In terms of precipitation, rainfall in Chennai ranges from 10.0 - 330.0 inches per month. November is typically the wettest month, when rainfall can reach 330.0 mm. February is typically the driest time to visit Chennai when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Chennai, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 33.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

What is the cheapest time of day to fly from STL to MAA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Chennai as you normally would.

Can I find deals for flights from St. Louis to Chennai that include hotel bookings?

Yes. In addition to deals on St. Louis to Chennai flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from St. Louis to Chennai?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Chennai.

Can I find deals for business class flights from St. Louis to Chennai?

Yes. Cheapflights offers flight deals from St. Louis to Chennai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

₹ 62,422+ Cheap Flights from St. Louis to Chennai

Cheap flight deals from St. Louis to Chennai

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from St. Louis to Chennai
Explore the most affordable flight options available from St. Louis to Chennai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 October 2026.

Sat 31/1010:00 -

2 stops42h 35m

Sun 15/1109:55 -

2 stops58h 51m

Deal found 6/10₹ 102,489

Wed 14/1007:16 -

2 stops44h 54m

Mon 26/1009:55 -

2 stops40h 32m

Deal found 7/10₹ 102,973

Wed 4/1109:50 -

2 stops41h 45m

Wed 18/1103:55 -

3 stops27h 39m

Deal found 8/10₹ 103,456

Tue 17/1107:26 -

2 stops24h 54m

Thu 10/1209:55 -

2 stops62h 18m

Deal found 5/10₹ 103,650

Tue 10/1110:37 -

2 stops33h 58m

Fri 4/1216:05 -

2 stops32h 45m

Deal found 5/10₹ 103,940

Thu 12/1118:20 -

2 stops38h 00m

Fri 4/1216:05 -

2 stops32h 45m

Deal found 5/10₹ 104,618

Wed 21/1007:29 -

2 stops26h 11m

Tue 27/1003:55 -

2 stops40h 04m

Deal found 8/10₹ 105,392

Tue 10/1106:30 -

2 stops25h 50m

Sat 5/1216:05 -

2 stops32h 38m

Deal found 5/10₹ 106,069

Thu 12/1118:20 -

2 stops38h 00m

Sat 5/1216:05 -

2 stops32h 38m

Deal found 5/10₹ 106,747

Mon 12/1007:28 -

2 stops26h 52m

Sun 25/1009:55 -

2 stops58h 04m

Deal found 6/10₹ 107,908

Mon 12/1007:28 -

2 stops26h 52m

Sun 25/1003:55 -

2 stops49h 18m

Deal found 7/10₹ 108,779

Wed 4/1109:50 -

2 stops41h 45m

Thu 19/1116:05 -

2 stops32h 09m

Deal found 9/10₹ 109,166

Find flight deals from St. Louis to Chennai

Round-trip from	₹ 100,843
One-way from	₹ 62,422
Popular in	June
Cheapest in	March
Average price	₹ 134,522

5/2-21/2
4 total stops
60h 05m total
St. Louis to Chennai

Search Deals

Qatar Airways
16/11-31/12
2 total stops
32h 43m total
St. Louis to Chennai

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (₹ 1,067,638 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (₹ 549,341 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Mon 16/11

06:02-02:15

2 stops32h 43m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 62,422

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Thu 19/11

13:28-00:35

3 stops47h 37m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 80,230

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Fri 5/2

08:13-02:35

2 stops30h 52m

Chennai

Sun 21/2

21:50-15:33

2 stops29h 13m

₹ 100,843

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Sat 6/2

06:18-08:05

2 stops38h 17m

Chennai

Sun 21/2

21:50-19:20

2 stops33h 00m

₹ 100,843

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Mon 5/4

07:35-02:50

2 stops32h 45m

Chennai

Thu 22/4

16:05-18:04

2 stops36h 29m

₹ 102,973

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Wed 21/10

07:29-20:10

2 stops26h 11m

Chennai

Tue 27/10

03:55-09:29

2 stops40h 04m

₹ 105,392

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Wed 4/11

09:50-15:05

2 stops41h 45m

Chennai

Wed 18/11

03:55-20:04

3 stops27h 39m

₹ 109,650

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Wed 4/11

05:00-02:15

2 stops33h 45m

Chennai

Tue 17/11

04:05-19:22

2 stops26h 47m

₹ 112,941

Fastest return journey

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Wed 16/12

07:27-00:35

2 stops29h 38m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 502,572

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Wed 16/12

09:59-07:05

3 stops33h 36m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 509,927

Flights are sorted by cheapest return flights first.

