I'm trying to book Luton Airport to London and London to Stanstead Airport in advance. I'm being quoted for two anytime single fares of £16.50 each way. Am I right in thinking this is the standard fare that you pay when you walk into the station? If so I assume there's no benefit to booking online (other than maybe saving queue time - which is not much since I still have to collect tickets on arrival)? Or are anytime fares bought online discounted compared to the on the day at the station price?