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Cheap flights from St. Louis to Chennai from $796

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 12/25. 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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Find the cheapest flights from St. Louis to Chennai

Cheap round-trip flights

American Airlines Logo
10:15 am - 5:15 amSTL-MAA
32h 30m2 stops
American Airlines Logo
5:50 pm - 2:44 pmMAA-STL
31h 24m2 stops
$1,050American Airlines
Find Deal
Fri, Sep 12 - Sun, Sep 28
Qatar Airways Logo
7:23 am - 2:50 amSTL-MAA
32h 57m2 stops
Qatar Airways Logo
4:20 am - 7:23 pmMAA-STL
25h 33m2 stops
$1,084Qatar Airways
Find Deal
Wed, Sep 24 - Wed, Oct 15
Qatar Airways Logo
8:42 am - 9:10 amSTL-MAA
37h 58m2 stops
Qatar Airways Logo
4:05 am - 7:09 pmMAA-STL
25h 34m2 stops
$1,089Qatar Airways
Find Deal
Thu, Oct 9 - Thu, Oct 30
Qatar Airways Logo
7:23 am - 2:50 amSTL-MAA
32h 57m2 stops
Qatar Airways Logo
4:20 am - 8:26 pmMAA-STL
26h 36m2 stops
$1,129Qatar Airways
Find Deal
Fri, Sep 19 - Tue, Oct 14
Qatar Airways Logo
7:23 am - 2:50 amSTL-MAA
32h 57m2 stops
Qatar Airways Logo
4:20 am - 8:25 pmMAA-STL
26h 35m2 stops
$1,164Qatar Airways
Find Deal
Fri, Sep 5 - Sun, Sep 28
Lufthansa Logo
12:25 pm - 8:55 amSTL-MAA
34h 00m3 stops
Lufthansa Logo
1:50 am - 2:55 pmMAA-STL
23h 35m1 stop
$1,179Lufthansa
Find Deal
Fri, Oct 10 - Sat, Nov 1
Lufthansa Logo
3:30 pm - 12:10 amSTL-MAA
22h 10m1 stop
Lufthansa Logo
1:55 am - 1:30 pmMAA-STL
22h 05m1 stop
$1,185Lufthansa
Find Deal
Fri, Sep 5 - Sat, Sep 27
Lufthansa Logo
11:27 am - 12:10 amSTL-MAA
26h 13m2 stops
Lufthansa Logo
7:50 pm - 1:30 pmMAA-STL
28h 10m2 stops
$1,186Lufthansa
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Wed, Sep 24 - Tue, Oct 14
Air Canada Logo
4:05 pm - 12:05 amSTL-MAA
44h 30m2 stops
Air Canada Logo
1:50 am - 3:29 pmMAA-STL
49h 09m2 stops
$1,364Air Canada
Find Deal
Fri, Nov 7 - Sat, Nov 29
Cathay Pacific Logo
7:41 pm - 12:15 amSTL-MAA
42h 04m2 stops
Cathay Pacific Logo
1:50 am - 11:44 pmMAA-STL
32h 24m2 stops
$1,460Cathay Pacific
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Thu, Oct 9 - Wed, Oct 29

Lufthansa flights from St. Louis to Chennai

Our best Lufthansa deals on St. Louis to Chennai flight tickets
Lufthansa
Oct 10
STL12:25 pmLambert-St Louis
34h 00m
3 stops
MAA8:55 amChennai
Nov 1
MAA1:50 amChennai
23h 35m
1 stop
STL2:55 pmLambert-St Louis
$1,179
Find similar
Lufthansa
Sep 5
STL3:30 pmLambert-St Louis
22h 10m
1 stop
MAA12:10 amChennai
Sep 27
MAA1:55 amChennai
22h 05m
1 stop
STL1:30 pmLambert-St Louis
$1,185
Find similar
Lufthansa
Sep 24
STL11:27 amLambert-St Louis
26h 13m
2 stops
MAA12:10 amChennai
Oct 14
MAA7:50 pmChennai
28h 10m
2 stops
STL1:30 pmLambert-St Louis
$1,186
Find similar

