Arrive early if you want a good spot on the floor. General admission gets you there, but it’s first-come, first-served. If you’re sitting in the upper tiers (the nosebleeds), remember that the roof is a lot steeper than it looks on TV. Bring your glasses, because the stage feels a mile away.
Check your ticket for the "Capacity Code." If it says “standing,” expect the 20,000 number. If it says “seated,” you’ll be in a quieter crowd. Always check the venue’s official website for the specific show, as they sometimes release a limited number of “restricted view” seats that drop the count by a few hundred.
Oxygen Chart For Tanks – Gauge Charts – UTVRT
The North Greenwich Exodus
One of the biggest practical nightmares—and a true test of capacity—is the exit. When 20,000 people leave at once, the Jubilee Line can handle about 25,000 people per hour. That means you must be patient or plan an alternative. A little tip: walk to Canning Town station (a 15-minute stroll across the river) if you want a shot at a seat on the train.
Alternatively, book a table at one of the restaurants inside the O2 in advance. You can wait for the main rush to die down over a decent pizza. The venue cleverly designed the concourses to be wide—about 50 feet across—so you won’t feel like a sardine, but it still takes a good 20 minutes to get from your seat to the tube platform.
