$333 Cheap Flights from Seattle (SEA) to Killeen (GRK)

View $333 flight on Wed, Jul 30, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Killeen, TX (GRK-Killeen-Fort Hood Regional)

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Cheap Flights from Seattle to Killeen (SEA-GRK)

Prices were available within the past 7 days and start at $333 for one-way flights and $422 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Nov 18 - Sat, Nov 22
SEA
Seattle
GRK
Killeen
$422 Roundtrip, found 5 days ago
$422
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Nov 18 from Seattle to Killeen, returning Sat, Nov 22, priced at $422 found 5 days ago
American Airlines
Tue, Jul 29 - Tue, Aug 12
SEA
Seattle
GRK
Killeen
$427 Roundtrip, found 2 days ago
$427
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Jul 29 from Seattle to Killeen, returning Tue, Aug 12, priced at $427 found 2 days ago
American Airlines
Tue, Jul 29 - Wed, Aug 6
SEA
Seattle
GRK
Killeen
$432 Roundtrip, found 3 days ago
$432
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Jul 29 from Seattle to Killeen, returning Wed, Aug 6, priced at $432 found 3 days ago
American Airlines
Thu, Aug 7 - Tue, Aug 12
SEA
Seattle
GRK
Killeen
$437 Roundtrip, found 2 days ago
$437
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Aug 7 from Seattle to Killeen, returning Tue, Aug 12, priced at $437 found 2 days ago
American Airlines
Tue, Nov 18 - Thu, Nov 27
SEA
Seattle
GRK
Killeen
$442 Roundtrip, found 5 days ago
$442
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Nov 18 from Seattle to Killeen, returning Thu, Nov 27, priced at $442 found 5 days ago
American Airlines
Thu, Aug 7 - Sat, Aug 16
SEA
Seattle
GRK
Killeen
$442 Roundtrip, found 2 days ago
$442
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Aug 7 from Seattle to Killeen, returning Sat, Aug 16, priced at $442 found 2 days ago
American Airlines
Thu, Aug 7 - Mon, Aug 11
SEA
Seattle
GRK
Killeen
$447 Roundtrip, found 2 days ago
$447
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Aug 7 from Seattle to Killeen, returning Mon, Aug 11, priced at $447 found 2 days ago
American Airlines
Mon, Nov 17 - Sat, Nov 22
SEA
Seattle
GRK
Killeen
$452 Roundtrip, found 5 days ago
$452
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Nov 17 from Seattle to Killeen, returning Sat, Nov 22, priced at $452 found 5 days ago
Alaska Airlines
Mon, Nov 17 - Thu, Nov 27
SEA
Seattle
GRK
Killeen
$472 Roundtrip, found 5 days ago
$472
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Nov 17 from Seattle to Killeen, returning Thu, Nov 27, priced at $472 found 5 days ago
American Airlines
Wed, Aug 13 - Wed, Sep 3
SEA
Seattle
GRK
Killeen
$477 Roundtrip, found 4 days ago
$477
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Aug 13 from Seattle to Killeen, returning Wed, Sep 3, priced at $477 found 4 days ago

Find the cheapest month to fly from Seattle (SEA) to Killeen (GRK)

May is typically the cheapest month to fly

From $418 - $1,340 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Killeen (GRK)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Killeen-Fort Hood Regional
Airlines serving
American Airlines
Roundtrip price
$421
Distance
1717 mi

Seattle to Killeen Flights

The cheapest times to fly from Seattle 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 Seattle to Killeen are during the month of November. You can find some of the cheapest flights from Seattle to Killeen with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Killeen

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle to Killeen in 2025. You can also book with separate airlines for your outbound and return journeys, from $333 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 Seattle 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 Seattle 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 Seattle - Tacoma Intl. Airport (SEA) to Killeen-Fort Hood Regional Airport (GRK) cost?
Discover the latest flight deals from SEA to GRK 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 SEA to GRK?
The cheapest flights from SEA to GRK 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 SEA to GRK?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to GRK. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Killeen-Fort Hood Regional Airport (GRK)?
You'll have to book a flight with a layover if you're traveling from Seattle - Tacoma Intl. Airport (SEA) to Killeen-Fort Hood Regional Airport (GRK). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SEA to GRK?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, 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 Seattle - Tacoma Intl. Airport (SEA) to Killeen-Fort Hood Regional Airport (GRK)?
To land at Killeen-Fort Hood Regional Airport (GRK) on schedule, opt for a flight that leaves from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Seattle - Tacoma Intl. Airport (SEA) to Killeen-Fort Hood Regional Airport (GRK) last-minute?
Waiting until just before your departure to book your flight from SEA to GRK often results in higher prices. While you may come across some last-minute discounts, there's no guarantee. Keep your travel schedule open for a better chance of scoring a bargain.
Is it cheaper to book a SEA to GRK flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to GRK flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place takes the hassle out of planning your trip. Just secure your flights and select from our wide range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Killeen-Fort Hood Regional Airport (GRK)?
If you reserved your SEA to GRK flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket 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 for more information.

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*Available to One Key members.