The DEL-MAA route has an average round-trip fare of Rs 9,555, with October as the best month for cheaper fares. However, July is the worst due to heavy monsoon rains and high volatility. Indian travelers should consider booking in advance to secure better rates.
Departure: 2026-09-03 · in 0 days · Prices tracked live by Tripfik
As of September 2026, the cheapest one-way flight from Delhi to Chennai is ₹7,926, which is 15% below the 12-month average of ₹9,377.
Cheapest Delhi to Chennai flights
Under ₹8,595 = top 25% best fares on this route
Round-trip fares — Delhi ↔ Chennai
Booking at the right time saves up to ₹1,927 (20%) vs average RT price.
Best time to visit Chennai from Delhi
| Month | Typical OW fare | Verdict | Weather | Crowd |
|---|---|---|---|---|
| Sep | ₹8,637 | Average | Warm/Monsoon | Low |
| Oct CHEAPEST | ₹8,471 | Average | Warm/Monsoon receding | Medium |
| Nov | ₹9,713 | Average | Warm/Clear | High |
| Dec | ₹10,474 | Average | Warm/Clear | High |
Chennai — what to know
From Delhi, Air India,Air India Express,Emirates,Etihad,Akasa Air,Gulf Air,IndiGo,Qatar Airways,Kuwait Airways,Malaysia Airlines,Oman Air,SpiceJet,SriLankan,THAI,Thai Lion Air,flydubai fly to Chennai in 3h 22m, with non-stop options available.
The average round-trip fare for DEL-MAA is Rs 9,555 over 12 months, with a minimum of Rs 7,682 in some periods. However, fares can spike up to Rs 212,290 due to high volatility and seasonal demand.
Delhi to Chennai — FAQ
What is the cheapest month to fly Delhi to Chennai?
How much does a Delhi to Chennai trip cost?
How far in advance should I book Delhi to Chennai flights?
Which airlines fly Delhi to Chennai and are there non-stops?
How many days is ideal for a Chennai trip from India?
What is the best time to visit Chennai?
What are the top things to do in Chennai?
Last updated 3 Sep 2026 · Tripfik tracks live fares from all major Indian airports