What is the cheapest airline that flies from Lambert-St Louis to Kathmandu Tribhuvan?

Qatar Airways is the most popular carrier operating from Lambert-St Louis to Kathmandu Tribhuvan

What airlines fly to Kathmandu?

Qatar Airways, Cathay Pacific and Turkish Airlines are the top three most popular airlines that fly to Kathmandu from St. Louis according to our data. Qatar Airways is the first choice among our users, with 87% of people opting to fly with this airline when traveling to Kathmandu. Keep in mind that there are 3 different airlines that fly to Kathmandu on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?

Prices for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport were last updated today.

How many operators does momondo search for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?

There are 3 operators available for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport as of October 2026.

How old do you have to be to fly from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport.

What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?

The necessary travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$850 Cheap Flights from St. Louis to Kathmandu in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Kathmandu

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:24 pm - 4:45 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

62h 36m2 stops Seattle/Tacoma Intl Doha Hamad Intl

10:05 am - 11:44 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

48h 24m2 stops Doha Hamad Intl Seattle/Tacoma Intl

$1,371Qatar Airways

Mon, Apr 12 - Tue, May 4

7:29 am - 11:20 amSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

40h 06m2 stops Chicago O'Hare Intl Istanbul

12:45 pm - 7:45 amKTM Kathmandu Tribhuvan-STL Lambert-St Louis

54h 45m2 stops Istanbul Detroit Metropolitan Wayne County

$1,439Multiple Airlines

Mon, Feb 1 - Mon, Mar 1

6:30 am - 8:20 amSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

38h 05m2 stops Philadelphia Doha Hamad Intl

10:05 am - 11:44 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

48h 24m2 stops Doha Hamad Intl Seattle/Tacoma Intl

$1,449Qatar Airways

Mon, Mar 1 - Tue, Apr 27

12:27 pm - 4:45 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

41h 33m2 stops Dallas/Fort Worth Doha Hamad Intl

10:05 am - 11:44 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

48h 24m2 stops Doha Hamad Intl Seattle/Tacoma Intl

$1,473Qatar Airways

Sun, Apr 11 - Tue, May 4

12:08 pm - 4:15 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

40h 22m2 stops Dallas/Fort Worth Doha Hamad Intl

7:00 pm - 2:26 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

54h 11m2 stops Doha Hamad Intl Seattle/Tacoma Intl

$1,499Qatar Airways

Sun, Mar 7 - Sat, Mar 20

8:00 pm - 11:20 amSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

51h 35m2 stops Atlanta Hartsfield-Jackson Istanbul

12:45 pm - 7:45 amKTM Kathmandu Tribhuvan-STL Lambert-St Louis

54h 45m2 stops Istanbul Detroit Metropolitan Wayne County

$1,643Multiple Airlines

Wed, Dec 23 - Wed, Jan 20

8:00 pm - 11:20 amSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

51h 35m2 stops Atlanta Hartsfield-Jackson Istanbul

12:45 pm - 7:45 amKTM Kathmandu Tribhuvan-STL Lambert-St Louis

54h 45m2 stops Istanbul Detroit Metropolitan Wayne County

$1,643Multiple Airlines

Wed, Dec 23 - Sat, Jan 23

6:30 am - 11:20 amSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

41h 05m2 stops Chicago O'Hare Intl Istanbul

12:45 pm - 9:37 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

44h 37m2 stops Istanbul Chicago O'Hare Intl

$2,169Turkish Airlines

Sun, Dec 13 - Wed, Jan 13

6:30 am - 11:20 amSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

41h 05m2 stops Chicago O'Hare Intl Istanbul

12:45 pm - 9:37 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

44h 37m2 stops Istanbul Chicago O'Hare Intl

$2,200Turkish Airlines

Sun, Dec 13 - Tue, Jan 12

6:30 am - 11:20 amSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

41h 05m2 stops Chicago O'Hare Intl Istanbul

12:45 pm - 9:37 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

44h 37m2 stops Istanbul Chicago O'Hare Intl

$2,200Turkish Airlines

Mon, Dec 14 - Thu, Jan 14

Cheap last minute flights

Enter your travel dates to find the best prices.

