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Cheap flights from St. Louis to Chennai from $444

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Chennai departing on 11/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 7:55 pmSTL-MAA
26h 25m2 stops
Multiple Airlines Logo
10:00 am - 9:48 pmMAA-STL
46h 18m2 stops
$969Multiple Airlines
Find Deal
Fri, Feb 27 - Sat, Mar 21
Qatar Airways Logo
1:35 pm - 2:30 amSTL-MAA
25h 25m2 stops
Qatar Airways Logo
4:05 am - 10:57 pmMAA-STL
30h 22m2 stops
$1,026Qatar Airways
Find Deal
Sun, Jan 25 - Sun, Feb 15
Qatar Airways Logo
3:20 pm - 2:30 amSTL-MAA
23h 40m2 stops
Qatar Airways Logo
3:25 am - 4:17 pmMAA-STL
48h 22m2 stops
$1,047Qatar Airways
Find Deal
Tue, Jan 13 - Mon, Jan 19
Qatar Airways Logo
5:15 am - 2:20 amSTL-MAA
57h 35m2 stops
Qatar Airways Logo
3:25 am - 10:25 pmMAA-STL
30h 30m2 stops
$1,053Qatar Airways
Find Deal
Thu, Nov 27 - Wed, Dec 3
Qatar Airways Logo
6:20 pm - 2:20 amSTL-MAA
44h 30m2 stops
Qatar Airways Logo
4:05 am - 7:27 pmMAA-STL
26h 52m2 stops
$1,054Qatar Airways
Find Deal
Tue, Dec 2 - Wed, Dec 10
Qatar Airways Logo
9:34 am - 2:30 amSTL-MAA
29h 26m2 stops
Qatar Airways Logo
4:05 am - 10:57 pmMAA-STL
30h 22m2 stops
$1,065Qatar Airways
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Fri, Jan 23 - Sun, Feb 15
Multiple Airlines Logo
5:05 am - 2:30 amSTL-MAA
33h 55m2 stops
Multiple Airlines Logo
9:40 pm - 4:50 pmMAA-STL
30h 40m2 stops
$1,110Multiple Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 16
Lufthansa Logo
12:44 pm - 12:05 amSTL-MAA
23h 51m2 stops
Lufthansa Logo
6:00 pm - 10:58 pmMAA-STL
40h 28m3 stops
$1,192Lufthansa
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Tue, Jan 13 - Tue, Jan 20
Lufthansa Logo
3:50 pm - 12:05 amSTL-MAA
20h 45m1 stop
Lufthansa Logo
1:50 am - 12:05 amMAA-STL
33h 45m2 stops
$1,257Lufthansa
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Wed, Jan 21 - Sun, Feb 15
Emirates Logo
3:11 pm - 2:15 amSTL-MAA
23h 34m2 stops
Emirates Logo
9:45 pm - 9:00 pmMAA-STL
34h 45m2 stops
$1,341Emirates
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Sun, Jan 25 - Mon, Feb 16

Qatar Airways flights from St. Louis to Chennai

Our best Qatar Airways deals on St. Louis to Chennai flight tickets
Qatar Airways
Jan 25
STL1:35 pmLambert-St Louis
25h 25m
2 stops
MAA2:30 amChennai
Feb 15
MAA4:05 amChennai
30h 22m
2 stops
STL10:57 pmLambert-St Louis
$1,026
Find similar
Qatar Airways
Jan 13
STL3:20 pmLambert-St Louis
23h 40m
2 stops
MAA2:30 amChennai
Jan 19
MAA3:25 amChennai
48h 22m
2 stops
STL4:17 pmLambert-St Louis
$1,047
Find similar
Qatar Airways
Nov 27
STL5:15 amLambert-St Louis
57h 35m
2 stops
MAA2:20 amChennai
Dec 3
MAA3:25 amChennai
30h 30m
2 stops
STL10:25 pmLambert-St Louis
$1,053
Find similar

Lufthansa flights from St. Louis to Chennai

Our best Lufthansa deals on St. Louis to Chennai flight tickets
Lufthansa
Jan 13
STL12:44 pmLambert-St Louis
23h 51m
2 stops
MAA12:05 amChennai
Jan 20
MAA6:00 pmChennai
40h 28m
3 stops
STL10:58 pmLambert-St Louis
$1,192
Find similar
Lufthansa
Jan 21
STL3:50 pmLambert-St Louis
20h 45m
1 stop
MAA12:05 amChennai
Feb 15
MAA1:50 amChennai
33h 45m
2 stops
STL12:05 amLambert-St Louis
$1,257
Find similar
Lufthansa
Apr 12
STL3:30 pmLambert-St Louis
22h 10m
1 stop
MAA12:10 amChennai
Apr 14
MAA1:55 amChennai
22h 05m
1 stop
STL1:30 pmLambert-St Louis
$1,283
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momondo 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, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from St. Louis to Chennai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 2/27

