Cheap flights from Kathmandu to Seoul

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Flight deals from Kathmandu to Seoul

Looking for a cheap last-minute deal or the best return flight from Kathmandu Airport to Seoul? If you want to travel next month, return fares start from $678. Find the lowest prices on one-way and return tickets right here.

Seoul.$314 per passenger.Departing Wed, 30 Sep.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Wed, 30 Sep, arriving in Gimpo International.Price includes taxes and charges.From $314, select.

Seoul.$340 per passenger.Departing Mon, 7 Dec.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Mon, 7 Dec, arriving in Incheon International.Price includes taxes and charges.From $340, select.

Seoul.$345 per passenger.Departing Mon, 15 Mar.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Mon, 15 Mar, arriving in Incheon International.Price includes taxes and charges.From $345, select.

Seoul.$358 per passenger.Departing Tue, 7 Jul.One-way flight with China Eastern.Outbound indirect flight with China Eastern, departs from Kathmandu on Tue, 7 Jul, arriving in Incheon International.Price includes taxes and charges.From $358, select.

Seoul.$364 per passenger.Departing Sat, 27 Jun.One-way flight with Nepal Airlines.Outbound indirect flight with Nepal Airlines, departs from Kathmandu on Sat, 27 Jun, arriving in Incheon International.Price includes taxes and charges.From $364, select.

Seoul.$364 per passenger.Departing Wed, 20 Jan.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Wed, 20 Jan, arriving in Incheon International.Price includes taxes and charges.From $364, select.

Seoul.$387 per passenger.Departing Sun, 29 Nov.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Sun, 29 Nov, arriving in Incheon International.Price includes taxes and charges.From $387, select.

Seoul.$394 per passenger.Departing Mon, 12 Oct.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Mon, 12 Oct, arriving in Incheon International.Price includes taxes and charges.From $394, select.

Seoul.$406 per passenger.Departing Wed, 19 Aug.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Wed, 19 Aug, arriving in Incheon International.Price includes taxes and charges.From $406, select.

Seoul.$433 per passenger.Departing Mon, 1 Feb.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Mon, 1 Feb, arriving in Incheon International.Price includes taxes and charges.From $433, select.

Seoul.$452 per passenger.Departing Fri, 22 May.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Kathmandu on Fri, 22 May, arriving in Incheon International.Price includes taxes and charges.From $452, select.

Seoul.$554 per passenger.Departing Sun, 26 Apr.One-way flight with IndiGo.Outbound indirect flight with IndiGo, departs from Kathmandu on Sun, 26 Apr, arriving in Gimpo International.Price includes taxes and charges.From $554, select.

Seoul.$708 per passenger.Departing Sat, 4 Jul.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Kathmandu on Sat, 4 Jul, arriving in Incheon International.Price includes taxes and charges.From $708, select.

Seoul.$709 per passenger.Departing Sat, 27 Jun.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Kathmandu on Sat, 27 Jun, arriving in Incheon International.Price includes taxes and charges.From $709, select.

Seoul.$717 per passenger.Departing Tue, 2 Mar.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Kathmandu on Tue, 2 Mar, arriving in Incheon International.Price includes taxes and charges.From $717, select.

Seoul.$720 per passenger.Departing Sat, 1 Aug.One-way flight with Korean Air.Outbound direct flight with Korean Air departs from Kathmandu on Sat, 1 Aug, arriving in Incheon International.Price includes taxes and charges.From $720, select.

Find the cheapest month to fly from Kathmandu to Seoul

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kathmandu to Seoul flights are currently cheapest in September.

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Direct flights from Kathmandu to Seoul

Alternative Kathmandu to Seoul routes

Looking for the cheapest, fastest or easiest route from Kathmandu to Seoul? You could fly into the following airports instead.

Gimpo International

17km from central Seoul

ClosestCheapest

from $314

Search flights

Incheon International

48km from central Seoul

from $340

Search flights

Kathmandu to Seoul: Flight information

The things to know before you go.

Cheapest flight found	$314
Cheapest month to fly	September
Average flight time	6 hrs, 12 mins
Most popular airline	Korean Air
Average flights per week	2

Finding cheap flights from Kathmandu to Seoul: Frequently asked questions

How many airports are there in Seoul?

There are 2 airports in Seoul: Gimpo International and Incheon International.

How much are return flights from Kathmandu to Seoul?

The best price we found for a return flight from Kathmandu to Seoul is $628. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Kathmandu to Seoul?

6 hours and 12 minutes is the average flight time from Kathmandu to Seoul.

Which airlines fly direct from Kathmandu to Seoul?

Korean Air flies direct from Kathmandu to Seoul.

How many flights are there a week from Kathmandu to Seoul?

As of April 2026, there are 2 flights per week flying from Kathmandu to Seoul.

When is the cheapest time to fly from Kathmandu to Seoul?

The cheapest month to fly from Kathmandu to Seoul is usually June.

Which is the cheapest airport to fly into in Seoul?

If you're flying from Kathmandu Airport, the cheapest airport near Seoul is Gimpo International – which is 17.1 km away from the centre of Seoul. We've found flights into this airport from $628.

Which upcoming date is cheapest to fly from Kathmandu Airport to Seoul on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kathmandu Airport to Seoul on Wednesday, 10 June 2026.

Can I get a direct flight from Kathmandu Airport to Seoul?

Yes – the average flight time is 6 hours and 12 minutes.

How can I get the best flight deal from Kathmandu Airport to Seoul?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seoul but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Seoul?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seoul is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Seoul?

In April, the average temperature is usually around 10°C. August is typically the warmest month in Seoul, when it usually averages around 28°C. You can expect the least rain in January. The coldest month is January, with temperatures averaging -8°C. The rainiest month is July.

