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Cheap flights from St. Louis to Kathmandu from $600

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 1/10. 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.
Multiple Airlines Logo
12:11 pm - 9:45 pm
STL
-
KTM
46h 49m2 stops
Multiple Airlines Logo
11:00 pm - 11:59 pm
KTM
-
STL
35h 44m2 stops
$1,335Multiple Airlines
Sat, Apr 11 - Sun, Apr 19
Qatar Airways Logo
10:00 am - 7:55 am
STL
-
KTM
34h 10m2 stops
Qatar Airways Logo
7:05 pm - 9:12 pm
KTM
-
STL
37h 52m2 stops
$1,441Qatar Airways
Tue, Jan 20 - Tue, Mar 3
Qatar Airways Logo
11:05 am - 7:55 am
STL
-
KTM
33h 05m2 stops
Qatar Airways Logo
7:05 pm - 9:12 pm
KTM
-
STL
37h 52m2 stops
$1,482Qatar Airways
Tue, Jan 20 - Tue, Mar 3
Cathay Pacific Logo
6:36 am - 9:45 pm
STL
-
KTM
52h 24m2 stops
Cathay Pacific Logo
11:00 pm - 11:44 pm
KTM
-
STL
35h 29m2 stops
$2,074Cathay Pacific
Mon, Jun 1 - Fri, Jul 31
Multiple Airlines Logo
1:11 pm - 7:55 am
STL
-
KTM
31h 59m2 stops
Multiple Airlines Logo
4:00 pm - 8:02 pm
KTM
-
STL
38h 47m3 stops
$4,031Multiple Airlines
Mon, Jun 1 - Fri, Jul 31
Multiple Airlines Logo
11:37 am - 8:00 am
STL
-
KTM
33h 38m2 stops
Multiple Airlines Logo
10:05 am - 2:24 pm
KTM
-
STL
39h 04m3 stops
$5,578Multiple Airlines
Sat, Apr 11 - Sun, Apr 19
Multiple Airlines Logo
1:26 pm - 8:50 am
STL
-
KTM
32h 39m2 stops
Multiple Airlines Logo
12:50 pm - 4:26 pm
KTM
-
STL
38h 21m3 stops
$5,735Multiple Airlines
Mon, Jun 15 - Thu, Jul 30
Turkish Airlines Logo
5:18 pm - 6:05 am
STL
-
KTM
26h 02m2 stops
Turkish Airlines Logo
7:30 am - 2:18 pm
KTM
-
STL
41h 33m2 stops
$6,020Turkish Airlines
Sun, Jun 21 - Thu, Jul 2
Turkish Airlines Logo
5:18 pm - 6:05 am
STL
-
KTM
26h 02m2 stops
Turkish Airlines Logo
7:30 am - 2:18 pm
KTM
-
STL
41h 33m2 stops
$6,021Turkish Airlines
Sun, Jun 21 - Thu, Jul 2
Multiple Airlines Logo
3:15 pm - 2:35 pm
STL
-
KTM
36h 35m3 stops
Multiple Airlines Logo
12:50 pm - 4:26 pm
KTM
-
STL
38h 21m3 stops
$7,317Multiple Airlines
Mon, Jun 15 - Thu, Jul 30

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Jan 20
STL10:00 amLambert-St Louis
34h 10m
2 stops
KTM7:55 amKathmandu Tribhuvan
Mar 3
KTM7:05 pmKathmandu Tribhuvan
37h 52m
2 stops
STL9:12 pmLambert-St Louis
$1,441
Find similar
Qatar Airways
Jan 20
STL11:05 amLambert-St Louis
33h 05m
2 stops
KTM7:55 amKathmandu Tribhuvan
Mar 3
KTM7:05 pmKathmandu Tribhuvan
37h 52m
2 stops
STL9:12 pmLambert-St Louis
$1,482
Find similar
Qatar Airways
Jan 6
STL12:11 pmLambert-St Louis
31h 59m
2 stops
KTM7:55 amKathmandu Tribhuvan
Jan 20
KTM5:40 pmKathmandu Tribhuvan
37h 34m
2 stops
STL7:29 pmLambert-St Louis
$1,524
Find similar

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jan 6
STL7:04 amLambert-St Louis
50h 41m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Jan 20
KTM10:55 pmKathmandu Tribhuvan
36h 49m
2 stops
STL11:59 pmLambert-St Louis
$1,450
Find similar
Cathay Pacific
Jun 1
STL6:36 amLambert-St Louis
52h 24m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 31
KTM11:00 pmKathmandu Tribhuvan
35h 29m
2 stops
STL11:44 pmLambert-St Louis
$2,074
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 January 1, 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

Sat 4/11

12:11 pm-9:45 pm

2 stops46h 49m

Kathmandu Tribhuvan

Sun 4/19

11:00 pm-11:59 pm

2 stops35h 44m

$1,335

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

10:00 am-7:55 am

2 stops34h 10m

Kathmandu Tribhuvan

Tue 3/3

7:05 pm-9:12 pm

2 stops37h 52m

$1,441

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

11:05 am-7:55 am

2 stops33h 05m

Kathmandu Tribhuvan

Tue 3/3

7:05 pm-9:12 pm

2 stops37h 52m

$1,482

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-11:44 pm

2 stops35h 29m

$2,074

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 6/1

1:11 pm-7:55 am

2 stops31h 59m

Kathmandu Tribhuvan

Fri 7/31

4:00 pm-8:02 pm

3 stops38h 47m

$4,031

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 4/11

11:37 am-8:00 am

2 stops33h 38m

Kathmandu Tribhuvan

Sun 4/19

10:05 am-2:24 pm

3 stops39h 04m

$5,578

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 6/15

1:26 pm-8:50 am

2 stops32h 39m

Kathmandu Tribhuvan

Thu 7/30

12:50 pm-4:26 pm

3 stops38h 21m

$5,735

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 6/21

5:18 pm-6:05 am

2 stops26h 02m

Kathmandu Tribhuvan

Thu 7/2

7:30 am-2:18 pm

2 stops41h 33m

$6,020

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 6/21

5:18 pm-6:05 am

2 stops26h 02m

Kathmandu Tribhuvan

Thu 7/2

7:30 am-2:18 pm

2 stops41h 33m

$6,021

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 6/15

3:15 pm-2:35 pm

3 stops36h 35m

Kathmandu Tribhuvan

Thu 7/30

12:50 pm-4:26 pm

3 stops38h 21m

$7,317

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 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 $1,215Free CancellationRating
7.4
3,700 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