Traveling to Ireland in September. Flying from Belfast to Edinburgh for a couple days and needing somewhere to store luggage. Didn’t want to check 25 in . suitcase on flight. Thanks
I haven't tried this yet, but there is a luggage storage service called Stasher which works in many cities worldwide, including Dublin. £5 / €5 / $5 per bag per day, https://stasher.com/
If you're returning to a Belfast hotel, they'll probably be willing to store your bag.