What airlines fly to Seattle?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Killeen according to our data. Alaska Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Killeen Fort Hood Regional to Seattle/Tacoma Intl?

Alaska Airlines and American Airlines are the most popular carriers operating from Killeen Fort Hood Regional to Seattle/Tacoma Intl

When did momondo last update prices for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport?

As of December 2025, there is 1 operator available to choose from for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$236 Cheap Flights from Killeen to Seattle in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Killeen to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:44 pm - 11:00 pm

GRK

SEA

6h 16m1 stop

11:32 pm - 8:58 am

SEA

GRK

7h 26m1 stop

$407American Airlines

Sat, May 16 - Tue, May 26

7:00 am - 12:39 pm

GRK

SEA

7h 39m1 stop

8:23 am - 6:53 pm

SEA

GRK

8h 30m1 stop

$497Alaska Airlines

Tue, Jan 13 - Sat, Jan 17

8:20 am - 3:34 pm

GRK

SEA

9h 14m1 stop

8:04 am - 10:43 pm

SEA

GRK

12h 39m2 stops

$502American Airlines

Tue, Jan 13 - Sat, Jan 17

10:36 am - 8:35 pm

GRK

SEA

11h 59m2 stops

8:04 am - 10:43 pm

SEA

GRK

12h 39m2 stops

$507American Airlines

Tue, Jan 13 - Sat, Jan 17

12:31 pm - 5:58 pm

GRK

SEA

7h 27m1 stop

8:23 am - 6:53 pm

SEA

GRK

8h 30m1 stop

$517Alaska Airlines

Tue, Jan 13 - Sat, Jan 17

10:21 am - 2:54 pm

GRK

SEA

6h 33m1 stop

12:59 am - 9:51 am

SEA

GRK

6h 52m1 stop

$562American Airlines

Fri, Dec 19 - Tue, Dec 30

12:31 pm - 5:58 pm

GRK

SEA

7h 27m1 stop

9:52 am - 6:53 pm

SEA

GRK

7h 01m1 stop

$647Alaska Airlines

Sun, Jan 11 - Thu, Jan 15

6:32 pm - 12:02 am

GRK

SEA

7h 30m1 stop

1:07 am - 9:51 am

SEA

GRK

6h 44m1 stop

$683Alaska Airlines

Tue, Dec 23 - Mon, Dec 29

10:22 am - 4:46 pm

GRK

SEA

8h 24m2 stops

11:32 pm - 8:58 am

SEA

GRK

7h 26m1 stop

$689American Airlines

Sat, May 16 - Tue, May 26

4:10 pm - 8:50 pm

GRK

SEA

6h 40m1 stop

1:07 am - 9:51 am

SEA

GRK

6h 44m1 stop

$709Alaska Airlines

Wed, Dec 17 - Sun, Dec 21

American Airlines flights from Killeen to Seattle

Our best American Airlines deals on Killeen to Seattle flight tickets

American Airlines

May 16

GRK6:44 pmKilleen Fort Hood Regional

6h 16m

1 stop

SEA11:00 pmSeattle/Tacoma Intl

May 26

SEA11:32 pmSeattle/Tacoma Intl

7h 26m

1 stop

GRK8:58 amKilleen Fort Hood Regional

$407

Find similar

American Airlines

Jan 13

GRK8:20 amKilleen Fort Hood Regional

9h 14m

1 stop

SEA3:34 pmSeattle/Tacoma Intl

Jan 17

SEA8:04 amSeattle/Tacoma Intl

12h 39m

2 stops

GRK10:43 pmKilleen Fort Hood Regional

$502

Find similar

American Airlines

Jan 13

GRK10:36 amKilleen Fort Hood Regional

11h 59m

2 stops

SEA8:35 pmSeattle/Tacoma Intl

Jan 17

SEA8:04 amSeattle/Tacoma Intl

12h 39m

2 stops

GRK10:43 pmKilleen Fort Hood Regional

$507

Find similar

Alaska Airlines flights from Killeen to Seattle

Our best Alaska Airlines deals on Killeen to Seattle flight tickets

Alaska Airlines

Jan 13

GRK7:00 amKilleen Fort Hood Regional

7h 39m

1 stop

SEA12:39 pmSeattle/Tacoma Intl

Jan 17

SEA8:23 amSeattle/Tacoma Intl

8h 30m

1 stop

GRK6:53 pmKilleen Fort Hood Regional

$497

Find similar

Alaska Airlines

Jan 13

GRK12:31 pmKilleen Fort Hood Regional

7h 27m

1 stop

SEA5:58 pmSeattle/Tacoma Intl

Jan 17

SEA8:23 amSeattle/Tacoma Intl

8h 30m

1 stop

GRK6:53 pmKilleen Fort Hood Regional

$517

Find similar

Alaska Airlines

Jan 11

GRK12:31 pmKilleen Fort Hood Regional

7h 27m

1 stop

SEA5:58 pmSeattle/Tacoma Intl

Jan 15

SEA9:52 amSeattle/Tacoma Intl

7h 01m

1 stop

GRK6:53 pmKilleen Fort Hood Regional

$647

Find similar

Fly from

Fly to

Route

Depart

Return

Price

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Sat 5/16

6:44 pm-11:00 pm

1 stop6h 16m

Seattle/Tacoma Intl

Tue 5/26

11:32 pm-8:58 am

1 stop7h 26m

$407

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Tue 1/13

7:00 am-12:39 pm

1 stop7h 39m

Seattle/Tacoma Intl

Sat 1/17

8:23 am-6:53 pm

1 stop8h 30m

$497

