Can I come and purchase tickets from The O2 box office? The O2 06 March 2015 14:23 Updated Follow Yes you can. The O2 box office is open daily from midday until 19:00. Related articles How do I buy a ticket for an event at The O2? What happens if I forget to print my e-tickets? How do I get the best seats? Where is The O2 box office? Ariana Grande Comments 0 comments Article is closed for comments.