STL - KTM

$640 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 8/26. 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 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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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, Aug 11 - Thu, Oct 16
Qatar Airways Logo
5:52 pm - 8:50 amSTL-KTM
28h 13m2 stops
Qatar Airways Logo
7:05 pm - 8:23 pmKTM-STL
36h 03m2 stops
$1,455Qatar Airways
Find Deal
Wed, Oct 8 - Wed, Oct 29
Qatar Airways Logo
6:05 pm - 5:50 pmSTL-KTM
37h 00m2 stops
Qatar Airways Logo
6:45 pm - 7:08 pmKTM-STL
35h 08m2 stops
$1,457Qatar Airways
Find Deal
Wed, Jul 9 - Wed, Jul 16
Qatar Airways Logo
1:16 pm - 8:50 amSTL-KTM
32h 49m2 stops
Qatar Airways Logo
6:00 pm - 11:57 pmKTM-STL
40h 42m2 stops
$1,468Qatar Airways
Find Deal
Wed, Jul 9 - Wed, Jul 16
Air India Logo
8:00 am - 8:05 pmSTL-KTM
25h 20m2 stops
Air India Logo
9:00 pm - 2:37 pmKTM-STL
28h 22m3 stops
$1,963Air India
Find Deal
Wed, Jul 9 - Wed, Jul 16
 Logo
1:30 pm - 6:15 amSTL-KTM
30h 00m3 stops
 Logo
1:25 pm - 4:31 pmKTM-STL
37h 51m3 stops
$1,998
Find Deal
Mon, Dec 8 - Wed, Jan 7
Qatar Airways Logo
1:45 pm - 8:15 amSTL-KTM
30h 45m2 stops
Qatar Airways Logo
5:40 pm - 9:49 pmKTM-STL
39h 54m2 stops
$2,001Qatar Airways
Find Deal
Wed, Jul 9 - Wed, Jul 16
 Logo
1:30 pm - 6:15 amSTL-KTM
30h 00m3 stops
 Logo
1:25 pm - 4:31 pmKTM-STL
37h 51m3 stops
$2,034
Find Deal
Mon, Jun 23 - Mon, Jun 30
Qatar Airways Logo
1:24 pm - 8:50 amSTL-KTM
32h 41m2 stops
Qatar Airways Logo
6:00 pm - 7:11 pmKTM-STL
35h 56m2 stops
$2,223Qatar Airways
Find Deal
Mon, Dec 8 - Sat, Jan 3
Emirates Logo
3:15 pm - 6:15 pmSTL-KTM
39h 15m2 stops
Emirates Logo
12:55 am - 7:25 pmKTM-STL
30h 15m2 stops
$5,612Emirates
Find Deal
Tue, Dec 9 - Sat, Jan 3
Emirates Logo
3:15 pm - 8:20 amSTL-KTM
29h 20m2 stops
Emirates Logo
12:55 am - 7:25 pmKTM-STL
30h 15m2 stops
$5,905Emirates
Find Deal
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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’s the cheapest day of the week to fly from St. Louis to Kathmandu?

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

For St. Louis to Kathmandu, Saturday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Kathmandu back to St. Louis, the best deals are generally found on Monday, with Saturday being the most expensive.

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 March, where tickets cost $1,210 (return) on average. On the other hand, the most expensive months are August and December, where the average cost of round-trip tickets is $2,151 and $2,110 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 8 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJune
High seasonOctober
Cheapest flight$640
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly and prices are also 11% lower on average.
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 $640 for a one-way ticket and $1,455 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, and Star Alliance are the airline alliances operating flights between St. Louis and Kathmandu, with oneworld being the most commonly used for this route.

  • 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.

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.
7.5
Cathay PacificOverall score based on 892 reviews
7.3Food
7.9Boarding
7.6Comfort
7.8Entertainment
8.0Crew
Airline reviews

Short staffs, I ask stewardess to bring me cognac twice during dinner but they didn't bring it!

6.0 GoodWinston, May 2025MNL - HKG
Read more Cathay Pacific reviews

Short staffs, I ask stewardess to bring me cognac twice during dinner but they didn't bring it!

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Crew was great. But a bit understaffed. The business class seat, etc were dated. But comfortable. Some legs had entertainment system from a decade ago. Selections were rather poor. Food was mediocre at best. Actually poor for business class standards. I liked the lounge in Hong Kong. Showers were great. Food was nice.

Everything was fine and I have no complaints or things to note.

The economy seats are much indeed roomier. Meals needs improvement.

It was okay overall but the food was very, very bad.

When comes to Taiwan airlines China airlines is the best rest are pure trash

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Baggage delayed for 2 days and still chasing for reimbursement of basis items. Very horrible customer care service.

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.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

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

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