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Cheap flights from St. Louis to Kathmandu from $759

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 12/31. 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.
Multiple Airlines Logo
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Multiple Airlines Logo
10:55 pm - 9:15 pm
KTM
-
STL
34h 05m2 stops
$1,248Multiple Airlines
Sun, Jan 18 - Mon, Feb 2
Qatar Airways Logo
7:00 am - 4:25 pm
STL
-
KTM
45h 40m2 stops
Qatar Airways Logo
7:05 pm - 11:59 pm
KTM
-
STL
39h 39m2 stops
$1,278Qatar Airways
Wed, Feb 25 - Sat, Mar 14
Multiple Airlines Logo
2:50 pm - 5:50 pm
STL
-
KTM
63h 15m2 stops
Multiple Airlines Logo
5:40 pm - 11:59 pm
KTM
-
STL
41h 04m2 stops
$1,280Multiple Airlines
Mon, Feb 9 - 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
36h 38m2 stops
$1,281Cathay Pacific
Tue, Jan 20 - Tue, Mar 3
Multiple Airlines Logo
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Multiple Airlines Logo
10:55 pm - 11:48 pm
KTM
-
STL
36h 38m2 stops
$1,283Multiple Airlines
Tue, Jan 20 - Tue, Mar 3
Multiple Airlines Logo
2:50 pm - 5:50 pm
STL
-
KTM
63h 15m2 stops
Multiple Airlines Logo
7:05 pm - 11:59 pm
KTM
-
STL
39h 39m2 stops
$1,341Multiple Airlines
Mon, Feb 9 - Sat, Mar 14
Qatar Airways Logo
5:04 pm - 4:25 pm
STL
-
KTM
35h 36m2 stops
Qatar Airways Logo
5:40 pm - 11:59 pm
KTM
-
STL
41h 04m2 stops
$1,351Qatar Airways
Tue, Feb 10 - Sun, Mar 15
Cathay Pacific Logo
6:00 pm - 9:45 pm
STL
-
KTM
41h 00m2 stops
Cathay Pacific Logo
11:00 pm - 9:48 pm
KTM
-
STL
33h 33m2 stops
$1,399Cathay Pacific
Thu, Apr 30 - Mon, May 4
Qatar Airways Logo
7:00 am - 4:25 pm
STL
-
KTM
45h 40m2 stops
Qatar Airways Logo
7:05 pm - 10:44 pm
KTM
-
STL
39h 24m2 stops
$1,439Qatar Airways
Mon, Jan 5 - Mon, Jan 19
Qatar Airways Logo
6:02 pm - 5:50 pm
STL
-
KTM
36h 03m2 stops
Qatar Airways Logo
5:40 pm - 11:56 pm
KTM
-
STL
41h 01m2 stops
$1,442Qatar Airways
Thu, Feb 5 - Tue, Mar 17

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jan 20
STL11:05 amLambert-St Louis
46h 40m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Mar 3
KTM10:55 pmKathmandu Tribhuvan
36h 38m
2 stops
STL11:48 pmLambert-St Louis
$1,281
Find similar
Cathay Pacific
Apr 30
STL6:00 pmLambert-St Louis
41h 00m
2 stops
KTM9:45 pmKathmandu Tribhuvan
May 4
KTM11:00 pmKathmandu Tribhuvan
33h 33m
2 stops
STL9:48 pmLambert-St Louis
$1,399
Find similar

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Feb 25
STL7:00 amLambert-St Louis
45h 40m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Mar 14
KTM7:05 pmKathmandu Tribhuvan
39h 39m
2 stops
STL11:59 pmLambert-St Louis
$1,278
Find similar
Qatar Airways
Feb 10
STL5:04 pmLambert-St Louis
35h 36m
2 stops
KTM4:25 pmKathmandu 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

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 9, 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

Sun 1/18

11:05 am-9:30 pm

2 stops46h 40m

Kathmandu Tribhuvan

Mon 2/2

10:55 pm-9:15 pm

2 stops34h 05m

$1,248

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 2/25

7:00 am-4:25 pm

2 stops45h 40m

Kathmandu Tribhuvan

Sat 3/14

7:05 pm-11:59 pm

2 stops39h 39m

$1,278

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 2/9

2:50 pm-5:50 pm

2 stops63h 15m

Kathmandu Tribhuvan

Sun 3/15

5:40 pm-11:59 pm

2 stops41h 04m

$1,280

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

$1,281

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

$1,283

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 2/9

2:50 pm-5:50 pm

2 stops63h 15m

Kathmandu Tribhuvan

Sat 3/14

7:05 pm-11:59 pm

2 stops39h 39m

$1,341

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 2/10

5:04 pm-4:25 pm

2 stops35h 36m

Kathmandu Tribhuvan

Sun 3/15

5:40 pm-11:59 pm

2 stops41h 04m

$1,351

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/30

6:00 pm-9:45 pm

2 stops41h 00m

Kathmandu Tribhuvan

Mon 5/4

11:00 pm-9:48 pm

2 stops33h 33m

$1,399

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 1/5

7:00 am-4:25 pm

2 stops45h 40m

Kathmandu Tribhuvan

Mon 1/19

7:05 pm-10:44 pm

2 stops39h 24m

$1,439

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 2/5

6:02 pm-5:50 pm

2 stops36h 03m

Kathmandu Tribhuvan

Tue 3/17

5:40 pm-11:56 pm

2 stops41h 01m

$1,442

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 typical price of a round-trip flight between St. Louis and Kathmandu?

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

27h 34m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 27h 34m
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 29h 16m 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
3,676 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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