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Tue 1/13

8:20 am-3:34 pm

1 stop9h 14m

Seattle/Tacoma Intl

Sat 1/17

8:04 am-10:43 pm

2 stops12h 39m

$502

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Tue 1/13

10:36 am-8:35 pm

2 stops11h 59m

Seattle/Tacoma Intl

Sat 1/17

8:04 am-10:43 pm

2 stops12h 39m

$507

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Tue 1/13

12:31 pm-5:58 pm

1 stop7h 27m

Seattle/Tacoma Intl

Sat 1/17

8:23 am-6:53 pm

1 stop8h 30m

$517

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Fri 12/19

10:21 am-2:54 pm

1 stop6h 33m

Seattle/Tacoma Intl

Tue 12/30

12:59 am-9:51 am

1 stop6h 52m

$562

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Sun 1/11

12:31 pm-5:58 pm

1 stop7h 27m

Seattle/Tacoma Intl

Thu 1/15

9:52 am-6:53 pm

1 stop7h 01m

$647

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Tue 12/23

6:32 pm-12:02 am

1 stop7h 30m

Seattle/Tacoma Intl

Mon 12/29

1:07 am-9:51 am

1 stop6h 44m

$683

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Sat 5/16

10:22 am-4:46 pm

2 stops8h 24m

Seattle/Tacoma Intl

Tue 5/26

11:32 pm-8:58 am

1 stop7h 26m

$689

KilleenSeattle

GRK - SEA

GRKSEA

Killeen Fort Hood Regional

Wed 12/17

4:10 pm-8:50 pm

1 stop6h 40m

Seattle/Tacoma Intl

Sun 12/21

1:07 am-9:51 am

1 stop6h 44m

$709

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Killeen to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Killeen is on a Friday. momondo users have found tickets for Friday departures for as low as $276. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Killeen because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $625.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Killeen at noon is the least expensive time of day to depart. momondo users have found prices as low as $360 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $473. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Killeen to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Killeen to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Killeen to Seattle (GRK to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Killeen to Seattle

Fastest flight time	6h 16m
Direct flights	None

The fastest flight from Killeen to Seattle takes 6h 16m

There are no direct flights from Killeen to Seattle. There are no popular flight routes from Killeen to Seattle.

Search flight deals

How far is Killeen Fort Hood Regional to Seattle/Tacoma Intl by plane?
Killeen Fort Hood Regional and Seattle/Tacoma Intl are 1725.2 mi apart from one another. 6h 16m is a normal flight duration for this route.
When did momondo last update prices for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport?
As of December 2025, there is 1 operator available to choose from for flights from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Killeen Fort Hood Regional Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Killeen to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Killeen to Seattle is American Airlines (100% of total bookings).

Best airlines flying from Killeen to Seattle

Compare and see reviews for airlines that fly from Killeen to Seattle with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $316	Free Cancellation	Rating 7.2 11,047 reviews		Search American Airlines flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Tukwila

Redmond

Cle Elum

Federal Way

Lakewood

Fife

Centralia

Westport

Kirkland

Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Killeen to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Killeen to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Killeen to Seattle with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Killeen to Seattle flights to just show those with flexible booking policies.

How can momondo help me find flights from Killeen to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Killeen. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Killeen to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Killeen to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.