STL - DEL

$425 Find Cheap Flights from St. Louis to New Delhi

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 New Delhi departing on 9/28. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to New Delhi.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to New Delhi.
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Flight Deals

Cheap Flights from St. Louis to New Delhi (STL-DEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to New Delhi 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 New Delhi

Fri, Sep 12 - Sat, Oct 4
American Airlines Logo
7:23 am - 9:00 pmSTL-DEL
27h 07m2 stops
American Airlines Logo
11:30 pm - 7:20 pmDEL-STL
30h 20m2 stops
$787American Airlines
Find Deal
Sat, Sep 13 - Sun, Sep 28
American Airlines Logo
7:01 am - 9:00 pmSTL-DEL
27h 29m2 stops
American Airlines Logo
11:30 pm - 4:15 pmDEL-STL
27h 15m2 stops
$788American Airlines
Find Deal
Wed, Sep 10 - Fri, Sep 26
United Airlines Logo
9:00 am - 9:30 pmSTL-DEL
26h 00m2 stops
United Airlines Logo
12:05 am - 7:57 pmDEL-STL
30h 22m1 stop
$804United Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 26
United Airlines Logo
6:15 am - 9:30 pmSTL-DEL
28h 45m2 stops
United Airlines Logo
12:05 am - 7:57 pmDEL-STL
30h 22m1 stop
$810United Airlines
Find Deal
Wed, Oct 8 - Thu, Oct 16
Lufthansa Logo
12:25 pm - 11:55 pmSTL-DEL
25h 00m2 stops
Lufthansa Logo
2:55 am - 1:30 pmDEL-STL
21h 05m1 stop
$874Lufthansa
Find Deal
Wed, Oct 8 - Wed, Oct 15
Lufthansa Logo
12:25 pm - 11:55 pmSTL-DEL
25h 00m2 stops
Lufthansa Logo
2:55 am - 3:44 pmDEL-STL
23h 19m2 stops
$884Lufthansa
Find Deal
Sun, Sep 7 - Sun, Sep 21
Delta Logo
1:26 pm - 12:05 amSTL-DEL
24h 09m2 stops
Delta Logo
2:05 am - 11:24 pmDEL-STL
31h 49m2 stops
$1,013Delta
Find Deal
Sun, Sep 7 - Sat, Sep 27
Delta Logo
1:26 pm - 12:05 amSTL-DEL
24h 09m2 stops
Delta Logo
11:15 am - 4:48 pmDEL-STL
40h 03m2 stops
$1,019Delta
Find Deal
Sat, Sep 13 - Sun, Sep 21
Air Canada Logo
9:15 am - 11:35 pmSTL-DEL
27h 50m2 stops
Air Canada Logo
12:05 am - 7:57 pmDEL-STL
30h 22m1 stop
$1,031Air Canada
Find Deal
Sat, Sep 13 - Sun, Sep 21
Air Canada Logo
9:15 am - 11:35 pmSTL-DEL
27h 50m2 stops
Air Canada Logo
12:05 am - 7:38 pmDEL-STL
30h 03m2 stops
$1,038Air Canada
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from St. Louis to New Delhi 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 New Delhi?

What’s the cheapest day of the week to fly from St. Louis to New Delhi?

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

When flying from St. Louis to New Delhi, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Mondays and the most expensive ones on Saturdays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to New Delhi, 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 New Delhi is April, where tickets cost $1,024 (return) on average. On the other hand, the most expensive months are December and August, where the average cost of round-trip tickets is $1,881 and $1,515 respectively.

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

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 New Delhi, 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 New Delhi, you should book around 2 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$425
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from St. Louis to New Delhi

When to book flights from St. Louis to New Delhi

Are your dates flexible? Find out the best times to travel from St. Louis to New Delhi 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 New Delhi

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

    In the last 3 days, the lowest price for a flight from St. Louis to New Delhi was $425 for a one-way ticket and $787 for a round-trip.

  • Do I need a passport to fly between St. Louis and New Delhi?

    Yes

  • Which aircraft models fly most regularly from St. Louis to New Delhi?

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

  • Which airline alliances offer flights from St. Louis to New Delhi?

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

  • Which is the best airline for flights from St. Louis to New Delhi, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from St. Louis to New Delhi are Delta and KLM. With an average price for the route of $1,289 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $1,259 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from St. Louis to New Delhi?

    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 New Delhi.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to New Delhi 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 New Delhi?

    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 New Delhi with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and DEL 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 New Delhi?

    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 New Delhi 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 New Delhi

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to New Delhi. 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 New Delhi? 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.
7.9
DeltaOverall score based on 7979 reviews
8.2Boarding
7.9Comfort
7.9Entertainment
8.5Crew
7.3Food
Airline reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

4.0 Okaypuravi, Aug 2025LGA - STL
Read more Delta reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

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!

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

It is clear that someone knew, and competent, is in charge of food at United Airlines at least for the international flights. I was flying in coach, but the choices of the dinner were excellent. Tasty, and appropriate size. I had the beef, which was a little bit like a shepherds pie, and it was good. Nothing comparable has been served on a United flight in years. It will not be confused with three star food, but it is very good for airline food. Even better was the breakfast choice between a cinnamon roll and a breakfast sandwich. I chose the breakfast sandwich which was absolutely delicious and which I would happily order again at my local Starbucks or Panera. It is clear that someone knew indifferent is in charge of the food and it’s about time.

The flight was canceled 3 hours after original take off time

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

The AA staff person who checked our bags was curt and almost rude. The FA also seemed unhappy doing her job. Overall it was like riding the school bus back in grade school.

Internet was a bit expensive and did not work ask that week otherwise a good flight

Ring in first class for an overnight flight, there was no blankets nor pillows for first class customers.

My Internet did not work for Outlook email or basically anything. I paid for one hour of in-flight usage and it was terrible. I spent a lot of time on different sites and browsers with no luck and a lot of frustration. Other than that, the flight was on time, crew was nice, service was fine. Seat was OK even though I paid for the extra 6 inches. I cannot imagine how tight the seats in the back must be.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

Flight was late arriving. So, we left 25 min late. Pilot made some time up during the flight. Therefore, we arrived alittle past original time.

Food is too little (in volume) and too spicy.. There are no snacks in the back of the plane in between meals.

The seat I was stuck in was so unimaginably uncomfortable. I have never had that tight of a seat in my 20 years of flying. Even budget airlines give you more space.

We were upgraded to economy plus and everything was awesome!

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