STL - BLR

$972 Find Cheap Flights from St. Louis to Bengaluru

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Bengaluru departing on 5/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Bengaluru

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bengaluru, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Bengaluru, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$972
Overall average: $1,550
Lufthansa
Wed 5/13Thu 5/28
STL - BLR • 1 stop
Cheapest one-way
Multiple Airlines
Wed 2/4
STL - BLR • multi-stop
Top airlines
Lufthansa
Cheapest • from $972 (round-trip)
Qatar Airways
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 16% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Bengaluru!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Bengaluru that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Bengaluru

Wed, May 13 - Thu, May 28
Lufthansa Logo
3:30 pm - 1:20 am
STL
-
BLR
23h 20m
1 stop
Lufthansa Logo
2:10 am - 12:06 pm
BLR
-
STL
44h 26m
2 stops
$972Lufthansa
Wed, May 13 - Sat, May 30
Lufthansa Logo
3:30 pm - 1:20 am
STL
-
BLR
23h 20m
1 stop
Lufthansa Logo
9:30 pm - 1:25 pm
BLR
-
STL
26h 25m
2 stops
$973Lufthansa
Thu, May 14 - Thu, May 28
Lufthansa Logo
1:00 pm - 12:30 am
STL
-
BLR
25h 00m
2 stops
Lufthansa Logo
2:10 am - 8:04 pm
BLR
-
STL
28h 24m
2 stops
$976Lufthansa
Thu, May 14 - Sat, May 30
Multiple Airlines Logo
1:00 pm - 12:30 am
STL
-
BLR
25h 00m
2 stops
Multiple Airlines Logo
9:30 pm - 1:25 pm
BLR
-
STL
26h 25m
2 stops
$978Multiple Airlines
Sat, May 16 - Sat, May 30
Lufthansa Logo
7:30 am - 12:30 am
STL
-
BLR
30h 30m
2 stops
Lufthansa Logo
3:00 am - 1:25 pm
BLR
-
STL
20h 55m
1 stop
$983Lufthansa
Wed, May 13 - Wed, May 27
Air Canada Logo
1:00 pm - 12:30 am
STL
-
BLR
25h 00m
2 stops
Air Canada Logo
3:00 am - 8:04 pm
BLR
-
STL
27h 34m
2 stops
$993Air Canada
Fri, Feb 20 - Sun, Mar 8
Lufthansa Logo
6:45 pm - 1:05 am
STL
-
BLR
42h 50m
2 stops
Lufthansa Logo
2:50 am - 10:59 pm
BLR
-
STL
30h 39m
2 stops
$997Lufthansa
Sat, May 16 - Wed, May 27
Air Canada Logo
7:30 am - 12:30 am
STL
-
BLR
30h 30m
2 stops
Air Canada Logo
3:00 am - 8:04 pm
BLR
-
STL
27h 34m
2 stops
$998Air Canada
Tue, May 12 - Thu, May 28
Air Canada Logo
1:00 pm - 1:20 am
STL
-
BLR
49h 50m
2 stops
Air Canada Logo
2:10 am - 8:05 pm
BLR
-
STL
52h 25m
2 stops
$999Air Canada
Fri, May 15 - Thu, May 28
Air Canada Logo
7:30 am - 1:20 am
STL
-
BLR
31h 20m
2 stops
Air Canada Logo
2:10 am - 8:05 pm
BLR
-
STL
52h 25m
2 stops
$1,004Air Canada
Booking Insights

KAYAK's insights & trends for St. Louis to Bengaluru flights

Get data-powered insights and trends into flights from St. Louis to Bengaluru to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from St. Louis to Bengaluru?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Bengaluru, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Bengaluru is January, where tickets cost $1,161 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $1,615 and $1,602 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Bengaluru, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Bengaluru, you should book around 4 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$972
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 12% increase in price.
Flight from St. Louis to Bengaluru (Bangalore)

When to book flights from St. Louis to Bengaluru

Are your dates flexible? Find out the best times to travel from St. Louis to Bengaluru based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Bengaluru (Bangalore)

  • What is the cheapest flight from St. Louis to Bengaluru?

    In the last 3 days, the lowest price for a flight from St. Louis to Bengaluru was $972 for a round-trip ticket.

