Delta Airlines and Garuda Indonesia have signed a codeshare agreement for services between the US and Tokyo.
The new partnership will see Garuda's code added to Delta flights from Tokyo Haneda to Los Angeles International Airport and Seattle Tacoma.
Flights will be timed to allow passengers from Jakarta to connect with the two US cities.
Pending government approval, tickets will be available for purchase from next month.
As members of Skyteam, passengers from both carriers will be able to enjoy reciprocal benefits such as mileage accrual and redemption, and lounge access.
Vinay Dube, Delta's senior vice president - Asia Pacific, said: "The new partnership with Garuda will provide significant new travel options for customers of both carriers and will enhance travel and trade between the two countries."
The codeshare flights between Tokyo and the US will be operated by Delta's B767-300ER aircraft, which offers 35 seats in business elite, 32 in economy comfort and 153 in economy.
To match the available capacity on Delta's 767-300ER, Garuda Indonesia will operate its A330-200 for the Jakarta to Tokyo Haneda route. The aircraft will feature a similar 36 seats in business class and 186 in economy.
Garuda's business seats are able to convert into full flat beds, and the airline's economy cabin has an average seat pitch of 33-34 inches. Personal inflight entertainment is available in every seat.