Pet dogs and their humans departed together in the passenger cabin of a Boeing 737 from NRT recently on a special 3-day domestic tour, Japan Airlines said.
While pets usually travel in cargo compartments, the "wan wan jet" service allows owners and their dogs to travel together on a charter flight to Kagoshima Prefecture in southwestern Japan.
As part of the package tour, the humans and their dogs will also get to stay together in a hotel and go sightseeing in rented cars.
"It was painful for me to check in (my dog) as luggage at airport counters as it always barks," said Toshihiko Kai, a 41-year-old company employee who was travelling with a 4-year-old miniature dachshund.
"Today it feels safe as he is beside me," he added.
"Air travel with pets will lead to the opening of new markets for domestic flights," a JAL official said.
When the company launched the service in December, it was fully booked in around an hour with about 60 people and 30 dogs. In a similar service offered by rival ANA, 87 people travelled to Hokkaido Prefecture with 44 pets last May.