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$308+ Cheap flights from Kathmandu (KTM) to Seoul (SEL)

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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — SEL
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Kathmandu to Seoul

Discover tips and strategies to find the most affordable flight options for your journey from Kathmandu (KTM) to Seoul (SEL). 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 August 18, 2025.

Round-trip from

$677
(Priceline)

One-way from

$308
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$577

Good round-trip deal

$1,279 or less

Good one-way deal

$931 or less
From Kathmandu Tribhuvan to Seoul (SEL)
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One-way flight from Kathmandu Tribhuvan to Seoul (SEL)
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Highest demand for flights based on searches. 30% potential increase in price ($361 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($60 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Kathmandu Tribhuvan to Seoul (SEL).
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Price to beat on a one-way flight from Kathmandu Tribhuvan to Seoul (SEL).
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Find flight deals from Kathmandu to Seoul

Cheapest flights from Kathmandu to Seoul
Explore the most affordable flight options available from Kathmandu to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Priceline deal was found by Cheapflights users on 8/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/24:35 pmKTM - GMP
2 stops39h 10mChina Eastern
Sat 9/68:50 pmGMP - KTM
2 stops22h 00mChina Eastern
Deal found 8/18$677
This Mytrip deal was found by Cheapflights users on 8/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1411:30 pmKTM - GMP
2 stops15h 10mMultiple Airlines
Sun 9/211:05 pmGMP - KTM
2 stops28h 10mMultiple Airlines
Deal found 8/17$838

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kathmandu to Seoul 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 August 18, 2025.
Use the filters below to find and compare flights from Kathmandu to Seoul that are best for you.

Fly from

Kathmandu

Fly to

Seoul

Route

Depart

Return

Price

KathmanduSeoul

KTM - GMP

KTMGMP

Kathmandu Tribhuvan

Tue 9/2

4:35 pm-11:00 am

2 stops39h 10m

Seoul Gimpo Intl

Sat 9/6

8:50 pm-3:35 pm

2 stops22h 00m

$677

KathmanduSeoul

KTM - GMP

KTMGMP

Kathmandu Tribhuvan

Sun 9/14

11:30 pm-5:55 pm

2 stops15h 10m

Seoul Gimpo Intl

Sun 9/21

1:05 pm-2:00 pm

2 stops28h 10m

$838

KathmanduSeoul

KTM - GMP

KTMGMP

Kathmandu Tribhuvan

Wed 9/17

3:00 pm-3:10 pm

3 stops44h 55m

$308

KathmanduSeoul

KTM - GMP

KTMGMP

Kathmandu Tribhuvan

Mon 9/1

3:00 pm-8:55 pm

3 stops50h 40m

$343

KathmanduSeoul

KTM - GMP

KTMGMP

Kathmandu Tribhuvan

Mon 9/1

11:55 am-1:05 pm

2 stops21h 55m

$367

KathmanduSeoul

KTM - GMP

KTMGMP

Kathmandu Tribhuvan

Mon 9/1

4:35 pm-11:00 am

3 stops39h 10m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from Kathmandu to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Kathmandu 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 Kathmandu to Seoul

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

Currently, February is the cheapest month in which you can book a flight from Kathmandu to Seoul (average of $992). Flying from Kathmandu to Seoul in December is currently the most expensive (average of $1,635). 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 KTM to SEL?

Find hourly flight availability from Kathmandu to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Kathmandu to Seoul in the morning. If you’re flexible enough to do this you can expect to save up to 66% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated August 18, 2025.
Read through reviews of airlines operating flights from Kathmandu to Seoul, such as Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,131 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very good
1,131 reviews
Korean Air
8.4
Very good
1,131 reviews

Food

8.1

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Kathmandu to Seoul. 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 from for flights from Kathmandu to Seoul?

    Kathmandu Tribhuvan (KTM), located 2.5 mi from the city center, is the airport you fly out of when you book flights from Kathmandu to Seoul. 1 airline have flights from Tribhuvan to Seoul on a regular basis. Booking flights from Kathmandu Tribhuvan to Seoul should not be difficult; the airport handles an average of 0 outbound flights to Seoul per day.

  • How popular is this Kathmandu to Seoul flight route?

    Within the past month, 10 users have taken a look at flights from Kathmandu Tribhuvan to Seoul.

  • How long is the flight from Kathmandu to Seoul?

    For as low as $677, China Eastern can have you in Seoul from Kathmandu in 39h 10m. There are 2482 mi between Kathmandu and Seoul.

  • What is the cheapest airline to fly from Kathmandu to Seoul round-trip?

    Flying on Korean Air is currently your cheapest option to Seoul, with prices starting at $669. Korean Air is 18% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Kathmandu to Seoul?

    Looking at all options, your cheapest flight can be booked for $580. While the most popular route (Kathmandu Tribhuvan - Seoul Gimpo Intl) can be booked for $966 on average our data indicates $1,387 when flying from Kathmandu to Seoul.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kathmandu to Seoul 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 Kathmandu to Seoul?

    Currently, February is the cheapest month in which you can book a flight from Kathmandu to Seoul (average of $992). Flying from Kathmandu to Seoul in December is currently the most expensive (average of $1,635). 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

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.

Top airline flying from Kathmandu to Seoul

Discover the top airline that operate flights from Kathmandu to Seoul. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$669Average$821FlexibilityNo cancel feeOn-time81%

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