OpenDoor Inc. began a direct collaboration with the airline ticket reservation website provided by Fuji Dream Airlines Co., Ltd. for domestic airline ticket comparison services. Travelko's domestic airline ticket comparison service enables search for all airline tickets listed on travel booking sites in a single search, including travel agencies. Fuji Dream Airlines, an airline company with which Travelko directly collaborates, is a full-service carrier with outstanding equipment and in-flight services and is supported by the fact that it provides services between regions not served by major airlines.

Through direct collaboration, not only airline ticket prices handled by travel agencies and travel booking sites but also special fares, such as youth discounts and senior discounts sold on the Fuji Dream Airlines official website, can be found and compared. In addition, it is now possible to make a reservation just before departure, making it easier to find a better deal. With direct collaboration with Fuji Dream Airlines, the Travelko domestic ticket comparison service has become even more convenient.