6:00 am-7:55 pm

2 stops26h 25m

Chennai

Sat 3/21

10:00 am-9:48 pm

2 stops46h 18m

$969

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 1/25

1:35 pm-2:30 am

2 stops25h 25m

Chennai

Sun 2/15

4:05 am-10:57 pm

2 stops30h 22m

$1,026

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 1/13

3:20 pm-2:30 am

2 stops23h 40m

Chennai

Mon 1/19

3:25 am-4:17 pm

2 stops48h 22m

$1,047

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Thu 11/27

5:15 am-2:20 am

2 stops57h 35m

Chennai

Wed 12/3

3:25 am-10:25 pm

2 stops30h 30m

$1,053

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 12/2

6:20 pm-2:20 am

2 stops44h 30m

Chennai

Wed 12/10

4:05 am-7:27 pm

2 stops26h 52m

$1,054

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 1/23

9:34 am-2:30 am

2 stops29h 26m

Chennai

Sun 2/15

4:05 am-10:57 pm

2 stops30h 22m

$1,065

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 12/3

5:05 am-2:30 am

2 stops33h 55m

Chennai

Tue 12/16

9:40 pm-4:50 pm

2 stops30h 40m

$1,110

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Tue 1/13

12:44 pm-12:05 am

2 stops23h 51m

Chennai

Tue 1/20

6:00 pm-10:58 pm

3 stops40h 28m

$1,192

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 1/21

3:50 pm-12:05 am

1 stop20h 45m

Chennai

Sun 2/15

1:50 am-12:05 am

2 stops33h 45m

$1,257

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Sun 1/25

3:11 pm-2:15 am

2 stops23h 34m

Chennai

Mon 2/16

9:45 pm-9:00 pm

2 stops34h 45m

$1,341

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chennai from

How to get the cheapest flight ticket from St. Louis to Chennai

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chennai?

In general, September is the cheapest month to fly from St. Louis to Chennai. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,243. If you’re not able to fly to Chennai in September, then February is your next best option. Flight prices from St. Louis to Chennai during February average around $1,248.

What is the cheapest day to depart on your flight to Chennai?

The cheapest day to depart on your flight to Chennai is on a Tuesday when prices can be found for as low as $1,353. This is often the case because there is less demand to fly during this day of the week. Flights from St. Louis to Chennai on a Wednesday will generally be more expensive and average around $1,678. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Chennai?

At noon is the cheapest time of day to fly from St. Louis to Chennai when you can find flight prices for as low as $1,546. Flying to Chennai at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Chennai is in the evening when prices are around $1,996.

How far in advance should I book a flight to Chennai?

You are more likely to see cheaper flights to Chennai from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Chennai for around $1,425 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chennai from St. Louis for as low as $1,229 on momondo.

Can stopping save me money on St. Louis to Chennai flights?

You could potentially save up to 9% on your flight if you consider stops on a St. Louis to Chennai flight.

When to book flights from St. Louis to Chennai

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Chennai according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Chennai (STL to MAA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Chennai

Direct flights

None
There are no direct flights from St. Louis to Chennai. There are no popular flight routes from St. Louis to Chennai.
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  • How far is Lambert-St Louis to Chennai by plane?

    Chennai is 8804.9 mi away from Lambert-St Louis. 20h 45m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Chennai Airport?

    Prices for flights from Lambert-St Louis Airport to Chennai Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Chennai Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Chennai Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Chennai Airport.

  • What documentation or ID do you need to fly to Chennai Airport?

    The travel and health documents you'll need for your trip to Chennai Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chennai Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Chennai?

Best airlines flying from St. Louis to Chennai

Compare and see reviews for airlines that fly from St. Louis to Chennai with momondo
Airline
Rating
Free Cancellation
Price
Qatar AirwaysPriceFrom $1,168Free CancellationRating
7.4
3,660 reviews
Search Qatar Airways flights
LufthansaPriceFrom $1,203Free CancellationRating
6.8
7,547 reviews
Search Lufthansa flights

Traveling to a place near Chennai?

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

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Chennai?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Chennai. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Chennai with flexible booking policies on momondo?

Flights from St. Louis to Chennai with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Chennai?

momondo provides multiple filters to help you find the best flight to Chennai from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Chennai right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Chennai flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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