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$525+ Cheap flights from St. Louis (STL) to Bengaluru (BLR)

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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BLR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Bengaluru Intl are usually found in February or March, booked 50 days in advance, depart on a Wednesday or Monday and return on a Friday

Cheap flight deals from St. Louis to Bangalore

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Bangalore (BLR). 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 August 14, 2025.

Round-trip from

$1,157
(Indian Eagle)

One-way from

$525
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$1,188
From Lambert-St Louis to Bengaluru Intl
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One-way flight from Lambert-St Louis to Bengaluru Intl
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Highest demand for flights based on searches. 5% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from St. Louis to Bangalore

Cheapest flights from St. Louis to Bangalore
Explore the most affordable flight options available from St. Louis to Bangalore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Indian Eagle deal was found by Cheapflights users on 8/13. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/263:30 pmSTL - BLR
1 stop23h 20mLufthansa
Fri 10/242:10 amBLR - STL
2 stops24h 04mLufthansa
Deal found 8/13$1,157
This Gurufare deal was found by Cheapflights users on 8/12. 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.
Sat 11/153:14 pmSTL - BLR
2 stops22h 16mLufthansa
Sat 1/172:50 amBLR - STL
2 stops29h 50mLufthansa
Deal found 8/12$1,162
This FlightHub deal was found by Cheapflights users on 8/14. 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 9/277:23 amSTL - BLR
2 stops32h 37mQatar Airways
Sat 10/254:00 amBLR - STL
2 stops28h 36mQatar Airways
Deal found 8/14$1,178
This KAYAK deal was found by Cheapflights users on 8/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/274:05 pmSTL - BLR
2 stops21h 55mAir Canada
Fri 10/242:10 amBLR - STL
2 stops27h 58mAir Canada
Deal found 8/13$1,204
This KAYAK deal was found by Cheapflights users on 8/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/197:04 pmSTL - BLR
2 stops43h 46mLufthansa
Sat 10/42:10 amBLR - STL
2 stops24h 04mLufthansa
Deal found 8/13$1,205
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2011:51 amSTL - BLR
2 stops27h 49mDelta
Mon 12/82:30 amBLR - STL
2 stops25h 40mDelta
Deal found 8/13$1,234
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/191:03 pmSTL - BLR
2 stops26h 57mMultiple Airlines
Sun 10/54:00 amBLR - STL
2 stops25h 40mMultiple Airlines
Deal found 8/13$1,236
This KAYAK deal was found by Cheapflights users on 8/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/204:05 pmSTL - BLR
2 stops22h 15mAir Canada
Fri 11/282:50 amBLR - STL
2 stops48h 09mAir Canada
Deal found 8/12$1,278
This Booking.com deal was found by Cheapflights users on 8/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/124:05 pmSTL - BLR
3 stops33h 30mMultiple Airlines
Mon 1/197:00 amBLR - STL
2 stops43h 59mMultiple Airlines
Deal found 8/12$1,294
This Japan Airlines deal was found by Cheapflights users on 8/11. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:54 pmSTL - BLR
2 stops48h 26mJapan Airlines
Tue 1/202:55 amBLR - STL
2 stops43h 43mJapan Airlines
Deal found 8/11$1,299

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Bangalore 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 August 14, 2025.
Use the filters below to find and compare flights from St. Louis to Bengaluru that are best for you.

