A Chennai to Tirunelveli bus leaves from Kilambakkam (KCBT) and takes about 9.5 to 12 hours overnight for roughly 615 km. SETC lists AC seaters at Rs 809 and an AC sleeper at Rs 1,245; Thoothukudi, about 604 km, costs Rs 782 by AC seater and Rs 1,200 by AC sleeper.
The numbers
Tirunelveli and Thoothukudi are two of the busiest overnight runs out of Chennai, and both start at the Kalaignar Centenary Bus Terminus in Kilambakkam. The transport minister’s 13 October 2026 list puts Tirunelveli, Thoothukudi and Sengottai among Kilambakkam’s services, DT Next reported, and tnstc.in names Kilambakkam to Tirunelveli and Kilambakkam to Tiruchendur among SETC’s popular routes.
Private operators add many more seats. On 31 October 2026, redBus listed 169 daily Chennai to Tirunelveli services from 72 operators and 103 to Thoothukudi from 52. Government buses remain the benchmark for price, and they book out first in festival weeks.
SETC buses from Chennai to Tirunelveli and Thoothukudi
SETC’s published AC seater list shows two evening AC departures to Tirunelveli, around 7.30 pm and 8 pm, and one to Thoothukudi around 7.30 pm. Its AC sleeper list shows a Tirunelveli sleeper around 9 pm and a Thoothukudi sleeper around 8 pm. Those lists still name CMBT as the Chennai end, a leftover from before the 2024 shift; the booking screen shows the current boarding point, which for these routes is Kilambakkam. Departure times change, so check them when you book.
Alongside these, ultra deluxe seaters run on the route at the state’s rate of 100 paise a km. At that rate, the basic fare for about 615 km works out to around Rs 615 before reservation and other charges (100 paise times the distance). SETC has depots at Tirunelveli (two) and Tuticorin, per its depot list, which is why return services start from both towns.
| Class | Tirunelveli fare | Thoothukudi fare | Departs (around) |
|---|---|---|---|
| SETC AC seater | Rs 809 | Rs 782 | 7.30 pm / 8 pm (Tirunelveli); 7.30 pm (Thoothukudi) |
| SETC AC sleeper | Rs 1,245 | Rs 1,200 | 9 pm (Tirunelveli); 8 pm (Thoothukudi) |
| SETC ultra deluxe | About Rs 615 basic at 100 paise/km | About Rs 604 basic at 100 paise/km | Through the evening; check portal |
| Private sleeper or seater | Rs 419 to Rs 5,000 listed | Rs 599 to Rs 5,000 listed | Morning to near midnight |
Source: SETC AC list, SETC AC sleeper list, TN STU fare table; private range redBus, 31 Oct 2026. Ultra deluxe figures are basic-fare arithmetic, not ticket prices.
Journey time and the road south
The buses leave on GST Road through Chengalpattu, Tindivanam and Villupuram, run on to Trichy and Madurai, then head down to Virudhunagar, Kovilpatti and Tirunelveli. Thoothukudi buses leave the Tirunelveli road beyond Madurai. redBus showed an average of 10 hours 48 minutes to Tirunelveli, with operators ranging from 9 hours 32 minutes to 12 hours 17 minutes, and 10 hours 26 minutes on average to Thoothukudi.
Daily Chennai to Tirunelveli bus services listed by 72 operators on redBus on 31 October 2026, against 103 to Thoothukudi.
Arrival stands in Tirunelveli and Thoothukudi
Government buses end at each town’s main mofussil bus stand, from where local and regional buses run on to Tiruchendur, Nagercoil and the surrounding taluks. Private operators drop at several points: for Tirunelveli, redBus lists Junction Old Bus Stand, KTC Nagar, North Bypass and the omni bus stand; for Thoothukudi, the New Bus Stand and Old Bus Stand among others. Ask the conductor for the stop nearest your address before you sleep.
It’s often said that night buses get you to Tirunelveli by dawn every time.
The record shows The operator range runs past 12 hours, and the SETC rules say no refund or claim is allowed for a departure delay of up to four hours. Plan a morning meeting with slack.
Booking tips and festival rush
Report to the conductor 15 minutes before departure and board only at the point on your ticket; the rules say a missed seat can be given to an unreserved passenger. Weekday travel is cheaper in sleepers because of SETC’s flexi rates. For Deepavali and Pongal, extra government buses run from Kilambakkam, but reserved seats on the far-south routes go first.
What this means for you
- Go to Kilambakkam, not Koyambedu, for government buses to Tirunelveli and Thoothukudi.
- Book Monday to Thursday to pay SETC’s lower weekday sleeper rate.
- Budget 10 to 12 hours; do not plan a meeting at 7 am.
- Check the drop point: private buses stop at several places in each town.
Quick answers
How much is the bus fare from Chennai to Tirunelveli?
SETC lists Rs 809 for an AC seater and Rs 1,245 for an AC sleeper. Private fares listed on redBus ranged from Rs 419 to Rs 5,000.
How long does the bus take from Chennai to Tirunelveli?
About 9.5 to 12 hours. redBus showed an average of 10 hours 48 minutes on 31 October 2026.
Where do Tirunelveli buses leave from in Chennai?
Government buses leave from Kilambakkam (KCBT). Private operators also list pick-up points across the city.
What is the SETC fare from Chennai to Thoothukudi?
Rs 782 by AC seater and Rs 1,200 by AC sleeper, per SETC’s published lists.
Is there a direct bus from Chennai to Tiruchendur?
Yes. SETC lists Kilambakkam to Tiruchendur among its popular routes; it runs via the Thoothukudi side.
What to watch
Deepavali, 8 November
Extra government services are planned from Kilambakkam to the south for the festival; book return trips early as the post-festival rush back to Chennai is heavy.
Pending: updated SETC service lists
SETC’s published PDFs still name CMBT as the Chennai origin. Watch for revised lists on tnstc.in showing Kilambakkam departures and any new multi-axle services.
Checked against official sources on 31 October 2026. Timings and fares change; confirm on the operator’s booking site before you travel.
Sources
- TNSTC/SETC online reservation home page and popular routes (tnstc.in)
- Air Condition Buses Services list (SETC, tnstc.in)
- AC Sleeper Buses Services list (SETC, tnstc.in)
- Tamil Nadu STUs fare structure and SETC flexi fares (tnstc.in)
- History of SETC, depot list (SETC, tnstc.in)
- Rules and Regulations for passengers (TNSTC/SETC, tnstc.in)
- Chennai to Tirunelveli bus listings (redBus, viewed 31 October 2026)
- Chennai to Thoothukudi bus listings (redBus, viewed 31 October 2026)
- Tamil Nadu announces temporary bus terminals, special services for Ayudha Pooja, Deepavali rush (DT Next, 13 October 2026)
