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Cheap flights from St. Louis to Kathmandu from $1,196

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 1/20. 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
6:00 am - 9:30 pmSTL-KTM
51h 45m2 stops
Cathay Pacific Logo
10:55 pm - 5:56 pmKTM-STL
30h 46m2 stops
$1,196Cathay Pacific
Find Deal
Tue, Jan 20 - Tue, Mar 3
Cathay Pacific Logo
9:25 am - 9:30 pmSTL-KTM
48h 20m2 stops
Cathay Pacific Logo
10:55 pm - 5:56 pmKTM-STL
30h 46m2 stops
$1,197Cathay Pacific
Find Deal
Tue, Jan 20 - Tue, Mar 3
Multiple Airlines Logo
11:06 am - 9:30 pmSTL-KTM
46h 39m2 stops
Multiple Airlines Logo
10:55 pm - 5:56 pmKTM-STL
30h 46m2 stops
$1,199Multiple Airlines
Find Deal
Tue, Jan 20 - Tue, Mar 3
Cathay Pacific Logo
6:13 pm - 9:30 pmSTL-KTM
39h 32m2 stops
Cathay Pacific Logo
10:55 pm - 11:57 pmKTM-STL
36h 47m2 stops
$1,331Cathay Pacific
Find Deal
Sun, Nov 30 - Sun, Dec 7
Qatar Airways Logo
6:00 am - 9:45 amSTL-KTM
40h 00m2 stops
Qatar Airways Logo
7:05 pm - 10:35 pmKTM-STL
39h 15m2 stops
$1,410Qatar Airways
Find Deal
Thu, Nov 20 - Fri, Dec 26
Multiple Airlines Logo
7:00 am - 11:10 amSTL-KTM
40h 25m2 stops
Multiple Airlines Logo
12:35 pm - 1:54 pmKTM-STL
61h 04m2 stops
$1,665Multiple Airlines
Find Deal
Mon, Dec 8 - Sun, Jan 11
Emirates Logo
3:11 pm - 8:20 amSTL-KTM
29h 24m2 stops
Emirates Logo
12:30 am - 9:00 pmKTM-STL
32h 15m2 stops
$1,703Emirates
Find Deal
Tue, Jan 20 - Mon, Mar 2
Turkish Airlines Logo
5:27 pm - 11:10 amSTL-KTM
29h 58m2 stops
Turkish Airlines Logo
12:35 pm - 2:30 pmKTM-STL
37h 40m2 stops
$1,801Turkish Airlines
Find Deal
Sun, Dec 14 - Sat, Jan 17
Turkish Airlines Logo
5:27 pm - 11:10 amSTL-KTM
29h 58m2 stops
Turkish Airlines Logo
12:35 pm - 2:30 pmKTM-STL
37h 40m2 stops
$1,883Turkish Airlines
Find Deal
Sun, Dec 14 - Sat, Jan 17
Qatar Airways Logo
6:00 am - 7:55 amSTL-KTM
38h 10m2 stops
Qatar Airways Logo
7:05 pm - 10:44 pmKTM-STL
39h 24m2 stops
$2,233Qatar Airways
Find Deal
Sat, Dec 13 - Fri, Jan 16

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jan 20
STL6:00 amLambert-St Louis
51h 45m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Mar 3
KTM10:55 pmKathmandu Tribhuvan
30h 46m
2 stops
STL5:56 pmLambert-St Louis
$1,196
Find similar
Cathay Pacific
Jan 20
STL9:25 amLambert-St Louis
48h 20m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Mar 3
KTM10:55 pmKathmandu Tribhuvan
30h 46m
2 stops
STL5:56 pmLambert-St Louis
$1,197
Find similar
Cathay Pacific
Nov 30
STL6:13 pmLambert-St Louis
39h 32m
2 stops
KTM9:30 pmKathmandu Tribhuvan
Dec 7
KTM10:55 pmKathmandu Tribhuvan
36h 47m
2 stops
STL11:57 pmLambert-St Louis
$1,331
Find similar

