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Cheap flights from St. Louis to Kathmandu from $504

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 11/27. 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

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Cathay Pacific Logo
6:00 am - 9:30 pmSTL-KTM
51h 45m2 stops
Cathay Pacific Logo
10:55 pm - 11:48 pmKTM-STL
36h 38m2 stops
$1,177Cathay Pacific
Find Deal
Tue, Jan 20 - Tue, Mar 3
Cathay Pacific Logo
11:05 am - 9:30 pmSTL-KTM
46h 40m2 stops
Cathay Pacific Logo
10:55 pm - 6:16 pmKTM-STL
31h 06m2 stops
$1,240Cathay Pacific
Find Deal
Thu, Jan 22 - Mon, Jan 26
Cathay Pacific Logo
7:58 pm - 9:30 pmSTL-KTM
61h 47m2 stops
Cathay Pacific Logo
10:55 pm - 11:57 pmKTM-STL
36h 47m2 stops
$1,267Cathay Pacific
Find Deal
Sun, Nov 30 - Wed, Dec 10
Cathay Pacific Logo
8:40 am - 9:30 pmSTL-KTM
49h 05m2 stops
Cathay Pacific Logo
10:55 pm - 11:57 pmKTM-STL
36h 47m2 stops
$1,311Cathay Pacific
Find Deal
Fri, Nov 28 - Wed, Dec 10
Qatar Airways Logo
5:30 am - 7:55 amSTL-KTM
38h 40m2 stops
Qatar Airways Logo
9:10 am - 11:59 pmKTM-STL
49h 34m2 stops
$1,487Qatar Airways
Find Deal
Sun, Dec 28 - Wed, Mar 11
Qatar Airways Logo
2:54 pm - 4:25 pmSTL-KTM
37h 46m2 stops
Qatar Airways Logo
5:40 pm - 11:59 pmKTM-STL
42h 04m2 stops
$1,577Qatar Airways
Find Deal
Thu, Dec 4 - Thu, Dec 11
Qatar Airways Logo
11:50 am - 4:25 pmSTL-KTM
40h 50m2 stops
Qatar Airways Logo
9:10 am - 5:51 pmKTM-STL
44h 26m2 stops
$1,720Qatar Airways
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Mon, Dec 8 - Fri, Dec 26
Emirates Logo
3:11 pm - 8:20 amSTL-KTM
29h 24m2 stops
Emirates Logo
12:30 am - 9:00 pmKTM-STL
32h 15m2 stops
$1,796Emirates
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Tue, Jan 20 - Mon, Mar 2
Emirates Logo
3:11 pm - 8:20 amSTL-KTM
29h 24m2 stops
Emirates Logo
12:30 am - 9:00 pmKTM-STL
32h 15m2 stops
$1,801Emirates
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Tue, Jan 20 - Mon, Mar 2
Multiple Airlines Logo
3:50 pm - 6:35 amSTL-KTM
27h 00m2 stops
Multiple Airlines Logo
10:20 pm - 1:55 pmKTM-STL
27h 20m2 stops
$2,110Multiple Airlines
Find Deal
Wed, Dec 10 - Tue, Jan 13

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jan 20
STL6:00 amLambert-St Louis
51h 45m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Mar 3
KTM10:55 pmKathmandu Tribhuvan
36h 38m
2 stops
STL11:48 pmLambert-St Louis
$1,177
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
$1,240
Find similar
Cathay Pacific
Nov 30
STL7:58 pmLambert-St Louis
61h 47m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Dec 10
KTM10:55 pmKathmandu Tribhuvan
36h 47m
2 stops
STL11:57 pmLambert-St Louis
$1,267
Find similar

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Dec 28
STL5:30 amLambert-St Louis
38h 40m
2 stops
KTM7:55 amKathmandu Tribhuvan
Mar 11
KTM9:10 amKathmandu Tribhuvan
49h 34m
2 stops
STL11:59 pmLambert-St Louis
$1,487
Find similar
Qatar Airways
Dec 4
STL2:54 pmLambert-St Louis
37h 46m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Dec 11
KTM5:40 pmKathmandu Tribhuvan
42h 04m
2 stops
STL11:59 pmLambert-St Louis
$1,577
Find similar
Qatar Airways
Dec 8
STL11:50 amLambert-St Louis
40h 50m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Dec 26
KTM9:10 amKathmandu Tribhuvan
44h 26m
2 stops
STL5:51 pmLambert-St Louis
$1,720
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 November 17, 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

Tue 1/20

6:00 am-9:30 pm

2 stops51h 45m

Kathmandu Tribhuvan

Tue 3/3

10:55 pm-11:48 pm

2 stops36h 38m

$1,177

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

$1,240

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 11/30

7:58 pm-9:30 pm

2 stops61h 47m

Kathmandu Tribhuvan

Wed 12/10

10:55 pm-11:57 pm

2 stops36h 47m

$1,267

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 11/28

8:40 am-9:30 pm

2 stops49h 05m

Kathmandu Tribhuvan

Wed 12/10

10:55 pm-11:57 pm

2 stops36h 47m

$1,311

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 12/28

5:30 am-7:55 am

2 stops38h 40m

Kathmandu Tribhuvan

Wed 3/11

9:10 am-11:59 pm

2 stops49h 34m

$1,487

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 12/4

2:54 pm-4:25 pm

2 stops37h 46m

Kathmandu Tribhuvan

Thu 12/11

5:40 pm-11:59 pm

2 stops42h 04m

$1,577

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 12/8

11:50 am-4:25 pm

2 stops40h 50m

Kathmandu Tribhuvan

Fri 12/26

9:10 am-5:51 pm

2 stops44h 26m

$1,720

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

3:11 pm-8:20 am

2 stops29h 24m

Kathmandu Tribhuvan

Mon 3/2

12:30 am-9:00 pm

2 stops32h 15m

$1,796

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

3:11 pm-8:20 am

2 stops29h 24m

Kathmandu Tribhuvan

Mon 3/2

12:30 am-9:00 pm

2 stops32h 15m

$1,801

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 12/10

3:50 pm-6:35 am

2 stops27h 00m

Kathmandu Tribhuvan

Tue 1/13

10:20 pm-1:55 pm

2 stops27h 20m

$2,110

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 $1,338.

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

Direct flights

None
There are no direct flights from St. Louis to Kathmandu. There are no popular flight routes from St. Louis to Kathmandu.
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  • 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 35m 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 $1,140Free CancellationRating
7.4
3,664 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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