Koyambedu is Chennai's largest intercity bus terminus. Thousands of passengers arrive here every day from across Tamil Nadu, Andhra Pradesh, Karnataka and Kerala, and many of them need to get to Chennai International Airport (MAA) for a connecting flight. The airport is roughly 15 km south-east of Koyambedu, but depending on the route you take and the time of day, travel time can range from 25 minutes to well over an hour. Here is a detailed comparison of every way to make the trip.
Option 1: Chennai Metro Rail (Fastest and Most Reliable)
The Metro is, by far, the most predictable way to get from Koyambedu to the airport.
Step-by-Step
- Walk to Koyambedu Metro Station — it is adjacent to the CMBT bus terminus, roughly a 5-minute walk from the main arrival platforms.
- Take a Blue Line train towards Chennai Airport. Trains run every 5–8 minutes during peak hours and every 10–15 minutes off-peak.
- Alight at Chennai Airport Metro Station, which is connected to the domestic terminal (Terminal 1) by a covered walkway. International terminal (Terminal 4) is a short shuttle or walk away.
Time and Cost
- Travel time: approximately 30–35 minutes
- Fare: ₹50–60 (token); stored-value Metro card users get a small discount
- First train: approximately 5:00 AM
- Last train: approximately 11:00 PM
Verdict: Best overall option. No traffic, no ambiguity. Just make sure you are travelling within Metro operating hours.
Option 2: MTC Bus (Cheapest)
Several MTC routes connect Koyambedu to areas near the airport, though none drop you right at the terminal gate.
Relevant Routes
- Route 70: Koyambedu → Vadapalani → T. Nagar → Saidapet → Guindy → Alandur. From Alandur, the airport is 3 km away — you will need an auto or share-auto for the last stretch.
- Route 108: Passes through Koyambedu and Vadapalani. Useful if you want to transfer at Guindy to a route heading towards the airport.
- Route 21C / 21: Take any southbound bus on GST Road from Koyambedu towards Guindy/Meenambakkam. Meenambakkam is the closest MTC stop to the airport (about 1.5 km from the domestic terminal).
- Route N3 (Night): Runs Koyambedu to Tambaram via Guindy — useful for late-night arrivals if combined with an auto from Meenambakkam.
Step-by-Step (Budget Route)
- From Koyambedu bus stand, walk to the MTC bus stop on the main road (Jawaharlal Nehru Road).
- Board any bus heading towards Guindy/Tambaram on GST Road — 21C, 21, or similar.
- Alight at Meenambakkam bus stop (tell the conductor "airport").
- Take a share-auto or walk (20 minutes) to the airport domestic terminal.
Time and Cost
- Travel time: 50–90 minutes by bus + 10–15 minutes last mile
- Bus fare: ₹10–20
- Share-auto from Meenambakkam: ₹20–30
- Total cost: ₹30–50
Verdict: Extremely cheap, but slow and not ideal if you have heavy luggage or a tight flight schedule. Allow at least 2 hours.
Option 3: Taxi / App Cab (Most Convenient)
If you have luggage and want a door-to-door ride, a taxi or app-based cab (Ola, Uber) is the easiest option.
Step-by-Step
- Book a cab from the Ola or Uber app. Set pickup at CMBT Koyambedu and destination as Chennai Airport.
- Head to the designated app-cab pickup area at the bus terminus (usually near Gate 1 or the main exit).
- Ride directly to the airport terminal.
Time and Cost
- Travel time: 25–50 minutes depending on traffic
- Cost: ₹300–500 for a hatchback; ₹450–700 for a sedan. Surge pricing during peak hours can push it higher.
- Available: 24/7
Verdict: Most convenient, especially with luggage. But expensive compared to Metro and bus. Best for odd-hour travel (midnight to 5 AM) when public transport is not running.
Option 4: Auto-Rickshaw (Negotiated Fare)
Auto-rickshaws are available 24/7 outside Koyambedu. However, the 15 km trip to the airport is on the longer side for an auto.
Time and Cost
- Travel time: 30–60 minutes
- Cost (negotiated): ₹250–400. Very few auto drivers will agree to go by meter for this distance. Negotiate firmly before getting in.
Tip: If the auto driver quotes more than ₹400, it is usually better to book an app cab instead — you will get AC and a more comfortable ride for a similar price.
Option 5: Suburban Rail + Bus / Auto Combo
This is the most unconventional route, but some cost-conscious travellers use it:
- Take an MTC bus from Koyambedu to Mambalam railway station (about 20 minutes).
- Board a suburban EMU train from Mambalam towards Tambaram. Alight at Tirusulam station.
- Tirusulam station is right next to the airport — literally a 5-minute walk to the domestic terminal.
Time and Cost
- Travel time: 50–75 minutes total
- Bus fare: ₹8–12
- Train fare: ₹5–10
- Total cost: ₹15–25
Verdict: The cheapest possible option, and Tirusulam station's proximity to the airport is a genuine advantage. But it involves two transfers, and suburban trains can be crowded. Not recommended if you have heavy suitcases.
Which Option Should You Pick?
| Option | Time | Cost | Best For |
|---|---|---|---|
| Metro | 30–35 min | ₹50–60 | Most travellers (5 AM – 11 PM) |
| MTC Bus + Auto | 60–105 min | ₹30–50 | Budget travellers with time |
| Taxi / App Cab | 25–50 min | ₹300–700 | Luggage, odd hours, convenience |
| Auto-Rickshaw | 30–60 min | ₹250–400 | When cabs are unavailable |
| Suburban Rail + Bus | 50–75 min | ₹15–25 | Ultra-budget, light luggage |
For most travellers, the Metro is the sweet spot — fast, cheap, air-conditioned, and drops you right at the terminal. If you are arriving at Koyambedu late at night (after 11 PM), a taxi is your safest bet. And if you have hours to spare and want to spend as little as possible, the suburban rail combo via Tirusulam is an adventure worth trying.
Timings shown on TN Bus Stand are scheduled departures and may vary due to traffic, weather, or operational changes. Always verify at the bus stand inquiry counter before travelling.