Which is the cheapest airline to fly from Kathmandu Airport to Seoul with?

Currently, Thai LionAir and Korean Air offer the cheapest flight tickets to Seoul.

Travelling from Kathmandu Tribhuvan International Airport (KTM) to Seoul: what you need to know

Jump on a direct flight from Kathmandu Tribhuvan International Airport to Seoul and you'll be travelling for around 7 hours 10 minutes.
Kathmandu Tribhuvan International Airport is located in Kathmandu. Based in the UTC+9 timezone, Seoul is three hours 12 minutes ahead of Kathmandu.
Kathmandu Tribhuvan International Airport (KTM) to Seoul Incheon International Airport (ICN) is the most popular route, with two departures a week to pick from. If you have things to do before heading off, the last flight from KTM to ICN is with Korean Air at 19:20. Go for the first departure with Korean Air at 19:20 if you want to fly out earlier.
For a relaxed start to your KTM to Seoul flight, leave enough time to check in and find your gate. Arriving two hours before international departures and one hour before domestic flights is the standard rule.
During popular months such as February, you'll want to get to the airport even earlier. Arrive two hours before domestic departures and four hours ahead of international flights when you travel during peak periods in general.
You can book a direct Kathmandu Tribhuvan International Airport to Seoul ticket. Begin your journey at KTM and arrive at Seoul Incheon International Airport (ICN).
Book your seat with Korean Air. This airline operates direct flights from Kathmandu Tribhuvan International Airport to Seoul.
Stopovers are the ideal opportunity to break up your trip and perhaps even explore another city. When browsing for plane tickets from KTM to Seoul, deselect the 'Direct flights only' box to see where you can visit along the way. Popular options include:
- Chengdu Tianfu International Airport (TFU)
- Bangkok Suvarnabhumi International Airport (BKK)
- Singapore Changi Airport (SIN)
Located around 3 kilometres from the centre of Kathmandu, KTM can be reached in about 30 minutes by car (depending on traffic). The journey on public transport takes roughly 40 minutes.
Want a relaxed start to your holiday? Stay near KTM. Whether you're boarding an early flight from Kathmandu Tribhuvan International Airport to Seoul or want to avoid feeling rushed, these hotels put convenience first:
51% of flights leaving from Kathmandu Tribhuvan International Airport touch down at their destination on schedule.

How to find the cheapest flights from Kathmandu Tribhuvan International Airport (KTM) to Seoul

$314 is currently the lowest price for a one-way Kathmandu Tribhuvan International Airport to Seoul flight. A return plane ticket starts at $628. These prices can change depending on availability.
Booking early is often the key to scoring a cheap flight from KTM to Seoul. Airlines adjust prices based on demand, so the closer you get to departure, the more you'll likely spend.
Finding cheap tickets from Kathmandu Tribhuvan International Airport to Seoul is easier if you can be flexible with your dates. Try using the 'Whole month' search tool to get the best prices throughout the month and pick up a sweet deal.
Save time looking for cheap flights from KTM to Seoul by setting up a Price Alert. We'll send you an email or notification on the app when a new discounted fare appears.
Choose your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Kathmandu Tribhuvan International Airport to Seoul by 'Fastest,' 'Cheapest' or 'Best.'

Airports in Seoul

Seoul Incheon International Airport (ICN)

The distance from Seoul Incheon International Airport (ICN) to central Seoul is roughly 48 kilometres. It'll take you around 1 hour 5 minutes to get to the centre driving.
If you're taking public transport, expect a journey time of about 50 minutes.
The last thing you need is a lengthy journey to your hotel if you're landing late on a flight from Kathmandu Tribhuvan International Airport to Seoul. Check in to one of these accommodation options near ICN instead:
Lock in the best deal by reserving your ride from Seoul Incheon International Airport about four weeks in advance of your flight from KTM to Seoul.

Seoul Gimpo International Airport (GMP)

Seoul Gimpo International Airport (GMP) is around 16 kilometres from central Seoul. Once you've hopped off your flight from Kathmandu Tribhuvan International Airport to Seoul, it'll take you around 30 minutes to get to the heart of the city in a ride-share or taxi.
Public transport will get you there in about 35 minutes.
There are some comfortable places to rest your head close to GMP. Unwind and get cosy after your KTM to Seoul flight at any of these well-located options:
Avoid potential price surges. Securing your ride one week ahead of your arrival at GMP will help you save.

Best time to go to Seoul

It's time to choose your trip dates for your flight from Kathmandu Tribhuvan International Airport to Seoul. January is the busiest month to travel to Seoul. If you prefer a more relaxed vibe, go in December.
The warmest month in Seoul is August, with temperatures ranging between 19ºC (66ºF) and 32ºC (90ºF). Book your Kathmandu Tribhuvan International Airport to Seoul plane ticket then if this is the type of weather you enjoy.
Look for cheap tickets from KTM to Seoul in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 4ºC (39ºF) on average.

More about Seoul

Start your Seoul trip right by choosing the ideal place to stay. After booking your flight from Kathmandu Tribhuvan International Airport to Seoul, explore our range of hotels including:
Bukchon Hanok Village and Gyeongbokgung Palace are a couple of popular attractions to add to your Seoul must-do list. Keep the adventure rolling by checking out N Seoul Tower.

Explore more of South Korea

Busan is just one of the many places in South Korea waiting to be discovered once you've seen the sights of Seoul. Around 322 kilometres away to the southeast, well-known attractions include Gamcheon Culture Village, Haeundae Beach and Beautiful View Busan - Diamond Bridge.
If you're looking to explore another great destination in South Korea, consider Daegu, about 241 kilometres southeast of Seoul. Alive Aquarium Daegu, Nature Park and Seonsa Historical Park are the start of reasons to visit.