Capacity on eight routes from Newcastle is being raised by EasyJet as is deploys a larger aircraft from the airport.
An additional 13,000 seats will be made available with the introduction of an Airbus A320 later this year.
Extra capacity will be available on routes to Malta, Majorca, Paris, Bristol, Alicante, Malaga, Barcelona and Belfast.
The budget airline runs an average of 11 flights a day, flying 1,200 people to 13 year-round destinations from Newcastle. It carries more than 450,000 passengers a year from the airport on more than 3,600 flights.
Commercial manager Hugh Aitken said: “Due to increased customer demand we are replacing an Airbus A319 with an Airbus A320 to provide additional seats to our loyal flyers.”
“While other airlines flying out of Newcastle airport concentrate on summer-only schedules, easyJet is strengthening its offer and making year-round, affordable travel accessible to all.”