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Cheap flights from Chennai to St. Louis from ₹ 53,511

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 24/3. Fares are subject to change and may not be available on all flights or dates of travel.
MAA — STL
1 Feb — 8 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chennai to St. Louis

Enter your travel dates to find the best prices.

Cheapest flights from Chennai to St. Louis
Explore the most affordable flight options available from Chennai to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 January 2026.

Fri 25/905:35MAA - STL
2 stops46h 57mBritish Airways
Mon 28/912:47STL - MAA
2 stops28h 13mBritish Airways
Deal found 1/1₹ 82,159
Sun 15/207:35MAA - STL
2 stops27h 43mBritish Airways
Sun 22/218:57STL - MAA
2 stops23h 08mBritish Airways
Deal found 1/1₹ 97,654
Sun 14/601:55MAA - STL
1 stop22h 00mMultiple Airlines
Tue 8/913:30STL - MAA
2 stops24h 10mMultiple Airlines
Deal found 2/1₹ 121,166
Wed 10/605:35MAA - STL
2 stops25h 21mBritish Airways
Thu 10/916:14STL - MAA
2 stops24h 46mBritish Airways
Deal found 2/1₹ 122,337
Sun 14/601:55MAA - STL
1 stop22h 00mLufthansa
Tue 8/915:30STL - MAA
1 stop22h 10mLufthansa
Deal found 2/1₹ 123,869
Mon 15/605:35MAA - STL
2 stops26h 23mBritish Airways
Tue 8/913:37STL - MAA
2 stops27h 23mBritish Airways
Deal found 2/1₹ 126,751
Tue 9/601:55MAA - STL
1 stop22h 00mMultiple Airlines
Thu 10/913:15STL - MAA
2 stops27h 05mMultiple Airlines
Deal found 2/1₹ 127,022
Sun 14/601:55MAA - STL
2 stops28h 40mAir Canada
Tue 8/909:30STL - MAA
3 stops28h 10mAir Canada
Deal found 2/1₹ 150,174
Tue 9/601:55MAA - STL
2 stops28h 49mLufthansa
Thu 10/913:27STL - MAA
3 stops32h 48mLufthansa
Deal found 2/1₹ 152,156

Find flight deals from Chennai to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Chennai (MAA) to St. Louis (STL). 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 2 January 2026.

Round-trip from

₹ 97,654

One-way from

₹ 53,511

Popular in

February

Cheapest in

December

Average price

₹ 113,509
British Airways
  • British Airways
  • 15/2-22/2
  • 4 total stops
  • 50h 51m total
  • Chennai to St. Louis
Search Deals
24/3
  • 24/3
  • 2 total stops
  • 41h 06m total
  • Chennai to St. Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (₹ 1,765,698 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (₹ 636,542 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chennai to St. Louis 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 2 January 2026.
Use the filters below to find and compare flights from Chennai to St. Louis that are best for you.

Fly from

Chennai

Fly to

St. Louis

Route

Depart

Return

Price

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 15/2

07:35-23:48

2 stops27h 43m

Lambert-St Louis

Sun 22/2

18:57-05:35

2 stops23h 08m

₹ 97,654

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 10/6

05:35-20:26

2 stops25h 21m

Lambert-St Louis

Thu 10/9

16:14-03:30

2 stops24h 46m

₹ 122,337

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 14/6

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Tue 8/9

15:30-00:10

1 stop22h 10m

₹ 123,869

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 15/6

05:35-21:28

2 stops26h 23m

Lambert-St Louis

Tue 8/9

13:37-03:30

2 stops27h 23m

₹ 126,751

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 9/6

01:55-13:25

1 stop22h 00m

Lambert-St Louis

Thu 10/9

13:15-02:50

2 stops27h 05m

₹ 127,022

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sun 14/6

01:55-20:05

2 stops28h 40m

Lambert-St Louis

Tue 8/9

09:30-00:10

3 stops28h 10m

₹ 150,174

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 9/6

01:55-20:14

2 stops28h 49m

Lambert-St Louis

Thu 10/9

13:27-08:45

3 stops32h 48m

₹ 152,156

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sat 14/2

01:50-17:44

2 stops27h 24m

Lambert-St Louis

Sun 22/2

18:55-00:05

3 stops41h 40m

₹ 152,246

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 24/3

03:55-10:31

2 stops41h 06m

₹ 53,511

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 26/3

16:10-21:11

2 stops39h 31m

₹ 73,150

Flights are sorted by cheapest return flights first.

Deals found on 1/1

Showing 1-10 of 14 results
1
2

Best time to book a flight from Chennai to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Chennai 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 Chennai to St. Louis

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

Currently, December is the cheapest month in which you can book a flight from Chennai to St. Louis (average of ₹ 80,988). Flying from Chennai to St. Louis in February is currently the most expensive (average of ₹ 145,579). 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 2 January 2026.
See what other customers who have flown with Lufthansa and British Airways from Chennai to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,676 reviews
Check prices

Comfort

6.8

Overall

6.8

Boarding

7.0

Entertainment

6.4

Crew

7.6

Food

6.3

Reviews

1 / 20
4.0
Okay

Djermouli,Dec 2025

FRA - SFO

I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines
Lufthansa
6.8
Okay
7,676 reviews
Lufthansa
6.8
Okay
7,676 reviews
Check prices

Comfort

6.8

Overall

6.8

Boarding

7.0

Entertainment

6.4

Crew

7.6

Food

6.3

Reviews

1 / 20
4.0
Okay

Djermouli,Dec 2025

FRA - SFO

I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines
British Airways
6.7
Okay
7,642 reviews
Lufthansa
6.8
Okay
7,676 reviews
Check prices

Comfort

6.8

Overall

6.8

Boarding

7.0

Entertainment

6.4

Crew

7.6

Food

6.3

Reviews

1 / 20
4.0
Okay

Djermouli,Dec 2025

FRA - SFO

I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines

Related info for your journey

Find useful and relevant information for your journey from Chennai to St. Louis. 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 Chennai to St. Louis?

    There are many flights that can get you from Chennai to St. Louis in 22h. Fly via British Airways or Lufthansa to get the fastest option. Chennai and St. Louis are separated by a distance of 14169 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at ₹ 87,462, British Airways will fly you from Chennai to St. Louis and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Lufthansa for as low as ₹ 106,887. Users have found that British Airways is 28% cheaper than the other options available to this destination.

  • Can I find deals for flights from Chennai to St. Louis that include hotel bookings?

    Yes. In addition to deals on Chennai to St. Louis flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chennai to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chennai to St. Louis.

  • Can I find deals for business class flights from Chennai to St. Louis?

    Yes. Cheapflights offers flight deals from Chennai to St. Louis 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 Chennai to St. Louis?

    Currently, December is the cheapest month in which you can book a flight from Chennai to St. Louis (average of ₹ 80,988). Flying from Chennai to St. Louis in February is currently the most expensive (average of ₹ 145,579). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chennai to St. Louis

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

Top 2 airlines flying from Chennai to St. Louis

Discover the top 2 airlines that operate flights from Chennai to St. Louis. 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 454,620 searches. Data last updated 2 January 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest₹ 87,462Average₹ 109,455FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest₹ 106,887Average₹ 126,975FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Chennai to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Chennai to St. Louis?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chennai to St. Louis.

Can Cheapflights find flights from Chennai to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Chennai 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 Chennai to St. Louis become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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