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$486+ Cheap flights from St. Louis (STL) to Chennai (MAA)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MAA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Chennai are usually found in October or November, booked 8 days in advance, depart on a Monday or Wednesday and return on a Tuesday

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 September 11, 2025.

Round-trip from

$1,148
(FlightHub)

One-way from

$486
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$1,259
From Lambert-St Louis to Chennai
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One-way flight from Lambert-St Louis to Chennai
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Highest demand for flights based on searches. 2% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($44 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Chennai

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 September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1811:51 amSTL - MAA
2 stops27h 09mQatar Airways
Tue 12/239:50 pmMAA - STL
2 stops26h 12mQatar Airways
Deal found 9/9$1,148
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/182:50 pmSTL - MAA
2 stops24h 10mMultiple Airlines
Sat 3/74:05 amMAA - STL
2 stops30h 02mMultiple Airlines
Deal found 9/9$1,159
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:15 pmSTL - MAA
2 stops26h 05mMultiple Airlines
Sun 10/264:20 amMAA - STL
2 stops25h 19mMultiple Airlines
Deal found 9/11$1,160
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/181:20 pmSTL - MAA
2 stops32h 20mQatar Airways
Sun 3/89:50 pmMAA - STL
2 stops35h 04mQatar Airways
Deal found 9/9$1,184
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:34 pmSTL - MAA
2 stops23h 46mQatar Airways
Sat 10/254:20 amMAA - STL
2 stops30h 06mQatar Airways
Deal found 9/9$1,185
This oojo deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/204:34 pmSTL - MAA
2 stops23h 46mQatar Airways
Fri 10/319:50 pmMAA - STL
2 stops34h 48mQatar Airways
Deal found 9/9$1,187
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:01 pmSTL - MAA
2 stops26h 19mMultiple Airlines
Sun 10/264:20 amMAA - STL
2 stops30h 04mMultiple Airlines
Deal found 9/8$1,200
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/136:00 amSTL - MAA
2 stops40h 40mQatar Airways
Mon 9/159:50 pmMAA - STL
2 stops36h 39mQatar Airways
Deal found 9/9$1,205
This Gurufare deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:28 pmSTL - MAA
3 stops52h 57mLufthansa
Fri 11/281:50 amMAA - STL
2 stops33h 24mLufthansa
Deal found 9/9$1,217
This FlightHub deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/36:00 amSTL - MAA
2 stops34h 20mQatar Airways
Sun 10/269:50 pmMAA - STL
2 stops33h 06mQatar Airways
Deal found 9/8$1,222

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 11, 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

Tue 11/18

2:50 pm-9:10 am

2 stops30h 50m

Chennai

Mon 12/22

4:05 am-12:32 pm

2 stops43h 57m

$1,151

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 10/3

2:01 pm-2:50 am

2 stops26h 19m

Chennai

Sun 10/26

4:20 am-11:54 pm

2 stops30h 04m

$1,200

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 10/7

11:49 am-12:10 am

2 stops25h 51m

Chennai

Fri 11/28

1:50 am-11:44 pm

2 stops33h 24m

$1,225

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 11/7

3:50 pm-12:05 am

1 stop20h 45m

Chennai

Sat 11/29

1:50 am-9:40 pm

2 stops31h 20m

$1,237

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 10/3

3:30 pm-12:10 am

1 stop22h 10m

Chennai

Fri 10/31

6:40 am-5:39 pm

3 stops45h 29m

$1,261

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 11/16

4:05 pm-5:35 am

2 stops50h 00m

Chennai

Sun 12/28

9:45 am-3:29 pm

2 stops41h 14m

$1,267

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 11/19

2:50 pm-2:30 am

2 stops24h 10m

Chennai

Sat 11/29

4:05 am-6:17 pm

2 stops49h 42m

$1,282

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 10/10

3:30 pm-12:10 am

1 stop22h 10m

Chennai

Tue 12/23

1:50 am-1:55 pm

1 stop23h 35m

$1,296

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 9/19

7:55 pm-12:15 am

3 stops41h 50m

$486

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 10/7

7:52 pm-2:10 am

3 stops43h 48m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results
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2

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 round-trip 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 round-trip flight from St. Louis to Chennai. Price data was last updated on August 29, 2025.

Booking 7 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Chennai. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Chennai (average of $936). Flying from St. Louis to Chennai in December is currently the most expensive (average of $1,531). 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.

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

Find hourly flight availability from St. Louis to Chennai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 23% on flights from St. Louis to Chennai by exploring options for tickets in the morning.

How much does it cost to fly round-trip from St. Louis to Chennai?

Reviews of airlines servicing Chennai

Get insights into the airlines that provide service to Chennai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chennai. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from St. Louis to Chennai, such as Qatar Airways and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,624 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,624 reviews
Qatar Airways
7.4
Good
3,624 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Lufthansa
6.8
Okay
7,409 reviews
Qatar Airways
7.4
Good
3,624 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

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?

    Departing from St. Louis to Chennai will take you 25h 51m. The distance from St. Louis to Chennai is about 8804 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to Chennai round-trip?

    Qatar Airways, at $1,150, was found to be the cheapest airline from St. Louis to Chennai. An alternate airline flying to your destination would be Lufthansa. These flights start at 19% lower than the current average price 3 months from now.

  • 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 vacation 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, September is the cheapest month in which you can book a flight from St. Louis to Chennai (average of $936). Flying from St. Louis to Chennai in December is currently the most expensive (average of $1,531). 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

Traveling 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

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Chennai flights

Top 2 airlines flying from St. Louis to Chennai

Discover the top 2 airlines that operate flights from St. Louis to Chennai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,150Average$1,525FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$1,183Average$1,446FlexibilityNo cancel feeOn-time76%

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