It may be a big day here in Ireland but a lot would say it's a bigger day over in London and for one reason only - the rugby.
Aer Lingus had a nice surprise for passengers who were travelling to London yesterday.
Those flying to Twickenham for today's Grand Slam decider against England were all given a jersey before taking off.
"In the unlikely event that you forgot to pack your kit, we ask that you stay calm and take a moment to locate the Ireland jersey located in the seat pocket in front of you."
The Irish rugby team are just a win away from completing a first Grand Slam since 2009.