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Kathmandu

$1,198+ Cheap flights from St. Louis (STL) to Kathmandu (KTM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KTM
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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Cheap 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 December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,198
(Cathay Pacific)

Popular in

January

Cheapest in

March

Average price

$2,097
Provider with most accurate pricing for Lambert-St Louis-Kathmandu Tribhuvan flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Kathmandu Tribhuvan flights.
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From Lambert-St Louis to Kathmandu Tribhuvan
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Highest demand for flights based on searches. 10% potential increase in price ($199 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Find 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 December 1, 2025.

This oojo deal was found by Cheapflights users on 11/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:38 amSTL - KTM
2 stops35h 32mQatar Airways
Sat 12/67:05 pmKTM - STL
2 stops40h 37mQatar Airways
Deal found 11/30$1,602
This oojo deal was found by Cheapflights users on 12/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:54 pmSTL - KTM
2 stops29h 16mQatar Airways
Sun 12/75:40 pmKTM - STL
2 stops42h 04mQatar Airways
Deal found 12/1$1,683
This Mytrip deal was found by Cheapflights users on 11/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:05 pmSTL - KTM
3 stops33h 40mMultiple Airlines
Mon 1/1212:25 amKTM - STL
3 stops29h 36mMultiple Airlines
Deal found 11/29$1,813
This oojo deal was found by Cheapflights users on 11/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:55 amSTL - KTM
2 stops47h 10mQatar Airways
Tue 1/135:40 pmKTM - STL
2 stops39h 20mQatar Airways
Deal found 11/29$1,825
This Mytrip deal was found by Cheapflights users on 11/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:59 pmSTL - KTM
2 stops30h 11mMultiple Airlines
Sat 12/62:55 pmKTM - STL
3 stops34h 45mMultiple Airlines
Deal found 11/30$2,117
This Mytrip deal was found by Cheapflights users on 12/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:54 pmSTL - KTM
2 stops29h 16mMultiple Airlines
Sun 12/73:35 pmKTM - STL
3 stops35h 37mMultiple Airlines
Deal found 12/1$2,354
This oojo deal was found by Cheapflights users on 11/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:00 amSTL - KTM
2 stops40h 25mMultiple Airlines
Tue 1/1312:35 pmKTM - STL
2 stops37h 40mMultiple Airlines
Deal found 11/29$2,541

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 December 1, 2025.
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

Tue 1/20

11:05 am-9:30 pm

2 stops46h 40m

Kathmandu Tribhuvan

Tue 3/3

10:55 pm-11:48 pm

2 stops36h 38m

$1,198

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 3/1

7:00 am-4:25 pm

2 stops45h 40m

Kathmandu Tribhuvan

Thu 3/12

7:05 pm-11:59 pm

2 stops39h 39m

$1,234

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 1/22

11:05 am-9:30 pm

2 stops46h 40m

Kathmandu Tribhuvan

Mon 1/26

10:55 pm-10:59 pm

2 stops35h 49m

$1,239

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 3/31

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Fri 5/1

10:55 am-9:35 pm

2 stops45h 25m

$1,340

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 2/25

7:00 am-5:50 pm

2 stops47h 05m

Kathmandu Tribhuvan

Sat 3/14

5:40 pm-11:48 pm

2 stops40h 53m

$1,371

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 1/15

1:35 pm-4:25 pm

2 stops39h 05m

Kathmandu Tribhuvan

Thu 1/22

9:10 am-10:44 pm

2 stops49h 19m

$1,407

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 3/1

3:50 pm-9:50 am

3 stops30h 15m

Kathmandu Tribhuvan

Thu 3/12

2:55 pm-2:55 pm

3 stops34h 45m

$1,661

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 3/31

3:54 pm-4:45 pm

2 stops38h 06m

Kathmandu Tribhuvan

Thu 4/30

12:25 am-7:30 pm

3 stops29h 50m

$1,764

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Kathmandu flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 June is currently the most expensive (average of $1,990). 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.

What is the cheapest time of day to fly from STL to KTM?

Find hourly flight availability from St. Louis to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 1, 2025.

It’s optimal to fly from St. Louis to Kathmandu in the morning. By choosing this option you can save up to 5% on the cost of your flight, compared to a flight at noon.

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 December 1, 2025.
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
3,680 reviews

Comfort

7.4

Food

7.3

Crew

7.9

Entertainment

7.4

Boarding

7.5

Overall

7.4

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
3,680 reviews
Qatar Airways
7.4
Good
3,680 reviews

Comfort

7.4

Food

7.3

Crew

7.9

Entertainment

7.4

Boarding

7.5

Overall

7.4

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 Qatar Airways and Cathay Pacific 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 1h. 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 $1,194 on this airline. Qatar Airways is currently priced 29% 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 June is currently the most expensive (average of $1,990). 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

Browse thousands of different options on Cheapflights for your next trip

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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 December 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,194Average$1,492FlexibilityNo cancel feeOn-time68%

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