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Cheap flights from St. Louis to Kathmandu from $612

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 3/25. 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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Find the cheapest flights from St. Louis to Kathmandu

Cheap round-trip flights

Enter your travel dates to find the best prices.
Cathay Pacific Logo
7:04 am - 9:30 pm
STL
-
KTM
50h 41m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
36h 38m2 stops
$1,193Cathay Pacific
Mon, Feb 2 - Mon, Feb 16
Cathay Pacific Logo
7:04 am - 9:30 pm
STL
-
KTM
50h 41m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
36h 38m2 stops
$1,205Cathay Pacific
Mon, Feb 2 - Tue, Feb 17
Cathay Pacific Logo
5:04 pm - 9:30 pm
STL
-
KTM
40h 41m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
36h 38m2 stops
$1,234Cathay Pacific
Tue, Feb 3 - Tue, Feb 17
Cathay Pacific Logo
7:04 am - 9:30 pm
STL
-
KTM
50h 41m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
60h 38m2 stops
$1,249Cathay Pacific
Mon, Feb 2 - Sun, Feb 15
Cathay Pacific Logo
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
36h 38m2 stops
$1,255Cathay Pacific
Sun, Feb 1 - Mon, Feb 16
Cathay Pacific Logo
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
36h 38m2 stops
$1,271Cathay Pacific
Tue, Jan 20 - Tue, Mar 3
Cathay Pacific Logo
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
36h 38m2 stops
$1,275Cathay Pacific
Tue, Jan 20 - Tue, Mar 3
Multiple Airlines Logo
2:50 pm - 4:25 pm
STL
-
KTM
61h 50m2 stops
Multiple Airlines Logo
5:40 pm - 11:59 pm
KTM
-
STL
41h 04m2 stops
$1,280Multiple Airlines
Sun, Feb 8 - Sun, Mar 15
Cathay Pacific Logo
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pm
KTM
-
STL
60h 38m2 stops
$1,299Cathay Pacific
Sun, Feb 1 - Sun, Feb 15
Qatar Airways Logo
7:00 am - 4:25 pm
STL
-
KTM
46h 40m2 stops
Qatar Airways Logo
6:00 pm - 3:24 pm
KTM
-
STL
32h 09m2 stops
$1,335Qatar Airways
Wed, Mar 11 - Tue, Mar 31

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Mar 11
STL7:00 amLambert-St Louis
46h 40m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Mar 31
KTM6:00 pmKathmandu Tribhuvan
32h 09m
2 stops
STL3:24 pmLambert-St Louis
$1,335
Find similar
Qatar Airways
Feb 8
STL5:20 pmLambert-St Louis
26h 50m
2 stops
KTM7:55 amKathmandu Tribhuvan
Mar 15
KTM5:40 pmKathmandu Tribhuvan
41h 04m
2 stops
STL11:59 pmLambert-St Louis
$1,351
Find similar
Qatar Airways
Jan 5
STL7:00 amLambert-St Louis
45h 40m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Jan 19
KTM7:05 pmKathmandu Tribhuvan
39h 24m
2 stops
STL10:44 pmLambert-St Louis
$1,439
Find similar

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Feb 2
STL7:04 amLambert-St Louis
50h 41m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Feb 16
KTM10:55 pmKathmandu Tribhuvan
36h 38m
2 stops
STL11:48 pmLambert-St Louis
$1,193
Find similar
Cathay Pacific
Feb 2
STL7:04 amLambert-St Louis
50h 41m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Feb 17
KTM10:55 pmKathmandu Tribhuvan
36h 38m
2 stops
STL11:48 pmLambert-St Louis
$1,205
Find similar
Cathay Pacific
Feb 3
STL5:04 pmLambert-St Louis
40h 41m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Feb 17
KTM10:55 pmKathmandu Tribhuvan
36h 38m
2 stops
STL11:48 pmLambert-St Louis
$1,234
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from St. Louis to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 2/2

7:04 am-9:30 pm

2 stops50h 41m

Kathmandu Tribhuvan

Mon 2/16

10:55 pm-11:48 pm

2 stops36h 38m

$1,193

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 2/2

7:04 am-9:30 pm

2 stops50h 41m

Kathmandu Tribhuvan

Tue 2/17

10:55 pm-11:48 pm

2 stops36h 38m

$1,205

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 2/3

5:04 pm-9:30 pm

2 stops40h 41m

Kathmandu Tribhuvan

Tue 2/17

10:55 pm-11:48 pm

2 stops36h 38m

$1,234

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 2/2

7:04 am-9:30 pm

2 stops50h 41m

Kathmandu Tribhuvan

Sun 2/15

10:55 pm-11:48 pm

2 stops60h 38m

$1,249

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 2/1

11:05 am-9:30 pm

2 stops46h 40m

Kathmandu Tribhuvan

Mon 2/16

10:55 pm-11:48 pm

2 stops36h 38m

$1,255

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

$1,271

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

$1,275

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 2/8

2:50 pm-4:25 pm

2 stops61h 50m

Kathmandu Tribhuvan

Sun 3/15

5:40 pm-11:59 pm

2 stops41h 04m

$1,280

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 2/1

11:05 am-9:30 pm

2 stops46h 40m

Kathmandu Tribhuvan

Sun 2/15

10:55 pm-11:48 pm

2 stops60h 38m

$1,299

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 3/11

7:00 am-4:25 pm

2 stops46h 40m

Kathmandu Tribhuvan

Tue 3/31

6:00 pm-3:24 pm

2 stops32h 09m

$1,335

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Kathmandu from

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

What is the cheapest month to fly to Kathmandu?

The month of July is another great option to travel to Kathmandu, with average flight prices from St. Louis averaging around $1,390.

What is the cheapest day to depart on your flight to Kathmandu?

According to our data, Saturday is the cheapest day to fly to Kathmandu from St. Louis. The lowest ticket price found for a Saturday departure recently was $1,415. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from St. Louis to Kathmandu on a Thursday will generally be more expensive and average around $1,655. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Kathmandu?

In the afternoon is the cheapest time of day to fly from St. Louis to Kathmandu when you can find flight prices for as low as $1,515. Flying to Kathmandu in the afternoon is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,593.

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

Fastest flight time

26h 50m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 26h 50m
There are no direct flights from St. Louis to Kathmandu. There are no popular flight routes from St. Louis to Kathmandu.
Search flight deals

  • 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 26h 50m 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?

  • 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?

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 AirwaysPriceFrom $1,211Free CancellationRating
7.4
3,677 reviews
Search Qatar Airways flights

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
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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