Kathmandu

$830+ Cheap flights from St. Louis (STL) to Kathmandu (KTM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KTM
Jun 3 — Jun 101
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Cheap flight deals from St. Louis to Kathmandu

Cheapest flights from St. Louis to Kathmandu
Explore the most affordable flight options available from St. Louis to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.

This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am
STL
-
KTM
2 stops41h 05m
Qatar Airways
Wed 10/216:45 pm
KTM
-
STL
2 stops39h 59m
Qatar Airways
Deal found 4/29$1,279
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 am
STL
-
KTM
2 stops40h 05m
Qatar Airways
Wed 10/289:35 am
KTM
-
STL
2 stops49h 09m
Qatar Airways
Deal found 4/30$1,366
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 am
STL
-
KTM
2 stops40h 05m
Qatar Airways
Fri 11/66:45 pm
KTM
-
STL
2 stops36h 27m
Qatar Airways
Deal found 4/29$1,424
This FlightHub deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:00 am
STL
-
KTM
2 stops41h 05m
Qatar Airways
Sun 10/186:45 pm
KTM
-
STL
2 stops28h 24m
Qatar Airways
Deal found 5/1$1,444
This FlightHub deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:13 pm
STL
-
KTM
2 stops28h 52m
Qatar Airways
Mon 9/286:00 pm
KTM
-
STL
2 stops33h 27m
Qatar Airways
Deal found 5/2$1,505
This KAYAK deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:56 pm
STL
-
KTM
2 stops58h 04m
Multiple Airlines
Sun 7/510:05 am
KTM
-
STL
2 stops62h 32m
Multiple Airlines
Deal found 4/30$1,507
This Justfly.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:00 am
STL
-
KTM
2 stops45h 40m
Qatar Airways
Tue 11/249:35 am
KTM
-
STL
2 stops42h 00m
Qatar Airways
Deal found 5/1$1,526
This oojo deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:16 am
STL
-
KTM
2 stops35h 49m
Qatar Airways
Fri 9/186:00 pm
KTM
-
STL
2 stops31h 30m
Qatar Airways
Deal found 5/3$1,546
This Justfly.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:12 pm
STL
-
KTM
2 stops61h 48m
Multiple Airlines
Tue 6/97:10 pm
KTM
-
STL
2 stops39h 34m
Multiple Airlines
Deal found 5/1$1,549
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:56 pm
STL
-
KTM
2 stops50h 09m
Multiple Airlines
Wed 7/296:00 pm
KTM
-
STL
2 stops35h 18m
Multiple Airlines
Deal found 4/30$1,559

Find flight deals from St. Louis to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,279
(FlightHub)

One-way from

$793
(Indian Eagle)

Popular in

June

Cheapest in

February

Average price

$1,732
Provider with most accurate pricing for Lambert-St Louis-Kathmandu Tribhuvan flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Kathmandu Tribhuvan flights.
From Lambert-St Louis to Kathmandu Tribhuvan
One-way flight from Lambert-St Louis to Kathmandu Tribhuvan
Highest demand for flights based on searches. 9% potential increase in price ($159 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
Average for round-trip flights in May 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Kathmandu that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from St. Louis to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 10/21

7:00 am-9:50 am

2 stops40h 05m

Kathmandu Tribhuvan

Fri 11/6

6:45 pm-7:27 pm

2 stops36h 27m

$1,424

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 6/19

7:56 pm-4:45 pm

2 stops58h 04m

Kathmandu Tribhuvan

Sun 7/5

10:05 am-1:52 pm

2 stops62h 32m

$1,631

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 9/9

2:12 pm-8:50 am

2 stops31h 53m

Kathmandu Tribhuvan

Sun 9/13

6:00 pm-9:23 pm

2 stops38h 08m

$1,696
Quickest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 6/22

7:24 pm-10:10 am

2 stops28h 01m

Kathmandu Tribhuvan

Wed 7/29

6:00 pm-7:51 pm

2 stops36h 36m

$1,756

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 5/16

5:24 am-8:40 am

2 stops40h 31m

Kathmandu Tribhuvan

Tue 6/16

10:05 am-11:59 pm

2 stops48h 39m

$1,807

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 5/24

7:05 am-11:35 pm

2 stops29h 45m

Kathmandu Tribhuvan

Sun 12/20

12:35 pm-2:18 pm

2 stops37h 28m

$2,122

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 5/27

1:05 pm-9:50 am

3 stops34h 00m

Kathmandu Tribhuvan

Wed 6/24

9:10 pm-8:25 pm

3 stops34h 00m

$2,240
Cheapest one-way
Quickest one-way

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 10/19

6:51 pm-9:50 am

2 stops28h 14m

$830

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

5:11 pm-9:50 am

2 stops29h 54m

$830

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 10/1

3:33 pm-4:45 pm

2 stops38h 27m

$845

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/3

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from St. Louis to Kathmandu

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Kathmandu in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Kathmandu flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Kathmandu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

The best time to book flights from St. Louis to Kathmandu is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from St. Louis to Kathmandu?

Currently, February is the cheapest month in which you can book a flight from St. Louis to Kathmandu (average of $1,360). Flying from St. Louis to Kathmandu in June is currently the most expensive (average of $2,118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from St. Louis to Kathmandu?

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kathmandu. Reviews last updated May 4, 2026.
Peruse reviews from past customers who have flown with Cathay Pacific and Qatar Airways from St. Louis to Kathmandu to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.6

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Comfort

7.6

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Comfort

7.6

Entertainment

7.8

Crew

8.1

Food

7.3

Boarding

7.9

Overall

7.6

Reviews

1 / 20
4.0
Okay

Jasper,Mar 2026

SFO - HKG

Food and comfort. Rice was kinda dry and hard. Ratio of protein to starch was menial.i probably found two chunks of chicken on the stew. Seats were tight. Very cramped. It was a bit warm during the flight. My check in baggage was separated from my connection ting flight. Had to wait a few hours in the airport, costing me extra cash for the driver to wait. I dont think ill be ever flying cathay pacific ever again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from St. Louis to Kathmandu?

    Airlines like Qatar Airways fly from St. Louis to Kathmandu in about 40h 05m. The time it takes to get you to your destination can typically vary by up to . The distance from St. Louis to Kathmandu is about 7832 mi.

  • What are the cheapest airlines flying from St. Louis to Kathmandu round-trip?

    Our cheapest airline available from St. Louis to Kathmandu is Cathay Pacific. Our recent data shows that you can find tickets from as low as $1,295 on this airline. An additional option worth looking into is Qatar Airways, starting at $1,301. Cathay Pacific is currently priced 18% below the average price you’ll pay for this route.

  • Can I find deals for flights from St. Louis to Kathmandu that include hotel bookings?

    Yes. In addition to deals on St. Louis to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Kathmandu.

  • Can I find deals for business class flights from St. Louis to Kathmandu?

    Yes. Cheapflights offers flight deals from St. Louis to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from St. Louis to Kathmandu (average of $1,360). Flying from St. Louis to Kathmandu in June is currently the most expensive (average of $2,118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

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Alternative routes for St. Louis to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from St. Louis to Kathmandu

Discover the top 2 airlines that operate flights from St. Louis to Kathmandu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$1,295Average$1,783FlexibilityNo cancel feeOn-time72%
Qatar AirwaysCheapest$1,301Average$1,538FlexibilityNo cancel feeOn-time68%

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