The cheapest times to fly from TRI to GRK are
- January 1st to March 11th (except the week of February 26th)
- June 25th to August 5th (except the week of July 2nd)
- October 15th 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 TRI to GRK is late January. Prices can be as high as $711 for Sunday flights during early to mid October, or as low as $298 for Wednesday flights around late January.
When to Fly to Killeen
Flying from Bristol/Johnson City/Kingsport, TN (TRI) to Killeen, TX (GRK) will usually cost between $304 to $614 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 $347. Due to high demand the most expensive time to fly is early to mid October, with an average price of $536. Planning your trip to low-cost times can easily save you $189 on economy flights and even more on first-class flights. Generally, any price below $439 can be considered a good price for a round-trip TRI to GRK flight.
See below for a graph of average weekly prices for the TRI to GRK route. All prices are for round-trip tickets in USD.
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Compared to other flights, the TRI to GRK flight is much cheaper than the average and costs less than the average flight leaving from Bristol. The average price per mile (for a direct flight) is $0.28, which is below average.
Flight Prices by Day of the Week
Wednesday is usually the cheapest day to fly to GRK, and Tuesday the cheapest day to fly back into TRI. 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 $150 (28%) 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 $382. Return trip prices are from the GRK to TRI flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
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Return Trip Prices by Day
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Nonstop Flights and Layovers
Travelers looking to fly from TRI to GRK can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 2 hour 43 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 TRI to GRK while comparing.
- 135 miles (217 km) away from GRK
- Usually 29.16% less expensive than GRK
- Nonstop flights available
- 61 miles (98 km) away from GRK
- Usually 27.90% less expensive than GRK
- 1-layover flights available
- 113 miles (182 km) away from GRK
- Usually 25.63% less expensive than GRK
- 1-layover flights available
- 136 miles (219 km) away from GRK
- Usually 21.18% less expensive than GRK
- 1-layover flights available
Flight Questions Answered
Still have questions about flying from TRI to GRK? We’ve got answers.
Which airlines fly this route?
You can find 3 major airlines flying this route most often: American, Delta, United, and potentially more during busy seasons.
How far away is it from Robert Gray AAF Airport to Tri Cities Airport?
The distance between the two airports is roughly 960 miles or 1545 kilometers.
How long does it take to fly from TRI to GRK?
The real-world flight time for a nonstop TRI to GRK flight is about 2 hour 43 minutes.
How many flights go between Bristol/Johnson City/Kingsport, TN and Killeen, TX?
It depends on the day of the week and the date, but a typical day might have around 18 available flights from TRI to GRK.
Airport Location Info
Departing Airport
Origination code | TRI |
Origination airport name | Tri Cities Airport |
City | Bristol/Johnson City/Kingsport, TN |
Country | the United States |
Latitude | 36.5 |
Longitude | -82.4 |
Return Airport
Destination code | GRK |
Destination airport name | Robert Gray AAF Airport |
City | Killeen, TX |
Country | the United States |
Latitude | 31.1 |
Longitude | -97.8 |
Other Resources
Flights to GRK
Flights from GRK
Popular Flights
Flights to TRI
Flights from TRI
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.