WestJet will be adding a daily flight from Fredericton to Toronto starting in March, less than a year after the carrier started serving the New Brunswick capital.

The new schedule was announced on Monday and will take effect March 5, with flights to Toronto offered three times daily.

The schedule will see a flight depart in the early morning and arrive back in Fredericton late in the evening.

The airport authority said schedule give greater flexibility for business travellers who want same-day return trips and more choices for people looking to connect for flights to the United States or to sun destinations.

"Fredericton is a key market for WestJet and we are confident that the enhanced schedule will be welcomes by businesses and leisure travellers alike," said Bob Cummings, WestJet's executive vice-president of commercial operations, in a news release by the Fredericton International Airport Authority.

WestJet began its service in Fredericton in April 2015 with two flights daily to Toronto.

Johanne Gallant, the airport authority's president and chief executive officer, said the added service underscores the need to expand the airport's terminal building, which Gallant says is operating at 75 per cent over its designed capacity.

Fredericton Mayor Brad Woodside welcomed the expansion of WestJet service in a statement released on Monday afternoon.

"I want to thank WestJet for their vote of confidence in our region, as well as local residents for the use of the Fredericton International Airport," said Woodside.

"This increased traffic continues to make the case for the airport's terminal expansion."