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Cheap flights from St. Louis to Kathmandu from $613

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 8/9. 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
6:29 am - 4:45 pm
STL
-
KTM
47h 31m
2 stops
Multiple Airlines Logo
10:05 am - 11:59 pm
KTM
-
STL
48h 39m
2 stops
$1,268Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Qatar Airways Logo
6:29 am - 5:30 pm
STL
-
KTM
48h 16m
2 stops
Qatar Airways Logo
6:00 pm - 11:59 pm
KTM
-
STL
40h 44m
2 stops
$1,273Qatar Airways
Wed, Sep 30 - Wed, Oct 21
Qatar Airways Logo
6:35 am - 8:50 am
STL
-
KTM
39h 30m
2 stops
Qatar Airways Logo
5:40 pm - 12:56 am
KTM
-
STL
42h 01m
2 stops
$1,277Qatar Airways
Wed, Sep 2 - Sat, Oct 31
Qatar Airways Logo
7:02 am - 5:30 pm
STL
-
KTM
47h 43m
2 stops
Qatar Airways Logo
5:40 pm - 11:59 pm
KTM
-
STL
41h 04m
2 stops
$1,282Qatar Airways
Tue, Oct 20 - Wed, Oct 28
Qatar Airways Logo
7:02 am - 4:45 pm
STL
-
KTM
46h 58m
2 stops
Qatar Airways Logo
6:00 pm - 11:59 pm
KTM
-
STL
40h 44m
2 stops
$1,317Qatar Airways
Tue, Oct 6 - Sat, Oct 24
Multiple Airlines Logo
7:02 am - 4:45 pm
STL
-
KTM
46h 58m
2 stops
Multiple Airlines Logo
6:45 pm - 9:08 pm
KTM
-
STL
37h 08m
2 stops
$1,402Multiple Airlines
Tue, Oct 20 - Wed, Oct 28
Qatar Airways Logo
6:04 am - 5:30 pm
STL
-
KTM
47h 41m
2 stops
Qatar Airways Logo
6:45 pm - 10:05 pm
KTM
-
STL
39h 05m
2 stops
$1,439Qatar Airways
Mon, Jan 4 - Mon, Jan 25
Multiple Airlines Logo
7:02 am - 2:15 pm
STL
-
KTM
44h 28m
2 stops
Multiple Airlines Logo
9:35 am - 7:42 pm
KTM
-
STL
45h 52m
2 stops
$1,503Multiple Airlines
Fri, Oct 9 - Fri, Nov 13
Multiple Airlines Logo
4:42 pm - 2:15 pm
STL
-
KTM
58h 48m
2 stops
Multiple Airlines Logo
5:40 pm - 3:04 pm
KTM
-
STL
32h 09m
2 stops
$1,509Multiple Airlines
Thu, Oct 15 - Sat, Oct 31
Qatar Airways Logo
3:15 pm - 9:50 am
STL
-
KTM
54h 50m
2 stops
Qatar Airways Logo
6:45 pm - 11:59 pm
KTM
-
STL
40h 59m
2 stops
$1,561Qatar Airways
Fri, Nov 20 - Tue, Dec 15

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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
Sep 30
STL6:29 amLambert-St Louis
48h 16m
2 stops
KTM5:30 pmKathmandu Tribhuvan
Oct 21
KTM6:00 pmKathmandu Tribhuvan
40h 44m
2 stops
STL11:59 pmLambert-St Louis
$1,273
Qatar Airways
Sep 2
STL6:35 amLambert-St Louis
39h 30m
2 stops
KTM8:50 amKathmandu Tribhuvan
Oct 31
KTM5:40 pmKathmandu Tribhuvan
42h 01m
2 stops
STL12:56 amLambert-St Louis
$1,277
Qatar Airways
Oct 20
STL7:02 amLambert-St Louis
47h 43m
2 stops
KTM5:30 pmKathmandu Tribhuvan
Oct 28
KTM5:40 pmKathmandu Tribhuvan
41h 04m
2 stops
STL11:59 pmLambert-St Louis
$1,282

Air India flights from St. Louis to Kathmandu

Our best Air India deals on St. Louis to Kathmandu flight tickets
Air India
Oct 20
STL7:08 amLambert-St Louis
30h 12m
3 stops
KTM12:05 amKathmandu Tribhuvan
Oct 28
KTM9:40 pmKathmandu Tribhuvan
34h 57m
2 stops
STL9:52 pmLambert-St Louis
$2,788
Air India
Oct 15
STL7:08 amLambert-St Louis
39h 12m
3 stops
KTM9:05 amKathmandu Tribhuvan
Oct 31
KTM1:45 pmKathmandu Tribhuvan
40h 05m
2 stops
STL7:05 pmLambert-St Louis
$2,981
Air India
Oct 20
STL7:08 amLambert-St Louis
30h 12m
3 stops
KTM12:05 amKathmandu Tribhuvan
Oct 28
KTM9:40 pmKathmandu Tribhuvan
34h 57m
2 stops
STL9:52 pmLambert-St Louis
$3,305

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 28, 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

Wed 9/9

6:29 am-4:45 pm

2 stops47h 31m

Kathmandu Tribhuvan

Wed 9/16

10:05 am-11:59 pm

2 stops48h 39m

$1,268

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 9/30

6:29 am-5:30 pm

2 stops48h 16m

Kathmandu Tribhuvan

Wed 10/21

6:00 pm-11:59 pm

2 stops40h 44m

$1,273
Quickest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 9/2

6:35 am-8:50 am

2 stops39h 30m

Kathmandu Tribhuvan

Sat 10/31

5:40 pm-12:56 am

2 stops42h 01m

$1,277

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

7:02 am-5:30 pm

2 stops47h 43m

Kathmandu Tribhuvan

Wed 10/28

5:40 pm-11:59 pm

2 stops41h 04m

$1,282

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/6

7:02 am-4:45 pm

2 stops46h 58m

Kathmandu Tribhuvan

Sat 10/24

6:00 pm-11:59 pm

2 stops40h 44m

$1,317

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 10/20

7:02 am-4:45 pm

2 stops46h 58m

Kathmandu Tribhuvan

Wed 10/28

6:45 pm-9:08 pm

2 stops37h 08m

$1,402

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 1/4

6:04 am-5:30 pm

2 stops47h 41m

Kathmandu Tribhuvan

Mon 1/25

6:45 pm-10:05 pm

2 stops39h 05m

$1,439

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 10/9

7:02 am-2:15 pm

2 stops44h 28m

Kathmandu Tribhuvan

Fri 11/13

9:35 am-7:42 pm

2 stops45h 52m

$1,503

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 10/15

4:42 pm-2:15 pm

2 stops58h 48m

Kathmandu Tribhuvan

Sat 10/31

5:40 pm-3:04 pm

2 stops32h 09m

$1,509

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 11/20

3:15 pm-9:50 am

2 stops54h 50m

Kathmandu Tribhuvan

Tue 12/15

6:45 pm-11:59 pm

2 stops40h 59m

$1,561

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?

Prices are currently low for flights on this route.

Typical prices usually range from $1,489 to $1,523.
The lowest price recently found on this route was $1,268.

What is the cheapest month to fly to Kathmandu?

The month of November is another great option to travel to Kathmandu, with average flight prices from St. Louis averaging around $1,501.

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 $1,640 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 $1,464 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

35h 05m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 35h 05m
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 35h 05m 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 $1,247Free CancellationRating
7.3
3,743 reviews
Search Qatar Airways flights
Cathay PacificPriceFrom $1,295Free CancellationRating
7.6
1,431 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
Qatar Airways
Cathay Pacific