Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Kathmandu from $633

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 5/4. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
3:50 pm - 8:40 am
STL
-
KTM
54h 05m
2 stops
Multiple Airlines Logo
7:10 pm - 11:54 pm
KTM
-
STL
39h 29m
2 stops
$1,223Multiple Airlines
Tue, Apr 21 - Tue, May 26
Turkish Airlines Logo
7:45 am - 6:15 am
STL
-
KTM
35h 45m
2 stops
Turkish Airlines Logo
7:40 am - 9:16 pm
KTM
-
STL
48h 21m
2 stops
$1,301Turkish Airlines
Mon, Apr 20 - Tue, May 26
Multiple Airlines Logo
7:00 am - 8:40 am
STL
-
KTM
38h 55m
2 stops
Multiple Airlines Logo
7:10 pm - 9:37 pm
KTM
-
STL
37h 12m
2 stops
$1,363Multiple Airlines
Mon, May 4 - Fri, Jun 12
Multiple Airlines Logo
7:00 am - 4:45 pm
STL
-
KTM
47h 00m
2 stops
Multiple Airlines Logo
7:10 pm - 11:54 pm
KTM
-
STL
39h 29m
2 stops
$1,365Multiple Airlines
Mon, May 4 - Thu, Jun 11
Multiple Airlines Logo
4:46 pm - 4:45 pm
STL
-
KTM
61h 14m
2 stops
Multiple Airlines Logo
7:10 pm - 11:54 pm
KTM
-
STL
39h 29m
2 stops
$1,418Multiple Airlines
Tue, May 5 - Thu, Jun 11
Multiple Airlines Logo
7:00 am - 8:40 am
STL
-
KTM
38h 55m
2 stops
Multiple Airlines Logo
7:10 pm - 10:24 pm
KTM
-
STL
37h 59m
2 stops
$1,448Multiple Airlines
Sat, May 2 - Sat, May 9
Turkish Airlines Logo
7:45 am - 6:15 am
STL
-
KTM
35h 45m
2 stops
Turkish Airlines Logo
7:40 am - 9:16 pm
KTM
-
STL
48h 21m
2 stops
$1,451Turkish Airlines
Tue, Apr 21 - Tue, May 26
Multiple Airlines Logo
6:21 am - 9:45 pm
STL
-
KTM
52h 39m
2 stops
Multiple Airlines Logo
7:40 am - 9:16 pm
KTM
-
STL
48h 21m
2 stops
$1,483Multiple Airlines
Wed, May 13 - Thu, May 28
Qatar Airways Logo
3:38 pm - 8:40 am
STL
-
KTM
30h 17m
2 stops
Qatar Airways Logo
7:10 pm - 8:30 pm
KTM
-
STL
36h 05m
2 stops
$1,488Qatar Airways
Tue, May 5 - Wed, Jun 10
Qatar Airways Logo
7:00 am - 8:40 am
STL
-
KTM
38h 55m
2 stops
Qatar Airways Logo
6:00 pm - 9:37 pm
KTM
-
STL
38h 22m
2 stops
$1,492Qatar Airways
Mon, May 11 - Mon, Jun 22

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Apr 28
STL6:21 amLambert-St Louis
52h 39m
2 stops
KTM9:45 pmKathmandu Tribhuvan
May 9
KTM11:00 pmKathmandu Tribhuvan
34h 44m
2 stops
STL10:59 pmLambert-St Louis
$1,496
Cathay Pacific
Jun 22
STL6:35 amLambert-St Louis
52h 25m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 29
KTM11:00 pmKathmandu Tribhuvan
31h 09m
2 stops
STL7:24 pmLambert-St Louis
$1,698
Cathay Pacific
May 20
STL6:21 amLambert-St Louis
52h 39m
2 stops
KTM9:45 pmKathmandu Tribhuvan
May 27
KTM11:00 pmKathmandu Tribhuvan
35h 41m
2 stops
STL11:56 pmLambert-St Louis
$1,974

Turkish Airlines flights from St. Louis to Kathmandu

Our best Turkish Airlines deals on St. Louis to Kathmandu flight tickets
Turkish Airlines
Apr 20
STL7:45 amLambert-St Louis
35h 45m
2 stops
KTM6:15 amKathmandu Tribhuvan
May 26
KTM7:40 amKathmandu Tribhuvan
48h 21m
2 stops
STL9:16 pmLambert-St Louis
$1,301
Turkish Airlines
Apr 21
STL7:45 amLambert-St Louis
35h 45m
2 stops
KTM6:15 amKathmandu Tribhuvan
May 26
KTM7:40 amKathmandu Tribhuvan
48h 21m
2 stops
STL9:16 pmLambert-St Louis
$1,451
Turkish Airlines
May 16
STL7:45 amLambert-St Louis
35h 45m
2 stops
KTM6:15 amKathmandu Tribhuvan
Jun 16
KTM7:40 amKathmandu Tribhuvan
48h 21m
2 stops
STL9:16 pmLambert-St Louis
$1,958

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 April 5, 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

Tue 4/21

3:50 pm-8:40 am

2 stops54h 05m

Kathmandu Tribhuvan

Tue 5/26

7:10 pm-11:54 pm

2 stops39h 29m

$1,223

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 4/20

7:45 am-6:15 am

2 stops35h 45m

Kathmandu Tribhuvan

Tue 5/26

7:40 am-9:16 pm

2 stops48h 21m

$1,301

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 5/4

7:00 am-8:40 am

2 stops38h 55m

Kathmandu Tribhuvan

Fri 6/12

7:10 pm-9:37 pm

2 stops37h 12m

$1,363

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 5/4

7:00 am-4:45 pm

2 stops47h 00m

Kathmandu Tribhuvan

Thu 6/11

7:10 pm-11:54 pm

2 stops39h 29m

$1,365

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 5/5

4:46 pm-4:45 pm

2 stops61h 14m

Kathmandu Tribhuvan

Thu 6/11

7:10 pm-11:54 pm

2 stops39h 29m

$1,418

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 5/2

7:00 am-8:40 am

2 stops38h 55m

Kathmandu Tribhuvan

Sat 5/9

7:10 pm-10:24 pm

2 stops37h 59m

$1,448

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 4/21

7:45 am-6:15 am

2 stops35h 45m

Kathmandu Tribhuvan

Tue 5/26

7:40 am-9:16 pm

2 stops48h 21m

$1,451

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Wed 5/13

6:21 am-9:45 pm

2 stops52h 39m

Kathmandu Tribhuvan

Thu 5/28

7:40 am-9:16 pm

2 stops48h 21m

$1,483
Quickest round-trip

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 5/5

3:38 pm-8:40 am

2 stops30h 17m

Kathmandu Tribhuvan

Wed 6/10

7:10 pm-8:30 pm

2 stops36h 05m

$1,488

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Mon 5/11

7:00 am-8:40 am

2 stops38h 55m

Kathmandu Tribhuvan

Mon 6/22

6:00 pm-9:37 pm

2 stops38h 22m

$1,492

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $1,390.

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 $1,593 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 $1,352 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

25h 57m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 25h 57m
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 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
Cathay PacificPriceFrom $1,295Free CancellationRating
7.6
1,242 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom $1,301Free 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.

An easier way to manage your Kathmandu trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 5/5
Tue 5/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Nepal

Fly your favorite airline to Kathmandu

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Qatar Airways