1. From Tokyo
| Town | From → time | Return fare | Recommended day-use venue & fee |
|---|---|---|---|
| Hakone-Yumoto | Shinjuku → 85 min (Romancecar) | about ¥4,800 | Hakone Yuryo ¥1,700 / Tenzan ¥1,450 |
| Atami | Tokyo → 45 min (Kodama) | about ¥8,500 | Communal baths and hotel day use ¥1,000–2,000 |
| Kinugawa | Asakusa → 120 min (Tobu Ltd. Exp.) | about ¥6,000 | Kinugawa Onsen Hotel and others ¥1,000–1,500 |
| Ikaho | Shinjuku → 150 min (highway bus) | about ¥5,200 | Ishidan-no-yu ¥410 / Kogane-no-yu-kan |
| Mt Takao · Keio Takaosan Onsen | Shinjuku → 50 min | about ¥800 | Gokurakuyu ¥1,000–1,300 |
| Chichibu · Seibu-Chichibu | Ikebukuro → 80 min (Laview) | about ¥3,200 | Matsuri-no-yu ¥1,100–1,400 |
| Yugawara | Tokyo → 80 min | about ¥4,200 | Kogome-no-yu ¥1,100 |
| Kusatsu (stretching it) | Tokyo → 3 h | about ¥13,000 | Sainokawara open-air ¥800 / Ōtaki-no-yu ¥1,000 |
Natural hot springs inside Tokyo (Toshimaen 'Niwa-no-yu', Maenohara 'Saya-no-yudokoro', the black-water bathhouses of Kamata) are also options.
2. From Osaka
| Town | From → time | Return fare | Recommended day-use venue & fee |
|---|---|---|---|
| Arima | Umeda → 60 min (Hankyu bus) | about ¥2,800 | Kin-no-yu ¥800 / Gin-no-yu ¥700 / Taiko-no-yu from ¥2,750 |
| Kinosaki | Osaka → 160 min (Kounotori) | about ¥11,000 | Seven sotoyu ¥800–900, day pass ¥1,500 |
| Shirahama | Tennoji → 150 min (Kuroshio) | about ¥11,000 | Saki-no-yu ¥500 / Muro-no-yu |
| Inunakisan | Namba → 60 min | about ¥1,400 | Fudōguchikan and others ¥700–1,000 |
| Yunohana (Kameoka) | Kyoto → 40 min | about ¥1,600 | Ryokan day use ¥1,000–1,500 |
| Totsukawa | Osaka → 3.5 h (car is realistic) | — | Iori-no-yu, Taki-no-yu |
| Osaka city · Minoh | 30–40 min each | about ¥600–900 | Naniwa-no-yu / Minoh Onsen Spa Garden from ¥1,700 |
From Kyoto, Arashiyama (Kyoto Station → 30 min, Arashiyama Onsen Fufu-no-yu ¥1,000–1,400) is also an easy day out.
3. Half-day models
Tokyo – Hakone: Shinjuku 9:00 Romancecar → Hakone-Yumoto 10:30 → Hakone Yuryo (free 3-min shuttle) until 12:30 → soba on the Yumoto shopping street → 14:00 train, back by 16:00. About ¥9,000.
Osaka – Arima: Umeda 10:00 Hankyu bus → Arima 11:00 → Kin-no-yu → carbonated senbei → Nene Bridge → 14:00 bus → Umeda 15:00. About ¥4,500.
Tokyo – Atami: Tokyo 9:00 Kodama → Atami 9:45 → station arcade → hotel day bath (from 12:00) → dried-fish lunch → 15:30 Kodama → back 16:20. About ¥12,000.
4. Five rules for a successful day trip
- Ryokan day use is mostly 11:00–15:00 — plan a morning arrival
- Weekends bring more 'no day use' days. Go midweek or choose public baths (sotoyu, municipal)
- Bring your own towel (saves ¥200–400 rental)
- Reserve limited-express seats both ways in advance (return unreserved cars fill up)
- Leave luggage at your hotel. Station lockers cost ¥400–700
5. When staying over is the better deal
Kinosaki, Shirahama and Kusatsu cost over ¥10,000 in return fares alone. Add a weekday room with two meals (from ¥15,000) and it's still cheaper than two day trips — and you get the baths at night and dawn. Check weekday rates via Trip.com on each onsen-town page here before deciding.