$447 Cheap Flights from Khon Kaen (KKC) to Seoul (ICN)

View $447 flight on Mon, Aug 18, 2025Opens in a new window

Popular airlines from Khon Kaen (KKC) to Incheon Intl. Airport (ICN)

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Cheap Flights from Khon Kaen to Seoul (KKC-ICN)

Prices were available within the past 7 days and start at $447 for one-way flights and $734 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$734 Roundtrip, found 6 days ago
$734
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $734 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$747 Roundtrip, found 6 days ago
$747
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $747 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$791 Roundtrip, found 6 days ago
$791
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $791 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$796 Roundtrip, found 6 days ago
$796
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $796 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$803 Roundtrip, found 6 days ago
$803
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $803 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$836 Roundtrip, found 6 days ago
$836
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $836 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$848 Roundtrip, found 6 days ago
$848
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $848 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$853 Roundtrip, found 6 days ago
$853
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $853 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$1,022 Roundtrip, found 6 days ago
$1,022
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $1,022 found 6 days ago
Thai Airways International
Wed, Oct 15 - Wed, Oct 29
KKC
Khon Kaen
ICN
Seoul
$1,023 Roundtrip, found 6 days ago
$1,023
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Wed, Oct 15 from Khon Kaen to Seoul, returning Wed, Oct 29, priced at $1,023 found 6 days ago
Flights from Khon Kaen (KKC) to Seoul (ICN)
Origin airport
Khon Kaen
Destination airport
Incheon Intl.
Roundtrip price
$734
Distance
2043 mi

Khon Kaen to Seoul Flights

The cheapest times to fly from Khon Kaen to Seoul

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 Khon Kaen to Seoul are during the month of October. You can find some of the cheapest flights from Khon Kaen to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Khon Kaen to Seoul

Sunday is one of the best days to book for cheap flights from Khon Kaen to Seoul: 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 Khon Kaen to Seoul

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 Khon Kaen to Seoul in 2025. You can also book with separate airlines for your outbound and return journeys, from $447 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 Khon Kaen to Seoul 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 Khon Kaen to Seoul 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.

 

Frequently asked questions

How much does a flight from Khon Kaen Airport (KKC) to Incheon Intl. Airport (ICN) cost?
Discover the latest flight deals from KKC to ICN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from KKC to ICN?
The cheapest flights from KKC to ICN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from KKC to ICN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from KKC to ICN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Khon Kaen Airport (KKC) to Incheon Intl. Airport (ICN)?
Nonstop flights from Khon Kaen Airport (KKC) to Incheon Intl. Airport (ICN) 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 dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from KKC to ICN?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Khon Kaen Airport (KKC) to Incheon Intl. Airport (ICN)?
To avoid possible delays on the Khon Kaen Airport (KKC) to Incheon Intl. Airport (ICN) route, travel before 3 PM. Later flights are 22% more likely to be canceled.**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 Khon Kaen Airport (KKC) to Incheon Intl. Airport (ICN) last-minute?
Booking your ticket from KKC to ICN just before your journey is usually more expensive. But if you're flexible with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a KKC to ICN flight and hotel package?
You'll generally save money by booking a KKC to ICN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your preferred flights and accommodations, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Khon Kaen Airport (KKC) to Incheon Intl. Airport (ICN)?
In most cases, you're able to reschedule or cancel your KKC to ICN flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need more information, visit our Customer Service portal.

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*Available to One Key members.