STL - BLR

$586 Find Cheap Flights from St. Louis to Bengaluru (Bangalore) - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Bengaluru departing on 7/27. 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 (Bangalore)

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

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$1,130
Typical prices: $1,100-$1,414
Multiple Airlines
Mon 9/7Wed 9/23
STL - BLR • 2 stops
Cheapest one-way
$586
Typical prices: $544-$784
Multiple Airlines
Mon 7/27
STL - BLR • 3 stops
Top airlines
Cheapest • from $1,239 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Bengaluru. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,477 (round-trip)
Shortest trip • 20h 27m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
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

Mon, Sep 7 - Wed, Sep 23
Multiple Airlines Logo
8:34 am - 3:15 am
STL
-
BLR
32h 11m
2 stops
Multiple Airlines Logo
10:15 pm - 9:25 pm
BLR
-
STL
33h 40m
2 stops
$1,130Multiple Airlines
Sun, Aug 16 - Sun, Nov 1
Multiple Airlines Logo
9:21 am - 3:15 am
STL
-
BLR
31h 24m
2 stops
Multiple Airlines Logo
10:00 pm - 4:18 pm
BLR
-
STL
29h 48m
2 stops
$1,190Multiple Airlines
Fri, Oct 30 - Sun, Dec 20
Multiple Airlines Logo
6:03 am - 3:00 am
STL
-
BLR
34h 27m
2 stops
Multiple Airlines Logo
10:00 am - 9:08 pm
BLR
-
STL
46h 38m
2 stops
$1,232Multiple Airlines
Tue, Aug 4 - Thu, Aug 20
Virgin Atlantic Logo
2:10 pm - 6:10 am
STL
-
BLR
29h 30m
2 stops
Virgin Atlantic Logo
2:50 pm - 5:53 pm
BLR
-
STL
37h 33m
2 stops
$1,239Virgin Atlantic
Sun, Oct 18 - Thu, Nov 12
Qatar Airways Logo
1:00 pm - 2:30 am
STL
-
BLR
27h 00m
2 stops
Qatar Airways Logo
3:50 am - 8:55 pm
BLR
-
STL
28h 35m
2 stops
$1,245Qatar Airways
Mon, Sep 7 - Tue, Sep 22
Lufthansa Logo
12:59 pm - 12:30 am
STL
-
BLR
25h 01m
2 stops
Lufthansa Logo
3:00 am - 1:25 pm
BLR
-
STL
20h 55m
1 stop
$1,284Lufthansa
Sun, Oct 18 - Fri, Nov 13
Qatar Airways Logo
6:20 am - 2:30 am
STL
-
BLR
33h 40m
2 stops
Qatar Airways Logo
3:50 am - 7:27 pm
BLR
-
STL
27h 07m
2 stops
$1,285Qatar Airways
Mon, Sep 7 - Tue, Sep 22
Lufthansa Logo
3:30 pm - 1:20 am
STL
-
BLR
23h 20m
1 stop
Lufthansa Logo
3:00 am - 1:25 pm
BLR
-
STL
20h 55m
1 stop
$1,287Lufthansa
Thu, Oct 15 - Thu, Nov 12
Qatar Airways Logo
10:14 am - 8:55 am
STL
-
BLR
36h 11m
2 stops
Qatar Airways Logo
3:15 am - 7:30 pm
BLR
-
STL
27h 45m
2 stops
$1,316Qatar Airways
Fri, Oct 16 - Fri, Nov 13
Qatar Airways Logo
6:51 pm - 8:55 am
STL
-
BLR
27h 34m
2 stops
Qatar Airways Logo
3:50 am - 8:55 pm
BLR
-
STL
28h 35m
2 stops
$1,325Qatar Airways
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.

How much is a round-trip flight from St. Louis to Bengaluru?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Bengaluru departing in September.

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

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 (Bangalore) is April, where tickets cost $1,040 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $2,398 and $1,891 respectively.

Good to know

Low seasonMarch
Cheapest flight$586
Best time to beat the crowds but there is an average 59% increase in price.
Most popular time to fly with an average 16% 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 (Bangalore)?

    In the last 5 days, the lowest price for a flight from St. Louis to Bengaluru (Bangalore) was $586 for a one-way ticket and $1,130 for a round-trip.

  • 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)?

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

  • Which is the best airline for flights from St. Louis to Bengaluru (Bangalore), Delta or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bengaluru (Bangalore) are Delta and Qatar Airways. With an average price for the route of $1,767 and an overall rating of 7.8, Delta is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of $1,205 and an overall rating of 7.3.

