Hinckley to Heathrow. Times for trains would have meant going previous night so expensive. And buses I've got to get 15 miles away and buses only run the previous night too. Flight is 09:15 so 07:15 meaning about 5am to leave home.
Sounds like a previous night job for me irrespective of your mode of travel - madness doing a journey of that length with zero margin for error before a non-refundable long-haul flight.