Qatar Airways flights from St. Louis to Chennai

Our best Qatar Airways deals on St. Louis to Chennai flight tickets
Qatar Airways
Sep 24
STL7:23 amLambert-St Louis
32h 57m
2 stops
MAA2:50 amChennai
Oct 15
MAA4:20 amChennai
25h 33m
2 stops
STL7:23 pmLambert-St Louis
$1,084
Find similar
Qatar Airways
Oct 9
STL8:42 amLambert-St Louis
37h 58m
2 stops
MAA9:10 amChennai
Oct 30
MAA4:05 amChennai
25h 34m
2 stops
STL7:09 pmLambert-St Louis
$1,089
Find similar
Qatar Airways
Sep 19
STL7:23 amLambert-St Louis
32h 57m
2 stops
MAA2:50 amChennai
Oct 14
MAA4:20 amChennai
26h 36m
2 stops
STL8:26 pmLambert-St Louis
$1,129
Find similar

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 August 1, 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 9/12

10:15 am-5:15 am

2 stops32h 30m

Chennai

Sun 9/28

5:50 pm-2:44 pm

2 stops31h 24m

$1,050

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 9/24

7:23 am-2:50 am

2 stops32h 57m

Chennai

Wed 10/15

4:20 am-7:23 pm

2 stops25h 33m

$1,084

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Thu 10/9

8:42 am-9:10 am

2 stops37h 58m

Chennai

Thu 10/30

4:05 am-7:09 pm

2 stops25h 34m

$1,089

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 9/19

7:23 am-2:50 am

2 stops32h 57m

Chennai

Tue 10/14

4:20 am-8:26 pm

2 stops26h 36m

$1,129

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 9/5

7:23 am-2:50 am

2 stops32h 57m

Chennai

Sun 9/28

4:20 am-8:25 pm

2 stops26h 35m

$1,164

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 10/10

12:25 pm-8:55 am

3 stops34h 00m

Chennai

Sat 11/1

1:50 am-2:55 pm

1 stop23h 35m

$1,179

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 9/5

3:30 pm-12:10 am

1 stop22h 10m

Chennai

Sat 9/27

1:55 am-1:30 pm

1 stop22h 05m

$1,185

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Wed 9/24

11:27 am-12:10 am

2 stops26h 13m

Chennai

Tue 10/14

7:50 pm-1:30 pm

2 stops28h 10m

$1,186

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Fri 11/7

4:05 pm-12:05 am

2 stops44h 30m

Chennai

Sat 11/29

1:50 am-3:29 pm

2 stops49h 09m

$1,364

St. LouisChennai

STL - MAA

STLMAA

Lambert-St Louis

Thu 10/9

7:41 pm-12:15 am

2 stops42h 04m

Chennai

Wed 10/29

1:50 am-11:44 pm

2 stops32h 24m

$1,460

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 typical price of a round-trip flight between St. Louis and Chennai?

What is the cheapest month to fly to Chennai?

In general, October 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 $1,189. If you’re not able to fly to Chennai in October, then September is your next best option. Flight prices from St. Louis to Chennai during September average around $1,192.

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?

In the morning is the cheapest time of day to fly from St. Louis to Chennai when you can find flight prices for as low as $1,399. Flying to Chennai in the morning 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.

What is the cheapest Lambert-St Louis to Chennai flight route?

Fly from Lambert-St Louis to Chennai for the best Lambert-St Louis - Chennai flight prices

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 $1,428 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 $1,142 on momondo.

What cabin class options are available on Lambert-St Louis to Chennai flights?

There are 1 cabin classes available to choose from on Lambert-St Louis to Chennai flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

Best Price Found

$796

Fastest flight time

20h 45m

Direct flights

None

Airports in Chennai

1 airport
The best one-way flight to Chennai from St. Louis in the past 72 hours is $796. The best round-trip flight deal from St. Louis to Chennai found on momondo in the last 72 hours is $1,050.
The fastest flight from St. Louis to Chennai takes 20h 45m
There are no direct flights from St. Louis to Chennai. Popular non-direct route for this connection is Lambert-St Louis Airport - Chennai Airport.
There is 1 airport near Chennai: Chennai (MAA)
Search flight deals

  • 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
EmiratesPriceFrom $1,129Free CancellationRating
8.1
3,300 reviews
Search Emirates flights
Qatar AirwaysPriceFrom $1,158Free CancellationRating
7.4
3,609 reviews
Search Qatar Airways flights
LufthansaPriceFrom $1,187Free CancellationRating
6.8
7,276 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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