Japanese traveling abroad are expected to hit a record high in 2013, partly due to more routes being offered by popular low-cost carriers, according to major travel agency JTB Corp.

The number going overseas is expected to reach 18.7 million, up 1.5 percent from the level projected for 2012, while Japanese set to travel within the country will number roughly 287 million, up 0.3 percent, JTB said.

A JTB official also attributed the anticipated rise in overseas travel, including business trips, to increased demand from baby boomers and a greater number of three-day weekends, making it easier for people to take vacations.

The travel agency said Southeast Asian countries and Hawaii are expected to top the list of destinations.

The number of foreign travelers to Japan is expected to mark a record high of 8.9 million, up 7.9 percent, the travel agency said.