The airline said it carried 2.1 million passengers between October 2018 and March 2019 following an 8.8 per cent growth the previous year.
Last week easyJet announced a £275m loss for the six months to March 31, which the airline blamed on higher fuel costs and the Gatwick drone incident.
However, despite the challenges, easyJet’s Country Manager Neil Slaven spoke to the Belfast Telegraph saying: “I think it’s worth putting that in context. A lot of airlines taking capacity out of the market, some airlines are in financial difficulty. We are really reaffirming our commitment to the market.
“We are increasing the investment in Belfast. We’ve been there 22 years now. While other airlines come and go, we’re there for the long run. We’ve got 540 flights a week to the UK, including 34 flights a day between Belfast and London.”
Mr Slaven said easyJet now has more standby aircraft on the ground at Belfast, which are called into action if anything goes wrong.
EasyJet flies to 35 destinations from Northern Ireland.