Fly from

St. Louis

Fly to

Bangalore

Route

Depart

Return

Price

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Fri 9/26

3:30 pm-1:20 am

1 stop23h 20m

Bengaluru Intl

Fri 10/24

2:10 am-3:44 pm

2 stops24h 04m

$1,157

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sat 9/27

12:25 pm-1:20 am

2 stops26h 25m

Bengaluru Intl

Fri 10/24

2:10 am-3:44 pm

2 stops24h 04m

$1,161

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sat 11/15

3:14 pm-1:00 am

2 stops22h 16m

Bengaluru Intl

Sat 1/17

2:50 am-9:10 pm

2 stops29h 50m

$1,162

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sat 9/27

7:23 am-2:30 am

2 stops32h 37m

Bengaluru Intl

Sat 10/25

4:00 am-10:06 pm

2 stops28h 36m

$1,178

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sat 9/27

4:05 pm-12:30 am

2 stops21h 55m

Bengaluru Intl

Fri 10/24

2:10 am-7:38 pm

2 stops27h 58m

$1,204

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Fri 9/19

7:04 pm-1:20 am

2 stops43h 46m

Bengaluru Intl

Sat 10/4

2:10 am-3:44 pm

2 stops24h 04m

$1,205

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Thu 11/20

11:51 am-3:10 am

2 stops27h 49m

Bengaluru Intl

Mon 12/8

2:30 am-4:40 pm

2 stops25h 40m

$1,234

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Fri 9/19

1:03 pm-2:30 am

2 stops26h 57m

Bengaluru Intl

Sun 10/5

4:00 am-7:10 pm

2 stops25h 40m

$1,236

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Thu 11/20

4:05 pm-1:50 am

2 stops22h 15m

Bengaluru Intl

Fri 11/28

2:50 am-3:29 pm

2 stops48h 09m

$1,278

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sun 10/19

11:32 am-7:45 pm

3 stops45h 43m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 13 results
1
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Best time to book a flight from St. Louis to Bangalore

Have a flexible travel schedule? Discover the best time to fly to Bangalore 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 Bengaluru

How far ahead should I book a flight from St. Louis to Bengaluru?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Bangalore. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from St. Louis to Bengaluru, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Bengaluru (average of $893). Flying from St. Louis to Bengaluru in December is currently the most expensive (average of $1,434). 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 BLR?

Find hourly flight availability from St. Louis to Bangalore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Bengaluru in the morning. If you’re flexible enough to do this you can expect to save up to 1% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Bangalore

Get insights into the airlines that provide service to Bangalore. 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 Bangalore. Reviews last updated August 14, 2025.
See what other customers who have flown with Japan Airlines, Delta, and KLM from St. Louis to Bengaluru have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Japan Airlines
8.3
Very good
1,545 reviews

Crew

8.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Japan Airlines
8.3
Very good
1,545 reviews
Japan Airlines
8.3
Very good
1,545 reviews

Crew

8.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Delta
8.0
Very good
7,980 reviews
Japan Airlines
8.3
Very good
1,545 reviews

Crew

8.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
KLM
7.8
Good
1,381 reviews
Japan Airlines
8.3
Very good
1,545 reviews

Crew

8.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Qatar Airways
7.4
Good
3,608 reviews
Japan Airlines
8.3
Very good
1,545 reviews

Crew

8.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.
Lufthansa
6.8
Okay
7,317 reviews
Japan Airlines
8.3
Very good
1,545 reviews

Crew

8.7

Comfort

8.2

Boarding

8.4

Overall

8.3

Entertainment

7.8

Food

7.7

Reviews

1 / 20
2.0
Mediocre

Roger,Jun 2025

ORD - PIT

My bag was at O’Hare airport for five hours waiting on my next flight because it was delayed for 2 1/2 hours and they couldn’t put it on the right goddamn airplane. I am home in Pennsylvania without my bag and all my stuff.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Bangalore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Currently priced at $1,030, Qatar Airways will fly you from St. Louis to Bengaluru and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and Lufthansa - these airlines can fly you to your destination from $1,174 and $1,184, respectively. Users have found that Qatar Airways is 24% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Bangalore 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 Bengaluru?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Bengaluru (average of $893). Flying from St. Louis to Bengaluru in December is currently the most expensive (average of $1,434). 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 St. Louis to Bangalore

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

Top 5 airlines flying from St. Louis to Bangalore

Discover the top 5 airlines that operate flights from St. Louis to Bangalore. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,030Average$1,282FlexibilityNo cancel feeOn-time68%
KLMCheapest$1,174Average$1,615FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$1,184Average$1,511FlexibilityNo cancel feeOn-time76%
DeltaCheapest$1,229Average$1,420FlexibilityNo cancel feeOn-timeN/A
Japan AirlinesCheapest$1,251Average$1,888FlexibilityNo cancel feeOn-time79%

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