$453 Cheap Flights from Seoul (ICN) to Killeen (GRK)

View $453 flight on Thu, Oct 16, 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Killeen, TX (GRK-Killeen-Fort Hood Regional)

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Cheap Flights from Seoul to Killeen (ICN-GRK)

Prices were available within the past 7 days and start at $453 for one-way flights and $642 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Feb 2 - Wed, Feb 18
ICN
Seoul
GRK
Killeen
$642 Roundtrip, found 9 hours ago
$642
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Mon, Feb 2 from Seoul to Killeen, returning Wed, Feb 18, priced at $642 found 9 hours ago
American Airlines
Thu, Sep 11 - Fri, Sep 26
ICN
Seoul
GRK
Killeen
$643 Roundtrip, found 4 days ago
$643
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Sep 11 from Seoul to Killeen, returning Fri, Sep 26, priced at $643 found 4 days ago
American Airlines
Tue, Sep 16 - Wed, Oct 1
ICN
Seoul
GRK
Killeen
$649 Roundtrip, found 4 days ago
$649
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 16 from Seoul to Killeen, returning Wed, Oct 1, priced at $649 found 4 days ago
American Airlines
Mon, Feb 2 - Mon, Feb 16
ICN
Seoul
GRK
Killeen
$653 Roundtrip, found 9 hours ago
$653
Roundtrip
found 9 hours ago
Select American Airlines flight, departing Mon, Feb 2 from Seoul to Killeen, returning Mon, Feb 16, priced at $653 found 9 hours ago
American Airlines
Thu, Sep 11 - Sun, Sep 28
ICN
Seoul
GRK
Killeen
$654 Roundtrip, found 4 days ago
$654
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Sep 11 from Seoul to Killeen, returning Sun, Sep 28, priced at $654 found 4 days ago
American Airlines
Fri, Jan 16 - Tue, Feb 3
ICN
Seoul
GRK
Killeen
$678 Roundtrip, found 8 hours ago
$678
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Fri, Jan 16 from Seoul to Killeen, returning Tue, Feb 3, priced at $678 found 8 hours ago
American Airlines
Wed, Feb 4 - Sun, Feb 15
ICN
Seoul
GRK
Killeen
$689 Roundtrip, found 8 hours ago
$689
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Wed, Feb 4 from Seoul to Killeen, returning Sun, Feb 15, priced at $689 found 8 hours ago
American Airlines
Sat, Sep 13 - Mon, Sep 29
ICN
Seoul
GRK
Killeen
$697 Roundtrip, found 4 days ago
$697
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 13 from Seoul to Killeen, returning Mon, Sep 29, priced at $697 found 4 days ago
Asiana Airlines
Thu, Jan 22 - Mon, Feb 9
ICN
Seoul
GRK
Killeen
$817 Roundtrip, found 8 hours ago
$817
Roundtrip
found 8 hours ago
Select Asiana Airlines flight, departing Thu, Jan 22 from Seoul to Killeen, returning Mon, Feb 9, priced at $817 found 8 hours ago
Qatar Airways
Tue, Sep 16 - Thu, Oct 2
ICN
Seoul
GRK
Killeen
$1,995 Roundtrip, found 4 days ago
$1,995
Roundtrip
found 4 days ago
Select Qatar Airways flight, departing Tue, Sep 16 from Seoul to Killeen, returning Thu, Oct 2, priced at $1,995 found 4 days ago
Flights from Seoul (ICN) to Killeen (GRK)
Origin airport
Incheon Intl.
Destination airport
Killeen-Fort Hood Regional
Airlines serving
American Airlines
Roundtrip price
$642
Distance
6906 mi

Seoul to Killeen Flights

The cheapest times to fly from Seoul to Killeen

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

 

The best time to book a flight from Seoul to Killeen

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

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 Killeen in 2025. You can also book with separate airlines for your outbound and return journeys, from $453 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 Killeen 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 Killeen 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 Killeen-Fort Hood Regional Airport (GRK) cost?
Get a cheap one-way flight from $453 or cheap return flight from $642 from Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK)?
The cheapest month to fly from ICN to GRK is February, when demand is low. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK)?
To find the cheapest airline flying from ICN to GRK, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK)?
You'll need to hop on a flight with a layover when traveling from Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from ICN to GRK?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, 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 Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK)?
To reach Killeen-Fort Hood Regional Airport (GRK) without delays, pick a flight that leaves from Incheon Intl. Airport (ICN) 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 Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK) last-minute?
Holding off until just before your departure to book a flight from ICN to GRK generally means paying more. While you might find some last-minute deals, there's no guarantee. Be flexible with your travel plans to maximize your chances of snagging a bargain.
Is it cheaper to book an ICN to GRK flight and hotel package?
Opting for an ICN to GRK flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Incheon Intl. Airport (ICN) to Killeen-Fort Hood Regional Airport (GRK)?
If you booked your ICN to GRK flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket 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, visit our Customer Service portal for further details.

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*Available to One Key members.