HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kathmandu

$170+ Cheap flights from Seoul (SEL) to Kathmandu (KTM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — KTM
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seoul to Kathmandu with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Seoul to Kathmandu Tribhuvan are usually found in January or March, booked 13 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Seoul to Kathmandu

Cheapest flights from Seoul to Kathmandu
Explore the most affordable flight options available from Seoul to Kathmandu. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.

This China Eastern deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:45 am
ICN
-
KTM
1 stop11h 05m
China Eastern
Tue 7/214:35 pm
KTM
-
ICN
2 stops24h 55m
China Eastern
Deal found 7/13$499
This China Eastern deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:15 pm
ICN
-
KTM
2 stops30h 35m
China Eastern
Sun 8/24:35 pm
KTM
-
ICN
2 stops21h 35m
China Eastern
Deal found 7/13$507
This FlightHub deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:20 pm
ICN
-
KTM
2 stops26h 30m
China Eastern
Sat 10/315:00 pm
KTM
-
ICN
1 stop26h 30m
China Eastern
Deal found 7/15$508
This FlightHub deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:55 pm
ICN
-
KTM
1 stop23h 15m
Air China
Sat 10/3111:55 am
KTM
-
ICN
1 stop21h 45m
Air China
Deal found 7/15$509
This FlightHub deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/204:15 pm
ICN
-
KTM
3 stops50h 35m
China Eastern
Fri 10/305:00 pm
KTM
-
ICN
2 stops41h 00m
China Eastern
Deal found 7/17$512
This China Eastern deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:50 pm
ICN
-
KTM
3 stops27h 00m
China Eastern
Sat 8/224:35 pm
KTM
-
ICN
3 stops48h 50m
China Eastern
Deal found 7/17$518
This Booking.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:45 pm
ICN
-
KTM
1 stop15h 25m
Air China
Wed 12/911:55 am
KTM
-
ICN
1 stop21h 45m
Air China
Deal found 7/14$519
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/151:10 pm
ICN
-
KTM
2 stops29h 40m
Multiple Airlines
Wed 7/2211:45 am
KTM
-
ICN
1 stop22h 30m
Multiple Airlines
Deal found 7/14$521
This China Eastern deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:50 pm
GMP
-
KTM
2 stops22h 00m
China Eastern
Tue 8/114:35 pm
KTM
-
GMP
2 stops39h 10m
China Eastern
Deal found 7/15$548
This China Eastern deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2212:00 pm
GMP
-
KTM
2 stops30h 50m
China Eastern
Sun 8/24:35 pm
KTM
-
GMP
2 stops39h 10m
China Eastern
Deal found 7/16$557
This China Eastern deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Eastern is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:50 pm
GMP
-
KTM
2 stops22h 00m
China Eastern
Sun 8/234:35 pm
KTM
-
GMP
2 stops39h 10m
China Eastern
Deal found 7/17$680
This Gotogate deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:50 pm
GMP
-
KTM
2 stops22h 00m
Multiple Airlines
Sat 8/2911:55 am
KTM
-
GMP
2 stops21h 55m
Multiple Airlines
Deal found 7/15$691

Find flight deals from Seoul to Kathmandu

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Kathmandu (KTM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$507
(China Eastern)

One-way from

$170
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$544

Good round-trip deal

$896 or less

Good one-way deal

$388 or less
Provider with most accurate pricing for Seoul (SEL)-Kathmandu Tribhuvan flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seoul (SEL)-Kathmandu Tribhuvan flights.
Search Deals
From Seoul (SEL) to Kathmandu Tribhuvan
Search Deals
One-way flight from Seoul (SEL) to Kathmandu Tribhuvan
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to Kathmandu Tribhuvan.
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to Kathmandu Tribhuvan.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seoul 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, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
Use the filters below to find and compare flights from Seoul to Kathmandu that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Wed 7/29

3:50 pm-3:35 pm

3 stops27h 00m

Kathmandu Tribhuvan

Sat 8/22

4:35 pm-8:40 pm

3 stops48h 50m

$518

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Mon 9/14

3:50 pm-3:35 pm

3 stops27h 00m

Kathmandu Tribhuvan

Sat 10/31

5:00 pm-11:55 am

2 stops39h 40m

$545

SeoulKathmandu

GMP - KTM

GMPKTM

Seoul Gimpo Intl

Wed 7/29

8:50 pm-3:35 pm

2 stops22h 00m

Kathmandu Tribhuvan

Tue 8/11

4:35 pm-11:00 am

2 stops39h 10m

$548

SeoulKathmandu

GMP - KTM

GMPKTM

Seoul Gimpo Intl

Wed 7/22

12:00 pm-3:35 pm

2 stops30h 50m

Kathmandu Tribhuvan

Sun 8/2

4:35 pm-11:00 am

2 stops39h 10m

$557

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Sun 10/11

8:15 pm-3:35 pm

2 stops46h 35m

Kathmandu Tribhuvan

Thu 12/10

5:00 pm-10:45 pm

1 stop26h 30m

$573

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Mon 10/12

8:55 am-3:35 pm

3 stops33h 55m

Kathmandu Tribhuvan

Wed 11/25

5:00 pm-11:55 am

3 stops39h 40m

$579

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Sat 10/10

8:15 pm-3:35 pm

2 stops22h 35m

Kathmandu Tribhuvan

Sun 11/22

5:00 pm-1:15 pm

3 stops41h 00m

$582

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Sat 10/10

8:15 pm-3:35 pm

2 stops22h 35m

Kathmandu Tribhuvan

Fri 11/20

5:00 pm-9:10 pm

3 stops48h 55m

$583

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Sun 10/11

8:15 pm-3:35 pm

2 stops46h 35m

Kathmandu Tribhuvan

Wed 11/25

5:00 pm-12:15 pm

3 stops40h 00m

$585

IncheonKathmandu

ICN - KTM

ICNKTM

Incheon Intl

Thu 9/24

7:45 am-3:35 pm

1 stop11h 05m

Kathmandu Tribhuvan

Mon 10/26

5:00 pm-5:25 pm

3 stops45h 10m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

Showing 1-10 of 28 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Seoul to Kathmandu

