$148 Cheap Flights from Seoul (GMP) to Kathmandu (KTM)

View $148 flight on Thu, Jan 15, 2026Opens in a new window

Popular airlines from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM)

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Cheap Flights from Seoul to Kathmandu (GMP-KTM)

Prices were available within the past 7 days and start at $148 for one-way flights and $422 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Fri, Jan 30 - Wed, Mar 4
GMP
Seoul
KTM
Kathmandu
$422 Roundtrip, found 12 hours ago
$422
Roundtrip
found 12 hours ago
Select China Eastern Airlines flight, departing Fri, Jan 30 from Seoul to Kathmandu, returning Wed, Mar 4, priced at $422 found 12 hours ago
China Eastern Airlines
Mon, Dec 29 - Fri, Jan 16
GMP
Seoul
KTM
Kathmandu
$588 Roundtrip, found 2 days ago
$588
Roundtrip
found 2 days ago
Select China Eastern Airlines flight, departing Mon, Dec 29 from Seoul to Kathmandu, returning Fri, Jan 16, priced at $588 found 2 days ago
China Eastern Airlines
Thu, Feb 5 - Tue, Feb 10
GMP
Seoul
KTM
Kathmandu
$616 Roundtrip, found 4 days ago
$616
Roundtrip
found 4 days ago
Select China Eastern Airlines flight, departing Thu, Feb 5 from Seoul to Kathmandu, returning Tue, Feb 10, priced at $616 found 4 days ago
China Eastern Airlines
Mon, Jan 26 - Fri, Jan 30
GMP
Seoul
KTM
Kathmandu
$619 Roundtrip, found 2 days ago
$619
Roundtrip
found 2 days ago
Select China Eastern Airlines flight, departing Mon, Jan 26 from Seoul to Kathmandu, returning Fri, Jan 30, priced at $619 found 2 days ago
China Eastern Airlines
Thu, Feb 5 - Tue, Feb 10
GMP
Seoul
KTM
Kathmandu
$695 Roundtrip, found 4 days ago
$695
Roundtrip
found 4 days ago
Select China Eastern Airlines flight, departing Thu, Feb 5 from Seoul to Kathmandu, returning Tue, Feb 10, priced at $695 found 4 days ago
China Eastern Airlines
Sun, Feb 1 - Sun, Feb 8
GMP
Seoul
KTM
Kathmandu
$729 Roundtrip, found 6 days ago
$729
Roundtrip
found 6 days ago
Select China Eastern Airlines flight, departing Sun, Feb 1 from Seoul to Kathmandu, returning Sun, Feb 8, priced at $729 found 6 days ago
China Eastern Airlines
Fri, Mar 6 - Sun, Mar 15
GMP
Seoul
KTM
Kathmandu
$887 Roundtrip, found 5 days ago
$887
Roundtrip
found 5 days ago
Select China Eastern Airlines flight, departing Fri, Mar 6 from Seoul to Kathmandu, returning Sun, Mar 15, priced at $887 found 5 days ago
China Eastern Airlines
Sun, Feb 1 - Sun, Feb 8
GMP
Seoul
KTM
Kathmandu
$1,064 Roundtrip, found 6 days ago
$1,064
Roundtrip
found 6 days ago
Select China Eastern Airlines flight, departing Sun, Feb 1 from Seoul to Kathmandu, returning Sun, Feb 8, priced at $1,064 found 6 days ago
China Eastern Airlines
Thu, Feb 5 - Thu, Feb 12
GMP
Seoul
KTM
Kathmandu
$1,085 Roundtrip, found 2 days ago
$1,085
Roundtrip
found 2 days ago
Select China Eastern Airlines flight, departing Thu, Feb 5 from Seoul to Kathmandu, returning Thu, Feb 12, priced at $1,085 found 2 days ago
Asiana Airlines
Sun, Feb 1 - Sun, Feb 8
GMP
Seoul
KTM
Kathmandu
$1,422 Roundtrip, found 6 days ago
$1,422
Roundtrip
found 6 days ago
Select Asiana Airlines flight, departing Sun, Feb 1 from Seoul to Kathmandu, returning Sun, Feb 8, priced at $1,422 found 6 days ago

Frequently asked questions

How much does a flight from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM) cost?
Grab a cheap one-way flight from $148 or cheap return flight from $422 from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM)?
January is the most affordable month to fly from GMP to KTM. Avoiding peak travel times is often the key to finding better fares.
Which airlines fly direct from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM)?
You can't fly direct to Tribhuvan Intl. Airport (KTM) from Seoul (GMP-Gimpo Intl.). However, you can easily reach Kathmandu without any layovers by taking off from Incheon Intl. Airport (ICN).
What is the cheapest airline that flies from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM)?
To find the cheapest airline flying from GMP to KTM, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM)?
Direct flights from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GMP to KTM?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM)?
To land at Tribhuvan Intl. Airport (KTM) on schedule, select a flight that takes off from Gimpo Intl. Airport (GMP) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM) last-minute?
Last-minute bookings from GMP to KTM are typically more expensive. To secure the best prices, start looking for flights as early as possible. That being said, if you can play around with your travel dates, you may find a cheap ticket right before your journey.
Is it cheaper to book a GMP to KTM flight and hotel package?
Compared with arranging hotels and flights separately, booking a GMP to KTM flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the hassle out of travel planning. Simply pick your flights and choose from our wide range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Gimpo Intl. Airport (GMP) to Tribhuvan Intl. Airport (KTM)?
If you reserved your GMP to KTM flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport
Gimpo Intl.
Destination airport
Tribhuvan Intl.
Airlines serving
China Eastern Airlines
Roundtrip price
$422
Distance
2484 mi

Book with confidence

Seoul to Kathmandu Flights

The cheapest times to fly from Seoul to Kathmandu

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seoul to Kathmandu are during the month of January. You can find some of the cheapest flights from Seoul to Kathmandu with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seoul to Kathmandu

Sunday is one of the best days to book for cheap flights from Seoul to Kathmandu: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seoul to Kathmandu

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seoul to Kathmandu in 2026. You can also book with separate airlines for your outbound and return journeys, from $148 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seoul to Kathmandu flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seoul to Kathmandu airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seoul to Kathmandu Flights

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*Available to One Key members.