Cost and time trade-offs
Every train journey has a final transfer. Trains stop at Luton Airport Parkway, while the terminal is reached by the Luton DART. The automated shuttle runs 24 hours a day and takes under four minutes. Buy the rail destination as 'Luton Airport' and the through-ticket includes the DART. Buy only to 'Luton Airport Parkway' and the adult DART single bought at lutondart.com costs £4.90 separately; other payment methods may differ. That station-name difference matters more than a small headline saving.