Ferry companies must be feeling the effects of Brexit. Seems like there has been a near permanent sale on the Irish Sea, with the discounts only increasing as we head towards the peak summer season.
But Irish Ferries seem to have got one over Stena.
On Tuesday 9 May at midnight IF switch off their 25% off all sailings to Britain as do Stena. On Friday 12 May (presumably at the end of the working day) IF switch it back on again. Stena have not as yet reinstated the offer (as at 9.30pm, 12/5), and if it matches their slowness of about 3 weeks ago when a very similar event occurred, it will be Monday before they do - leaving a whole weekend where IF are 25% cheaper.
Repeat this a few times through the year and you can see it would seriously add to the bottom line and market share.