List of Airlines at (YUL) airport

Aegean Airlines
Aer Lingus
Aeroméxico (Tel +1 800 237 6639)
Air Algérie (Tel +1 888 905 0148)
Air Canada (Tel +1 888 247 2262)
Air China (Tel +1 800 882 8122)
Air Creebec (Tel +1 800 567 6567)
Air France (Tel +1 800 667 2747)
Air India
Air Inuit (Tel +1 800 361 2965)
Air New Zealand
Air Saint-Pierre (Tel +1 877 277 7765)
Air Transat (Tel +1 877 872 6728)
Alitalia (Tel +1 800 667 2747)
All Nippon Airways
American Airlines (Tel +1 800 433 7300)
Asiana Airlines
Austrian Airlines
Avianca
Azores Airlines (Tel +1 800 387 0365)
British Airways (Tel +1 800 247 9297)
Brussels Airlines (Tel +1 866 308 2230)
Canadian North (Tel +1 800 267 1247)
Cathay Pacific
Condor
Copa Airlines (Tel +1 800 359 2672)
Corsair International (Tel +1 450 332 9090)
Croatia Airlines
Delta Air Lines (Tel +1 800 345 7458)
EgyptAir
Etihad Airways
Eva Air
Finnair
Iberia (Tel +1 800 247 9297)
Icelandair
Interjet (Tel +1 844 874 4053)
Jet Airways
KLM (Tel +1 800 225 2525)
Level (Tel +1 646 585 9797)
LOT Polish Airlines
Lufthansa (Tel +1 800 563 5954)
Miami Air International
Middle East Airlines
Norwegian Air Shuttle
Porter Airlines (Tel +1 888 619 8622)
Provincial Airlines (Tel +1 800 563 2800)
Qatar Airways (Tel +1 888 366 5666)
Royal Air Maroc (Tel +1 800 361 7508)
Royal Jordanian (Tel +1 514 631 2403)
Singapore Airlines
South African Airways
Sunwing Airlines (Tel +1 888 822 2623)
Swiss International Air Lines (Tel +1 877 359 7947)
TUI fly
TAP Air Portugal
Thai Airways
Tunisair
Turkish Airlines (Tel +1 800 874 8875)
United Airlines (Tel +1 800 241 6522)
WestJet (Tel +1 888 937 8538)

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.)