HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Killeen

$367+ Cheap flights from Seattle to Killeen (SEA - GRK)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — GRK
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Killeen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$446
(American Airlines)

One-way from

$367
(American Airlines)

Popular in

January

Cheapest in

March

Average price

$512
Provider with most accurate pricing for Seattle/Tacoma Intl-Killeen Fort Hood Regional flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Killeen Fort Hood Regional flights.
Search Deals
From Seattle/Tacoma Intl to Killeen Fort Hood Regional
Search Deals
One-way flight from Seattle/Tacoma Intl to Killeen Fort Hood Regional
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 28, 2025.

This American Airlines deal was found by Cheapflights users on 10/26. 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.
Sun 12/1412:31 amSEA - GRK
1 stop7h 32mAmerican Airlines
Sun 12/216:32 pmGRK - SEA
1 stop8h 25mAmerican Airlines
Deal found 10/26$446
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/1312:59 amSEA - GRK
1 stop7h 04mAmerican Airlines
Thu 11/205:05 amGRK - SEA
1 stop6h 40mAmerican Airlines
Deal found 10/28$521
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Fri 10/3110:32 amSEA - GRK
1 stop7h 49mAmerican Airlines
Sun 11/25:05 amGRK - SEA
1 stop6h 40mAmerican Airlines
Deal found 10/27$531
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/412:41 amSEA - GRK
1 stop7h 22mAmerican Airlines
Mon 11/106:05 amGRK - SEA
1 stop6h 39mAmerican Airlines
Deal found 10/27$564
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 12/2512:59 amSEA - GRK
1 stop6h 52mAmerican Airlines
Fri 1/910:36 amGRK - SEA
1 stop6h 58mAmerican Airlines
Deal found 10/26$581
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 12/2512:59 amSEA - GRK
1 stop6h 52mAmerican Airlines
Sat 1/1010:36 amGRK - SEA
2 stops10h 46mAmerican Airlines
Deal found 10/26$586
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Sun 12/2112:59 amSEA - GRK
1 stop8h 28mAmerican Airlines
Sun 1/46:32 pmGRK - SEA
1 stop8h 31mAmerican Airlines
Deal found 10/25$617
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 12/2612:59 amSEA - GRK
1 stop6h 52mAmerican Airlines
Sat 1/1010:36 amGRK - SEA
1 stop8h 59mAmerican Airlines
Deal found 10/26$626
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 12/2612:59 amSEA - GRK
1 stop6h 52mAmerican Airlines
Fri 1/910:36 amGRK - SEA
2 stops13h 44mAmerican Airlines
Deal found 10/26$631
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Sun 12/2811:59 pmSEA - GRK
1 stop7h 52mAmerican Airlines
Tue 1/612:30 pmGRK - SEA
1 stop7h 05mAmerican Airlines
Deal found 10/26$647

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 October 28, 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

Mon 12/15

10:34 am-9:05 pm

1 stop8h 31m

Killeen Fort Hood Regional

Sun 12/21

6:32 pm-12:57 am

1 stop8h 25m

$446

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Thu 11/13

12:59 am-10:03 am

1 stop7h 04m

Killeen Fort Hood Regional

Thu 11/20

5:05 am-9:45 am

1 stop6h 40m

$521

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Thu 12/25

12:59 am-9:51 am

1 stop6h 52m

Killeen Fort Hood Regional

Thu 1/8

5:21 am-11:05 am

1 stop7h 44m

$581

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Thu 12/25

12:59 am-9:51 am

1 stop6h 52m

Killeen Fort Hood Regional

Fri 1/9

10:36 am-10:20 pm

2 stops13h 44m

$586

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Mon 12/22

7:20 am-3:29 pm

1 stop6h 09m

Killeen Fort Hood Regional

Sun 1/4

6:32 pm-1:03 am

1 stop8h 31m

$617

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Fri 12/26

12:59 am-9:51 am

1 stop6h 52m

Killeen Fort Hood Regional

Wed 1/7

10:36 am-5:35 pm

1 stop8h 59m

$626

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Fri 12/26

12:59 am-9:51 am

1 stop6h 52m

Killeen Fort Hood Regional

Sat 1/10

10:36 am-5:35 pm

1 stop8h 59m

$626

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Fri 1/2

12:59 am-9:51 am

1 stop6h 52m

$367

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Mon 12/22

12:59 am-9:51 am

1 stop6h 52m

$367

SeattleKilleen

SEA - GRK

SEAGRK

Seattle/Tacoma Intl

Sat 12/20

11:59 pm-9:51 am

1 stop7h 52m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 13 results
1
2

Compare providers for flights from Seattle to Killeen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Killeen in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Killeen flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Killeen flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Killeen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Killeen flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Killeen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, August is the cheapest month in which you can book a flight from Seattle to Killeen (average of $123). Flying from Seattle to Killeen in July is currently the most expensive (average of $257). 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 October 28, 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 25% 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 October 28, 2025.
Peruse reviews from past customers who have flown with 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.
American Airlines
7.2
Good
11,032 reviews

Boarding

7.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.
American Airlines
7.2
Good
11,032 reviews
American Airlines
7.2
Good
11,032 reviews

Boarding

7.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Food

6.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

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.

  • How long is the flight from Seattle to Killeen?

    Departing from Seattle to Killeen will take you 8h 31m. Seattle and Killeen are separated by a distance of 1717 mi.

  • What is the cheapest airline to fly from Seattle to Killeen round-trip?

    According to our current data, American Airlines ($326), offers the cheapest pricing from Seattle to Killeen. This flight start at 34% 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, August is the cheapest month in which you can book a flight from Seattle to Killeen (average of $123). Flying from Seattle to Killeen in July is currently the most expensive (average of $257). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Killeen

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Dallas/Fort Worth flights
Seattle to Hobby flights
Seattle to George Bush Intcntl flights
Seattle to Austin flights
Portland to Dallas/Fort Worth flights
Portland to Hobby flights
Portland to George Bush Intcntl flights
Seattle to Love Field flights
Seattle to San Antonio flights
Portland to Austin flights
Spokane to Dallas/Fort Worth flights
Portland to Love Field flights
Seattle to El Paso flights
Spokane to Hobby flights
Portland to San Antonio flights
Pasco to Hobby flights
Seattle to Corpus Christi flights
Spokane to George Bush Intcntl flights
Pasco to George Bush Intcntl flights
Spokane to Love Field flights
Portland to El Paso flights
Portland to McAllen flights
Seattle to Amarillo flights
Seattle to McAllen flights
Pasco to Dallas/Fort Worth flights
Spokane to Austin flights
Portland to Corpus Christi flights
Bellingham to Dallas/Fort Worth flights
Spokane to San Antonio flights
Seattle to Brownsville flights
Bellingham to George Bush Intcntl flights
Portland to Brownsville flights
Seattle to Lubbock flights
Pasco to San Antonio flights
Pullman to Dallas/Fort Worth flights
Seattle to Midland flights
Portland to Harlingen flights
Bellingham to Hobby flights
Portland to Amarillo flights
Portland to Lubbock flights
Seattle to Waco flights
Seattle to Harlingen flights
Portland to Midland flights
Pullman to San Antonio flights
Pullman to Hobby flights
Walla Walla to Dallas/Fort Worth flights
Seattle to Longview flights
Walla Walla to Hobby flights
Spokane to Lubbock flights

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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$326Average$479FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.