
Japan Transocean Air (JTA) is an airline based in Naha, Okinawa Prefecture, Japan. It operates domestic services on behalf of Japan Airlines. Its main base is Naha Airport. From 1967 until 1993, the airline was known as Southwest Air Lines.
Mergers / predecessors: Southwest Air Lines
The airline was established on 20 June 1967 as Southwest Air Lines (南西航空, Nansei Kōkū), and started operations in July 1967. It changed its name in July 1993. It had 814 employees (in March 2023) and is owned by Japan Airlines (51.1%), Naha Airport Terminal (17%), Okinawa Prefecture (12.9%) and others (19.1%). It flew Convair 240s until new capital from JAL allowed it to upgrade to NAMC YS-11s, and eventually Boeing 737s. JTA occasionally lends aircraft to JAL in the event of equipment failure. JTA also provides maintenance services for JAL Group Boeing 737-400 aircraft. JTA owns 74.5% of Ryukyu Air Commuter. At one time the head office of Southwest Air Lines was at 306-1 Kagamizu in Naha.
Its main hubs
Airports that list it on their own website
These airports include this airline in the carrier list on their official website.
Other airports in its network
Route network according to OpenFlights (open route database). It may not reflect recent schedule changes.
Data from Wikidata (CC0) · summary from Wikipedia (CC BY-SA).
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This page was last updated on September 26, 2026
APA
Vuelopedia. (2026, September 26). Japan Transocean Air. Retrieved October 17, 2026, from https://vuelopedia.org/en/airline/japan-transocean-air
MLA
“Japan Transocean Air.” Vuelopedia, Fundación Poderia, 26 Sept. 2026, vuelopedia.org/en/airline/japan-transocean-air. Accessed 17 Oct. 2026.
Chicago
Vuelopedia. “Japan Transocean Air.” Fundación Poderia. Last modified September 26, 2026. https://vuelopedia.org/en/airline/japan-transocean-air.
Harvard
Vuelopedia (2026) Japan Transocean Air. Available at: https://vuelopedia.org/en/airline/japan-transocean-air (Accessed: 17 October 2026).
BibTeX
@misc{vuelopedia_en_airline_japan_transocean_air,
author = {{Vuelopedia}},
title = {{Japan Transocean Air}},
publisher = {Fundación Poderia},
year = {2026},
date = {2026-09-26},
url = {https://vuelopedia.org/en/airline/japan-transocean-air},
howpublished = {\url{https://vuelopedia.org/en/airline/japan-transocean-air}},
urldate = {2026-10-17},
note = {Accessed 2026-10-17}
}Wikipedia
{{cite web |url=https://vuelopedia.org/en/airline/japan-transocean-air |title=Japan Transocean Air |website=Vuelopedia |publisher=Fundación Poderia |date=2026-09-26 |access-date=2026-10-17 |language=en}}