1:20 pm - 5:45 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

40h 40m2 stops Chicago O'Hare Intl Doha Hamad Intl

5:30 pm - 6:17 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

36h 32m2 stops Doha Hamad Intl Chicago O'Hare Intl

$2,000Qatar Airways

Wed, Nov 4 - Tue, Nov 17

5:00 am - 5:45 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

49h 00m2 stops Miami Doha Hamad Intl

5:30 pm - 6:17 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

36h 32m2 stops Doha Hamad Intl Chicago O'Hare Intl

$2,033Qatar Airways

Wed, Nov 4 - Tue, Nov 17

5:00 am - 5:45 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

49h 00m2 stops Miami Doha Hamad Intl

5:30 pm - 10:17 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

40h 32m2 stops Doha Hamad Intl Chicago O'Hare Intl

$2,033Qatar Airways

Wed, Nov 4 - Tue, Dec 1

8:10 am - 4:15 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

44h 20m2 stops Los Angeles Doha Hamad Intl

5:30 pm - 6:49 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

37h 04m2 stops Doha Hamad Intl Chicago O'Hare Intl

$2,149Qatar Airways

Thu, Nov 5 - Sat, Dec 5

3:51 pm - 2:35 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

58h 59m3 stops Washington, D.C. Reagan-National New York John F Kennedy Intl Doha Hamad Intl

5:30 pm - 7:22 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

37h 37m2 stops Doha Hamad Intl Chicago O'Hare Intl

$2,153Qatar Airways

Wed, Nov 4 - Tue, Nov 17

3:40 pm - 1:50 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

34h 25m3 stops Frankfurt am Main Munich Franz Josef Strauss Sharjah

12:10 pm - 11:10 amKTM Kathmandu Tribhuvan-STL Lambert-St Louis

34h 45m3 stops Chengdu Tianfu Intl Los Angeles Atlanta Hartsfield-Jackson

$2,349Multiple Airlines

Wed, Nov 4 - Tue, Dec 1

3:40 pm - 1:50 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

34h 25m3 stops Frankfurt am Main Munich Franz Josef Strauss Sharjah

10:45 pm - 3:26 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

28h 26m2 stops Hong Kong Intl Toronto Pearson Intl

$2,735Multiple Airlines

Wed, Nov 4 - Tue, Dec 1

3:40 pm - 2:05 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

34h 40m3 stops Frankfurt am Main Amsterdam Schiphol Mumbai Chhatrapati Shivaji Intl

3:05 pm - 1:45 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

34h 25m3 stops Mumbai Chhatrapati Shivaji Intl Bengaluru Intl Frankfurt am Main

$2,859Multiple Airlines

Wed, Nov 4 - Tue, Nov 17

4:05 pm - 2:35 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

34h 45m3 stops Toronto Pearson Intl Paris Charles de Gaulle Doha Hamad Intl

3:05 pm - 1:45 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

34h 25m3 stops Mumbai Chhatrapati Shivaji Intl Munich Franz Josef Strauss Frankfurt am Main

$3,308Multiple Airlines

Thu, Nov 5 - Sat, Dec 5

6:00 am - 9:30 pmSTL Lambert-St Louis-KTM Kathmandu Tribhuvan

27h 45m2 stops Seattle/Tacoma Intl Hong Kong Intl

12:30 pm - 3:06 pmKTM Kathmandu Tribhuvan-STL Lambert-St Louis

38h 21m3 stops Guangzhou Baiyun Vancouver Intl Seattle/Tacoma Intl

$5,980Multiple Airlines

Thu, Nov 5 - Sat, Dec 5

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Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets

