United Airlines details major international routes from Denver hub

The Edmonton International Airport (YEG) route sees up to three daily flights as well. Using Airbus A319 and A320 aircraft configured for three classes of service, United provides an average of 153 seats per flight and more than 19,000 round-trip seats in December.

Two daily flights are scheduled between Denver and Calgary International Airport (YYC), utilizing Boeing 737-800 and MAX 8 planes with an average capacity of 165 seats per departure. This results in over 20,000 round-trip seats being offered during the month.

For Los Cabos International Airport (SJD) in Mexico, United operates up to three daily flights using Boeing 737-800 aircraft capable of seating up to 160 passengers each. The total seat offering for this route exceeds 20,000 round-trips for December.

Similarly structured services are provided between Denver and Puerto Vallarta International Airport (PVR), also utilizing Boeing's narrowbody fleet with a capacity of around 160 passengers per flight. Over the course of December, these operations account for more than 16,000 available round-trip seats.

Air Canada collaborates with United through codeshare agreements on several routes including those serving YVR and YYC airports among others. Other airlines like Frontier and Southwest also operate competitive services on select routes such as those heading towards CUN or SJD destinations.

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