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Killeen

$427+ Cheap flights from Seattle to Killeen (SEA - GRK)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GRK
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Seattle to Killeen

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Killeen (GRK). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$427
(American Airlines)

Popular in

January

Cheapest in

September

Average price

$501
From Seattle/Tacoma Intl to Killeen Fort Hood Regional
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Highest demand for flights based on searches. 23% potential increase in price ($145 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to Killeen

Cheapest flights from Seattle to Killeen
Explore the most affordable flight options available from Seattle to Killeen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/261:55 pmSEA - GRK
1 stop6h 15mAmerican Airlines
Tue 9/212:11 pmGRK - SEA
1 stop6h 46mAmerican Airlines
Deal found 7/27$427
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2512:58 amSEA - GRK
1 stop7h 03mAlaska Airlines
Tue 9/212:11 pmGRK - SEA
1 stop7h 20mAlaska Airlines
Deal found 7/27$517

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Killeen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Seattle to Killeen that are best for you.

Fly from

Seattle

Fly to

Killeen

Route

Depart

Return

Price

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Tue 8/26

1:55 pm-10:10 pm

1 stop6h 15m

Killeen Fort Hood Regional

Tue 9/2

12:11 pm-4:57 pm

1 stop6h 46m

$427

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Mon 8/25

12:58 am-10:01 am

1 stop7h 03m

Killeen Fort Hood Regional

Tue 9/2

12:11 pm-5:31 pm

1 stop7h 20m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Seattle to Killeen

Have a flexible travel schedule? Discover the best time to fly to Killeen from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Killeen

What is the cheapest month to book a flight from Seattle to Killeen?

Currently, January is the cheapest month in which you can book a flight from Seattle to Killeen (average of $316). Flying from Seattle to Killeen in December is currently the most expensive (average of $468). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to GRK?

Find hourly flight availability from Seattle to Killeen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

One of the essential ways to save on airfare from Seattle to Killeen is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 19% on airfare.

Reviews of airlines servicing Killeen

Get insights into the airlines that provide service to Killeen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Killeen. Reviews last updated July 29, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines and American Airlines from Seattle to Killeen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Killeen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Killeen round-trip?

    According to our current data, American Airlines ($427), and Alaska Airlines ($517) offers the cheapest pricing from Seattle to Killeen. These flights start at 8% lower than the current average price 3 months from now.

  • Can I find deals for flights from Seattle to Killeen that include hotel bookings?

    Yes. In addition to deals on Seattle to Killeen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Killeen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Killeen.

  • Can I find deals for business class flights from Seattle to Killeen?

    Yes. Cheapflights offers flight deals from Seattle to Killeen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Killeen?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Killeen (average of $316). Flying from Seattle to Killeen in December is currently the most expensive (average of $468). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Killeen?

Book flights to Killeen if you plan to visit one of these locations
Copperas Cove
Temple

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Top airline flying from Seattle to Killeen

Discover the top airline that operate flights from Seattle to Killeen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$316Average$462FlexibilityNo cancel feeOn-time71%

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