Deals found on 8/10

Showing 1-10 of 11 resultsSorted by cheapest first

Best time to book a flight from St. Louis to Chennai

Have a flexible travel schedule? Discover the best time to fly to Chennai from St. Louis with our price prediction graph.

STL-MAA

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Chennai

What is the cheapest month to book a flight from St. Louis to Chennai?

Currently, March is the cheapest month in which you can book a flight from St. Louis to Chennai (average of ₹ 94,262). Flying from St. Louis to Chennai in June is currently the most expensive (average of ₹ 202,268). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Can I find deals for flights from St. Louis to Chennai that include hotel bookings?
Yes. In addition to deals on St. Louis to Chennai flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from St. Louis to Chennai?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Chennai.
Can I find deals for business class flights from St. Louis to Chennai?
Yes. Cheapflights offers flight deals from St. Louis to Chennai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Chennai?
Currently, March is the cheapest month in which you can book a flight from St. Louis to Chennai (average of ₹ 94,262). Flying from St. Louis to Chennai in June is currently the most expensive (average of ₹ 202,268). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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How does Cheapflights help users find flights from St. Louis to Chennai?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Chennai from St. Louis today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Chennai?

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to Chennai for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from St. Louis to Chennai with no change fees?

Certainly. Search results for flights to Chennai from St. Louis shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from St. Louis to Chennai become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Chennai from St. Louis today and book when prices fit your budget.

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Cheap flights from St. Louis to Chennai from ₹ 62,422

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. Louis to Chennai

Cheapest flights from St. Louis to ChennaiExplore the most affordable flight options available from St. Louis to Chennai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 October 2026.

Explore the most affordable flight options available from St. Louis to Chennai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 October 2026.

Best flights from St. Louis to ChennaiDiscover carefully curated flight deals from St. Louis to Chennai that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 October 2026.

Discover carefully curated flight deals from St. Louis to Chennai that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 October 2026.

Last-minute flights from St. Louis to ChennaiDiscover last-minute flight deals from St. Louis to Chennai. Data last updated 9 October 2026 and is based on user searches.

Discover last-minute flight deals from St. Louis to Chennai. Data last updated 9 October 2026 and is based on user searches.

One-way flights from St. Louis to ChennaiSearch for one-way flight options from St. Louis to Chennai. Find affordable one-way fares based on user searches. Data last updated 9 October 2026.

Search for one-way flight options from St. Louis to Chennai. Find affordable one-way fares based on user searches. Data last updated 9 October 2026.

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Best time to book a flight from St. Louis to Chennai

Have a flexible travel schedule? Discover the best time to fly to Chennai from St. Louis with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from St. Louis to Chennai?

Related info for your journey

Can I find deals for flights from St. Louis to Chennai that include hotel bookings?

How can I find direct flights from St. Louis to Chennai?

Can I find deals for business class flights from St. Louis to Chennai?

What is the cheapest month to book a flight from St. Louis to Chennai?

Travelling to a place near Chennai?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Chennai

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Chennai

Explore flights to Chennai departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 9 October 2026.

Complete your trip

Complete your trip to Chennai by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Tamil Nadu

Book a non-stop flight to one of these other cities located in Tamil Nadu.

Search flights from St. Louis to Chennai by cabin class

Find flights from St. Louis to Chennai, based on your preferred cabin class, be it economy, premium economy, business, or first class.

St. Louis and Chennai flights

Browse other St. Louis and Chennai flight options. Last updated on 9 October 2026.

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Can Cheapflights find flights from St. Louis to Chennai with no change fees?

Can Cheapflights notify me if prices for flights from St. Louis to Chennai become cheaper?

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Cheapest flights from St. Louis to Chennai
Explore the most affordable flight options available from St. Louis to Chennai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 October 2026.

Best flights from St. Louis to Chennai
Discover carefully curated flight deals from St. Louis to Chennai that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 9 October 2026.

Last-minute flights from St. Louis to Chennai
Discover last-minute flight deals from St. Louis to Chennai. Data last updated 9 October 2026 and is based on user searches.

One-way flights from St. Louis to Chennai
Search for one-way flight options from St. Louis to Chennai. Find affordable one-way fares based on user searches. Data last updated 9 October 2026.