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Cheap flights from St. Louis to Chennai from ₹ 48,940

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAA
16 Dec — 23 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from St. Louis to Chennai

Enter your travel dates to find the best prices.

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 16 November 2025.

Tue 18/1114:52STL - MAA
2 stops24h 08mQatar Airways
Mon 22/1204:05MAA - STL
2 stops30h 00mQatar Airways
Deal found 15/11₹ 116,675
Mon 24/1118:43STL - MAA
3 stops50h 32mLufthansa
Wed 24/1218:00MAA - STL
3 stops39h 13mLufthansa
Deal found 15/11₹ 125,097
Wed 19/1106:00STL - MAA
2 stops31h 05mMultiple Airlines
Tue 23/1202:00MAA - STL
2 stops42h 05mMultiple Airlines
Deal found 15/11₹ 126,782
Wed 19/1118:43STL - MAA
2 stops41h 52mLufthansa
Tue 23/1201:50MAA - STL
1 stop23h 35mLufthansa
Deal found 16/11₹ 127,491
Thu 4/1211:50STL - MAA
2 stops27h 10mQatar Airways
Tue 23/1204:05MAA - STL
2 stops43h 56mQatar Airways
Deal found 15/11₹ 129,796
Thu 4/1212:55STL - MAA
2 stops47h 40mLufthansa
Tue 23/1201:50MAA - STL
1 stop23h 35mLufthansa
Deal found 15/11₹ 130,860
Wed 19/1118:43STL - MAA
2 stops41h 52mLufthansa
Sat 29/1101:50MAA - STL
1 stop23h 35mLufthansa
Deal found 16/11₹ 131,392

Cheap flight deals from St. Louis to Chennai

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Chennai (MAA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 16 November 2025.

Round-trip from

₹ 94,687

One-way from

₹ 48,940

Popular in

July

Cheapest in

September

Average price

₹ 114,724
Qatar Airways
  • Qatar Airways
  • 31/1-19/2
  • 4 total stops
  • 56h 22m total
  • St. Louis to Chennai
Search Deals
Qatar Airways
  • Qatar Airways
  • 28/4
  • 2 total stops
  • 28h 24m total
  • St. Louis to Chennai
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (₹ 1,651,227 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (₹ 201,384 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from St. Louis to Chennai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 454,620 searches. Data last updated 16 November 2025.
Use the filters below to find and compare flights from St. Louis to Chennai that are best for you.

Fly from

St. Louis

Fly to

Chennai

Route

Depart

Return

Price

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sat 31/1

13:40-02:30

2 stops25h 20m

Chennai

Thu 19/2

03:25-22:57

2 stops31h 02m

₹ 94,687

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 12/4

11:14-03:00

2 stops29h 16m

Chennai

Wed 15/4

04:20-21:48

2 stops27h 58m

₹ 96,461

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 12/4

15:30-00:10

1 stop22h 10m

Chennai

Tue 14/4

01:55-13:30

1 stop22h 05m

₹ 113,749

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 28/4

12:06-03:00

2 stops28h 24m

₹ 48,940

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 2/12

07:00-22:55

3 stops52h 25m

₹ 58,781

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 3/12

19:43-08:45

3 stops49h 32m

₹ 68,178

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 2/12

18:42-00:05

2 stops41h 53m

₹ 70,129

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 3/12

15:50-00:05

1 stop20h 45m

₹ 70,129

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 2/12

06:00-02:30

2 stops33h 00m

₹ 80,945

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Mon 15/12

19:43-15:40

3 stops56h 27m

₹ 109,050

Flights are sorted by cheapest return flights first.

Deals found on 15/11

Showing 1-10 of 12 results
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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.
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

How far ahead should I book a flight from St. Louis to Chennai?

Use this chart to determine the optimal time to book a return flight from St. Louis to Chennai. Price data was last updated on 14 November 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Chennai, you should look to book at least 7 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, April is the cheapest month in which you can book a flight from St. Louis to Chennai (average of ₹ 91,407). Flying from St. Louis to Chennai in August is currently the most expensive (average of ₹ 133,254). 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?

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Chennai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    A quick flight from St. Louis to Chennai can take about 25h 20m. Qatar Airways provides one of the quickest options available for as low as ₹ 94,687. 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, April is the cheapest month in which you can book a flight from St. Louis to Chennai (average of ₹ 91,407). Flying from St. Louis to Chennai in August is currently the most expensive (average of ₹ 133,254). 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

Travelling to a place near Chennai?

Book flights to Chennai if you plan to visit one of these locations
Mahabalipuram
Vellore

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.
Kansas City to Chennai flights

Fly with Cheapflights

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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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