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Cheap flights from St. Louis to Kathmandu from $451

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 2/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Qatar Airways Logo
7:00 am - 4:25 pm
STL
-
KTM
45h 40m
2 stops
Qatar Airways Logo
7:05 pm - 5:40 pm
KTM
-
STL
34h 20m
2 stops
$1,334Qatar Airways
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
12:05 pm - 9:45 pm
STL
-
KTM
46h 55m
2 stops
Multiple Airlines Logo
11:00 pm - 11:59 pm
KTM
-
STL
35h 44m
2 stops
$1,418Multiple Airlines
Thu, Apr 2 - Thu, May 7
Qatar Airways Logo
2:00 pm - 7:55 am
STL
-
KTM
31h 10m
2 stops
Qatar Airways Logo
5:40 pm - 12:44 pm
KTM
-
STL
29h 49m
2 stops
$1,524Qatar Airways
Fri, Mar 13 - Fri, Mar 20
Multiple Airlines Logo
7:00 am - 5:00 pm
STL
-
KTM
47h 15m
2 stops
Multiple Airlines Logo
6:00 pm - 11:59 pm
KTM
-
STL
40h 44m
2 stops
$1,530Multiple Airlines
Tue, May 12 - Tue, Aug 18
Multiple Airlines Logo
4:05 pm - 10:45 am
STL
-
KTM
31h 55m
3 stops
Multiple Airlines Logo
9:10 pm - 8:05 pm
KTM
-
STL
33h 40m
3 stops
$1,580Multiple Airlines
Thu, Apr 2 - Thu, May 7
Multiple Airlines Logo
6:00 am - 5:00 pm
STL
-
KTM
48h 15m
2 stops
Multiple Airlines Logo
6:00 pm - 5:03 pm
KTM
-
STL
33h 48m
2 stops
$1,705Multiple Airlines
Fri, May 15 - Mon, Jun 15
Qatar Airways Logo
6:11 pm - 7:55 am
STL
-
KTM
26h 59m
2 stops
Qatar Airways Logo
6:00 pm - 7:33 pm
KTM
-
STL
36h 18m
2 stops
$1,737Qatar Airways
Tue, May 12 - Tue, Aug 18
Multiple Airlines Logo
12:23 pm - 2:35 pm
STL
-
KTM
39h 27m
2 stops
Multiple Airlines Logo
9:00 am - 4:40 pm
KTM
-
STL
42h 25m
2 stops
$1,748Multiple Airlines
Tue, Jun 16 - Thu, Jul 23
Qatar Airways Logo
11:20 am - 4:45 pm
STL
-
KTM
42h 40m
2 stops
Qatar Airways Logo
6:00 pm - 12:09 pm
KTM
-
STL
28h 54m
2 stops
$1,759Qatar Airways
Fri, Jul 10 - Fri, Aug 7
Multiple Airlines Logo
6:00 am - 9:45 pm
STL
-
KTM
29h 00m
2 stops
Multiple Airlines Logo
11:00 pm - 6:34 pm
KTM
-
STL
30h 19m
2 stops
$1,770Multiple Airlines
Sat, May 16 - Tue, Jun 16

Qatar Airways flights from St. Louis to Kathmandu

Our best Qatar Airways deals on St. Louis to Kathmandu flight tickets
Qatar Airways
Feb 25
STL7:00 amLambert-St Louis
45h 40m
2 stops
KTM4:25 pmKathmandu Tribhuvan
Mar 4
KTM7:05 pmKathmandu Tribhuvan
34h 20m
2 stops
STL5:40 pmLambert-St Louis
$1,334
Qatar Airways
Mar 13
STL2:00 pmLambert-St Louis
31h 10m
2 stops
KTM7:55 amKathmandu Tribhuvan
Mar 20
KTM5:40 pmKathmandu Tribhuvan
29h 49m
2 stops
STL12:44 pmLambert-St Louis
$1,524
Qatar Airways
Jan 30
STL6:00 amLambert-St Louis
38h 10m
2 stops
KTM7:55 amKathmandu Tribhuvan
Feb 22
KTM7:05 pmKathmandu Tribhuvan
37h 52m
2 stops
STL9:12 pmLambert-St Louis
$1,542

Cathay Pacific flights from St. Louis to Kathmandu

Our best Cathay Pacific deals on St. Louis to Kathmandu flight tickets
Cathay Pacific
Jun 20
STL7:50 pmLambert-St Louis
63h 10m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 20
KTM11:00 pmKathmandu Tribhuvan
35h 27m
2 stops
STL11:42 pmLambert-St Louis
$1,908
Cathay Pacific
Jun 22
STL6:36 amLambert-St Louis
52h 24m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 29
KTM11:00 pmKathmandu Tribhuvan
35h 27m
2 stops
STL11:42 pmLambert-St Louis
$1,977
Cathay Pacific
Jun 16
STL6:36 amLambert-St Louis
52h 24m
2 stops
KTM9:45 pmKathmandu Tribhuvan
Jul 22
KTM11:00 pmKathmandu Tribhuvan
32h 11m
2 stops
STL8:26 pmLambert-St Louis
$1,998

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 29, 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

Wed 2/25

7:00 am-4:25 pm

2 stops45h 40m

Kathmandu Tribhuvan

Wed 3/4

7:05 pm-5:40 pm

2 stops34h 20m

$1,334

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/2

12:05 pm-9:45 pm

2 stops46h 55m

Kathmandu Tribhuvan

Thu 5/7

11:00 pm-11:59 pm

2 stops35h 44m

$1,418

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 3/13

2:00 pm-7:55 am

2 stops31h 10m

Kathmandu Tribhuvan

Fri 3/20

5:40 pm-12:44 pm

2 stops29h 49m

$1,524

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 5/12

7:00 am-5:00 pm

2 stops47h 15m

Kathmandu Tribhuvan

Tue 8/18

6:00 pm-11:59 pm

2 stops40h 44m

$1,530

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Thu 4/2

4:05 pm-10:45 am

3 stops31h 55m

Kathmandu Tribhuvan

Thu 5/7

9:10 pm-8:05 pm

3 stops33h 40m

$1,580

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 5/15

6:00 am-5:00 pm

2 stops48h 15m

Kathmandu Tribhuvan

Mon 6/15

6:00 pm-5:03 pm

2 stops33h 48m

$1,705

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 5/12

6:11 pm-7:55 am

2 stops26h 59m

Kathmandu Tribhuvan

Tue 8/18

6:00 pm-7:33 pm

2 stops36h 18m

$1,737

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Tue 6/16

12:23 pm-2:35 pm

2 stops39h 27m

Kathmandu Tribhuvan

Thu 7/23

9:00 am-4:40 pm

2 stops42h 25m

$1,748

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Fri 7/10

11:20 am-4:45 pm

2 stops42h 40m

Kathmandu Tribhuvan

Fri 8/7

6:00 pm-12:09 pm

2 stops28h 54m

$1,759

St. LouisKathmandu

STL - KTM

STLKTM

Lambert-St Louis

Sat 5/16

6:00 am-9:45 pm

2 stops29h 00m

Kathmandu Tribhuvan

Tue 6/16

11:00 pm-6:34 pm

2 stops30h 19m

$1,770

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 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

31h 10m

Direct flights

None
The fastest flight from St. Louis to Kathmandu takes 31h 10m
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 31h 10m 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 $1,301Free CancellationRating
7.4
3,727 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