$558 Cheap Flights from St. Louis (STL) to Bengaluru (BLR)

View $558 flight on Sat, Nov 15, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Kempegowda Intl. Airport (BLR)

Cheap Flights from St. Louis to Bengaluru (STL-BLR)

Prices were available within the past 7 days and start at $558 for one-way flights and $1,028 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Jan 21 - Wed, Feb 25
STL
St. Louis
BLR
Bengaluru
$1,028 Roundtrip, found 4 hours ago
$1,028
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Jan 21 from St. Louis to Bengaluru, returning Wed, Feb 25, priced at $1,028 found 4 hours ago
Delta
Sat, Nov 15 - Wed, Dec 3
STL
St. Louis
BLR
Bengaluru
$1,033 Roundtrip, found 3 days ago
$1,033
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Nov 15 from St. Louis to Bengaluru, returning Wed, Dec 3, priced at $1,033 found 3 days ago
Delta
Tue, Nov 11 - Thu, Dec 4
STL
St. Louis
BLR
Bengaluru
$1,034 Roundtrip, found 5 days ago
$1,034
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Nov 11 from St. Louis to Bengaluru, returning Thu, Dec 4, priced at $1,034 found 5 days ago
Delta
Wed, Oct 29 - Fri, Nov 14
STL
St. Louis
BLR
Bengaluru
$1,035 Roundtrip, found 21 hours ago
$1,035
Roundtrip
found 21 hours ago
Select Delta flight, departing Wed, Oct 29 from St. Louis to Bengaluru, returning Fri, Nov 14, priced at $1,035 found 21 hours ago
American Airlines
Tue, Oct 28 - Thu, Nov 6
STL
St. Louis
BLR
Bengaluru
$1,039 Roundtrip, found 3 days ago
$1,039
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Oct 28 from St. Louis to Bengaluru, returning Thu, Nov 6, priced at $1,039 found 3 days ago
Virgin Atlantic
Wed, Jan 21 - Wed, Feb 25
STL
St. Louis
BLR
Bengaluru
$1,044 Roundtrip, found 4 hours ago
$1,044
Roundtrip
found 4 hours ago
Select Virgin Atlantic flight, departing Wed, Jan 21 from St. Louis to Bengaluru, returning Wed, Feb 25, priced at $1,044 found 4 hours ago
American Airlines
Mon, Nov 17 - Sat, Dec 6
STL
St. Louis
BLR
Bengaluru
$1,049 Roundtrip, found 5 days ago
$1,049
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Nov 17 from St. Louis to Bengaluru, returning Sat, Dec 6, priced at $1,049 found 5 days ago
Virgin Atlantic
Fri, Jan 30 - Tue, Mar 3
STL
St. Louis
BLR
Bengaluru
$1,050 Roundtrip, found 2 days ago
$1,050
Roundtrip
found 2 days ago
Select Virgin Atlantic flight, departing Fri, Jan 30 from St. Louis to Bengaluru, returning Tue, Mar 3, priced at $1,050 found 2 days ago
KLM
Wed, Jan 21 - Wed, Feb 25
STL
St. Louis
BLR
Bengaluru
$1,055 Roundtrip, found 4 hours ago
$1,055
Roundtrip
found 4 hours ago
Select KLM flight, departing Wed, Jan 21 from St. Louis to Bengaluru, returning Wed, Feb 25, priced at $1,055 found 4 hours ago
Qatar Airways
Wed, Nov 5 - Fri, Nov 21
STL
St. Louis
BLR
Bengaluru
$1,079 Roundtrip, found 6 days ago
$1,079
Roundtrip
found 6 days ago
Select Qatar Airways flight, departing Wed, Nov 5 from St. Louis to Bengaluru, returning Fri, Nov 21, priced at $1,079 found 6 days ago

Alternative airports near Bengaluru

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kempegowda Intl. BLR. Cheapest and Closest option available. Average driving time to city center is 32 minutes. Flights from $1,125
BLR
Kempegowda Intl.
CheapestClosest
Average driving time to city center32 min
Flights from $1,125
Flights from St. Louis (STL) to Bengaluru (BLR)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Kempegowda Intl.
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Cathay Pacific, Delta, Japan Airlines, KLM, Lufthansa, Qatar Airways, Virgin Atlantic
Roundtrip price
$1,028
Distance
8765 mi

St. Louis to Bengaluru Flights

The cheapest times to fly from St. Louis to Bengaluru

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Bengaluru are during the month of January. You can find some of the cheapest flights from St. Louis to Bengaluru with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Bengaluru

Sunday is one of the best days to book for cheap flights from St. Louis to Bengaluru: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Bengaluru

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Bengaluru in 2025. You can also book with separate airlines for your outbound and return journeys, from $558 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Bengaluru flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Bengaluru airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR) cost?
Grab a cheap one-way flight from $558 or cheap return flight from $1,028 from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR)?
January is the most affordable month to fly from STL to BLR. Traveling outside of peak seasons is often the key to better flight prices.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to BLR flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR)?
You'll need to catch a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from STL to BLR?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR) last-minute?
Last-minute bookings from STL to BLR are generally more expensive. To lock in the lowest prices, start searching for flights ahead of time. That being said, if you're flexible with your travel dates, you may land a cheap fare right before your trip.
Is it cheaper to book a STL to BLR flight and hotel package?
You can save money by securing a STL to BLR flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your ideal flights and accommodations, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Kempegowda Intl. Airport (BLR)?
If you reserved your STL to BLR flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.