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Cheap flights from St. Louis to Kathmandu from $953

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 12/26. 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
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Cathay Pacific Logo
10:55 pm - 6:16 pm
KTM
-
STL
31h 06m2 stops
$1,196Cathay Pacific
Mon, Jan 19 - Mon, Jan 26
Cathay Pacific Logo
11:05 am - 9:30 pm
STL
-
KTM
46h 40m2 stops
Cathay Pacific Logo
10:55 pm - 6:16 pm
KTM
-
STL
31h 06m2 stops
$1,239Cathay Pacific
Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
4:09 pm - 9:45 pm
STL
-
KTM
42h 51m2 stops
Multiple Airlines Logo
11:00 pm - 9:48 pm
KTM
-
STL
33h 33m2 stops
$1,248Multiple Airlines
Sat, Apr 18 - Mon, May 18
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
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m2 stops
Qatar Airways Logo
6:00 pm - 9:48 pm
KTM
-
STL
38h 33m2 stops
$1,353Qatar Airways
Thu, Apr 2 - Sat, Apr 18
Multiple Airlines Logo
6:38 am - 9:30 pm
STL
-
KTM
52h 07m2 stops
Multiple Airlines Logo
11:00 pm - 11:59 pm
KTM
-
STL
35h 44m2 stops
$1,374Multiple Airlines
Tue, Mar 10 - Fri, Apr 3
Qatar Airways Logo
2:32 pm - 7:55 am
STL
-
KTM
30h 38m2 stops
Qatar Airways Logo
6:00 pm - 10:29 pm
KTM
-
STL
39h 14m2 stops
$1,441Qatar Airways
Sun, Mar 22 - Wed, Apr 8
Qatar Airways Logo
6:50 pm - 4:25 pm
STL
-
KTM
33h 50m2 stops
Qatar Airways Logo
5:40 pm - 11:52 pm
KTM
-
STL
40h 57m2 stops
$1,485Qatar Airways
Sun, Mar 1 - Sat, Mar 14
Qatar Airways Logo
2:24 pm - 7:55 am
STL
-
KTM
29h 46m2 stops
Qatar Airways Logo
7:05 pm - 11:52 pm
KTM
-
STL
39h 32m2 stops
$1,503Qatar Airways
Sun, Mar 1 - Sat, Mar 14

Turkish Airlines flights from St. Louis to Kathmandu

Our best Turkish Airlines deals on St. Louis to Kathmandu flight tickets
Turkish Airlines
Mar 1
STL6:55 pmLambert-St Louis
52h 30m
2 stops
KTM11:10 amKathmandu Tribhuvan
Mar 14
KTM12:35 pmKathmandu Tribhuvan
43h 17m
2 stops
STL9:07 pmLambert-St Louis
$1,887
Find similar
Turkish Airlines
Jun 21
STL5:18 pmLambert-St Louis
26h 02m
2 stops
KTM6:05 amKathmandu Tribhuvan
Jul 2
KTM7:30 amKathmandu Tribhuvan
41h 33m
2 stops
STL2:18 pmLambert-St Louis
$6,020
Find similar
Turkish Airlines
Jun 21
STL5:18 pmLambert-St Louis
26h 02m
2 stops
KTM6:05 amKathmandu Tribhuvan
Jul 2
KTM7:30 amKathmandu Tribhuvan
41h 33m
2 stops
STL2:18 pmLambert-St Louis
$6,022
Find similar

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jan 19
STL11:05 amLambert-St Louis
46h 40m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Jan 26
KTM10:55 pmKathmandu Tribhuvan
31h 06m
2 stops
STL6:16 pmLambert-St Louis
$1,196
Find similar
Cathay Pacific
Jan 22
STL11:05 amLambert-St Louis
46h 40m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Jan 26
KTM10:55 pmKathmandu Tribhuvan
31h 06m
2 stops
STL6:16 pmLambert-St Louis
$1,239
Find similar
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

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 23, 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 1/19

11:05 am-9:30 pm

2 stops46h 40m

Kathmandu Tribhuvan

Mon 1/26

10:55 pm-6:16 pm

2 stops31h 06m

$1,196

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 1/22

11:05 am-9:30 pm

2 stops46h 40m

Kathmandu Tribhuvan

Mon 1/26

10:55 pm-6:16 pm

2 stops31h 06m

$1,239

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 4/18

4:09 pm-9:45 pm

2 stops42h 51m

Kathmandu Tribhuvan

Mon 5/18

11:00 pm-9:48 pm

2 stops33h 33m

$1,248

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

Thu 4/2

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Sat 4/18

6:00 pm-9:48 pm

2 stops38h 33m

$1,353

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 3/10

6:38 am-9:30 pm

2 stops52h 07m

Kathmandu Tribhuvan

Fri 4/3

11:00 pm-11:59 pm

2 stops35h 44m

$1,374

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 3/22

2:32 pm-7:55 am

2 stops30h 38m

Kathmandu Tribhuvan

Wed 4/8

6:00 pm-10:29 pm

2 stops39h 14m

$1,441

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 3/1

6:50 pm-4:25 pm

2 stops33h 50m

Kathmandu Tribhuvan

Sat 3/14

5:40 pm-11:52 pm

2 stops40h 57m

$1,485

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 3/1

2:24 pm-7:55 am

2 stops29h 46m

Kathmandu Tribhuvan

Sat 3/14

7:05 pm-11:52 pm

2 stops39h 32m

$1,503

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 typical price of a round-trip flight between St. Louis and Kathmandu?

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 $1,387.

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

46h 40m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 46h 40m
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 46h 40m 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 $1,212Free CancellationRating
7.4
3,686 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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