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Kathmandu

$1,454+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — KTM
Apr 16 — Apr 231
Wed 4/16
Wed 4/23
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 51 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 April 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,454
(oojo)

Popular in

June

Cheapest in

March

Average price

$1,468
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
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($240 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 11, 2025.

This oojo deal was found by Cheapflights users on 4/10. 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 5/19:41 amSTL - KTM
2 stops49h 19mCathay Pacific
Sun 5/1111:00 pmKTM - STL
2 stops33h 37mCathay Pacific
Deal found 4/10$1,454
This Mytrip deal was found by Cheapflights users on 4/10. 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 5/112:00 pmSTL - KTM
2 stops47h 00mMultiple Airlines
Sun 5/115:30 pmKTM - STL
3 stops34h 00mMultiple Airlines
Deal found 4/10$1,794
This oojo deal was found by Cheapflights users on 4/9. 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.
Wed 7/308:00 amSTL - KTM
2 stops35h 30mTurkish Airlines
Fri 8/157:40 amKTM - STL
2 stops49h 50mTurkish Airlines
Deal found 4/9$1,909
This Fareboom deal was found by Cheapflights users on 4/10. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/146:30 amSTL - KTM
2 stops22h 45mAir India
Wed 4/165:00 pmKTM - STL
2 stops32h 27mAir India
Deal found 4/10$2,092
This oojo deal was found by Cheapflights users on 4/9. 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 7/316:25 pmSTL - KTM
2 stops58h 30mEtihad Airways
Thu 8/144:20 pmKTM - STL
2 stops38h 48mEtihad Airways
Deal found 4/9$2,349

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 April 11, 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

Thu 5/1

9:41 am-9:45 pm

2 stops49h 19m

Kathmandu Tribhuvan

Sun 5/11

11:00 pm-9:52 pm

2 stops33h 37m

$1,454

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 5/1

12:00 pm-9:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Sun 5/11

5:30 pm-4:45 pm

3 stops34h 00m

$1,794

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 4/14

6:30 am-4:00 pm

2 stops22h 45m

Kathmandu Tribhuvan

Wed 4/16

5:00 pm-2:42 pm

2 stops32h 27m

$2,092

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

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 April.
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 April 4, 2025.

The best time to book flights from St. Louis to Kathmandu is 50 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 $1,960). 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 April 11, 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 April 11, 2025.
Cathay Pacific
7.5
Good
844 reviews

Food

7.2

Overall

7.5

Comfort

7.6

Boarding

7.9

Crew

8.0

Entertainment

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

BOS - HKG

It would have been nice to understand the dates of takeoff! We missed our flight and now have to pay an extra $454.00 Very stressful and not easy to check in or get information
Cathay Pacific
7.5
Good
844 reviews
Cathay Pacific
7.5
Good
844 reviews

Food

7.2

Overall

7.5

Comfort

7.6

Boarding

7.9

Crew

8.0

Entertainment

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

BOS - HKG

It would have been nice to understand the dates of takeoff! We missed our flight and now have to pay an extra $454.00 Very stressful and not easy to check in or get information
Turkish Airlines
7.3
Good
3,753 reviews
Cathay Pacific
7.5
Good
844 reviews

Food

7.2

Overall

7.5

Comfort

7.6

Boarding

7.9

Crew

8.0

Entertainment

7.7

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2025

BOS - HKG

It would have been nice to understand the dates of takeoff! We missed our flight and now have to pay an extra $454.00 Very stressful and not easy to check in or get information

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 Cathay Pacific. Our recent data shows that you can find tickets from as low as $1,454 on this airline. An additional option worth looking into is Turkish Airlines, starting at $1,909. Cathay Pacific is currently priced 12% 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, 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 $1,960). 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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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 April 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,096Average$1,489FlexibilityNo cancel feeOn-time68%
Cathay PacificCheapest$1,895Average$2,307FlexibilityNo cancel feeOn-time72%

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