Porter Airlines operates out of Billy Bishop Toronto City Airport (YTZ), not the main Toronto Pearson Airport (YYZ). Billy Bishop is a smaller, more convenient airport located right on the Toronto Islands, just a short ferry ride from downtown Toronto. So if you’re flying Porter, you’ll be at Billy Bishop Airport, known for its quick check-in and easy access.
    
 Where do I check in for TAP Air Portugal at Heathrow Airport? 
 
The TAP Air Portugal Heathrow Airport Terminal, Terminal 2, also referred to as The Queen's Terminal, is where you can check in for your flight. For a seamless travel experience, TAP Air Portugal offers self-service kiosks and dedicated check-in counters here. It is recommended that travelers arrive early, finish security checks promptly, and take advantage of Terminal 2's extensive amenities prior to departure. 
https://exploreairlinesoffice.....com/tap-air-portugal
The Vueling Airlines shuttle LGW terminal service ensures seamless connectivity for passengers transferring between terminals at London Gatwick Airport. Operating from the South Terminal, Vueling Airlines benefits from the airport's efficient shuttle system, which links the North and South Terminals. This automated people mover runs every few minutes, 24 hours a day, providing quick and convenient transfers for travelers. The Vueling Airlines shuttle LGW terminal experience is enhanced by clear signage and helpful staff, ensuring a stress-free journey. Passengers can enjoy a range of amenities at the South Terminal, including dining options, shopping outlets, and comfortable lounges, making their travel experience pleasant and efficient.