$408 Cheap Flights from Seoul (ICN) to Khon Kaen (KKC)

View $408 flight on Thu, Oct 16, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

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

Prices were available within the past 7 days and start at $408 for one-way flights and $383 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Wed, Oct 15 - Tue, Oct 21
ICN
Seoul
KKC
Khon Kaen
$383 Roundtrip, found 4 days ago
$383
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Wed, Oct 15 from Seoul to Khon Kaen, returning Tue, Oct 21, priced at $383 found 4 days ago
Asiana Airlines
Mon, Sep 8 - Wed, Sep 24
ICN
Seoul
KKC
Khon Kaen
$394 Roundtrip, found 4 days ago
$394
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Mon, Sep 8 from Seoul to Khon Kaen, returning Wed, Sep 24, priced at $394 found 4 days ago
Asiana Airlines
Mon, Sep 1 - Mon, Sep 15
ICN
Seoul
KKC
Khon Kaen
$398 Roundtrip, found 4 days ago
$398
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Mon, Sep 1 from Seoul to Khon Kaen, returning Mon, Sep 15, priced at $398 found 4 days ago
Asiana Airlines
Wed, Oct 15 - Wed, Nov 5
ICN
Seoul
KKC
Khon Kaen
$401 Roundtrip, found 4 days ago
$401
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Wed, Oct 15 from Seoul to Khon Kaen, returning Wed, Nov 5, priced at $401 found 4 days ago
Asiana Airlines
Mon, Sep 1 - Fri, Sep 19
ICN
Seoul
KKC
Khon Kaen
$403 Roundtrip, found 4 days ago
$403
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Mon, Sep 1 from Seoul to Khon Kaen, returning Fri, Sep 19, priced at $403 found 4 days ago
Asiana Airlines
Mon, Sep 8 - Sat, Sep 27
ICN
Seoul
KKC
Khon Kaen
$406 Roundtrip, found 4 days ago
$406
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Mon, Sep 8 from Seoul to Khon Kaen, returning Sat, Sep 27, priced at $406 found 4 days ago
Asiana Airlines
Sun, Aug 31 - Fri, Sep 19
ICN
Seoul
KKC
Khon Kaen
$408 Roundtrip, found 4 days ago
$408
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Sun, Aug 31 from Seoul to Khon Kaen, returning Fri, Sep 19, priced at $408 found 4 days ago
Asiana Airlines
Wed, Sep 10 - Sat, Sep 27
ICN
Seoul
KKC
Khon Kaen
$411 Roundtrip, found 4 days ago
$411
Roundtrip
found 4 days ago
Select Asiana Airlines flight, departing Wed, Sep 10 from Seoul to Khon Kaen, returning Sat, Sep 27, priced at $411 found 4 days ago
Thai Vietjet
Tue, Oct 14 - Tue, Oct 21
ICN
Seoul
KKC
Khon Kaen
$432 Roundtrip, found 4 days ago
$432
Roundtrip
found 4 days ago
Select Thai Vietjet flight, departing Tue, Oct 14 from Seoul to Khon Kaen, returning Tue, Oct 21, priced at $432 found 4 days ago
Thai Airways International
Thu, Oct 16 - Mon, Oct 20
ICN
Seoul
KKC
Khon Kaen
$694 Roundtrip, found 4 days ago
$694
Roundtrip
found 4 days ago
Select Thai Airways International flight, departing Thu, Oct 16 from Seoul to Khon Kaen, returning Mon, Oct 20, priced at $694 found 4 days ago

Alternative airports near Khon Kaen

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Khon Kaen KKC. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $394
KKC
Khon Kaen
CheapestClosest
Average driving time to city center8 min
Flights from $394
Flights from Seoul (ICN) to Khon Kaen (KKC)
Origin airport
Incheon Intl.
Destination airport
Khon Kaen
Roundtrip price
$383
Distance
2043 mi

Seoul to Khon Kaen Flights

The cheapest times to fly from Seoul to Khon Kaen

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

 

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

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

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 Khon Kaen in 2025. You can also book with separate airlines for your outbound and return journeys, from $408 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 Khon Kaen 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 Khon Kaen 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 Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC) cost?
Lock in a cheap one-way flight from $408 or cheap return flight from $383 from Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC) 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 Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC)?
Traveling in October can help you save, as it's the cheapest month for flights between ICN and KKC. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ICN to KKC flight.
How many flights per day from Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC)?
There are no daily nonstop flights available from Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from ICN to KKC?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, airline 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 Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC)?
Opt for a flight from Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC) that takes off before 3 PM to reduce the likelihood of delays. Departures later than this are on average 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 Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC) last-minute?
Last-minute fares from ICN to KKC are generally more expensive. To secure the best prices, start searching for flights as early as possible. That said, if your travel plans are flexible, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book an ICN to KKC flight and hotel package?
You'll typically save money by securing an ICN to KKC flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your ideal flights and accommodations, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Khon Kaen Airport (KKC)?
If you booked your ICN to KKC flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Explore a world of travel with Expedia

*Available to One Key members.