Yoshino Line

The line was not built by Kintetsu but by the Yoshino Light Railway (吉野軽便鉄道), a company formed under Japan's Light Railway Act to carry cherry-blossom sightseers up toward Yoshino-yama and to move timber felled in the surrounding mountains. Because freight wagons were meant to run through onto the national railway network, the promoters chose 1,067 mm gauge rather than a lighter narrow gauge. The first section, from Yoshinoguchi — where the line met the government railway's Wakayama Line — to a station then called Yoshino (the present Muda Station), opened on 25 October 1912. In May 1913 the company changed its name to the Yoshino Railway (吉野鉄道).

Through the 1920s the Yoshino Railway extended its reach northward toward the markets and trunk lines of the Nara basin. On 5 December 1923 it opened the section from its own (original) Kashiharajingū-mae Station to Yoshinoguchi and electrified the whole line at 1,500 V DC, connecting with the Unebi Line (now the Kintetsu Kashihara Line) of the Osaka Electric Tramway. On 1 November 1924 the railway pushed on to Unebi Station on the government Sakurai Line, chiefly to smooth the flow of timber toward the lumber market at Sakurai. The line up the Yoshino valley was completed on 25 March 1928, when the section from Muda to Yoshino opened; the earlier terminus, until then named Yoshino, was renamed Muda so that the new mountain station could take the name Yoshino.

The railway's independence ended at the close of the 1920s. The Osaka Electric Tramway (Daiki), the direct corporate ancestor of Kintetsu, had obtained a licence to build its own line from Kashiharajingū-mae down to Yoshino, paralleling the Yoshino Railway. Judging that buying the existing line was preferable to building a competitor — and with the Yoshino Railway equally wary of a parallel rival — the two sides agreed to a merger, and on 1 August 1929 the Osaka Electric Tramway absorbed the Yoshino Railway, designating the Unebi–Yoshino route as the Yoshino Line. Daiki was later renamed Kansai Kyūkō Tetsudō, and in 1944 it became the Kinki Nippon Railway, so the line passed into the Kintetsu network.

An awkward feature of the merger was that Daiki's own trunk lines were standard gauge, so direct running between them and the narrow-gauge Yoshino Line was impossible. The narrow-gauge Osaka Railway (the builder of what is now the Minami-Osaka Line), whose tracks matched the Yoshino Line's gauge, had begun through services with the Yoshino Railway just before the Daiki merger; through running started on 29 March 1929, the day the Osaka Railway reached Kumeji Station, the present Kashiharajingū-mae. The Osaka Railway itself soon came under Daiki control. Station rationalisations around Kashihara followed, including the 1939–1940 consolidation of stations for the expansion of Kashihara Shrine, and a short stub toward Unebi, later named the Obusa Line, lost its passenger service in 1945 and closed entirely in 1952.

In the postwar decades the Yoshino Line settled into its role as a scenic limited-express route to Yoshino while shedding its freight traffic. A limited express between Ōsaka-Abenobashi and Yoshino began on 18 March 1965, and automatic train stop (ATS) entered use in 1968. Freight services were abolished on 1 February 1984. On 15 March 1990 the 26000 series "Sakura Liner" entered service and the Yoshino limited expresses moved to a thirty-minute interval, with several smaller stations added as express stops over the following years. Centralised traffic control for the whole line was commissioned on 1 September 2001, concentrating signalling at Kashiharajingū-mae.

More recently the line has leaned further into tourism. On 10 September 2016 Kintetsu introduced the 16200 series sightseeing limited express "Blue Symphony" (青の交響曲, Ao no Shinfonī) on the Yoshino route, running between Osaka and Yoshino, while other modern limited-express types such as the 22000 and 22600 series also serve the line. Many of the smaller intermediate stations have since become unstaffed, and one-man operation was extended across the whole line in 2022. Kintetsu has at times floated the idea of a gauge-changing train to allow direct services from Kyoto over the standard-gauge Kashihara Line onto the narrow-gauge Yoshino Line, but as of the mid-2020s no such service has materialised, and the line remains a single-track narrow-gauge route prized above all for its spring cherry-blossom traffic.

• 19105 September: a railway licence is granted to the Yoshino Light Railway for the Yoshinoguchi–Kita-Muda section.
• 191225 October: the Yoshino Light Railway opens its first section, Yoshinoguchi to Yoshino (the present Muda Station).
• 191331 May: the company changes its name to the Yoshino Railway (吉野鉄道).
• 19235 December: the (old) Kashiharajingū-mae–Yoshinoguchi section opens; the whole line is electrified at 1,500 V DC and connects with the Osaka Electric Tramway's Unebi Line (now the Kashihara Line).
• 19241 November: the line is extended from the (old) Kashiharajingū-mae to Unebi Station on the government Sakurai Line.
• 192825 March: the Muda–Yoshino section opens, completing the line; the former terminus, until then named Yoshino, is renamed Muda.
• 192929 March: Kumeji Station (the present Kashiharajingū-mae) opens and through running with the Osaka Railway (now the Minami-Osaka Line) begins.
• 19291 August: the Osaka Electric Tramway (Daiki) merges the Yoshino Railway, designating the Unebi–Yoshino route as the Yoshino Line; Daiki later becomes Kansai Kyūkō Tetsudō and, in 1944, the Kinki Nippon Railway (Kintetsu).
• 19521 September: the Obusa Line — a short Unebi-area stub left over from the original route — is abolished, having lost its passenger service in 1945.
• 196518 March: a limited express service begins between Ōsaka-Abenobashi and Yoshino.
• 196826 September: automatic train stop (ATS) enters service on the line.
• 19841 February: freight services on the line are abolished.
• 199015 March: the 26000 series 'Sakura Liner' enters service and Yoshino limited expresses move to a thirty-minute interval.
• 20011 September: centralised traffic control (CTC) for the whole line is commissioned, concentrating signalling at Kashiharajingū-mae.
• 201610 September: the 16200 series sightseeing limited express 'Blue Symphony' (Ao no Shinfonī) begins running on the Yoshino route between Osaka and Yoshino.
• 202223 April: one-man operation is extended across the whole Yoshino Line.