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

Currently priced at $1,319, Qatar Airways will fly you from Kathmandu to St. Louis and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip.

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

Currently, August is the cheapest month in which you can book a flight from Kathmandu to St. Louis (average of $311). Flying from Kathmandu to St. Louis in March is currently the most expensive (average of $356). 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 day to fly from Kathmandu to St. Louis?

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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

It’s typically best to fly out from Kathmandu to St. Louis in the morning. Doing so could potentially save you 13% on the flight price compared to flying at noon, which is usually more expensive.

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

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

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

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

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

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

Find Cheap Flights from Kathmandu to St. Louis

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kathmandu 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.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Kathmandu to St. Louis, such as Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Qatar Airways

7.4

Good

3,622 reviews

Reviews

1 / 20

6.0

Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Qatar Airways

7.4

Good

3,622 reviews

Qatar Airways

7.4

Good

3,622 reviews

Reviews

1 / 20

6.0

Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

Related info for your journey

What is the cheapest airline to fly from Kathmandu to St. Louis round-trip?
Currently priced at $1,319, Qatar Airways will fly you from Kathmandu to St. Louis and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip.
Can I find deals for flights from Kathmandu to St. Louis that include hotel bookings?
Yes. In addition to deals on Kathmandu to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kathmandu to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to St. Louis.
Can I find deals for business class flights from Kathmandu to St. Louis?
Yes. Cheapflights offers flight deals from Kathmandu to St. Louis 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 Kathmandu to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Kathmandu to St. Louis (average of $311). Flying from Kathmandu to St. Louis in March is currently the most expensive (average of $356). 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.

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Top airline flying from Kathmandu to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest$1,319	Average$1,464	FlexibilityNo cancel fee	On-time68%

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Find cheap flights from Kathmandu to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kathmandu with our price prediction graph.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Kathmandu to St. Louis, such as Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kathmandu to St. Louis

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

Complete your trip

Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Kathmandu to St. Louis by cabin class

Find flights from Kathmandu to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Kathmandu and St. Louis flights

Browse other Kathmandu and St. Louis flight options. Last updated on September 17, 2025.

Popular flight searches

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Other flights to St. Louis

Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2025.

Top airline flying from Kathmandu to St. Louis

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

Find cheap flights from Kathmandu to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kathmandu with our price prediction graph.

Reviews of airlines servicing St. Louis

Read through reviews of airlines operating flights from Kathmandu to St. Louis, such as Qatar Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kathmandu to St. Louis

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

Top airline flying from Kathmandu to St. Louis

100% Free

Book with Flexibility

Travel Smart