STL - KTM

$812 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 10/19. 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
$1,290
Typical prices: $1,561-$1,450
Qatar Airways
Tue 10/20Wed 10/28
STL - KTM • 2 stops
Cheapest one-way
$812
Qatar Airways
Mon 10/19
STL - KTM • 2 stops
Top airlines
Cheapest • from $1,290 (round-trip)
Best reviews • 7.6 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
Cheapest • 13% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Tue, Oct 20 - Wed, Oct 28
Qatar Airways Logo
7:00 am - 9:50 am
STL
-
KTM
40h 05m
2 stops
Qatar Airways Logo
9:35 am - 11:59 pm
KTM
-
STL
49h 09m
2 stops
$1,290Qatar Airways
Tue, Oct 20 - Wed, Oct 28
Qatar Airways Logo
7:00 am - 9:50 am
STL
-
KTM
40h 05m
2 stops
Qatar Airways Logo
9:35 am - 11:59 pm
KTM
-
STL
49h 09m
2 stops
$1,309Qatar Airways
Mon, Jul 13 - Thu, Aug 20
Multiple Airlines Logo
6:02 am - 8:50 am
STL
-
KTM
40h 03m
2 stops
Multiple Airlines Logo
6:00 pm - 6:14 pm
KTM
-
STL
34h 59m
2 stops
$1,449Multiple Airlines
Sun, Jul 12 - Wed, Aug 19
Multiple Airlines Logo
6:02 am - 9:50 am
STL
-
KTM
41h 03m
2 stops
Multiple Airlines Logo
6:00 pm - 2:45 pm
KTM
-
STL
31h 30m
2 stops
$1,462Multiple Airlines
Mon, Jul 13 - Mon, Jul 20
Qatar Airways Logo
7:22 pm - 8:50 am
STL
-
KTM
26h 43m
2 stops
Qatar Airways Logo
10:05 am - 4:28 pm
KTM
-
STL
41h 08m
2 stops
$1,498Qatar Airways
Tue, Jul 14 - Wed, Aug 19
Qatar Airways Logo
1:25 pm - 9:50 am
STL
-
KTM
33h 40m
2 stops
Qatar Airways Logo
6:00 pm - 2:45 pm
KTM
-
STL
31h 30m
2 stops
$1,533Qatar Airways
Sat, Oct 24 - Thu, Nov 5
Qatar Airways Logo
6:00 am - 4:25 pm
STL
-
KTM
47h 40m
2 stops
Qatar Airways Logo
6:45 pm - 11:56 pm
KTM
-
STL
40h 56m
2 stops
$1,543Qatar Airways
Sat, Oct 24 - Thu, Nov 5
Qatar Airways Logo
6:00 am - 4:25 pm
STL
-
KTM
47h 40m
2 stops
Qatar Airways Logo
6:45 pm - 11:56 pm
KTM
-
STL
40h 56m
2 stops
$1,546Qatar Airways
Mon, Sep 28 - Sat, Oct 17
Qatar Airways Logo
6:00 am - 4:45 pm
STL
-
KTM
48h 00m
2 stops
Qatar Airways Logo
6:45 pm - 11:59 pm
KTM
-
STL
39h 59m
2 stops
$1,570Qatar Airways
Sun, Aug 23 - Sat, Aug 29
Qatar Airways Logo
6:53 pm - 9:50 am
STL
-
KTM
28h 12m
2 stops
Qatar Airways Logo
6:00 pm - 2:45 pm
KTM
-
STL
31h 30m
2 stops
$1,604Qatar Airways
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.

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

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 Kathmandu departing in October.

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 $1,393 (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 3 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$812
Best time to beat the crowds with an average 8% 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 5 days, the lowest price for a flight from St. Louis to Kathmandu was $812 for a one-way ticket and $1,290 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.

  • Which is the best airline for flights from St. Louis to Kathmandu, Cathay Pacific or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from St. Louis to Kathmandu are Cathay Pacific and Qatar Airways. With an average price for the route of $1,783 and an overall rating of 7.6, Cathay Pacific is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of $1,541 and an overall rating of 7.4.

  • 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 airlines 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.
7.6
Cathay PacificOverall score based on 1354 reviews
7.6Comfort
7.3Food
7.9Boarding
8.1Crew
7.8Entertainment
Airline reviews

Despite the crew's rough day, they were all very focused and friendly. The flight was too short for a meal, so no rating on that. Re. the AA app. It still isn't ready for prime time. AA works with Cathy Pacific for international flights to LA and the Aa jump to PHX. But the AA app can't find my trip and this can be problematic with flight delays and regatings at LAX.

10.0 ExcellentBruce, May 2026
LAX - PHX
Read more Cathay Pacific reviews

Despite the crew's rough day, they were all very focused and friendly. The flight was too short for a meal, so no rating on that. Re. the AA app. It still isn't ready for prime time. AA works with Cathy Pacific for international flights to LA and the Aa jump to PHX. But the AA app can't find my trip and this can be problematic with flight delays and regatings at LAX.

Was not able to board flight because boarding pass name did not match passport name and no one caught it.

Had a bad experience with crew member coming back Hong Kong to la the person next to me one of the passenger have taken video and picture of crew member the person that served meal young kid late 20' s 6 5'10 had attitude at his peak anything I asked for I don't know if it was bad day or racial I felt humiliated as people could see difference towards me I no problem with Cathy and my whole family never had one was very disappointed

Frequently flyer number should and could have been put on at the time of booking as I gave the number when booking.

Very attentive crews Flight was very smooth and safe Only little disappointment was the slight delay of departure (~30 minutes ) which rarely happen with CX flights

Not at all satisfactory. I had stomach upsets after taking food. Quality of Asian vegetarian meal was awful. Further there was no snacks/ fruits/ biscuits available as in between snacks.. only peanuts and pitzels.. except courteous staff rest of my experience was far from satisfactory

Staff was very courteous. Plane was clean and quite spacious even in the last rows. Veg food could have been better.

Later on, when there was no more bottled water, the water we received had a strong chlorine/disinfectant odor. On my flight from Hong Kong to Los Angeles, there was a male flight attendant who had a mean attitude throughout the whole trip, and he was very impatient during meal service “Furthermore, we purchased a Hong Kong SIM card as part of our flight package, but we received no instructions—neither by email nor SMS—on how to activate or use it. Consequently, we were unable to use the service at all. We request a full refund, as this appears to be a deceptive charge

Everything and everyone were excellent except for the charge for using WiFi; there was no escape from this fee except to not use it.

The crew and the food were excellent. The plane was kept quite clean.

Really good food and service. Qatar Airways is again and again provided an exceptional experience.

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.

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

Information on your arrival and departure airports