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Cheap flights from St. Louis to Kathmandu from $886

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 5/25. 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
6:00 am - 9:50 am
STL
-
KTM
41h 05m
2 stops
Qatar Airways Logo
6:00 pm - 11:59 pm
KTM
-
STL
40h 44m
2 stops
$1,282Qatar Airways
Tue, Sep 15 - Tue, Oct 20
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Qatar Airways Logo
6:45 pm - 11:59 pm
KTM
-
STL
39h 59m
2 stops
$1,296Qatar Airways
Mon, Oct 5 - Wed, Oct 21
Qatar Airways Logo
7:00 am - 9:50 am
STL
-
KTM
40h 05m
2 stops
Qatar Airways Logo
9:35 am - 11:59 pm
KTM
-
STL
49h 09m
2 stops
$1,352Qatar Airways
Tue, Oct 20 - Wed, Oct 28
Multiple Airlines Logo
4:46 pm - 4:45 pm
STL
-
KTM
61h 14m
2 stops
Multiple Airlines Logo
7:10 pm - 11:54 pm
KTM
-
STL
39h 29m
2 stops
$1,397Multiple Airlines
Fri, May 8 - Sun, May 24
Qatar Airways Logo
7:00 am - 9:50 am
STL
-
KTM
40h 05m
2 stops
Qatar Airways Logo
6:45 pm - 11:59 pm
KTM
-
STL
39h 59m
2 stops
$1,427Qatar Airways
Tue, Oct 20 - Wed, Oct 28
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Qatar Airways Logo
6:45 pm - 3:50 pm
KTM
-
STL
32h 50m
2 stops
$1,430Qatar Airways
Tue, Oct 6 - Thu, Nov 5
Qatar Airways Logo
7:26 pm - 8:50 am
STL
-
KTM
26h 39m
2 stops
Qatar Airways Logo
10:05 am - 7:32 pm
KTM
-
STL
44h 12m
2 stops
$1,540Qatar Airways
Mon, Jul 13 - Tue, Aug 4
Qatar Airways Logo
3:33 pm - 9:50 am
STL
-
KTM
31h 32m
2 stops
Qatar Airways Logo
5:40 pm - 3:29 pm
KTM
-
STL
33h 34m
2 stops
$1,547Qatar Airways
Thu, Oct 15 - Mon, Nov 30
Multiple Airlines Logo
7:56 pm - 8:50 am
STL
-
KTM
50h 09m
2 stops
Multiple Airlines Logo
10:05 am - 1:52 pm
KTM
-
STL
62h 32m
2 stops
$1,554Multiple Airlines
Fri, Jun 19 - Sun, Jul 5
Qatar Airways Logo
9:41 am - 8:50 am
STL
-
KTM
36h 24m
2 stops
Qatar Airways Logo
10:05 am - 7:32 pm
KTM
-
STL
44h 12m
2 stops
$1,556Qatar Airways
Tue, Jul 14 - Tue, Aug 4

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Sep 15
STL6:00 amLambert-St Louis
41h 05m
2 stops
KTM9:50 amKathmandu Tribhuvan
Oct 20
KTM6:00 pmKathmandu Tribhuvan
40h 44m
2 stops
STL11:59 pmLambert-St Louis
$1,282
Qatar Airways
Oct 5
STL7:00 amLambert-St Louis
47h 00m
2 stops
KTM4:45 pmKathmandu Tribhuvan
Oct 21
KTM6:45 pmKathmandu Tribhuvan
39h 59m
2 stops
STL11:59 pmLambert-St Louis
$1,296
Qatar Airways
Oct 20
STL7:00 amLambert-St Louis
40h 05m
2 stops
KTM9:50 amKathmandu Tribhuvan
Oct 28
KTM9:35 amKathmandu Tribhuvan
49h 09m
2 stops
STL11:59 pmLambert-St Louis
$1,352

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jul 1
STL5:03 pmLambert-St Louis
65h 57m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 30
KTM11:00 pmKathmandu Tribhuvan
35h 44m
2 stops
STL11:59 pmLambert-St Louis
$2,061
Cathay Pacific
Jun 29
STL6:35 amLambert-St Louis
52h 25m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 16
KTM11:00 pmKathmandu Tribhuvan
35h 44m
2 stops
STL11:59 pmLambert-St Louis
$2,065
Cathay Pacific
May 2
STL12:27 pmLambert-St Louis
46h 33m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 1
KTM11:00 pmKathmandu Tribhuvan
31h 09m
2 stops
STL7:24 pmLambert-St Louis
$6,948

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 April 29, 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

Tue 9/15

6:00 am-9:50 am

2 stops41h 05m

Kathmandu Tribhuvan

Tue 10/20

6:00 pm-11:59 pm

2 stops40h 44m

$1,282

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 10/5

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Wed 10/21

6:45 pm-11:59 pm

2 stops39h 59m

$1,296

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

7:00 am-9:50 am

2 stops40h 05m

Kathmandu Tribhuvan

Wed 10/28

9:35 am-11:59 pm

2 stops49h 09m

$1,352

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 5/8

4:46 pm-4:45 pm

2 stops61h 14m

Kathmandu Tribhuvan

Sun 5/24

7:10 pm-11:54 pm

2 stops39h 29m

$1,397

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

7:00 am-9:50 am

2 stops40h 05m

Kathmandu Tribhuvan

Wed 10/28

6:45 pm-11:59 pm

2 stops39h 59m

$1,427

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/6

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Thu 11/5

6:45 pm-3:50 pm

2 stops32h 50m

$1,430

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 7/13

7:26 pm-8:50 am

2 stops26h 39m

Kathmandu Tribhuvan

Tue 8/4

10:05 am-7:32 pm

2 stops44h 12m

$1,540
Quickest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 10/15

3:33 pm-9:50 am

2 stops31h 32m

Kathmandu Tribhuvan

Mon 11/30

5:40 pm-3:29 pm

2 stops33h 34m

$1,547

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 6/19

7:56 pm-8:50 am

2 stops50h 09m

Kathmandu Tribhuvan

Sun 7/5

10:05 am-1:52 pm

2 stops62h 32m

$1,554

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 7/14

9:41 am-8:50 am

2 stops36h 24m

Kathmandu Tribhuvan

Tue 8/4

10:05 am-7:32 pm

2 stops44h 12m

$1,556

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 $1,412.

How far in advance should I book a flight from St. Louis to Kathmandu?

You are more likely to see cheaper flights to Kathmandu from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Kathmandu for around $1,595 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kathmandu from St. Louis for as low as $1,374 on momondo.

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

30h 32m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 30h 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

Frequently asked questions about flying from St. Louis to Kathmandu

  • 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 30h 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
Cathay PacificPriceFrom $1,295Free CancellationRating
7.6
1,306 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom $1,301Free CancellationRating
7.4
3,726 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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Fly your favorite airline to Kathmandu

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Qatar Airways
Cathay Pacific