List of Airlines at (IAD) airport

Concourse A

Air China (Tel +1 800 882 8122)
Air France (Tel +1 800 237 2747)
Cathay Pacific (Tel +1 800 233 2742)
Copa Airlines (Tel +1 844 287 0304)
Emirates (Tel +1 800 777 3999)
Ethiopian Airlines (Tel +1 833 923 2689)
Etihad Airways (Tel +1 877 690 0767)
Icelandair (Tel +1 800 223 5500)
KLM (Tel +1 866 434 0320)
Korean Air (Tel +1 800 438 5000)
Porter Airlines (Tel +1 888 619 8622)
Saudia (Tel +1 800 472 8342)
United Airlines (Tel +1 800 864 8331)
Virgin Atlantic (Tel +1 800 862 8621)

Concourse B

Aer Lingus (Tel +1 800 474 7424)
Aeroméxico (Tel +1 800 237 6639)
Alaska Airlines (Tel +1 800 252 7522)
All Nippon Airways (Tel +1 800 235 9262)
American Airlines (Tel +1 800 433 7300)
Austrian Airways (Tel +1 800 843 0002)
Avianca (Tel +1 800 284 2622)
British Airways (Tel +1 800 247 9297)
Delta Air Lines (Tel +1 800 221 1212)
JetBlue (Tel +1 800 538 2583)
Lufthansa (Tel +1 800 645 3880)
Qatar Airways (Tel +1 877 777 2827)
Scandinavian Airlines (Tel +1 800 221 2350)
South African Airways (Tel +1 800 722 9675)
Southwest Airlines (Tel +1 800 435 9792)
Turkish Airlines (Tel +1 800 874 8875)
Volaris (Tel +1 855 865 2747)

Concourse C

United Airlines (Tel +1 800 864 8331)

Concourse D

United Airlines (Tel +1 800 864 8331)

Concourse H

Aeroflot (Tel +1 866 879 7647 / 202 499 5929)
Air India (Tel +1 800 223 7776)
Brussels Airlines (Tel +1 866 308 2230)
Royal Air Maroc (Tel +1 800 344 6726)

Concourse Z

Air Canada (Tel +1 888 247 2262)
Frontier Airlines (Tel +1 801 401 9000)

Many passengers do not know who to consult or make a claim to some doubts that arise before or after traveling, or any inconvenience that may occur. Listed below are topics that need to be consulted, coordinated or resolved directly with the airline.   Check in procedure   Documentation and visa required   Baggage weight limits, restricted and prohibited Items   Baggage and excess billing rates   Requirements for minors traveling alone or without parents   Special passengers needing prior coordination with the airline: people with disabilities, reduced mobility and pregnant women   Lost, delayed or damaged baggage reclaim   Possible flight's changes of date or cancellations   Confirmation of flight schedules (departures or arrivals)   Flight status report (for possible delays, cancellations, rescheduling)   In case your airline reschedules your flight, coordinate with the company for possible compensation, due to extra nights accomodation, food, flight connection lost, etc. Remember that it is always advisable to have a traveler's assistance insurance, in case the airline does not respond to any inconvenience that might happen (baggage lost or damaged, cancellation or flight delay, etc.)