I am a solo female traveler and will be in Copenhagen for one night/day in early May. I have a flight leaving CPH for London Heathrow on Saturday, May 5th at 7:50am. Should I take the train to the airport (will probably stay at Ibsens hotel)? I would probably have to leave around 5:30am, so I'm just curious if it's safe for me to travel on the train to the airport alone at that hour... or if I'm better off taking a taxi. Any advice is appreciated, thanks!