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Kathmandu in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
BudgetAirPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seoul-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-Kathmandu flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seoul-Kathmandu flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-Kathmandu flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seoul to Kathmandu

Have a flexible travel schedule? Discover the best time to fly to Kathmandu from Seoul with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seoul to Kathmandu

What is the cheapest month to book a flight from Seoul to Kathmandu?

Currently, January is the cheapest month in which you can book a flight from Seoul to Kathmandu (average of $445). Flying from Seoul to Kathmandu in February is currently the most expensive (average of $628). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEL to KTM?

Find hourly flight availability from Seoul to Kathmandu. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 18, 2026.

When flying from Seoul to Kathmandu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Seoul to Kathmandu?

What’s the top layover airport for flights from Seoul to Kathmandu?

Share of 1-stop round-trip flights from Seoul to Kathmandu chosen by Cheapflights users in the past 12 months, using the same layover each way.

Guangzhou (CAN) – chosen by Cheapflights users on 83% of 1-stop itineraries from Seoul to Kathmandu on Cheapflights.

What’s the cheapest layover airport for flights from Seoul to Kathmandu?

Average round-trip fare for 1-stop flights from Seoul to Kathmandu, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Kunming (KMG) is the most affordable 1-stop option, with an average round-trip price of $506.

What’s the fastest layover option from Seoul to Kathmandu?

Shortest average travel time for 1-stop one-way flights from Seoul to Kathmandu, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Guangzhou (CAN) have the shortest average one-way travel time for 1-stop routes: 10h 34m.

Which airport typically offers the quickest layover for flights from Seoul to Kathmandu?

Average layover duration for 1-stop one-way flights from Seoul to Kathmandu, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Hong Kong (HKG) offer the fastest connection on this route, with an average layover time of 2h 08m.

How far ahead should I book a flight from Seoul to Kathmandu?

The best time to book flights from Seoul to Kathmandu is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Kathmandu

Get insights into the airlines that provide service to Kathmandu. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kathmandu. Reviews last updated July 18, 2026.
Get a feel of what it's like to fly with Korean Air,Thai Airways, andChina Southern from Seoul to Kathmandu by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,221 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Thai Airways
7.9
Good
409 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
China Southern
7.4
Good
162 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Air China
7.4
Good
156 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
China Eastern
7.3
Good
228 reviews
Korean Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.5

Entertainment

8.2

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Seoul to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Kathmandu from Seoul?

    For a flight from Seoul to Kathmandu, you will be flying into Tribhuvan. Kathmandu Tribhuvan (KTM) is just 2.5 mi from the center of the city. Tribhuvan is the only Kathmandu airport and it handles 0 inbound flights from Seoul per day. 6 airlines have flights to Kathmandu Tribhuvan from Seoul on a regular basis.

  • How long is the flight from Seoul to Kathmandu?

    Departing from Seoul to Kathmandu will take you 27h. Airlines will cover a distance of 2463 mi.

  • What are the cheapest airlines flying from Seoul to Kathmandu round-trip?

    Flying on Air China is currently your cheapest option to Kathmandu, with prices starting at $293. Additional round-trip tickets that might be worth considering are offered by China Eastern and China Southern, with the lowest prices starting at $294 and $408, respectively. These flights start at 42% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seoul to Kathmandu one-way?

    For one-way options, check prices for China Eastern. According to our data, you can fly for as low as $144. Users have also found prices from $178 and $268 on China Southern and Air India, respectively.

  • What are the cheapest flights from Seoul to Kathmandu?

    On average you can expect to pay $651 for a flight from Seoul to Kathmandu. The cheapest flight overall is $388 while the most popular route, (Incheon Intl - Kathmandu Tribhuvan) is currently priced at $351.

  • Can I find deals for flights from Seoul to Kathmandu that include hotel bookings?

    Yes. In addition to deals on Seoul to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Kathmandu?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Kathmandu.

  • Can I find deals for business class flights from Seoul to Kathmandu?

    Yes. Cheapflights offers flight deals from Seoul to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seoul to Kathmandu?

    Currently, January is the cheapest month in which you can book a flight from Seoul to Kathmandu (average of $445). Flying from Seoul to Kathmandu in February is currently the most expensive (average of $628). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Kathmandu?

Book flights to Kathmandu if you plan to visit one of these locations
Nagarkot

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seoul to Kathmandu

See prices for flight routes from nearby airports that may be better suited for you.
Incheon Intl to Kathmandu flights

Top 6 airlines flying from Seoul to Kathmandu

Discover the top 6 airlines that operate flights from Seoul to Kathmandu. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$293Average$366FlexibilityNo cancel feeOn-time67%
China EasternCheapest$294Average$406FlexibilityNo cancel feeOn-time62%
China SouthernCheapest$408Average$591FlexibilityNo cancel feeOn-time69%
Air IndiaCheapest$462Average$595FlexibilityNo cancel feeOn-timeN/A
Thai AirwaysCheapest$600Average$671FlexibilityNo cancel feeOn-time77%
Korean AirCheapest$664Average$915FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.