Turkish Airlines flights from St. Louis to Kathmandu

Our best Turkish Airlines deals on St. Louis to Kathmandu flight tickets
Turkish Airlines
Dec 14
STL5:27 pmLambert-St Louis
29h 58m
2 stops
KTM11:10 amKathmandu Tribhuvan
Jan 17
KTM12:35 pmKathmandu Tribhuvan
37h 40m
2 stops
STL2:30 pmLambert-St Louis
$1,801
Find similar
Turkish Airlines
Dec 14
STL5:27 pmLambert-St Louis
29h 58m
2 stops
KTM11:10 amKathmandu Tribhuvan
Jan 17
KTM12:35 pmKathmandu Tribhuvan
37h 40m
2 stops
STL2:30 pmLambert-St Louis
$1,883
Find similar
Turkish Airlines
Dec 14
STL5:27 pmLambert-St Louis
29h 58m
2 stops
KTM11:10 amKathmandu Tribhuvan
Jan 12
KTM12:35 pmKathmandu Tribhuvan
37h 40m
2 stops
STL2:30 pmLambert-St Louis
$1,884
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 October 16, 2025.
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

Tue 1/20

6:00 am-9:30 pm

2 stops51h 45m

Kathmandu Tribhuvan

Tue 3/3

10:55 pm-5:56 pm

2 stops30h 46m

$1,196

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

9:25 am-9:30 pm

2 stops48h 20m

Kathmandu Tribhuvan

Tue 3/3

10:55 pm-5:56 pm

2 stops30h 46m

$1,197

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

11:06 am-9:30 pm

2 stops46h 39m

Kathmandu Tribhuvan

Tue 3/3

10:55 pm-5:56 pm

2 stops30h 46m

$1,199

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 11/30

6:13 pm-9:30 pm

2 stops39h 32m

Kathmandu Tribhuvan

Sun 12/7

10:55 pm-11:57 pm

2 stops36h 47m

$1,331

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 11/20

6:00 am-9:45 am

2 stops40h 00m

Kathmandu Tribhuvan

Fri 12/26

7:05 pm-10:35 pm

2 stops39h 15m

$1,410

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 12/8

7:00 am-11:10 am

2 stops40h 25m

Kathmandu Tribhuvan

Sun 1/11

12:35 pm-1:54 pm

2 stops61h 04m

$1,665

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 1/20

3:11 pm-8:20 am

2 stops29h 24m

Kathmandu Tribhuvan

Mon 3/2

12:30 am-9:00 pm

2 stops32h 15m

$1,703

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 12/14

5:27 pm-11:10 am

2 stops29h 58m

Kathmandu Tribhuvan

Sat 1/17

12:35 pm-2:30 pm

2 stops37h 40m

$1,801

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sun 12/14

5:27 pm-11:10 am

2 stops29h 58m

Kathmandu Tribhuvan

Sat 1/17

12:35 pm-2:30 pm

2 stops37h 40m

$1,883

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 12/13

6:00 am-7:55 am

2 stops38h 10m

Kathmandu Tribhuvan

Fri 1/16

7:05 pm-10:44 pm

2 stops39h 24m

$2,233

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 March is another great option to travel to Kathmandu, with average flight prices from St. Louis averaging around $1,293.

What is the cheapest day to depart on your flight to Kathmandu?

According to our data, Saturday is the cheapest day to fly to Kathmandu from St. Louis. The lowest ticket price found for a Saturday departure recently was $1,415. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from St. Louis to Kathmandu on a Thursday will generally be more expensive and average around $1,655. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Kathmandu?

In the afternoon is the cheapest time of day to fly from St. Louis to Kathmandu when you can find flight prices for as low as $1,515. Flying to Kathmandu in the afternoon is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $1,593.

How far in advance should I book a flight 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 $1,648 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 $1,213 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

Direct flights

None
There are no direct flights from St. Louis to Kathmandu. There are no popular flight routes from St. Louis to Kathmandu.
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  • 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 25h 57m 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 $1,140Free CancellationRating
7.4
3,652 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,739Free CancellationRating
7.6
1,028 reviews
Search Cathay Pacific 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

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Delta
American Airlines
United Airlines
Turkish Airlines
Lufthansa
Frontier
British Airways
Qatar Airways
Spirit Airlines
Ryanair
Alaska Airlines
Emirates