I've been through Heathrow and Gatwick, International Arrivals, numerous times and walking to customs and immigration is at least 20 minutes from the gate after the ac is cleared (used to have to ride a bus). Then on to baggage claim is another 10 minutes. If you're in a taxi or on the train it's at least 40-45 minutes after the chocks have been set --- that's if you're lucky on a slow day.

I've flown both HA(God rest your soul) and TS in Hawaii many, many times since the 60s. Probably the most efficient operators in the business --- ever! On take off, 50ft off the ground, the FA says if you want a drink lower your tray tables NOW and 90 tray tables hit their stops--- bang, and everyone laughs! The flights are typically 20-35 minutes and, on landing, 50 ft off the ground, the last plastic glass is picked up! What a hoot those flights are/were!

Bruce