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Cheap flights from Chennai to St. Louis from ₹ 65,188

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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
MAA — STL
19 Apr — 26 Apr1
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 20 March 2026.

Tue 9/605:35
MAA
-
STL
2 stops28h 54m
British Airways
Thu 12/1118:13
STL
-
MAA
2 stops23h 52m
British Airways
Deal found 15/3₹ 90,145
Mon 30/321:10
MAA
-
STL
2 stops27h 27m
Multiple Airlines
Fri 28/807:23
STL
-
MAA
2 stops32h 32m
Multiple Airlines
Deal found 18/3₹ 91,263
Wed 1/416:05
MAA
-
STL
2 stops32h 08m
Multiple Airlines
Fri 4/907:32
STL
-
MAA
2 stops26h 08m
Multiple Airlines
Deal found 17/3₹ 91,449
Fri 5/605:35
MAA
-
STL
2 stops28h 54m
British Airways
Thu 12/1114:50
STL
-
MAA
2 stops27h 15m
British Airways
Deal found 16/3₹ 95,081
Fri 5/605:35
MAA
-
STL
2 stops28h 54m
British Airways
Tue 8/916:18
STL
-
MAA
2 stops24h 42m
British Airways
Deal found 16/3₹ 109,329
Fri 25/905:35
MAA
-
STL
2 stops38h 20m
British Airways
Mon 28/913:15
STL
-
MAA
2 stops27h 45m
British Airways
Deal found 15/3₹ 114,917
Thu 17/905:35
MAA
-
STL
2 stops46h 57m
British Airways
Mon 21/909:46
STL
-
MAA
2 stops55h 14m
British Airways
Deal found 19/3₹ 118,456
Wed 3/601:55
MAA
-
STL
2 stops29h 51m
Lufthansa
Tue 8/913:18
STL
-
MAA
2 stops24h 22m
Lufthansa
Deal found 16/3₹ 119,107
Mon 1/601:55
MAA
-
STL
2 stops29h 00m
Air Canada
Tue 8/912:10
STL
-
MAA
2 stops25h 30m
Air Canada
Deal found 16/3₹ 119,666

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 20 March 2026.

Round-trip from

₹ 90,145

One-way from

₹ 65,188

Popular in

May

Cheapest in

December

Average price

₹ 125,906
British Airways
  • British Airways
  • 9/6-12/11
  • 4 total stops
  • 52h 46m total
  • Chennai to St. Louis
Search Deals
8/5
  • 8/5
  • 2 total stops
  • 39h 20m total
  • Chennai to St. Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (₹ 1,000,165 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (₹ 343,169 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 20 March 2026.
Use the filters below to find and compare flights from Chennai to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 30/3

21:10-14:07

2 stops27h 27m

Lambert-St Louis

Fri 28/8

07:23-02:25

2 stops32h 32m

₹ 91,263

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sat 2/5

16:05-16:41

2 stops35h 06m

Lambert-St Louis

Sat 9/5

08:00-02:50

2 stops32h 20m

₹ 91,263
Fastest return journey

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 4/6

01:55-15:46

2 stops24h 21m

Lambert-St Louis

Mon 7/9

13:18-00:10

2 stops24h 22m

₹ 123,950

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 4/6

09:50-21:16

2 stops45h 56m

Lambert-St Louis

Sat 5/9

15:10-08:05

2 stops30h 25m

₹ 128,047

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 11/6

05:35-23:59

2 stops28h 54m

Lambert-St Louis

Mon 9/11

15:59-05:35

2 stops26h 06m

₹ 130,469

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Tue 9/6

05:35-23:59

2 stops28h 54m

Lambert-St Louis

Fri 13/11

11:51-05:35

2 stops54h 14m

₹ 130,469

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Thu 11/6

05:35-23:59

2 stops28h 54m

Lambert-St Louis

Wed 11/11

18:13-05:35

2 stops23h 52m

₹ 130,469

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Sat 6/6

04:05-21:16

2 stops27h 41m

Lambert-St Louis

Sat 5/9

15:10-02:30

2 stops24h 50m

₹ 131,679

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Wed 29/4

21:55-16:41

2 stops29h 16m

Lambert-St Louis

Wed 3/6

06:00-20:10

2 stops27h 40m

₹ 133,914

ChennaiSt. Louis

MAA - STL

MAASTL

Chennai

Mon 29/6

03:55-22:58

2 stops29h 33m

Lambert-St Louis

Mon 7/9

11:48-02:50

2 stops28h 32m

₹ 134,473

Flights are sorted by cheapest return flights first.

Deals found on 16/3

Showing 1-10 of 21 resultsSorted by cheapest first
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2
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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

How much does it cost for a return flight from Chennai to St. Louis?

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 20 March 2026.
See what other customers who have flown with 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.
British Airways
6.7
Okay
7,804 reviews
Check prices

Crew

7.6

Comfort

6.8

Overall

6.7

Boarding

6.9

Food

6.4

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,804 reviews
British Airways
6.7
Okay
7,804 reviews
Check prices

Crew

7.6

Comfort

6.8

Overall

6.7

Boarding

6.9

Food

6.4

Entertainment

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 24h 21m. Fly via Lufthansa, Emirates, or British Airways 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 is the cheapest airline to fly from Chennai to St. Louis round-trip?

    Currently priced at ₹ 83,887, 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. Users have found that British Airways is 31% 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.

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 airline flying from Chennai to St. Louis

Discover the top airline 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 20 March 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest₹ 83,887Average₹ 108,796FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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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