SETC’s long-distance buses from Chennai to Kanyakumari and Nagercoil leave from Kilambakkam (KCBT) in the evening and arrive the next morning after about 12 hours on the road. An AC sleeper berth costs about Rs 1,255 to Rs 1,394 at the state’s per-km rates for the 697 km trip.
The numbers
The Chennai to Kanyakumari bus is one of the longest regular runs in the state network, and almost everyone takes it overnight. SETC, the state’s long-distance corporation, has a fleet of 1,080 buses on 195 routes, according to the Transport Policy Note 2025-26, and runs Nagercoil and Kanyakumari services from Kilambakkam. Its booking site tnstc.in lists “Chennai Kilambakkam KCBT to Nagercoil” among its most popular routes.
For most travellers the real choice is Nagercoil, the district headquarters with far more departures, or a direct bus to the cape itself. Both are covered below, with classes, fares, journey times and arrival points as checked on 31 October 2026.
Where to board the Chennai to Kanyakumari bus
All SETC buses for the far south start at Kilambakkam on GST Road and pick up along that road on the way out. On festival weekends the specials also go from there; for the Mahalaya Amavasai weekend this October, the Kilambakkam list included both Nagercoil and Kanniyakumari, DT Next reported. Private sleeper coaches board across the city; the redBus Nagercoil list included Adyar, Anna Nagar, Ashok Pillar and Chengalpattu.
To reach Kilambakkam by MTC, route 21G runs Broadway to Tambaram via Guindy and the airport, and 170A goes from Madhavaram through Koyambedu, Tambaram and Perungalathur to Vandalur, close to the terminus. Gaps on our route pages are averages from MTC data and may be dated; check live timings before you go, and leave extra time on Friday evenings.
SETC classes and fares to Kanyakumari
On a route this long, the class you pick decides both the fare and how rested you arrive. SETC’s fleet types include AC and non-AC sleepers, and it has added new Volvo multi-axle AC semi-sleepers, with Nagercoil among the first cities on its notice. The state’s per-km rates, in force since 29 January 2018 and listed in the policy note, give these base fares. Tolls and reservation charges come on top.
| Class | Rate per km | Kanyakumari, 697 km (approx.) | Nagercoil, 694 km (approx.) |
|---|---|---|---|
| Ultra deluxe | 100 paise | Rs 697 | Rs 694 |
| AC seater | 110 to 130 paise | Rs 767 to Rs 906 | Rs 763 to Rs 902 |
| Non-AC sleeper | 135 to 155 paise | Rs 941 to Rs 1,080 | Rs 937 to Rs 1,076 |
| AC sleeper | 180 to 200 paise | Rs 1,255 to Rs 1,394 | Rs 1,249 to Rs 1,388 |
Source: Tamil Nadu Transport Department, Policy Note 2025-26, mofussil fare table (rates in force since 29 January 2018); lower figure is the lean rate, higher the peak rate. Base fares are rate per km multiplied by the distances listed on redBus; tickets add tolls and reservation charges.
Per km, the peak AC sleeper rate in the state fare table, double the ultra deluxe rate of Rs 1 a km (Policy Note 2025-26).
Book on tnstc.in, the TNSTC app, or on WhatsApp at 9444018898, as the booking site advertises. Women travelling alone can use the “Single Lady” option in the search form. The policy note says booking opens 90 days ahead, and the toll-free 149 helpline covers all state transport undertakings.
Private sleepers and journey times
Private operators are numerous to Nagercoil and fewer to the cape. On 31 October 2026, redBus listed 108 daily buses from 49 operators to Nagercoil, with fares from about Rs 449 and operator times of 11 hours 47 minutes to 13 hours 35 minutes. Its Kanyakumari page showed only a handful of direct evening departures, with fares from about Rs 949 to Rs 2,644 and times from 11 hours 16 minutes to just over 15 hours.
It’s often said a direct Kanyakumari bus is always the quicker option.
The record shows Nagercoil is the last big town before the cape and has far more departures, 108 a day on redBus against a handful direct. Many travellers ride to Nagercoil and finish by town bus.
The road south and arrival points
Buses run down GST Road to Tindivanam and Villupuram, then on NH 38, which a Lok Sabha answer describes as running from Vellore to Thoothukudi, through Ulundurpet, Perambalur, Tiruchi and Madurai. Beyond Madurai they head through Virudhunagar and Tirunelveli to Nagercoil. Private coaches set down at several points on the way in, including Valliyur bypass, Vadasery omni bus stand and Parvathipuram, and at Kavalkinaru near the district border. TNSTC’s Tirunelveli corporation runs the local buses on to Kanyakumari, according to the policy note, which also notes SETC plans to expand at Nagercoil.
What this means for you
- Board SETC buses at Kilambakkam in the evening; expect to arrive around 12 hours later.
- An AC sleeper berth costs about Rs 1,255 to Rs 1,394 at state rates; an ultra deluxe seat about Rs 697.
- If a direct Kanyakumari bus is full, book to Nagercoil and take a local bus for the last stretch.
- Book early for holiday weekends; Nagercoil and Kanniyakumari are on every Kilambakkam special list.
Quick answers
Where do Chennai to Kanyakumari buses leave from?
SETC buses leave from Kilambakkam (KCBT) on GST Road. Private sleepers board at several city points, including Adyar, Anna Nagar and Chengalpattu.
How much is the bus ticket from Chennai to Kanyakumari?
At the state’s per-km rates, about Rs 697 by ultra deluxe and Rs 1,255 to Rs 1,394 by AC sleeper, plus tolls. Private fares on redBus ran from about Rs 949 to Rs 2,644 on 31 October 2026.
How many hours is Chennai to Kanyakumari by bus?
Operators list from about 11 hours 16 minutes to just over 15 hours; most take 12 to 13 hours.
Is there a sleeper bus from Chennai to Nagercoil?
Yes. SETC runs AC and non-AC sleepers and new Volvo semi-sleepers on the route, and many private operators run AC sleepers.
Which is closer to Kanyakumari, Nagercoil or Tirunelveli?
Nagercoil, the district headquarters, is the last big stop before the cape and the usual changeover for local buses.
What to watch
Pending
SETC’s planned expansion at Nagercoil, mentioned in the 2025-26 policy note; watch for new departures on tnstc.in.
Holiday season
Year-end and Pongal specials from Kilambakkam to Nagercoil and Kanniyakumari, announced a few days before each rush.
Checked against official sources on 31 October 2026. Timings and fares change; confirm on the operator’s booking site before you travel.
Sources
- TNSTC and SETC online reservation, popular routes and SETC Volvo semi-sleeper notice (tnstc.in)
- Transport Department Policy Note 2025-26, Government of Tamil Nadu
- Lok Sabha answer on NH-38, Vellore to Thoothukudi (Parliament of India digital library)
- Route 21G Broadway to Tambaram, MTC route data via Spirit of Chennai route page
- Route 170A Madhavaram B.S. to Vandalur Zoo, MTC route data via Spirit of Chennai route page
- Special buses for Mahalaya Amavasai weekend, Tirumala Brahmotsavam (DT Next, October 2026)
- Chennai to Nagercoil bus listings (redBus), viewed 31 October 2026
- Chennai to Kanyakumari bus listings (redBus), viewed 31 October 2026
