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$437+ Cheap flights from Killeen to Seattle (GRK - SEA)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
GRK — SEA
Mar 18 — Mar 251
Wed 3/18
Wed 3/25
1 adult, Economy
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Cheap flight deals from Killeen to Seattle

Cheapest flights from Killeen to Seattle
Explore the most affordable flight options available from Killeen to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 16, 2026.

This Alaska Airlines deal was found by Cheapflights users on 2/12. 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.
Sat 10/312:51 pm
GRK
-
SEA
1 stop7h 46m
Alaska Airlines
Wed 11/410:50 am
SEA
-
GRK
1 stop8h 17m
Alaska Airlines
Deal found 2/12$437
This American Airlines deal was found by Cheapflights users on 2/16. 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 2/2711:56 am
GRK
-
SEA
1 stop9h 33m
American Airlines
Wed 3/411:57 pm
SEA
-
GRK
1 stop7h 48m
American Airlines
Deal found 2/16$536
This Alaska Airlines deal was found by Cheapflights users on 2/16. 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.
Thu 9/310:28 am
GRK
-
SEA
1 stop6h 52m
Alaska Airlines
Mon 9/71:15 am
SEA
-
GRK
1 stop6h 43m
Alaska Airlines
Deal found 2/16$557
This American Airlines deal was found by Cheapflights users on 2/12. 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 2/246:33 pm
GRK
-
SEA
1 stop6h 34m
American Airlines
Sat 2/2811:57 pm
SEA
-
GRK
1 stop7h 48m
American Airlines
Deal found 2/12$595
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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.
Thu 9/310:28 am
GRK
-
SEA
1 stop9h 09m
Alaska Airlines
Sun 9/61:15 am
SEA
-
GRK
1 stop6h 43m
Alaska Airlines
Deal found 2/12$602
This Alaska Airlines deal was found by Cheapflights users on 2/13. 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.
Tue 3/1712:01 pm
GRK
-
SEA
1 stop8h 00m
Alaska Airlines
Mon 3/2312:23 am
SEA
-
GRK
1 stop7h 22m
Alaska Airlines
Deal found 2/13$630
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 9/412:11 pm
GRK
-
SEA
1 stop7h 26m
Alaska Airlines
Sun 9/61:15 am
SEA
-
GRK
1 stop6h 43m
Alaska Airlines
Deal found 2/12$647
This Alaska Airlines deal was found by Cheapflights users on 2/16. 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.
Fri 9/412:11 pm
GRK
-
SEA
1 stop7h 26m
Alaska Airlines
Mon 9/71:15 am
SEA
-
GRK
1 stop6h 43m
Alaska Airlines
Deal found 2/16$676

Find flight deals from Killeen to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Killeen (GRK) to Seattle (SEA). 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 February 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$536
(American Airlines)

One-way from

$459
(Alaska Airlines)

Popular in

December

Cheapest in

February

Average price

$376
Provider with most accurate pricing for Killeen Fort Hood Regional-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Killeen Fort Hood Regional-Seattle/Tacoma Intl flights.
Search Deals
From Killeen Fort Hood Regional to Seattle/Tacoma Intl
Search Deals
One-way flight from Killeen Fort Hood Regional to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($169 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Killeen to Seattle 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 February 16, 2026.
Use the filters below to find and compare flights from Killeen to Seattle that are best for you.

Fly from

Killeen

Fly to

Seattle

Route

Depart

Return

Price

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Fri 2/27

11:56 am-7:29 pm

1 stop9h 33m

Seattle/Tacoma Intl

Wed 3/4

11:57 pm-9:45 am

1 stop7h 48m

$536

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Wed 7/8

3:06 pm-7:42 pm

1 stop6h 36m

Seattle/Tacoma Intl

Wed 7/29

6:00 am-2:36 pm

1 stop6h 36m

$630

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Tue 3/17

12:01 pm-6:01 pm

1 stop8h 00m

Seattle/Tacoma Intl

Mon 3/23

12:23 am-9:45 am

1 stop7h 22m

$630

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Mon 3/2

3:59 pm-10:01 pm

1 stop8h 02m

Seattle/Tacoma Intl

Tue 3/10

10:51 pm-9:45 am

1 stop8h 54m

$744

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Tue 3/3

12:01 pm-6:01 pm

1 stop8h 00m

Seattle/Tacoma Intl

Sat 3/7

8:30 am-6:03 pm

1 stop7h 33m

$823

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Mon 3/2

3:59 pm-10:01 pm

1 stop8h 02m

Seattle/Tacoma Intl

Fri 3/6

12:30 pm-10:03 pm

1 stop7h 33m

$917

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Mon 3/16

3:59 pm-9:32 pm

1 stop7h 33m

$459

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Thu 7/2

12:50 pm-7:42 pm

1 stop8h 52m

$459

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Sun 4/26

3:54 pm-9:26 pm

1 stop7h 32m

$459

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Sun 3/15

3:59 pm-9:32 pm

1 stop7h 33m

$655

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Compare providers for flights from Killeen to Seattle

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 Killeen to Seattle in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Killeen-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Killeen-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Killeen-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Killeen-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub 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 Killeen-Seattle 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 Killeen to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Killeen 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 Killeen to Seattle

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

Currently, November is the cheapest month in which you can book a flight from Killeen to Seattle (average of $138). Flying from Killeen to Seattle in July is currently the most expensive (average of $225). 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.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated February 16, 2026.
Read through reviews of airlines operating flights from Killeen to Seattle, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,294 reviews

Crew

8.0

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation
American Airlines
7.2
Good
11,294 reviews
American Airlines
7.2
Good
11,294 reviews

Crew

8.0

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Food

6.4

Overall

7.2

Reviews

1 / 20
6.0
Good

sheila,Mar 2025

DFW - MSP

We were delayed for 3 hours with no real reason or offer for compensation

Related info for your journey

Find useful and relevant information for your journey from Killeen to Seattle. 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 Killeen to Seattle?

    American Airlines and Alaska Airlines can get you from Killeen to Seattle in just under 6h 36m. Your travel time can differ by up to 2h 57m. The distance between Killeen and Seattle is about 1717 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Killeen to Seattle round-trip from $336. American Airlines is priced at 45% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Killeen to Seattle 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 Killeen to Seattle?

    Currently, November is the cheapest month in which you can book a flight from Killeen to Seattle (average of $138). Flying from Killeen to Seattle in July is currently the most expensive (average of $225). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Killeen to Seattle

Discover the top airline that operate flights from Killeen to Seattle. 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 February 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$336Average$633FlexibilityNo cancel feeOn-time71%

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