grk-to-iah

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The cheapest times to fly from GRK to IAH are

  • May 28th to July 22nd
  • October 8th to November 18th
  • December 3rd to February 25th

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 IAH is early December. Prices can be as high as $491 for Sunday flights during early to mid March, or as low as $264 for Tuesday flights around early December.

 

When to Fly to Houston

Flying from Killeen, TX (GRK) to Houston, TX (IAH) will usually cost between $264 to $347 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early December with an average ticket price of $274. Due to high demand the most expensive time to fly is early to mid March, with an average price of $339. Planning your trip to low-cost times can easily save you $65 on economy flights and even more on first-class flights. Generally, any price below $299 can be considered a good price for a round-trip GRK to IAH flight.

See below for a graph of average weekly prices for the GRK to IAH route. All prices are for round-trip tickets in USD.

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GRK to IAH Flight Prices

Compared to other flights, the GRK to IAH 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 $1.12, which is above average.

 

Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to IAH, and Wednesday the cheapest day to fly back into GRK. 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 $23 (7%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $289. Return trip prices are from the IAH to GRK flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

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Departure Day Prices

Return Trip Prices by Day

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Return Day Prices

 

Nonstop Flights and Layovers

Travelers looking to fly from GRK to IAH can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 17 minutes may be realistic.

 

Flight Questions Answered

Still have questions about flying from GRK to IAH? We’ve got answers.

Which airlines fly this route?

You can find 3 major airlines flying this route most often: Alaska, American, United, and potentially more during busy seasons.

How far away is it from George Bush Intercontinental/Houston Airport to Robert Gray AAF Airport?

The distance between the two airports is roughly 166 miles or 267 kilometers.

How long does it take to fly from GRK to IAH?

The real-world flight time for a nonstop GRK to IAH flight is about 1 hour 17 minutes.

How many flights go between Killeen, TX and Houston, TX?

It depends on the day of the week and the date, but a typical day might have around 33 available flights from GRK to IAH.

 

Airport Location Info

 

Departing Airport

Origination codeGRK
Origination airport nameRobert Gray AAF Airport
CityKilleen, TX
Countrythe United States
Latitude31.1
Longitude-97.8

Return Airport

Destination codeIAH
Destination airport nameGeorge Bush Intercontinental/Houston Airport
CityHouston, TX
Countrythe United States
Latitude30
Longitude-95.3

 

Late and Early Flight Data

Flights from GRK to IAH tend to depart late far less frequently than the average flight. According to our recently updated data, 22% of flights departed 5 or more minutes late, and 62% of flights left 5 or more minutes early. On average you can expect to leave IAH heading for GRK about 20 minutes late. This does significantly impact arrival time, as the average landing time in Houston, TX is about 18 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • ExpressJet: 20 minutes late
  • Some airlines not reporting

 

Other Resources

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.