The procedure for obtaining an Air Transat Upgrade is simple. There are several ways for travelers to seek an upgrade: at the time of booking, online, or even at the airport on the day of departure. Passengers can also submit an offer to upgrade through Air Transat's bidding mechanism. The traveler enjoys all the perks of Club Class at a possible reduced price if they are accepted.... https://airlines-office.com/blog/air-transat-upgrade/