Qatar Airways

Apr 12

STL3:24 pmLambert-St Louis

62h 36m

2 stops

KTM4:45 pmKathmandu Tribhuvan

May 4

KTM10:05 amKathmandu Tribhuvan

48h 24m

2 stops

STL11:44 pmLambert-St Louis

$1,371

Qatar Airways

Mar 1

STL6:30 amLambert-St Louis

38h 05m

2 stops

KTM8:20 amKathmandu Tribhuvan

Apr 27

KTM10:05 amKathmandu Tribhuvan

48h 24m

2 stops

STL11:44 pmLambert-St Louis

$1,449

Qatar Airways

Apr 11

STL12:27 pmLambert-St Louis

41h 33m

2 stops

KTM4:45 pmKathmandu Tribhuvan

May 4

KTM10:05 amKathmandu Tribhuvan

48h 24m

2 stops

STL11:44 pmLambert-St Louis

$1,473

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Mon 4/12

3:24 pm-4:45 pm

2 stops62h 36m

Kathmandu Tribhuvan

Tue 5/4

10:05 am-11:44 pm

2 stops48h 24m

$1,371

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Mon 2/1

7:29 am-11:20 am

2 stops40h 06m

Kathmandu Tribhuvan

Mon 3/1

12:45 pm-7:45 am

2 stops54h 45m

$1,439

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Mon 3/1

6:30 am-8:20 am

2 stops38h 05m

Kathmandu Tribhuvan

Tue 4/27

10:05 am-11:44 pm

2 stops48h 24m

$1,449

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Sun 4/11

12:27 pm-4:45 pm

2 stops41h 33m

Kathmandu Tribhuvan

Tue 5/4

10:05 am-11:44 pm

2 stops48h 24m

$1,473

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Sun 3/7

12:08 pm-4:15 pm

2 stops40h 22m

Kathmandu Tribhuvan

Sat 3/20

7:00 pm-2:26 pm

2 stops54h 11m

$1,499

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Wed 12/23

8:00 pm-11:20 am

2 stops51h 35m

Kathmandu Tribhuvan

Wed 1/20

12:45 pm-7:45 am

2 stops54h 45m

$1,643

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Wed 12/23

8:00 pm-11:20 am

2 stops51h 35m

Kathmandu Tribhuvan

Sat 1/23

12:45 pm-7:45 am

2 stops54h 45m

$1,643

Quickest round-trip

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Sun 12/13

6:30 am-11:20 am

2 stops41h 05m

Kathmandu Tribhuvan

Wed 1/13

12:45 pm-9:37 pm

2 stops44h 37m

$2,169

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Sun 12/13

6:30 am-11:20 am

2 stops41h 05m

Kathmandu Tribhuvan

Tue 1/12

12:45 pm-9:37 pm

2 stops44h 37m

$2,200

St. LouisKathmandu

STL Lambert-St Louis - KTM Kathmandu Tribhuvan

STLKTM

Lambert-St Louis

Mon 12/14

6:30 am-11:20 am

2 stops41h 05m

Kathmandu Tribhuvan

Thu 1/14

12:45 pm-9:37 pm

2 stops44h 37m

$2,200

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Kathmandu

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Kathmandu?

The month of February is another great option to travel to Kathmandu, with average flight prices from St. Louis averaging around $1,393.

How far in advance should I book a flight from St. Louis to Kathmandu?

You are more likely to see cheaper flights to Kathmandu from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,652 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from St. Louis for as low as $1,487 on momondo.

When to book flights from St. Louis to Kathmandu

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Kathmandu according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Kathmandu (STL to KTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Kathmandu

Best Price Found	$850
Fastest flight time	33h 36m
Direct flights	None

The best one-way flight to Kathmandu from St. Louis in the past 72 hours is $850. The best round-trip flight deal from St. Louis to Kathmandu found on momondo in the last 72 hours is $1,371.

The fastest flight from St. Louis to Kathmandu takes 33h 36m

There are no direct flights from St. Louis to Kathmandu. There are no popular flight routes from St. Louis to Kathmandu.

Search flight deals

Frequently asked questions about flying from St. Louis to Kathmandu

How far is Lambert-St Louis to Kathmandu Tribhuvan by plane?
Kathmandu Tribhuvan is 7838.3 mi away from Lambert-St Louis. Typically, this will take 33h 36m by plane in normal conditions.
When did momondo last update prices for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?
Prices for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?
There are 3 operators available for flights from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport as of October 2026.
How old do you have to be to fly from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Kathmandu Tribhuvan Airport.
What documentation or ID do you need to fly to Kathmandu Tribhuvan Airport?
The necessary travel and health documents for your Kathmandu Tribhuvan Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Kathmandu?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Kathmandu is Qatar Airways, representing 87% of all bookings. The subsequent popular airlines are Cathay Pacific at 8% and Turkish Airlines at 5%.

Best airlines flying from St. Louis to Kathmandu

Compare and see reviews for airlines that fly from St. Louis to Kathmandu with momondo

Airline	Rating	Free Cancellation	Price
Qatar Airways	PriceFrom $1,257	Free Cancellation	Rating 7.3 3,712 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,295	Free Cancellation	Rating 7.6 1,534 reviews	Search Cathay Pacific flights
Turkish Airlines	PriceFrom $1,430	Free Cancellation	Rating 7.4 4,461 reviews	Search Turkish Airlines flights

Nagarkot

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Kathmandu?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kathmandu from St. Louis.

Can I find flights from St. Louis to Kathmandu with flexible booking policies on momondo?

momondo does allow users to show only those flights to Kathmandu from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Kathmandu?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Kathmandu from St. Louis.

I’m not ready to book a flight from St. Louis to Kathmandu right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Kathmandu now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Kathmandu and let you know when they change.

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Cheap flights from St. Louis to Kathmandu from $850

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kathmandu departing on 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets

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How to get the cheapest flight ticket from St. Louis to Kathmandu

What is the cheapest month to fly to Kathmandu?

How far in advance should I book a flight from St. Louis to Kathmandu?

What is the cheapest airline that flies from Lambert-St Louis to Kathmandu Tribhuvan?

What airlines fly to Kathmandu?

When to book flights from St. Louis to Kathmandu

Cheap St. Louis to Kathmandu (STL to KTM) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from St. Louis to Kathmandu

Best airlines flying from St. Louis to Kathmandu

Compare and see reviews for airlines that fly from St. Louis to Kathmandu with momondo

Traveling to a place near Kathmandu?

Why use momondo?

An easier way to manage your Kathmandu trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Nepal

Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Kathmandu

List of cabin classes available on flights landing in Kathmandu. Availability may vary depending on flight origin and airline.

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