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$439+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BLR
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
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Find cheap flights from St. Louis to Bangalore with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lambert-St Louis to Bengaluru Intl are usually found in March or February, booked 50 days in advance, depart on a Wednesday or Monday and return on a Friday

Cheap 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 December 9, 2025.

This Etihad Airways deal was found by Cheapflights users on 12/9. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:02 amSTL - BLR
2 stops39h 13mMultiple Airlines
Mon 2/210:00 pmBLR - STL
2 stops28h 27mMultiple Airlines
Deal found 12/9$1,239
This Ovago deal was found by Cheapflights users on 12/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:50 pmSTL - BLR
1 stop22h 30mLufthansa
Sun 2/12:50 amBLR - STL
2 stops32h 39mLufthansa
Deal found 12/9$1,257
This Delta deal was found by Cheapflights users on 12/6. 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 12/257:00 amSTL - BLR
2 stops29h 45mDelta
Mon 1/192:00 amBLR - STL
2 stops33h 07mDelta
Deal found 12/6$1,462
This Delta deal was found by Cheapflights users on 12/6. 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.
Wed 12/245:55 pmSTL - BLR
2 stops43h 15mDelta
Wed 1/212:00 amBLR - STL
2 stops32h 55mDelta
Deal found 12/6$1,470
This Delta deal was found by Cheapflights users on 12/6. 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.
Wed 12/245:55 pmSTL - BLR
2 stops43h 15mDelta
Mon 1/192:00 amBLR - STL
2 stops33h 07mDelta
Deal found 12/6$1,471
This Delta deal was found by Cheapflights users on 12/6. 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.
Wed 12/245:55 pmSTL - BLR
2 stops43h 15mDelta
Tue 1/202:30 amBLR - STL
2 stops32h 37mDelta
Deal found 12/6$1,472
This KAYAK deal was found by Cheapflights users on 12/6. 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.
Wed 12/2411:05 amSTL - BLR
2 stops50h 30mLufthansa
Tue 1/203:30 amBLR - STL
1 stop21h 55mLufthansa
Deal found 12/6$1,489
This KAYAK deal was found by Cheapflights users on 12/6. 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 12/263:50 pmSTL - BLR
1 stop22h 30mLufthansa
Tue 1/202:50 amBLR - STL
2 stops31h 38mLufthansa
Deal found 12/6$1,496
This KAYAK deal was found by Cheapflights users on 12/6. 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.
Mon 12/226:35 pmSTL - BLR
2 stops43h 00mLufthansa
Mon 1/192:50 amBLR - STL
2 stops31h 38mLufthansa
Deal found 12/6$1,520
This Gotogate deal was found by Cheapflights users on 12/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:05 amSTL - BLR
2 stops50h 30mLufthansa
Mon 1/199:00 pmBLR - STL
3 stops33h 57mLufthansa
Deal found 12/6$1,522

Find 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 December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$977
(American Airlines)

One-way from

$439
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$1,578
Provider with most accurate pricing for Lambert-St Louis-Bengaluru Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Bengaluru Intl flights.
Search Deals
From Lambert-St Louis to Bengaluru Intl
Search Deals
One-way flight from Lambert-St Louis to Bengaluru Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 9, 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 1/16

6:10 am-5:15 am

2 stops35h 35m

Bengaluru Intl

Thu 1/29

2:00 am-7:27 pm

2 stops52h 57m

$1,023

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sat 2/14

3:38 pm-12:40 am

2 stops21h 32m

Bengaluru Intl

Mon 3/9

2:30 am-5:05 pm

2 stops25h 05m

$1,032

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sat 2/14

4:05 pm-1:50 am

2 stops22h 15m

Bengaluru Intl

Tue 3/3

3:30 am-1:55 pm

1 stop21h 55m

$1,168

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Sun 1/25

4:05 pm-1:50 am

2 stops46h 15m

Bengaluru Intl

Wed 1/28

2:50 am-3:29 pm

2 stops48h 09m

$1,170

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Wed 12/31

6:02 am-8:45 am

2 stops39h 13m

Bengaluru Intl

Mon 2/2

10:00 pm-2:57 pm

2 stops28h 27m

$1,239

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Fri 1/16

3:50 pm-1:05 am

2 stops21h 45m

Bengaluru Intl

Thu 1/29

2:50 am-7:27 pm

3 stops28h 07m

$1,339

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Thu 12/25

7:00 am-12:15 am

2 stops29h 45m

Bengaluru Intl

Mon 1/19

2:00 am-11:37 pm

2 stops33h 07m

$1,462

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Wed 12/24

5:55 pm-12:40 am

2 stops43h 15m

Bengaluru Intl

Mon 1/19

2:00 am-11:37 pm

2 stops33h 07m

$1,471

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Wed 12/24

5:55 pm-12:40 am

2 stops43h 15m

Bengaluru Intl

Tue 1/20

2:30 am-11:37 pm

2 stops32h 37m

$1,472

St. LouisBengaluru

STL - BLR

STLBLR

Lambert-St Louis

Fri 12/26

3:50 pm-1:50 am

1 stop22h 30m

Bengaluru Intl

Wed 1/21

2:50 am-7:27 pm

2 stops28h 07m

$1,531

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 21 results
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Compare providers for flights from St. Louis to Bangalore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Bangalore in December.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
GurufarePrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Bengaluru flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Bengaluru flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from St. Louis-Bengaluru flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Bengaluru flights, Cheapflights users trust Gurufare the most. Gurufare has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Bengaluru flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 5, 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, March is the cheapest month in which you can book a flight from St. Louis to Bengaluru (average of $1,019). Flying from St. Louis to Bengaluru in July is currently the most expensive (average of $1,360). 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 December 9, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Bengaluru in the evening. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the afternoon.

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 December 9, 2025.
See what other customers who have flown with Qatar Airways and Lufthansa 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.
Qatar Airways
7.4
Good
3,676 reviews

Crew

7.9

Entertainment

7.4

Boarding

7.5

Food

7.3

Overall

7.4

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,676 reviews
Qatar Airways
7.4
Good
3,676 reviews

Crew

7.9

Entertainment

7.4

Boarding

7.5

Food

7.3

Overall

7.4

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Lufthansa
6.8
Okay
7,619 reviews
Qatar Airways
7.4
Good
3,676 reviews

Crew

7.9

Entertainment

7.4

Boarding

7.5

Food

7.3

Overall

7.4

Comfort

7.4

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

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.

  • How long is the flight from St. Louis to Bengaluru?

    There are many flights that can get you from St. Louis to Bengaluru in 21h 32m. Fly via Delta, KLM, or Air Canada to get the fastest option. The distance from St. Louis to Bengaluru is about 8760 mi. This flight may include one or multiple stops.

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

    Currently priced at $1,025, 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. Check Cheapflights for deals on Lufthansa for as low as $1,188. 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, March is the cheapest month in which you can book a flight from St. Louis to Bengaluru (average of $1,019). Flying from St. Louis to Bengaluru in July is currently the most expensive (average of $1,360). 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 2 airlines flying from St. Louis to Bangalore

Discover the top 2 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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,025Average$1,267FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$1,188Average$1,546FlexibilityNo cancel feeOn-time76%

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