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Cheap flights from St. Louis to Chennai from ₹ 48,095

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 21/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAA
7 Jan — 14 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 8 December 2025.

Mon 8/1208:38STL - MAA
2 stops30h 12mQatar Airways
Tue 23/1203:25MAA - STL
2 stops30h 40mQatar Airways
Deal found 7/12₹ 132,058
Mon 8/1213:00STL - MAA
2 stops23h 35mLufthansa
Tue 23/1201:50MAA - STL
1 stop23h 35mLufthansa
Deal found 7/12₹ 140,958
Mon 8/1212:55STL - MAA
2 stops23h 40mMultiple Airlines
Tue 23/1201:50MAA - STL
2 stops49h 09mMultiple Airlines
Deal found 7/12₹ 143,385
Thu 11/1206:00STL - MAA
2 stops32h 50mQatar Airways
Fri 26/1204:05MAA - STL
2 stops43h 57mQatar Airways
Deal found 7/12₹ 187,075
Thu 11/1210:56STL - MAA
2 stops27h 54mQatar Airways
Mon 5/103:25MAA - STL
2 stops32h 04mQatar Airways
Deal found 7/12₹ 222,584
Fri 12/1214:54STL - MAA
2 stops24h 06mQatar Airways
Sat 3/104:05MAA - STL
2 stops31h 16mQatar Airways
Deal found 6/12₹ 370,373
Thu 11/1216:05STL - MAA
2 stops44h 30mMultiple Airlines
Fri 26/1201:50MAA - STL
3 stops49h 09mMultiple Airlines
Deal found 7/12₹ 405,703
Fri 12/1215:50STL - MAA
1 stop20h 45mLufthansa
Sat 3/101:50MAA - STL
1 stop23h 35mLufthansa
Deal found 6/12₹ 461,438

Find 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 8 December 2025.

Round-trip from

₹ 90,076

One-way from

₹ 48,095

Popular in

July

Cheapest in

February

Average price

₹ 133,586
Lufthansa
  • Lufthansa
  • 21/1-27/1
  • 3 total stops
  • 48h 48m total
  • St. Louis to Chennai
Search Deals
21/1
  • 21/1
  • 2 total stops
  • 24h 06m total
  • St. Louis to Chennai
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (₹ 1,827,647 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (₹ 218,216 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 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 8 December 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

Wed 21/1

11:22-00:05

2 stops25h 13m

Chennai

Tue 27/1

01:50-13:55

1 stop23h 35m

₹ 90,076

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 21/1

09:33-02:20

2 stops29h 17m

Chennai

Tue 10/2

03:25-21:15

2 stops29h 20m

₹ 90,436

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 21/1

15:50-00:05

1 stop20h 45m

Chennai

Tue 10/2

01:50-23:59

2 stops33h 39m

₹ 90,526

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 21/1

15:50-00:05

1 stop20h 45m

Chennai

Sat 14/2

18:00-22:00

3 stops39h 30m

₹ 92,953

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 21/1

15:50-00:05

1 stop20h 45m

Chennai

Sat 14/2

01:50-22:00

2 stops31h 40m

₹ 93,402

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 20/1

07:15-02:20

2 stops31h 35m

Chennai

Fri 13/2

03:25-18:04

2 stops26h 09m

₹ 93,492

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Thu 22/1

12:44-00:05

2 stops23h 51m

Chennai

Wed 28/1

01:50-23:59

2 stops33h 39m

₹ 96,459

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 20/1

18:40-00:05

3 stops41h 55m

Chennai

Sat 14/2

18:00-22:00

3 stops39h 30m

₹ 96,998

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sat 14/2

13:33-02:30

2 stops25h 27m

Chennai

Sat 28/2

03:25-18:02

2 stops26h 07m

₹ 97,628

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 13/2

14:24-02:20

2 stops24h 26m

Chennai

Sat 28/2

03:25-18:02

2 stops26h 07m

₹ 97,628

Flights are sorted by cheapest return flights first.

Deals found on 7/12

Showing 1-10 of 19 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 5 December 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Chennai, you should look to book at least 52 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, February is the cheapest month in which you can book a flight from St. Louis to Chennai (average of ₹ 92,054). Flying from St. Louis to Chennai in August is currently the most expensive (average of ₹ 135,114). 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 13m. Lufthansa provides one of the quickest options available for as low as ₹ 90,076. St. Louis and Chennai are separated by a distance of 14169 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Chennai (average of ₹ 92,054). Flying from St. Louis to Chennai in August is currently the most expensive (average of ₹ 135,114). 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

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Alternative routes for St. Louis to Chennai

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Kansas City to Chennai flights

Fly with Cheapflights

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

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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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