How long is the flight from St. Louis to Chennai?

A quick flight from St. Louis to Chennai can take about 33h. Qatar Airways provides one of the quickest options available for as low as ₹ 108,914. St. Louis and Chennai are separated by a distance of 14169 km.

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.

₹ 62,223+ 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 10 November 2026.

Sun 6/1209:59 -

2 stops28h 46m

Tue 15/1204:05 -

2 stops27h 23m

Deal found 9/11₹ 136,330

Mon 16/1112:58 -

2 stops26h 02m

Thu 24/1204:05 -

2 stops30h 00m

Deal found 10/11₹ 137,920

Sun 6/1209:59 -

2 stops28h 46m

Sat 12/1204:05 -

2 stops26h 14m

Deal found 9/11₹ 140,072

Sun 6/1209:59 -

2 stops28h 46m

Thu 17/1203:15 -

2 stops31h 05m

Deal found 9/11₹ 141,102

Sun 6/1209:59 -

2 stops28h 46m

Fri 18/1203:15 -

2 stops32h 14m

Deal found 9/11₹ 144,844

Tue 8/1209:59 -

2 stops34h 36m

Tue 12/109:55 -

2 stops43h 27m

Deal found 7/11₹ 146,529

Sat 14/1106:00 -

2 stops26h 20m

Sun 6/1209:55 -

2 stops45h 33m

Deal found 8/11₹ 146,903

Mon 7/1209:59 -

2 stops28h 46m

Mon 14/1204:05 -

2 stops29h 14m

Deal found 9/11₹ 153,827

Mon 7/1209:59 -

2 stops28h 46m

Fri 18/1203:15 -

2 stops32h 14m

Deal found 9/11₹ 157,570

Mon 7/1218:55 -

2 stops41h 40m

Tue 15/1201:45 -

1 stop23h 30m

Deal found 9/11₹ 157,663

Mon 7/1218:55 -

2 stops41h 40m

Sun 13/1201:45 -

2 stops32h 44m

Deal found 9/11₹ 158,599

Mon 16/1112:58 -

2 stops26h 02m

Fri 25/1204:05 -

2 stops27h 01m

Deal found 10/11₹ 158,880

Find flight deals from St. Louis to Chennai

Round-trip from	₹ 107,136
One-way from	₹ 62,223
Popular in	June
Cheapest in	March
Average price	₹ 121,733

Qatar Airways
19/1-3/2
4 total stops
51h 12m total
St. Louis to Chennai

Search Deals

Qatar Airways
11/1-31/12
2 total stops
27h 38m total
St. Louis to Chennai

Search Deals

Highest demand for flights based on searches. 5% potential increase in price (₹ 804,707 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (₹ 495,898 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 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

Wed 13/1

14:11-02:15

2 stops24h 34m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 80,001

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Mon 16/11

12:58-02:30

2 stops26h 02m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 81,405

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Fri 8/1

13:49-02:15

2 stops24h 56m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 83,744

Fastest return journey

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Wed 13/1

15:40-00:05

1 stop20h 55m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 88,984

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Tue 8/12

11:05-00:05

2 stops25h 30m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 112,189

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Sun 14/2

10:23-02:30

2 stops28h 37m

Chennai

Wed 17/2

03:15-19:36

2 stops27h 51m

₹ 113,312

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Fri 5/2

09:41-02:15

2 stops29h 04m

Chennai

Sat 20/2

04:05-19:32

2 stops26h 57m

₹ 114,715

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Sat 5/12

06:02-02:15

2 stops32h 43m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 114,902

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Fri 8/1

15:40-00:05

1 stop20h 55m

Chennai

Wed 31/12

00:00-12:30

Nonstop0h 00m

₹ 116,119

St. LouisChennai

STL Lambert-St Louis - MAA Chennai

STLMAA

Lambert-St Louis

Sat 6/2

08:47-02:15

2 stops29h 58m

Chennai

Sat 20/2

04:05-23:54

2 stops31h 19m

₹ 116,119

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 20 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 ₹ 91,136). Flying from St. Louis to Chennai in June is currently the most expensive (average of ₹ 195,559). 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.

How much does it cost for a return flight from St. Louis to Chennai?

Airfare is below average for this route at the moment.

St. Louis to Chennai flights typically cost between ₹ 115,838 and ₹ 158,131 in January.
The cheapest return price found within the last 5 days was ₹ 107,136 on Qatar Airways (19 Jan–3 Feb).

Related info for your journey

How long is the flight from St. Louis to Chennai?
A quick flight from St. Louis to Chennai can take about 33h. Qatar Airways provides one of the quickest options available for as low as ₹ 108,914. St. Louis and Chennai are separated by a distance of 14169 km.
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 ₹ 91,136). Flying from St. Louis to Chennai in June is currently the most expensive (average of ₹ 195,559). 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.

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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 ₹ 62,223

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/1. 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 10 November 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 10 November 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 10 November 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 10 November 2026.

Last-minute flights from St. Louis to ChennaiDiscover last-minute flight deals from St. Louis to Chennai. Data last updated 10 November 2026 and is based on user searches.

Discover last-minute flight deals from St. Louis to Chennai. Data last updated 10 November 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 10 November 2026.

Search for one-way flight options from St. Louis to Chennai. Find affordable one-way fares based on user searches. Data last updated 10 November 2026.

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Use the filters below to find and compare flights from St. Louis to Chennai that are best for you.

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?

How much does it cost for a return flight from St. Louis to Chennai?

Airfare is below average for this route at the moment.

St. Louis to Chennai flights typically cost between ₹ 115,838 and ₹ 158,131 in January.The cheapest return price found within the last 5 days was ₹ 107,136 on Qatar Airways (19 Jan–3 Feb).

Related info for your journey

How long is the flight from St. Louis to Chennai?

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?

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Alternative routes for St. Louis to Chennai

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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 10 November 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

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St. Louis and Chennai flights

Browse other St. Louis and Chennai flight options. Last updated on 10 November 2026.

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

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

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 10 November 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 10 November 2026.

Last-minute flights from St. Louis to Chennai
Discover last-minute flight deals from St. Louis to Chennai. Data last updated 10 November 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 10 November 2026.

St. Louis to Chennai flights typically cost between ₹ 115,838 and ₹ 158,131 in January.
The cheapest return price found within the last 5 days was ₹ 107,136 on Qatar Airways (19 Jan–3 Feb).