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Cheap flights from St. Louis to Kathmandu from $690

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 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Multiple Airlines Logo
5:40 pm - 11:59 pm
KTM
-
STL
41h 04m
2 stops
$1,339Multiple Airlines
Sun, Oct 18 - Sun, Oct 25
Qatar Airways Logo
6:02 am - 8:50 am
STL
-
KTM
40h 03m
2 stops
Qatar Airways Logo
11:05 am - 8:26 pm
KTM
-
STL
44h 06m
2 stops
$1,448Qatar Airways
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
7:00 am - 5:30 pm
STL
-
KTM
47h 45m
2 stops
Multiple Airlines Logo
9:35 am - 9:59 pm
KTM
-
STL
47h 09m
2 stops
$1,461Multiple Airlines
Tue, Oct 20 - Wed, Oct 28
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Qatar Airways Logo
11:05 am - 2:30 pm
KTM
-
STL
38h 10m
2 stops
$1,468Qatar Airways
Tue, Oct 20 - Wed, Oct 28
Qatar Airways Logo
6:29 am - 5:30 pm
STL
-
KTM
48h 16m
2 stops
Qatar Airways Logo
6:45 pm - 2:21 pm
KTM
-
STL
54h 21m
2 stops
$1,476Qatar Airways
Thu, Sep 24 - Mon, Sep 28
Qatar Airways Logo
6:29 am - 5:30 pm
STL
-
KTM
48h 16m
2 stops
Qatar Airways Logo
6:45 pm - 2:21 pm
KTM
-
STL
54h 21m
2 stops
$1,477Qatar Airways
Thu, Sep 24 - Mon, Sep 28
Qatar Airways Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Qatar Airways Logo
6:45 pm - 12:37 pm
KTM
-
STL
29h 37m
2 stops
$1,510Qatar Airways
Tue, Oct 20 - Sun, Nov 22
Qatar Airways Logo
7:00 am - 8:20 am
STL
-
KTM
37h 35m
2 stops
Qatar Airways Logo
5:40 pm - 10:56 pm
KTM
-
STL
41h 01m
2 stops
$1,524Qatar Airways
Wed, Nov 11 - Wed, Dec 16
Qatar Airways Logo
6:45 am - 2:15 pm
STL
-
KTM
44h 45m
2 stops
Qatar Airways Logo
11:05 am - 8:43 am
KTM
-
STL
32h 23m
2 stops
$1,631Qatar Airways
Sat, Jul 18 - Thu, Aug 13
Qatar Airways Logo
6:45 am - 2:15 pm
STL
-
KTM
44h 45m
2 stops
Qatar Airways Logo
10:05 am - 8:59 pm
KTM
-
STL
45h 39m
2 stops
$1,703Qatar Airways
Sat, Jul 18 - Fri, Aug 14

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Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Aug 17
STL6:02 amLambert-St Louis
40h 03m
2 stops
KTM8:50 amKathmandu Tribhuvan
Aug 24
KTM11:05 amKathmandu Tribhuvan
44h 06m
2 stops
STL8:26 pmLambert-St Louis
$1,448
Qatar Airways
Oct 20
STL7:00 amLambert-St Louis
47h 00m
2 stops
KTM4:45 pmKathmandu Tribhuvan
Oct 28
KTM11:05 amKathmandu Tribhuvan
38h 10m
2 stops
STL2:30 pmLambert-St Louis
$1,468
Qatar Airways
Sep 24
STL6:29 amLambert-St Louis
48h 16m
2 stops
KTM5:30 pmKathmandu Tribhuvan
Sep 28
KTM6:45 pmKathmandu Tribhuvan
54h 21m
2 stops
STL2:21 pmLambert-St Louis
$1,476

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Sep 10
STL10:14 amLambert-St Louis
48h 46m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Sep 23
KTM11:00 pmKathmandu Tribhuvan
35h 25m
2 stops
STL11:40 pmLambert-St Louis
$2,909
Cathay Pacific
Sep 10
STL6:43 pmLambert-St Louis
40h 17m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Sep 22
KTM11:00 pmKathmandu Tribhuvan
35h 28m
2 stops
STL11:43 pmLambert-St Louis
$2,910
Cathay Pacific
Sep 10
STL6:43 pmLambert-St Louis
40h 17m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Sep 22
KTM11:00 pmKathmandu Tribhuvan
59h 25m
2 stops
STL11:40 pmLambert-St Louis
$2,927

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 July 6, 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

Sun 10/18

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Sun 10/25

5:40 pm-11:59 pm

2 stops41h 04m

$1,339

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 8/17

6:02 am-8:50 am

2 stops40h 03m

Kathmandu Tribhuvan

Mon 8/24

11:05 am-8:26 pm

2 stops44h 06m

$1,448

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

7:00 am-5:30 pm

2 stops47h 45m

Kathmandu Tribhuvan

Wed 10/28

9:35 am-9:59 pm

2 stops47h 09m

$1,461

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Wed 10/28

11:05 am-2:30 pm

2 stops38h 10m

$1,468

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 9/24

6:29 am-5:30 pm

2 stops48h 16m

Kathmandu Tribhuvan

Mon 9/28

6:45 pm-2:21 pm

2 stops54h 21m

$1,476

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 9/24

6:29 am-5:30 pm

2 stops48h 16m

Kathmandu Tribhuvan

Mon 9/28

6:45 pm-2:21 pm

2 stops54h 21m

$1,477
Quickest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Sun 11/22

6:45 pm-12:37 pm

2 stops29h 37m

$1,510

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 11/11

7:00 am-8:20 am

2 stops37h 35m

Kathmandu Tribhuvan

Wed 12/16

5:40 pm-10:56 pm

2 stops41h 01m

$1,524

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 7/18

6:45 am-2:15 pm

2 stops44h 45m

Kathmandu Tribhuvan

Thu 8/13

11:05 am-8:43 am

2 stops32h 23m

$1,631

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 7/18

6:45 am-2:15 pm

2 stops44h 45m

Kathmandu Tribhuvan

Fri 8/14

10:05 am-8:59 pm

2 stops45h 39m

$1,703

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 $1,395.

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 $1,610 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 $1,472 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

41h 35m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 41h 35m
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 41h 35m 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 $1,257Free CancellationRating
7.3
3,742 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,295Free CancellationRating
7.6
1,403 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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Qatar Airways
Cathay Pacific