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Cheap flights from St. Louis to Kathmandu from $523

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 3/24. 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
6:36 am - 9:45 pm
STL
-
KTM
52h 24m
2 stops
Cathay Pacific Logo
11:00 pm - 11:08 pm
KTM
-
STL
34h 53m
2 stops
$1,277Cathay Pacific
Sat, Aug 1 - Wed, Sep 2
Multiple Airlines Logo
7:00 am - 5:00 pm
STL
-
KTM
47h 15m
2 stops
Multiple Airlines Logo
6:15 pm - 7:36 pm
KTM
-
STL
36h 06m
2 stops
$1,333Multiple Airlines
Mon, Apr 27 - Thu, Jun 11
Multiple Airlines Logo
7:00 am - 5:00 pm
STL
-
KTM
47h 15m
2 stops
Multiple Airlines Logo
6:15 pm - 7:36 pm
KTM
-
STL
36h 06m
2 stops
$1,334Multiple Airlines
Mon, Apr 27 - Thu, Jun 11
Multiple Airlines Logo
7:00 am - 4:25 pm
STL
-
KTM
46h 40m
2 stops
Multiple Airlines Logo
10:05 am - 10:24 pm
KTM
-
STL
47h 04m
2 stops
$1,336Multiple Airlines
Tue, Mar 24 - Tue, Apr 7
Multiple Airlines Logo
4:46 pm - 5:00 pm
STL
-
KTM
61h 29m
2 stops
Multiple Airlines Logo
10:55 am - 11:54 pm
KTM
-
STL
47h 44m
2 stops
$1,363Multiple Airlines
Thu, May 7 - Wed, May 20
Multiple Airlines Logo
7:00 am - 5:00 pm
STL
-
KTM
47h 15m
2 stops
Multiple Airlines Logo
6:15 pm - 9:37 pm
KTM
-
STL
38h 07m
2 stops
$1,379Multiple Airlines
Thu, May 7 - Sun, Jun 7
Qatar Airways Logo
7:00 am - 5:50 pm
STL
-
KTM
48h 05m
2 stops
Qatar Airways Logo
10:55 am - 7:30 pm
KTM
-
STL
43h 20m
2 stops
$1,453Qatar Airways
Wed, Mar 25 - Mon, Apr 27
Cathay Pacific Logo
7:23 am - 9:45 pm
STL
-
KTM
51h 37m
2 stops
Cathay Pacific Logo
11:00 pm - 7:14 pm
KTM
-
STL
30h 59m
2 stops
$1,463Cathay Pacific
Mon, Aug 17 - Tue, Sep 1
Multiple Airlines Logo
3:50 pm - 5:00 pm
STL
-
KTM
62h 25m
2 stops
Multiple Airlines Logo
6:15 pm - 3:08 pm
KTM
-
STL
31h 38m
2 stops
$1,471Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
7:00 am - 4:25 pm
STL
-
KTM
46h 40m
2 stops
Multiple Airlines Logo
6:15 pm - 3:08 pm
KTM
-
STL
31h 38m
2 stops
$1,489Multiple Airlines
Tue, Mar 24 - Tue, Apr 28

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Mar 25
STL7:00 amLambert-St Louis
48h 05m
2 stops
KTM5:50 pmKathmandu Tribhuvan
Apr 27
KTM10:55 amKathmandu Tribhuvan
43h 20m
2 stops
STL7:30 pmLambert-St Louis
$1,453
Qatar Airways
Mar 24
STL7:00 amLambert-St Louis
46h 40m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Apr 26
KTM10:55 amKathmandu Tribhuvan
41h 11m
2 stops
STL5:21 pmLambert-St Louis
$1,498
Qatar Airways
May 7
STL12:27 pmLambert-St Louis
32h 43m
2 stops
KTM7:55 amKathmandu Tribhuvan
May 20
KTM6:15 pmKathmandu Tribhuvan
33h 03m
2 stops
STL4:33 pmLambert-St Louis
$1,501

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Aug 1
STL6:36 amLambert-St Louis
52h 24m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Sep 2
KTM11:00 pmKathmandu Tribhuvan
34h 53m
2 stops
STL11:08 pmLambert-St Louis
$1,277
Cathay Pacific
Aug 17
STL7:23 amLambert-St Louis
51h 37m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Sep 1
KTM11:00 pmKathmandu Tribhuvan
30h 59m
2 stops
STL7:14 pmLambert-St Louis
$1,463
Cathay Pacific
Mar 22
STL10:33 amLambert-St Louis
48h 12m
2 stops
KTM9:30 pmKathmandu Tribhuvan
May 1
KTM11:00 pmKathmandu Tribhuvan
35h 42m
2 stops
STL11:57 pmLambert-St Louis
$2,305

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 March 10, 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

Cheapest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 8/1

6:36 am-9:45 pm

2 stops52h 24m

Kathmandu Tribhuvan

Wed 9/2

11:00 pm-11:08 pm

2 stops34h 53m

$1,277

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 4/27

7:00 am-5:00 pm

2 stops47h 15m

Kathmandu Tribhuvan

Thu 6/11

6:15 pm-7:36 pm

2 stops36h 06m

$1,333

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 4/27

7:00 am-5:00 pm

2 stops47h 15m

Kathmandu Tribhuvan

Thu 6/11

6:15 pm-7:36 pm

2 stops36h 06m

$1,334

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 3/24

7:00 am-4:25 pm

2 stops46h 40m

Kathmandu Tribhuvan

Tue 4/7

10:05 am-10:24 pm

2 stops47h 04m

$1,336

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 5/7

4:46 pm-5:00 pm

2 stops61h 29m

Kathmandu Tribhuvan

Wed 5/20

10:55 am-11:54 pm

2 stops47h 44m

$1,363

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 5/7

7:00 am-5:00 pm

2 stops47h 15m

Kathmandu Tribhuvan

Sun 6/7

6:15 pm-9:37 pm

2 stops38h 07m

$1,379

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 3/25

7:00 am-5:50 pm

2 stops48h 05m

Kathmandu Tribhuvan

Mon 4/27

10:55 am-7:30 pm

2 stops43h 20m

$1,453

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 8/17

7:23 am-9:45 pm

2 stops51h 37m

Kathmandu Tribhuvan

Tue 9/1

11:00 pm-7:14 pm

2 stops30h 59m

$1,463

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 4/21

3:50 pm-5:00 pm

2 stops62h 25m

Kathmandu Tribhuvan

Tue 4/28

6:15 pm-3:08 pm

2 stops31h 38m

$1,471
Quickest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 3/24

7:00 am-4:25 pm

2 stops46h 40m

Kathmandu Tribhuvan

Tue 4/28

6:15 pm-3:08 pm

2 stops31h 38m

$1,489

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 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

35h 32m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 35h 32m
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 35h 32m 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 $1,218Free CancellationRating
7.4
3,744 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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