From April 3, Cook’s in-house airline will operate 11 flights a week from the South Wales hub to a range of popular spring/summer hotspots.
Destinations set for a boost include Dalaman, Majorca, Tenerife, Lanzarote and Cyprus.
Cook has also added a new route to Enfidha in Tunisia.
The move means Thomas Cook Airlines now flights to 12 sun and beach destinations from Cardiff and has more than 120,000 seats on sale now for Easter and summer 2019.
Henry Sunley, Thomas Cook Airlines commercial director, said: “This is a brand new Easter programme from Cardiff with our season traditionally beginning on May 1.
“It’s great to be able to reward our customers who fly with us from Cardiff airport with even more choice.”
Spencer Birns, Cardiff airport commercial director, added: “It’s excellent to see one of our valued airline partners adding even more choice for our passengers for Spring and Summer next year.
“Cardiff Airport now welcomes more than 1.5 million passengers annually who are often in search of warmer weather and holiday packages that offer value for money, so Thomas Cook Airlines’ announcement of more seats and a new route to Tunisia for next year is great news for customers who choose to fly from their local airport.”
Flights lead in at £59.99 Majorca, £118.99 Cyprus, £141.99 Enfidha, £146.99 Tenerife and £201.99 Dalaman one way in economy.
A seven-night Thomas Cook holiday in Turkey leads in at £2,150 for a family of four, including child discounts staying at its five-star SENTIDO Perissia hotel in Side all-inclusive, departing Cardiff April 10, 2019.