Is it the same YUL and YMQ airport in Canada?

YMQ is a catch-all for airports in the Montreal metropolitan area (LON is used for London, TYO for Tokyo, NYC for New York, etc.).

  • YUL is the main international airport (Pierre Eliott Trudeau)
  • YMQ is Mirabel Airport (cargo only for the moment, as far as I know)
  • YHU Saint-Hubert, mainly for small planes using shorter routes from the province of Quebec

In a flight search engine, YMQ will almost certainly offer flights to YUL alone (assuming you come from outside Quebec).