The cheapest times to fly from GRK to SEA are
- January 8th to March 4th
- April 23rd to May 6th
- August 6th to November 18th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from GRK to SEA is late January. Prices can be as high as $764 for Sunday flights during late June, or as low as $219 for Wednesday flights around late January.
When to Fly to Seattle
Flying from Killeen, TX (GRK) to Seattle, WA (SEA) will usually cost between $224 to $540 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $238. Due to high demand the most expensive time to fly is late June, with an average price of $468. Planning your trip to low-cost times can easily save you $230 on economy flights and even more on first-class flights. Generally, any price below $338 can be considered a good price for a round-trip GRK to SEA flight.
See below for a graph of average weekly prices for the GRK to SEA route. All prices are for round-trip tickets in USD.
Compared to other flights, the GRK to SEA flight is much cheaper than the average and costs much less than the average flight leaving from Killeen. The average price per mile (for a direct flight) is $0.12, which is far below average.
Flight Prices by Day of the Week
Wednesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $148 (34%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $284. Return trip prices are from the SEA to GRK flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from GRK to SEA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 4 hour 4 minutes may not be realistic.
Alternative Nearby Airports
Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from GRK to SEA while comparing.
- 129 miles (208 km) away from SEA
- Usually 1.04% less expensive than SEA
- 1-layover flights available
Flight Questions Answered
Still have questions about flying from GRK to SEA? We’ve got answers.
Which airlines fly this route?
You can find 4 major airlines flying this route most often: Alaska, American, Delta, United, and potentially more during busy seasons.
How far away is it from Seattle/Tacoma International Airport to Robert Gray AAF Airport?
The distance between the two airports is roughly 1718 miles or 2765 kilometers.
How long does it take to fly from GRK to SEA?
The real-world flight time for a nonstop GRK to SEA flight is about 4 hour 4 minutes.
How many flights go between Killeen, TX and Seattle, WA?
It depends on the day of the week and the date, but a typical day might have around 58 available flights from GRK to SEA.
Airport Location Info
|Origination airport name||Robert Gray AAF Airport|
|Country||the United States|
|Destination airport name||Seattle/Tacoma International Airport|
|Country||the United States|
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.