My son and I arrived at Heathrow in the morning hours for our very first time and everything was easy from the start. We had 2 large luggages plus 2 medium ones and 2 carry-ons, my son going to college. We took the underground Piccadilly line to alight just one stop before kingscross, which is Russel station. Less then an hour trip, we entered the empty train at Terminal 4 and smoothly alighted at the right station. We bought just 2 single tickets, that's costly, 12 pounds, next time I would buy a oyster card the way it is advised in here.

My son and I arrived at Heathrow in the morning hours for our very first time and everything was easy from the start. We had 2 large items of luggage plus 2 medium ones and 2 carry-ons, my son going to college.

We took the underground Piccadilly line to alight just one stop before King's Cross, which is Russell Square station. Less then an hour trip, we entered the empty train at Terminal 4 and smoothly alighted at the right station. We bought two single tickets. That's costly (£12 pounds) next time I would buy an Oyster card as advised here.