List of Airlines at (IAD) airport

Main Terminal (Check-in and Departures)

Dulles International Airport (IAD) centralizes all check-in and baggage drop-off processes in the Main Terminal. Regardless of your airline or destination, you must go to this building to start your journey. The upper level houses the check-in counters, divided into four check-in zones.

Once you have completed check-in and passed through security screening, passengers proceed to the various departure areas (Concourses) using the automated AeroTrain system, Mobile Lounges, or pedestrian walkways, depending on the assigned gate.

Airlines and Destinations

Below is a list of airlines that operate regularly at Dulles, their main destinations, and direct links to their official channels for managing flights.

International and Regional Airlines

Aer Lingus
Nonstop flights to Dublin (DUB) with connections to the UK and Europe.
Official Website | Mobile App

Aeroméxico
Daily flights to Mexico City (MEX).
Official Website

Air Canada / Air Canada Express
Frequent connections to Toronto (YYZ), Montreal (YUL) and Vancouver (YVR).
Official Website

Air China
Flights to Beijing (PEK) (subject to government/seasonal scheduling).
Official Website

Air France
Daily flights to Paris (CDG).
Official Website

Air India
Nonstop flights to New Delhi (DEL).
Official Website

Alaska Airlines
Flights to the West Coast: Seattle (SEA), Los Angeles (LAX), San Francisco (SFO), San Diego (SAN) and Portland (PDX).
Official Website

All Nippon Airways (ANA)
Nonstop flights to Tokyo-Haneda (HND).
Official Website

American Airlines
Connections to its main hubs: Dallas/Fort Worth (DFW), Charlotte (CLT), Miami (MIA), Los Angeles (LAX) and Phoenix (PHX).
Official Website

Austrian Airlines
Nonstop flights to Vienna (VIE).
Official Website

Avianca
Flights to Bogotá (BOG), San Salvador (SAL) and Guatemala City (GUA).
Official Website

British Airways
Frequent flights to London-Heathrow (LHR).
Official Website

Brussels Airlines
Nonstop flights to Brussels (BRU).
Official Website

Copa Airlines
Nonstop flights to Panama City (PTY) with onward connections to South America.
Official Website

Delta Air Lines
Flights to Atlanta (ATL), Detroit (DTW), Minneapolis (MSP), Salt Lake City (SLC), Seattle (SEA) and New York (JFK).
Official Website

EgyptAir
Nonstop flights to Cairo (CAI).
Official Website

Emirates
Nonstop flights to Dubai (DXB).
Official Website

Ethiopian Airlines
Flights to Addis Ababa (ADD) (some via Lomé or Rome).
Official Website

Etihad Airways
Nonstop flights to Abu Dhabi (AUH).
Official Website

Iberia
Nonstop flights to Madrid (MAD).
Official Website

Icelandair
Nonstop flights to Reykjavik (KEF) with connections to Europe.
Official Website

ITA Airways
Nonstop flights to Rome (FCO).
Official Website

KLM Royal Dutch Airlines
Nonstop flights to Amsterdam (AMS).
Official Website

Korean Air
Nonstop flights to Seoul-Incheon (ICN).
Official Website

Lufthansa
Nonstop flights to Frankfurt (FRA) and Munich (MUC).
Official Website

Porter Airlines
Flights to Toronto-Billy Bishop (YTZ).
Official Website

Qatar Airways
Nonstop flights to Doha (DOH).
Official Website

Royal Air Maroc
Nonstop flights to Casablanca (CMN).
Official Website

Saudia
Flights to Jeddah (JED) and Riyadh (RUH).
Official Website

Scandinavian Airlines (SAS)
Nonstop flights to Copenhagen (CPH).
Official Website

Southern Airways Express
Regional flights to destinations such as DuBois (DUJ), Morgantown (MGW) and Lancaster (LNS).
Official Website

Southwest Airlines
Flights to Denver (DEN), Atlanta (ATL), Chicago (MDW), Orlando (MCO) and more.
Official Website

Sun Country Airlines
Flights to Minneapolis/St. Paul (MSP).
Official Website

Swiss International Air Lines
Nonstop flights to Zurich (ZRH).
Official Website

TAP Air Portugal
Nonstop flights to Lisbon (LIS).
Official Website

Turkish Airlines
Nonstop flights to Istanbul (IST).
Official Website

United Airlines (Main Hub)
Operates the largest network of destinations from Dulles, covering all of the U.S. and international flights to Europe, Asia, Latin America and the Caribbean.
Official Website | Mobile App

Virgin Atlantic
Nonstop flights to London-Heathrow (LHR).
Official Website

Volaris
Flights to San Salvador (SAL) and onward connections to Central America/Mexico.
Official Website

WestJet
Flights to Calgary (YYC) and Vancouver (YVR) (seasonal service).
Official Website

Concourse Layout (Gates)

After checking in at the Main Terminal, you must proceed to your departure gate. Always check the flight information displays, as gate assignments may change.

Z Gates (Main Terminal)
Located just beyond the security checkpoints in the same main building. Frequently used by Air Canada Express, Frontier and Southern Airways Express.

A and B Concourses
Accessible via the AeroTrain (A and B stations) or through the underground pedestrian walkway from the Main Terminal.

• Concourse A: Mainly hosts international airlines (such as Air France, KLM, Virgin Atlantic, Emirates) and some United Express regional flights.
• Concourse B: Used by most international airlines (such as Lufthansa, British Airways, Turkish Airlines, ANA) and U.S. carriers other than United (such as Delta, American, Southwest, Alaska).

C and D Concourses
These are the exclusive operations center for United Airlines.

• Concourse C: Accessible via the AeroTrain (C station).
• Concourse D: Accessible via the "Mobile Lounge" transport service from the Main Terminal or by walking from Concourse C. The AeroTrain does not serve Concourse D directly.