I'm flying into and out of Luton airport next month for a weekend. 2 adults, 2 kids.
Is the train easiest to get into the city?
If I prebook train tickets but our flight is delayed, what happens?! It's not cheap (roughly £60-£100 return (big difference in price on some trains) without a rail card, which I may get but it's not massively worth my while as I live in NI).
Is the train likely to be any/much more expensive on the day?
The last time we were in London my kids were able to use the tube for free. They are now 14 and 12. What is our easiest way to pay for them on the tube? We're only staying 2 nights so a prepaid railcard might not be worth it?
Thanks in advance!