  • 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 3 airlines serving from St. Louis to Bengaluru

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Bengaluru (Bangalore). 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.
7.8
DeltaOverall score based on 8455 reviews
7.8Entertainment
8.5Crew
7.2Food
8.1Boarding
7.8Comfort
Airline reviews

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

10.0 ExcellentPaula, Jun 2026
STL - ATL
Read more Delta reviews

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

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

Economy travel is really hard with no room to move especially when the person sitting beside you is an XL or XXL size person who if moving could hit your face

I purchased Qatar airways after seeing ads about its service. To my surprise Qatar is marketing gimmick and horrible airlines which I don’t recommend to anyone Flight was dirty including flight from Miami to Doha And Doha airport restrooms are dirty On top of this they use this pathetic cheap indigo From Doha to Hyderabad which I will never fly Also they lost one of my baggage in Indigo and still waiting to receive it. I will never travel Qatar and will never recommend

Aircraft was spacious compared to American Airlines, food was great, entertainment was much better with a wide variety of options, and the crew was very polite.

The overall flight experience between Doha and Kolkata was satisfactory. The staff onboard were notably engaged, responsive, and enthusiastic, providing a level of service that stood out, especially when compared to the less attentive crew on the earlier leg from Heathrow to Doha. Their eagerness to assist made the journey more pleasant. Additionally, the time spent at the Silver Lounge in Doha contributed positively to the experience. The lounge offered a comfortable and relaxing environment, with adequate amenities and attentive staff. Overall, both the flight and the lounge experience in Doha met expectations, making for a smooth and satisfactory travel experience.

Being a platinum member, no attention given. No towel or tissue provided.

No towels or tissue and chocolate and mint provided before arrival

They made us deliberate waste time by holding our passports and boarding passes making us miss the flight

I had never seen any cabin crews behaving like that. They are not at all professionally fit for this job

Qatar screwed up by delaying our onward journey for refueling, which resulted in missing our connecting flight to India. the airport qater staff at Doha, herded us like cattle in a very incohesive and uncoordinated way. We were then given 2 options: either catch our original flight the Next day ( After 24.hrs) or catch 2 flights instead , to goto our destination in India. All this, for paying a premium for Qatar.

Fortunately the departure was delayed as I had a tight connection and the incoming flight was delayed. The departure delay helped me to make my connection. Thankfully, my luggage also could be transferred in the same time. The aircraft had to be changed and the power outlet in my seat didn’t work. Again luckily as the flight was not full, I could move to a different seat where the power outlet was working.

The entertainment is pretty boring. There are no new movies or TV shows from February. The food is just ok on the Atlanta to Frankfurt leg, but better on the Fra to Bengaluru leg.

Charging for reserving a seat is really cheap. The seats in economy are very small especially when the passenger directly in front reclines their seat. On long flights they should have coffee/tea and juices available for passengers. Here we have to bother the crew. Other airlines just put drinks and snacks in the back for the passengers.

This is the worst part of the journey. The Lufthansa flight was delayed, and I missed the connecting flight. Lufthansa staff have not been helpful in rebooking the subsequent flight with Air India (another airline that is part of the Star Alliance). Lufthansa told me it's not their responsibility, and Air India says the PNR is part of Lufthansa, so they are not responsible for rebooking. Lufthansa customer service asked me to contact the counter at Delhi airport, but no one was available there. I am caught between these two airlines, and ultimately, Air India decided to reschedule my flight after 18 hours. I am stranded at Delhi airport. I can't go out because if I do, I can't come back in, and I can't get past security to get food. My 3-year-old and I are stranded here for 12 hours without food and water.

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

Food could have tasted better and had more options - they ran out of vegetarian options. Considering this was business class, I don’t think that’s acceptable.

You should change everything like maintaining cleanliness ,food is very bad and staff doesn’t care their passengers and there was no water in the washroom whole flight and lastly entertainment is very bad headphones won’t work as well. So basically you should change everything in your flight. I think l’m not going to travel in Lufthansa anymore. Very bad experience

Worst baggage handling system. Our bags were delayed and multiple calls to customer service agents didn't help. The customer service is really poor and do not provide any update. The airport ground staff also are not helpful in terms of providing right information. False information was provided that the bag has not reached SFO.

The The check in process was terrible on both ends. It was not clear if we should use the United, Lufthansa, or Aragrant number. It took over an hour to check in on the front end – and then at return the Lufthansa online check in failed multiple times and only after two calls to their phone number could we accomplish the task. The link to the Kayak site provided no access for check in. This difficulty and ambiguity on both ends will affect our interest in using Kayak for foreign travel in the future.

Lufthansa keep delaying flights, my 26 hour journey became a 46 hr. No empathy from service desk just take it or leave it attitude

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

Information on your arrival and departure airports