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Cheap flights from St. Louis to Kathmandu from $1,289

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Kathmandu departing on 4/30. 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.
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m2 stops
Qatar Airways Logo
6:00 pm - 6:30 pm
KTM
-
STL
35h 15m2 stops
$1,289Qatar Airways
Thu, Apr 30 - Tue, Jun 2
Multiple Airlines Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m2 stops
Multiple Airlines Logo
6:00 pm - 11:59 pm
KTM
-
STL
40h 44m2 stops
$1,315Multiple Airlines
Fri, Apr 10 - Sun, May 10
Cathay Pacific Logo
6:11 pm - 9:45 pm
STL
-
KTM
40h 49m2 stops
Cathay Pacific Logo
11:00 pm - 12:41 pm
KTM
-
STL
48h 26m2 stops
$1,329Cathay Pacific
Thu, Apr 30 - Tue, Jun 2
Qatar Airways Logo
7:00 am - 4:25 pm
STL
-
KTM
45h 40m2 stops
Qatar Airways Logo
7:05 pm - 3:28 pm
KTM
-
STL
31h 08m2 stops
$1,332Qatar Airways
Thu, Feb 26 - Sat, Mar 14
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m2 stops
Qatar Airways Logo
6:00 pm - 5:03 pm
KTM
-
STL
33h 48m2 stops
$1,335Qatar Airways
Wed, Apr 29 - Tue, Jun 9
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m2 stops
Qatar Airways Logo
6:00 pm - 5:03 pm
KTM
-
STL
33h 48m2 stops
$1,342Qatar Airways
Thu, Apr 30 - Wed, Jun 10
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m2 stops
Qatar Airways Logo
6:00 pm - 4:33 pm
KTM
-
STL
33h 18m2 stops
$1,352Qatar Airways
Wed, Apr 29 - Wed, Jun 3
Qatar Airways Logo
12:11 pm - 7:55 am
STL
-
KTM
31h 59m2 stops
Qatar Airways Logo
7:05 pm - 11:48 pm
KTM
-
STL
40h 28m2 stops
$1,357Qatar Airways
Tue, Jan 20 - Tue, Mar 3
Cathay Pacific Logo
12:11 pm - 9:45 pm
STL
-
KTM
46h 49m2 stops
Cathay Pacific Logo
11:00 pm - 8:26 pm
KTM
-
STL
32h 11m2 stops
$1,358Cathay Pacific
Thu, Apr 30 - Mon, Jun 1
Qatar Airways Logo
6:11 pm - 7:55 am
STL
-
KTM
26h 59m2 stops
Qatar Airways Logo
6:00 pm - 5:03 pm
KTM
-
STL
33h 48m2 stops
$1,387Qatar Airways
Wed, Apr 29 - Tue, Jun 2

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Apr 30
STL7:00 amLambert-St Louis
47h 00m
2 stops
KTM4:45 pmKathmandu Tribhuvan
Jun 2
KTM6:00 pmKathmandu Tribhuvan
35h 15m
2 stops
STL6:30 pmLambert-St Louis
$1,289
Qatar Airways
Feb 26
STL7:00 amLambert-St Louis
45h 40m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Mar 14
KTM7:05 pmKathmandu Tribhuvan
31h 08m
2 stops
STL3:28 pmLambert-St Louis
$1,332
Qatar Airways
Apr 29
STL7:00 amLambert-St Louis
47h 00m
2 stops
KTM4:45 pmKathmandu Tribhuvan
Jun 9
KTM6:00 pmKathmandu Tribhuvan
33h 48m
2 stops
STL5:03 pmLambert-St Louis
$1,335

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Apr 30
STL6:11 pmLambert-St Louis
40h 49m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jun 2
KTM11:00 pmKathmandu Tribhuvan
48h 26m
2 stops
STL12:41 pmLambert-St Louis
$1,329
Cathay Pacific
Apr 30
STL12:11 pmLambert-St Louis
46h 49m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jun 1
KTM11:00 pmKathmandu Tribhuvan
32h 11m
2 stops
STL8:26 pmLambert-St Louis
$1,358
Cathay Pacific
May 1
STL6:11 pmLambert-St Louis
40h 49m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jun 1
KTM11:00 pmKathmandu Tribhuvan
32h 11m
2 stops
STL8:26 pmLambert-St Louis
$1,446

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 January 11, 2026.
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 4/30

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Tue 6/2

6:00 pm-6:30 pm

2 stops35h 15m

$1,289

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 4/10

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Sun 5/10

6:00 pm-11:59 pm

2 stops40h 44m

$1,315

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/30

6:11 pm-9:45 pm

2 stops40h 49m

Kathmandu Tribhuvan

Tue 6/2

11:00 pm-12:41 pm

2 stops48h 26m

$1,329

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 2/26

7:00 am-4:25 pm

2 stops45h 40m

Kathmandu Tribhuvan

Sat 3/14

7:05 pm-3:28 pm

2 stops31h 08m

$1,332

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 4/29

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Tue 6/9

6:00 pm-5:03 pm

2 stops33h 48m

$1,335

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/30

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Wed 6/10

6:00 pm-5:03 pm

2 stops33h 48m

$1,342

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 4/29

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Wed 6/3

6:00 pm-4:33 pm

2 stops33h 18m

$1,352

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

12:11 pm-7:55 am

2 stops31h 59m

Kathmandu Tribhuvan

Tue 3/3

7:05 pm-11:48 pm

2 stops40h 28m

$1,357

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/30

12:11 pm-9:45 pm

2 stops46h 49m

Kathmandu Tribhuvan

Mon 6/1

11:00 pm-8:26 pm

2 stops32h 11m

$1,358

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 4/29

6:11 pm-7:55 am

2 stops26h 59m

Kathmandu Tribhuvan

Tue 6/2

6:00 pm-5:03 pm

2 stops33h 48m

$1,387

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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.

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 45m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 26h 45m
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 45m 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 $1,249Free CancellationRating
7.4
3,708 reviews
Search Qatar Airways flights

Traveling to a place near Kathmandu?

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