STL - BLR

$763 Find Cheap Flights from St. Louis to Bengaluru

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 8/8. 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

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
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Flights 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

Tue, Oct 21 - Sat, Nov 15
Qatar Airways Logo
8:42 am - 2:30 amSTL-BLR
31h 18m2 stops
Qatar Airways Logo
3:50 am - 7:27 pmBLR-STL
27h 07m2 stops
$1,077Qatar Airways
Find Deal
Sat, Sep 13 - Fri, Sep 19
Qatar Airways Logo
9:56 am - 2:35 amSTL-BLR
30h 09m2 stops
Qatar Airways Logo
3:50 am - 8:32 pmBLR-STL
27h 12m2 stops
$1,117Qatar Airways
Find Deal
Sat, Oct 18 - Tue, Nov 18
Delta Logo
1:35 pm - 3:20 amSTL-BLR
27h 15m2 stops
Delta Logo
5:00 am - 11:55 amBLR-STL
42h 25m2 stops
$1,234Delta
Find Deal
Sun, Oct 19 - Mon, Nov 17
Delta Logo
6:00 am - 3:20 amSTL-BLR
34h 50m2 stops
Delta Logo
2:30 am - 8:35 pmBLR-STL
29h 35m2 stops
$1,235Delta
Find Deal
Sat, Sep 13 - Sat, Sep 20
 Logo
4:05 pm - 1:20 amSTL-BLR
46h 45m2 stops
 Logo
10:00 pm - 3:18 pmBLR-STL
51h 48m2 stops
$1,240
Find Deal
Thu, Nov 20 - Fri, Nov 28
Air Canada Logo
4:05 pm - 1:50 amSTL-BLR
22h 15m2 stops
Air Canada Logo
2:50 am - 3:29 pmBLR-STL
48h 09m2 stops
$1,278Air Canada
Find Deal
Mon, Oct 20 - Sat, Nov 15
Lufthansa Logo
12:25 pm - 12:30 amSTL-BLR
25h 35m2 stops
Lufthansa Logo
3:30 am - 1:55 pmBLR-STL
21h 55m1 stop
$1,308Lufthansa
Find Deal
Wed, Oct 22 - Sat, Nov 15
Lufthansa Logo
12:25 pm - 12:30 amSTL-BLR
25h 35m2 stops
Lufthansa Logo
3:30 am - 1:55 pmBLR-STL
21h 55m1 stop
$1,311Lufthansa
Find Deal
Sun, Oct 19 - Sat, Nov 15
Air Canada Logo
4:05 pm - 12:30 amSTL-BLR
45h 55m2 stops
Air Canada Logo
2:50 am - 3:29 pmBLR-STL
48h 09m2 stops
$1,337Air Canada
Find Deal
Tue, Oct 21 - Sun, Nov 16
 Logo
4:05 pm - 1:20 amSTL-BLR
22h 45m2 stops
 Logo
8:25 pm - 3:29 pmBLR-STL
54h 34m3 stops
$1,359
Find Deal
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’s the cheapest day of the week to fly from St. Louis to Bengaluru (Bangalore)?

The average price of all round-trip flights from St. Louis to Bengaluru clicked on KAYAK for each day over the last 12 months.

For St. Louis to Bengaluru (Bangalore), Thursday is the cheapest day to fly on average and Friday is the most expensive. Flying from Bengaluru (Bangalore) back to St. Louis, the best deals are generally found on Friday, with Sunday being the most expensive.

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 February, where tickets cost $1,167 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $1,782 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 5 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$763
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 13% 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 $763 for a one-way ticket and $1,077 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)?

    Star Alliance, oneworld, and SkyTeam 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, Delta or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from St. Louis to Bengaluru are Delta and Qatar Airways. With an average price for the route of $1,420 and an overall rating of 8.0, Delta is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of $1,274 and an overall rating of 7.4.

  • 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 5 airlines serving 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.
8.3
Japan AirlinesOverall score based on 1536 reviews
8.2Comfort
8.7Crew
8.4Boarding
7.8Entertainment
7.7Food
Airline reviews

highly recommend for trip to japan only reason why i gave good not excellent is because their selection of movies and tv shows in English is more limited .

10.0 ExcellentMIKE, Jul 2025LAX - NRT
Read more Japan Airlines reviews

highly recommend for trip to japan only reason why i gave good not excellent is because their selection of movies and tv shows in English is more limited .

I avoid American Airlines for a reason. Our flight was delayed at LAX. The situation at the gate was chaotic. The woman making announcements wasn't being clear or transparent regarding why there were delays. There was a lot of confusion regarding flight and gate status. Other passengers were pretty rude. I was elbowed in the eye by someone who was in a hurry to get their bags from the overhead bin immediately after the flight landed. Ultimately, I will avoid AA as much as possible in the future.

My wife had vegetarian meal and food was meh. Needed to have a but more flavors instead of it being just boiled vegetables.

Overall a great experience. One complain was the vegetarian food that my wife had which was mostly boiled vegetables with not much flavor.

We booked business class round trip from Delhi to San Diego and back. On our last leg from Bangalore to Delhi we were down graded to economy class which was big disappointment other than that everything was great.

Had an incident with a stewardess who insisted that I take a seat. I informed her that I came to use the restroom and to have some water. After using the restroom, I wanted to stretch my legs out a little cuz my knees were aching from sitting. I understood her concern for my concern and the potential turbulence (she said she knows this route and the turbulence and safety is not to be taken lightly) but I felt that her mood, tone, demeanor, and a lack of compassion for the pain in my knees were not the proper way to address a customer or anyone for that matter. This left a bitter taste in my mouth. It was her lack of professionalism that surprised me.

It was good but need mor amenities for toiletries and entertainment

for a such long and tiresome flight with halt of 10 hrs. during night Indigo should provide night stay arrangeement to such transit passengers we both are senior citizens of nealy 75 with some diability. any responsible air line should provide such arrangements.

This portion of the trip from HCMC to Dallas was operated by American Airline. Unfortunately they are 2 steps below JAL in overall quality. Regardless, AAStill got me where I needed to go on time.

First experience with JAL so was okay to pretty good. 10 hour flight in premium select seat. . Seats in that category should be better than pretty good. Seat pan a little short for tall people but plenty of leg room; I think JAL in process of new planes? Also, — they could have offered a bit more water throughout flight and meals not the greatest. That said, certainly 200 percent better than a very recent AK Air International flight in similar cabin class in comfort and meals.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Only issue was with seating. The economy fare we purchased did say there was no guarantee the three people in our party would be seated together, and we were not. At the gate, the agent told us more specifically, the fare we purchased meant we would be seated in middle seats only. This should just be made more obvious.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

The flight was smooth Thank God but the delays and changing gates for 3-4 times made me so tired of walking back and forth with heavy bags I thought I was going to pass out with heavy headaches but Thank God finally found the final gate and home safe. These delays happen anytime for important reasons so just be patient when you come across these situations.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

All the crew members were too slow and rude. Most of the times the registers were empty, while hundreds of customers were waiting in line, and it was impossible to get a supervisor. Despite being in line on time, I missed my freight, plus a some customers who were ahead and behind me.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Our flight was delayed for over an hour due to weather, and it had already been a long travel day. However, the crew was calm and compassionate, listening to every complaint with genuine concern. They got us home safely without incident, in spite of all of the obstacles. I’m grateful.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

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