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Cheap flights from St. Louis to Kathmandu from $456

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 5/7. 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 - 5:50 pm
STL
-
KTM
47h 05m
2 stops
Qatar Airways Logo
9:10 am - 11:59 pm
KTM
-
STL
49h 34m
2 stops
$1,351Qatar Airways
Thu, Feb 26 - Sun, Mar 15
Multiple Airlines Logo
7:00 am - 5:50 pm
STL
-
KTM
48h 05m
2 stops
Multiple Airlines Logo
9:10 am - 12:44 pm
KTM
-
STL
38h 19m
2 stops
$1,434Multiple Airlines
Fri, Mar 20 - Fri, Mar 27
Qatar Airways Logo
2:00 pm - 7:55 am
STL
-
KTM
30h 10m
2 stops
Qatar Airways Logo
10:55 am - 3:05 pm
KTM
-
STL
38h 55m
2 stops
$1,578Qatar Airways
Sun, Feb 22 - Fri, Apr 17
Multiple Airlines Logo
6:00 am - 9:45 pm
STL
-
KTM
29h 00m
2 stops
Multiple Airlines Logo
11:00 pm - 6:34 pm
KTM
-
STL
30h 19m
2 stops
$1,662Multiple Airlines
Sat, May 16 - Tue, Jun 16
Qatar Airways Logo
11:20 am - 7:55 am
STL
-
KTM
33h 50m
2 stops
Qatar Airways Logo
6:15 pm - 11:42 pm
KTM
-
STL
40h 12m
2 stops
$1,784Qatar Airways
Sat, May 23 - Wed, Jun 3
Qatar Airways Logo
2:33 pm - 7:55 am
STL
-
KTM
30h 37m
2 stops
Qatar Airways Logo
6:00 pm - 9:34 pm
KTM
-
STL
38h 19m
2 stops
$1,788Qatar Airways
Sat, May 16 - Tue, Jun 16
Multiple Airlines Logo
4:05 pm - 1:30 pm
STL
-
KTM
33h 40m
3 stops
Multiple Airlines Logo
3:10 pm - 3:05 pm
KTM
-
STL
34h 40m
3 stops
$1,848Multiple Airlines
Sun, Feb 22 - Fri, Apr 17
Cathay Pacific Logo
6:36 am - 9:45 pm
STL
-
KTM
52h 24m
2 stops
Cathay Pacific Logo
11:00 pm - 6:52 pm
KTM
-
STL
30h 37m
2 stops
$1,898Cathay Pacific
Mon, Jun 1 - Fri, Jul 31
Multiple Airlines Logo
4:05 pm - 1:30 pm
STL
-
KTM
33h 40m
3 stops
Multiple Airlines Logo
11:00 pm - 7:34 pm
KTM
-
STL
31h 19m
2 stops
$2,058Multiple Airlines
Sun, Feb 22 - Fri, Apr 17
Cathay Pacific Logo
6:36 am - 9:45 pm
STL
-
KTM
52h 24m
2 stops
Cathay Pacific Logo
11:00 pm - 11:42 pm
KTM
-
STL
35h 27m
2 stops
$2,061Cathay Pacific
Mon, Jun 22 - Wed, Jul 29

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Feb 26
STL7:00 amLambert-St Louis
47h 05m
2 stops
KTM5:50 pmKathmandu Tribhuvan
Mar 15
KTM9:10 amKathmandu Tribhuvan
49h 34m
2 stops
STL11:59 pmLambert-St Louis
$1,351
Qatar Airways
Feb 22
STL2:00 pmLambert-St Louis
30h 10m
2 stops
KTM7:55 amKathmandu Tribhuvan
Apr 17
KTM10:55 amKathmandu Tribhuvan
38h 55m
2 stops
STL3:05 pmLambert-St Louis
$1,578
Qatar Airways
Mar 17
STL9:35 amLambert-St Louis
44h 05m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Mar 29
KTM6:00 pmKathmandu Tribhuvan
40h 43m
2 stops
STL11:58 pmLambert-St Louis
$1,679

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jun 1
STL6:36 amLambert-St Louis
52h 24m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 31
KTM11:00 pmKathmandu Tribhuvan
30h 37m
2 stops
STL6:52 pmLambert-St Louis
$1,898
Cathay Pacific
Jun 22
STL6:36 amLambert-St Louis
52h 24m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 29
KTM11:00 pmKathmandu Tribhuvan
35h 27m
2 stops
STL11:42 pmLambert-St Louis
$2,061
Cathay Pacific
Jun 21
STL6:36 amLambert-St Louis
52h 24m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 2
KTM11:00 pmKathmandu Tribhuvan
30h 37m
2 stops
STL6:52 pmLambert-St Louis
$5,746

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 February 4, 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 2/26

7:00 am-5:50 pm

2 stops47h 05m

Kathmandu Tribhuvan

Sun 3/15

9:10 am-11:59 pm

2 stops49h 34m

$1,351

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 3/20

7:00 am-5:50 pm

2 stops48h 05m

Kathmandu Tribhuvan

Fri 3/27

9:10 am-12:44 pm

2 stops38h 19m

$1,434

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 2/22

2:00 pm-7:55 am

2 stops30h 10m

Kathmandu Tribhuvan

Fri 4/17

10:55 am-3:05 pm

2 stops38h 55m

$1,578

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 5/16

6:00 am-9:45 pm

2 stops29h 00m

Kathmandu Tribhuvan

Tue 6/16

11:00 pm-6:34 pm

2 stops30h 19m

$1,662

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 5/23

11:20 am-7:55 am

2 stops33h 50m

Kathmandu Tribhuvan

Wed 6/3

6:15 pm-11:42 pm

2 stops40h 12m

$1,784

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 5/16

2:33 pm-7:55 am

2 stops30h 37m

Kathmandu Tribhuvan

Tue 6/16

6:00 pm-9:34 pm

2 stops38h 19m

$1,788

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 2/22

4:05 pm-1:30 pm

3 stops33h 40m

Kathmandu Tribhuvan

Fri 4/17

3:10 pm-3:05 pm

3 stops34h 40m

$1,848

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 6/1

6:36 am-9:45 pm

2 stops52h 24m

Kathmandu Tribhuvan

Fri 7/31

11:00 pm-6:52 pm

2 stops30h 37m

$1,898

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 2/22

4:05 pm-1:30 pm

3 stops33h 40m

Kathmandu Tribhuvan

Fri 4/17

11:00 pm-7:34 pm

2 stops31h 19m

$2,058

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 6/22

6:36 am-9:45 pm

2 stops52h 24m

Kathmandu Tribhuvan

Wed 7/29

11:00 pm-11:42 pm

2 stops35h 27m

$2,061

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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 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

30h 10m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 30h 10m
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 30h 10m 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
3,730 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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Qatar Airways