C and 24 gates at Concourse D for all its mainline flights and regional flights from IAD Airport.

Which terminal is United at Dulles?

United Airlines is located at the Main Terminal of Washington Dulles International Airport, and use Concourses C and D, for their flights.

What terminal is United at IAD?

United Airlines manages its departure and arrival operations from Concourse C and D at Washinton Dulles Airport.

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