STL - KTM

$515 Find Cheap Flights from St. Louis to Kathmandu

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 Kathmandu departing on 3/23. 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 Kathmandu

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Kathmandu, 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 Kathmandu, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$1,428
Overall average: $1,487
Qatar Airways
Mon 3/23Mon 3/30
STL - KTM • 2 stops
Cheapest one-way
$591
Multiple Airlines
Mon 3/23
STL - KTM • 2 stops
Top airlines
Qatar Airways
Cheapest • from $1,377 (round-trip)
Qatar Airways
Best reviews • 7.4 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 Kathmandu. You'll need at least 2 connections.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 17% price drop
June
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 Kathmandu!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to Kathmandu (STL-KTM)

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

Mon, Mar 23 - Mon, Mar 30
Qatar Airways Logo
7:00 am - 4:25 pm
STL
-
KTM
46h 40m
2 stops
Qatar Airways Logo
6:00 pm - 11:58 pm
KTM
-
STL
40h 43m
2 stops
$1,428Qatar Airways
Mon, Apr 6 - Mon, Apr 13
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Qatar Airways Logo
6:15 pm - 10:24 pm
KTM
-
STL
38h 54m
2 stops
$1,441Qatar Airways
Tue, Mar 24 - Fri, Apr 24
Qatar Airways Logo
7:00 am - 5:50 pm
STL
-
KTM
48h 05m
2 stops
Qatar Airways Logo
10:55 am - 3:05 pm
KTM
-
STL
38h 55m
2 stops
$1,442Qatar Airways
Sun, Apr 5 - Sun, Apr 12
Multiple Airlines Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Multiple Airlines Logo
10:05 am - 12:48 pm
KTM
-
STL
37h 28m
2 stops
$1,451Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
7:00 am - 5:50 pm
STL
-
KTM
48h 05m
2 stops
Multiple Airlines Logo
9:10 am - 12:44 pm
KTM
-
STL
38h 19m
2 stops
$1,457Multiple Airlines
Tue, Apr 14 - Thu, May 7
Multiple Airlines Logo
3:50 pm - 5:00 pm
STL
-
KTM
62h 25m
2 stops
Multiple Airlines Logo
10:55 am - 5:21 pm
KTM
-
STL
41h 11m
2 stops
$1,466Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Qatar Airways Logo
12:25 pm - 4:45 pm
STL
-
KTM
41h 35m
2 stops
Qatar Airways Logo
6:15 pm - 10:24 pm
KTM
-
STL
38h 54m
2 stops
$1,486Qatar Airways
Thu, May 7 - Fri, May 29
Qatar Airways Logo
11:06 am - 7:55 am
STL
-
KTM
34h 04m
2 stops
Qatar Airways Logo
6:15 pm - 5:01 pm
KTM
-
STL
33h 31m
2 stops
$1,489Qatar Airways
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
5:30 pm - 4:25 pm
STL
-
KTM
60h 10m
2 stops
Multiple Airlines Logo
5:40 pm - 12:44 pm
KTM
-
STL
29h 49m
2 stops
$1,528Multiple Airlines
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
5:30 pm - 4:25 pm
STL
-
KTM
60h 10m
2 stops
Multiple Airlines Logo
5:40 pm - 12:44 pm
KTM
-
STL
29h 49m
2 stops
$1,549Multiple Airlines
Booking Insights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Kathmandu, 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 Kathmandu is February, where tickets cost $1,323 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $2,118 and $1,932 respectively.

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

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 Kathmandu, 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 Kathmandu, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$591
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from St. Louis to Kathmandu

When to book flights from St. Louis to Kathmandu

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

  • What are the layover options between St Louis and Kathmandu?

    Due to the long nature of this flight, there are multiple cities and airports where you can have your layover. For most flights with two tops, the first layover is in the United States, mostly Boston, Chicago, and New York, while the other layover is either in Doha or Istanbul, depending on if you are flying with Turkish Airlines or Qatar Airways.

  • Do I need a visa to fly to Kathmandu?

    Yes, a visa is one of the requirements by immigration officials for US citizens to be allowed past customs. You can apply for the visa online before traveling or at the airport. Other mandatory documents include your original passport, which should have six months of validity remaining at the time of entry, and a blank visa page.

  • Which is the most convenient mode of transport from Kathmandu Airport (KTM)?

    If by convenience you mean ease of access, reliability, and comfort, taxis are the best way to get from the airport to the city center. While there are buses that run from Tribhuvan International Airport, this is not an ideal way to get from the airport. The buses are often crowded and run infrequently, therefore cannot be relied on. Instead, you’re better off getting a taxi from the arrivals hall.

  • Does St Louis Lambert International Airport have any lounges?

    Yes, the airport has four lounges where travelers can stay while waiting to board their flights. The American Airlines Admirals Club is the only airline-affiliated lounge at the airport and is located in Terminal 1 near Gate C between Concourses B and C. The Wingtips lounge is located near Gate E22 in Terminal 2, and the USO Lounge has two locations: lower level Terminal 1 and the Baggage Claim area in Terminal 2.

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

    In the last 3 days, the lowest price for a flight from St. Louis to Kathmandu was $591 for a one-way ticket and $1,377 for a round-trip.

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

    Yes, you’ll need a passport to travel to Kathmandu from St. Louis.

  • Which airports will I be using when flying from St. Louis to Kathmandu?

    On your way to Kathmandu, you’ll fly out from Lambert-St Louis. You’ll be landing at Kathmandu Tribhuvan.

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

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

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

    oneworld is the only airline alliance operating flights between St. Louis and Kathmandu.

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

    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 Kathmandu.

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

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

    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 Kathmandu with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and KTM 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 Kathmandu?

    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 Kathmandu from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Kathmandu

  • If you plan to leave your car at St. Louis-Lambert International Airport (STL), consider using the offsite parking lots or at least compare the prices charged by airport parking to those charged by the offsite parking lots. You could end up paying up to 50% less when using airport parking.
  • You can find the Information Desk at STL near the baggage claim area in Terminal 1. If you’re in Terminal 2, you can still reach the Information Booth via the courtesy phones located in the baggage claim area or at Gate E10.
  • When booking connecting flights, please avoid those with a red hazard icon where the number of stops is indicated. The red hazard indicates that that particular flight is self-transfer; therefore, the onus is on you to ensure that you check yourself and your luggage into each flight.
  • STL has a play area called the St. Louis International Play Port, where you can bring the children to have fun and burn any reserve energy off before boarding your flight. It is located in Concourse C near Gate C3.
  • It is worth mentioning that there aren’t any direct flights from St Louis to Kathmandu. There are also no flights with one stop, and the quickest flight you can get on this route involves at least two stops. It is, therefore, important that you know this and prepares accordingly for long layovers.

Reviews of the top airline flying from St. Louis to Kathmandu

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Kathmandu. 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 Kathmandu? 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 3740 reviews
7.3Food
7.5Boarding
7.9Crew
7.4Comfort
7.4Entertainment
Airline reviews

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

4.0 OkayAnonymous, Feb 2026
MIA - DOH
Read more Qatar Airways reviews

Extremely uncomfortable seats with very little cushioning, unable to recline enough to sleep comfortably on this 13 hour overnight flight. My body was in pain by the end.

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!!

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

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

Information on your arrival and departure airports