Despite a dramatic fall in the number of people gaining qualified teacher status through a course at a higher education institution, it is still the most popular route. (schoolsweek.co.uk)
You will really need to reserve tickets in advance, especially on popular routes. (aroundthisworld.com)
The main idea is to go against the flow and use miles to travel via less popular routes, preferably during the low season. (raytravelsfree.com)