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Kathmandu

$708+ 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KTM
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Kathmandu Tribhuvan are usually found in March or February, booked 89 days in advance, depart on a Saturday or Monday and return on a Monday

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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,468
(American Airlines)

One-way from

$708
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$1,204
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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One-way flight from Lambert-St Louis to Kathmandu Tribhuvan
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Highest demand for flights based on searches. 11% potential increase in price ($213 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 March 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 March 25, 2025.

This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/62:49 pmSTL - KTM
2 stops31h 16mMultiple Airlines
Tue 8/196:00 pmKTM - STL
2 stops31h 42mMultiple Airlines
Deal found 3/24$1,468
This Justfly.com deal was found by Cheapflights users on 3/23. 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 8/27:55 amSTL - KTM
2 stops35h 35mTurkish Airlines
Mon 8/187:40 amKTM - STL
2 stops42h 49mTurkish Airlines
Deal found 3/23$1,695
This Ovago deal was found by Cheapflights users on 3/24. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/233:40 pmSTL - KTM
2 stops45h 45mEmirates
Thu 5/221:10 amKTM - STL
2 stops30h 50mEmirates
Deal found 3/24$2,062
This FlightHub deal was found by Cheapflights users on 3/24. 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 8/56:41 amSTL - KTM
2 stops39h 24mQatar Airways
Wed 8/2010:05 amKTM - STL
2 stops48h 39mQatar Airways
Deal found 3/24$2,203
This Gurufare deal was found by Cheapflights users on 3/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/317:38 pmSTL - KTM
2 stops39h 37mCathay Pacific
Sun 8/1711:10 pmKTM - STL
2 stops34h 05mCathay Pacific
Deal found 3/23$2,666

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 March 25, 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

Wed 8/6

2:49 pm-8:50 am

2 stops31h 16m

Kathmandu Tribhuvan

Tue 8/19

6:00 pm-2:57 pm

2 stops31h 42m

$1,468

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 8/2

7:55 am-6:15 am

2 stops35h 35m

Kathmandu Tribhuvan

Mon 8/18

7:40 am-3:44 pm

2 stops42h 49m

$1,695

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 4/23

3:40 pm-12:10 am

2 stops45h 45m

Kathmandu Tribhuvan

Thu 5/22

1:10 am-9:15 pm

2 stops30h 50m

$2,062

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 8/5

6:41 am-8:50 am

2 stops39h 24m

Kathmandu Tribhuvan

Wed 8/20

10:05 am-11:59 pm

2 stops48h 39m

$2,203

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 7/31

7:38 pm-10:00 pm

2 stops39h 37m

Kathmandu Tribhuvan

Sun 8/17

11:10 pm-10:30 pm

2 stops34h 05m

$2,666

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 5/24

2:25 pm-6:35 am

3 stops53h 25m

$708

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 5/26

7:19 pm-10:00 pm

2 stops39h 56m

$1,611

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 5/30

8:10 am-6:15 am

2 stops35h 20m

$1,640

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/23

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Kathmandu. Price data was last updated on March 21, 2025.

The best time to book flights from St. Louis to Kathmandu is 89 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, September is the cheapest month in which you can book a flight from St. Louis to Kathmandu (average of $1,237). Flying from St. Louis to Kathmandu in June is currently the most expensive (average of $1,976). 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 March 25, 2025.

It’s optimal to fly from St. Louis to Kathmandu in the morning. By choosing this option you can save up to 6% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from St. Louis to Kathmandu?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Kathmandu. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Kathmandu flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

Temperature in Kathmandu by month

Plan your trip to Kathmandu by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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 March 25, 2025.
Emirates
8.0
Very good
3,189 reviews

Entertainment

8.2

Food

7.8

Overall

8.0

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.0
Very good
3,189 reviews
Emirates
8.0
Very good
3,189 reviews

Entertainment

8.2

Food

7.8

Overall

8.0

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Cathay Pacific
7.5
Good
832 reviews
Emirates
8.0
Very good
3,189 reviews

Entertainment

8.2

Food

7.8

Overall

8.0

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,540 reviews
Emirates
8.0
Very good
3,189 reviews

Entertainment

8.2

Food

7.8

Overall

8.0

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Turkish Airlines
7.3
Good
3,745 reviews
Emirates
8.0
Very good
3,189 reviews

Entertainment

8.2

Food

7.8

Overall

8.0

Crew

8.3

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

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

    Our cheapest airline available from St. Louis to Kathmandu is Turkish Airlines. Our recent data shows that you can find tickets from as low as $1,695 on this airline. Additional options worth looking into are Emirates and Qatar Airways, starting at $2,062 and $2,203 round-trip.

  • 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, September is the cheapest month in which you can book a flight from St. Louis to Kathmandu (average of $1,237). Flying from St. Louis to Kathmandu in June is currently the most expensive (average of $1,976). 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 St. Louis?

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Alternative routes for St. Louis to Kathmandu

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Kansas City to Kathmandu flights

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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,111Average$1,491FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,895Average$2,307FlexibilityNo cancel feeOn-time72%
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