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Kathmandu

$582+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KTM
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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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 January 21, 2026.

This KAYAK deal was found by Cheapflights users on 1/20. 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.
Mon 4/276:11 pm
STL
-
KTM
2 stops40h 49m
Cathay Pacific
Mon 6/1511:00 pm
KTM
-
STL
2 stops33h 19m
Cathay Pacific
Deal found 1/20$1,248
This KAYAK deal was found by Cheapflights users on 1/21. 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.
Thu 4/165:20 am
STL
-
KTM
2 stops53h 40m
Cathay Pacific
Wed 4/2211:00 pm
KTM
-
STL
2 stops35h 33m
Cathay Pacific
Deal found 1/21$1,254
This Qatar Airways deal was found by Cheapflights users on 1/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:41 am
STL
-
KTM
2 stops40h 24m
Qatar Airways
Thu 9/246:45 pm
KTM
-
STL
2 stops39h 59m
Qatar Airways
Deal found 1/20$1,265
This Cathay Pacific deal was found by Cheapflights users on 1/19. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:11 pm
STL
-
KTM
2 stops46h 49m
Multiple Airlines
Wed 6/311:00 pm
KTM
-
STL
2 stops33h 19m
Multiple Airlines
Deal found 1/19$1,278
This KAYAK deal was found by Cheapflights users on 1/19. 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 5/19:37 am
STL
-
KTM
2 stops49h 23m
Cathay Pacific
Tue 6/211:00 pm
KTM
-
STL
2 stops32h 11m
Cathay Pacific
Deal found 1/19$1,298
This Qatar Airways deal was found by Cheapflights users on 1/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:41 am
STL
-
KTM
2 stops40h 24m
Qatar Airways
Mon 9/286:45 pm
KTM
-
STL
2 stops39h 59m
Qatar Airways
Deal found 1/20$1,305
This Qatar Airways deal was found by Cheapflights users on 1/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:41 am
STL
-
KTM
2 stops40h 24m
Qatar Airways
Sun 9/276:45 pm
KTM
-
STL
2 stops39h 59m
Qatar Airways
Deal found 1/20$1,310
This KAYAK deal was found by Cheapflights users on 1/19. 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.
Wed 4/2912:11 pm
STL
-
KTM
2 stops46h 49m
Cathay Pacific
Wed 6/311:00 pm
KTM
-
STL
2 stops33h 19m
Cathay Pacific
Deal found 1/19$1,326
This Qatar Airways deal was found by Cheapflights users on 1/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:41 am
STL
-
KTM
2 stops47h 19m
Qatar Airways
Wed 10/285:40 pm
KTM
-
STL
2 stops41h 04m
Qatar Airways
Deal found 1/20$1,328
This Cathay Pacific deal was found by Cheapflights users on 1/20. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:45 pm
STL
-
KTM
2 stops39h 15m
Cathay Pacific
Wed 10/711:00 pm
KTM
-
STL
2 stops34h 13m
Cathay Pacific
Deal found 1/20$1,332
This Qatar Airways deal was found by Cheapflights users on 1/20. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:41 am
STL
-
KTM
2 stops40h 24m
Qatar Airways
Sun 9/276:45 pm
KTM
-
STL
2 stops39h 59m
Qatar Airways
Deal found 1/20$1,350
This FlightHub deal was found by Cheapflights users on 1/18. 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.
Sun 2/227:00 am
STL
-
KTM
2 stops45h 40m
Qatar Airways
Sat 3/77:05 pm
KTM
-
STL
2 stops31h 08m
Qatar Airways
Deal found 1/18$1,364

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,248
(KAYAK)

Popular in

January

Cheapest in

April

Average price

$2,189
Provider with most accurate pricing for Lambert-St Louis-Kathmandu Tribhuvan flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Kathmandu Tribhuvan flights.
Search Deals
From Lambert-St Louis to Kathmandu Tribhuvan
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($166 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
Use the filters below to find and compare flights from St. Louis to Kathmandu that are best for you.

Fly from

St. Louis

Fly to

Kathmandu

Route

Depart

Return

Price

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/16

5:20 am-9:45 pm

2 stops53h 40m

Kathmandu Tribhuvan

Wed 4/22

11:00 pm-11:48 pm

2 stops35h 33m

$1,254

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/30

12:11 pm-9:45 pm

2 stops46h 49m

Kathmandu Tribhuvan

Wed 6/3

11:00 pm-9:34 pm

2 stops33h 19m

$1,278

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 5/1

9:37 am-9:45 pm

2 stops49h 23m

Kathmandu Tribhuvan

Tue 6/2

11:00 pm-8:26 pm

2 stops32h 11m

$1,298

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 4/29

12:11 pm-9:45 pm

2 stops46h 49m

Kathmandu Tribhuvan

Wed 6/3

11:00 pm-9:34 pm

2 stops33h 19m

$1,326

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 2/22

7:00 am-4:25 pm

2 stops45h 40m

Kathmandu Tribhuvan

Sat 3/7

7:05 pm-2:28 pm

2 stops31h 08m

$1,364

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 3/6

7:00 am-4:25 pm

2 stops45h 40m

Kathmandu Tribhuvan

Fri 3/13

5:40 pm-9:11 pm

2 stops38h 16m

$1,374

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/30

12:11 pm-9:45 pm

2 stops46h 49m

Kathmandu Tribhuvan

Tue 6/2

11:00 pm-9:34 pm

2 stops33h 19m

$1,387

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 4/29

12:11 pm-9:45 pm

2 stops46h 49m

Kathmandu Tribhuvan

Tue 6/2

11:00 pm-9:34 pm

2 stops33h 19m

$1,387

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 4/29

6:11 pm-7:55 am

2 stops26h 59m

Kathmandu Tribhuvan

Thu 6/4

6:15 pm-6:30 pm

2 stops35h 00m

$1,535

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/30

12:27 pm-7:55 am

2 stops32h 43m

Kathmandu Tribhuvan

Thu 6/4

6:15 pm-6:30 pm

2 stops35h 00m

$1,560

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 13 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 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 Expedia the most. Expedia 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

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

Currently, March is the cheapest month in which you can book a flight from St. Louis to Kathmandu (average of $766). Flying from St. Louis to Kathmandu in May is currently the most expensive (average of $1,737). 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 January 21, 2026.
Peruse reviews from past customers who have flown with 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.
Qatar Airways
7.4
Good
3,718 reviews

Crew

7.9

Overall

7.4

Boarding

7.5

Comfort

7.4

Entertainment

7.4

Food

7.3

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,718 reviews
Qatar Airways
7.4
Good
3,718 reviews

Crew

7.9

Overall

7.4

Boarding

7.5

Comfort

7.4

Entertainment

7.4

Food

7.3

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

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 Cathay Pacific and Qatar Airways fly from St. Louis to Kathmandu in about 45h 40m. The time it takes to get you to your destination can typically vary by up to 8h. The distance from St. Louis to Kathmandu is about 7832 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from St. Louis to Kathmandu round-trip?

    Our cheapest airline available from St. Louis to Kathmandu is Qatar Airways. Our recent data shows that you can find tickets from as low as $1,249 on this airline. Qatar Airways is currently priced 25% 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, March is the cheapest month in which you can book a flight from St. Louis to Kathmandu (average of $766). Flying from St. Louis to Kathmandu in May is currently the most expensive (average of $1,737). 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.
Kansas City to Kathmandu flights

Top airline flying from St. Louis to Kathmandu

Discover the top airline 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,249Average$1,507FlexibilityNo cancel feeOn-time68%

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