Tell everyone
"i'll meet you in luton @ time/date --> see you there"
Direct train to London St Pancras potentially as cheap as £10 advance single, travelling the eve before (~2.5hrs). Stay the night at St Pancras YHA just across the road £25. Trains every hour through the night from St Pancras to Luton Airport £14 (~1hr) including the shuttle bus. Returning to Leeds, nationalexpress coach for £28 (~5hrs).Its complicated because the flight is at 8.15am. The cheapest super offpeak return is £75 and arrives at 00.42 at luton airport. I wouldnt be too happy about this personally
This.
Why are you doing all the leg work? Tell them to get themselves there.