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Cheap flights from St. Louis to Kathmandu from $821

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 6/1. 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 - 6:14 pm
KTM
-
STL
31h 04m2 stops
$1,250Cathay Pacific
Thu, Jan 29 - Thu, Feb 5
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
$1,277Cathay 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
2:06 pm - 4:25 pm
STL
-
KTM
38h 34m2 stops
Qatar Airways Logo
5:40 pm - 6:16 pm
KTM
-
STL
36h 21m2 stops
$1,452Qatar Airways
Mon, Jan 5 - Mon, Jan 19
Qatar Airways Logo
5:05 am - 5:50 pm
STL
-
KTM
49h 00m2 stops
Qatar Airways Logo
5:40 pm - 10:44 pm
KTM
-
STL
40h 49m2 stops
$1,478Qatar Airways
Wed, Dec 31 - Mon, Jan 19
Qatar Airways Logo
3:54 pm - 7:55 am
STL
-
KTM
28h 16m2 stops
Qatar Airways Logo
7:05 pm - 7:29 pm
KTM
-
STL
36h 09m2 stops
$1,524Qatar Airways
Sat, Jan 31 - Sat, Feb 7
Multiple Airlines Logo
4:05 pm - 1:30 pm
STL
-
KTM
33h 40m3 stops
Multiple Airlines Logo
12:25 am - 11:59 pm
KTM
-
STL
35h 19m3 stops
$2,133Multiple Airlines
Thu, Jan 29 - Wed, Feb 4
Multiple Airlines Logo
4:05 pm - 1:30 pm
STL
-
KTM
33h 40m3 stops
Multiple Airlines Logo
10:55 pm - 3:29 pm
KTM
-
STL
28h 19m2 stops
$2,394Multiple Airlines
Thu, Jan 29 - Thu, Feb 5
Qatar Airways Logo
3:34 pm - 4:25 pm
STL
-
KTM
37h 06m2 stops
Qatar Airways Logo
7:05 pm - 5:51 pm
KTM
-
STL
34h 31m2 stops
$2,709Qatar Airways
Sat, Dec 20 - Mon, Dec 22
Multiple Airlines Logo
3:50 pm - 6:35 am
STL
-
KTM
27h 00m2 stops
Multiple Airlines Logo
9:05 pm - 9:13 pm
KTM
-
STL
35h 53m3 stops
$3,062Multiple Airlines
Wed, Dec 31 - Mon, Jan 19

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Dec 31
STL5:05 amLambert-St Louis
49h 00m
2 stops
KTM5:50 pmKathmandu Tribhuvan
Jan 19
KTM5:40 pmKathmandu Tribhuvan
40h 49m
2 stops
STL10:44 pmLambert-St Louis
$1,478
Find similar
Qatar Airways
Jan 31
STL3:54 pmLambert-St Louis
28h 16m
2 stops
KTM7:55 amKathmandu Tribhuvan
Feb 7
KTM7:05 pmKathmandu Tribhuvan
36h 09m
2 stops
STL7:29 pmLambert-St Louis
$1,524
Find similar
Qatar Airways
May 24
STL6:31 amLambert-St Louis
38h 39m
2 stops
KTM7:55 amKathmandu Tribhuvan
Jul 12
KTM6:00 pmKathmandu Tribhuvan
33h 45m
2 stops
STL5:00 pmLambert-St Louis
$1,741
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 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
$1,277
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
Cathay Pacific
Jun 15
STL6:30 amLambert-St Louis
52h 30m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 15
KTM11:00 pmKathmandu Tribhuvan
34h 17m
2 stops
STL10:32 pmLambert-St Louis
$1,940
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 18, 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

Thu 1/29

7:04 am-9:30 pm

2 stops50h 41m

Kathmandu Tribhuvan

Thu 2/5

10:55 pm-6:14 pm

2 stops31h 04m

$1,250

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

$1,277

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 1/5

2:06 pm-4:25 pm

2 stops38h 34m

Kathmandu Tribhuvan

Mon 1/19

5:40 pm-6:16 pm

2 stops36h 21m

$1,452

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 12/31

5:05 am-5:50 pm

2 stops49h 00m

Kathmandu Tribhuvan

Mon 1/19

5:40 pm-10:44 pm

2 stops40h 49m

$1,478

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 1/31

3:54 pm-7:55 am

2 stops28h 16m

Kathmandu Tribhuvan

Sat 2/7

7:05 pm-7:29 pm

2 stops36h 09m

$1,524

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 1/29

4:05 pm-1:30 pm

3 stops33h 40m

Kathmandu Tribhuvan

Wed 2/4

12:25 am-11:59 pm

3 stops35h 19m

$2,133

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 1/29

4:05 pm-1:30 pm

3 stops33h 40m

Kathmandu Tribhuvan

Thu 2/5

10:55 pm-3:29 pm

2 stops28h 19m

$2,394

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 12/20

3:34 pm-4:25 pm

2 stops37h 06m

Kathmandu Tribhuvan

Mon 12/22

7:05 pm-5:51 pm

2 stops34h 31m

$2,709

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 12/31

3:50 pm-6:35 am

2 stops27h 00m

Kathmandu Tribhuvan

Mon 1/19

9:05 pm-9:13 pm

3 stops35h 53m

$3,062

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 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

25h 26m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 25h 26m
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 25h 26m 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
3,686 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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