  • Do I need a passport to fly between St. Louis and Bengaluru (Bangalore)?

    A passport is required to fly from St. Louis to Bengaluru (Bangalore).

  • Which airports will I be using when flying from St. Louis to Bengaluru (Bangalore)?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Bengaluru (Bangalore), also known as Bengaluru Intl.

  • Which aircraft models fly most regularly from St. Louis to Bengaluru (Bangalore)?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Bengaluru (Bangalore)?

    oneworld, and Star Alliance are the airline alliances operating flights between St. Louis and Bengaluru (Bangalore), with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Bengaluru, Qatar Airways or Lufthansa?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bengaluru are Qatar Airways and Lufthansa. With an average price for the route of $1,263 and an overall rating of 7.4, Qatar Airways is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,549 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from St. Louis to Bengaluru (Bangalore)?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Bengaluru (Bangalore).

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Bengaluru (Bangalore)?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bengaluru (Bangalore) from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Bengaluru (Bangalore)?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bengaluru (Bangalore) with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and BLR can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Bengaluru (Bangalore)?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bengaluru (Bangalore) from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from St. Louis to Bengaluru

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Bengaluru. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Bengaluru? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3729 reviews
7.9Crew
7.4Entertainment
7.4Comfort
7.3Food
7.5Boarding
Airline reviews

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

6.0 GoodAnonymous, Jan 2026
BOS - PHL
Read more Qatar Airways reviews

When we checked in at the Siem Reap Airport in Cambodia, we were only given three boarding passes and told that we would have to check in with American when we arrived in Boston. This was a source of stress for us. After we landed in Boston, we had a long passage from Terminal E to Terminal B (American Airline ticketing counter). Because the electronic ticketing kiosks for check-in would not recognize our Confirmation Code, we had to wait for an hour in a long line where only two AA reps were taking care of Special Services passengers. In many years of both business and recreational travel, I have never had this experience. I would expect more from AA being in partnership with other airlines to do a better job with this.

Our experience on the Doha to Hyderabad segment was extremely stressful due to prolonged delays and a lack of clear communication from the airline. We were traveling as a family, including children, and the uncertainty around timing and next steps caused significant distress. There was very little proactive information provided during the delay, and we were not given clear written explanations about what was happening or how long it might take. This made it difficult to manage the situation, especially while caring for children in a transit environment. In addition, one member of our party was ultimately unable to continue travel, which added to the emotional strain and disruption of the trip. Overall, the experience highlighted gaps in communication, customer care, and handling of unexpected situations. We are sharing this feedback so that future passengers, especially families, are supported with clearer communication and better assistance during irregular operations.

The seat cushions are absolutely lacking, not sure if they know the passengers are traveling for 14 hours straight, but the padding made our back and butt ache like crazy. The entertainment console had its own problems, either the headphone jack wasn't working or the power outlet via usb or ac outlet was not working. Not to mention the seat handles were not adjustable in some planes in the middle or on the aisle. Qatar/Indigo may be operating a very old fleet of planes to make as much profit as possible, but passengers may not be following them for long, should this treatment of its customers continue. Qatar/Indigo, wake up and do it right by your customers, or they may not be your customers anymore.

It would help id flight crew were not rude and showed some courtesy. They were shouting at passengers and yelling instructions as if we were school children at lunch cafeteria!!

Looks like a local flight. Food was horrible. No entertainment system.

All good. Over four hours flight if provided snacks like Qatar Airways would be better

Lobster starter in business class was not good, tough, served cold, and without butter. Movie selection was missing latest releases, did not offer older classic, high quality movies

Food was absolutely pathetic. I wasted so much food which I thought was inedible. I also loathe the inflight entertainment system which has very little content

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

Boarding was by group and we had to take the bus. There were no elevators so had to walk down the stairs. It would help to have escalators or elevators. Note I had a special needs child and the gate crew was rushing us in. The bus was full but we were packed with no seats to sit.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

The food from Delhi to Frankfurt went bad or something cause I got sick after I ate the meal and felt ill the rest of my travel back to NY

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Everything was on time, even though the layover in Frankfurt was 22hrs

Late flight Delays Poor service Poor staff Worst airline ever

Everything you need to know for your flight from St. Louis to Bengaluru

Information on your arrival and departure airports