The cheapest times to fly from YOW to GRK are

  • March 19th to April 15th (except the week of March 26th)
  • August 20th to February 25th (except the weeks of October 8th, October 15th, December 17th, and December 24th)

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 YOW to GRK is mid January. Prices can be as high as $1065 for Sunday flights during mid June, or as low as $288 for Wednesday flights around mid January.


When to Fly to Killeen

Flying from Ottawa (YOW) to Killeen, TX (GRK) will usually cost between $386 to $908 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid January with an average ticket price of $400. Due to high demand the most expensive time to fly is mid June, with an average price of $823. Planning your trip to low-cost times can easily save you $423 on economy flights and even more on first-class flights. Generally, any price below $607 can be considered a good price for a round-trip YOW to GRK flight.

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

YOW to GRK Flight Prices

Compared to other flights, the YOW to GRK flight is cheaper than the average and costs about as much as the average flight leaving from Ottawa. The average price per mile (for a direct flight) is $0.24, which is 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 $267 (31%) 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 $485. Return trip prices are from the GRK to YOW flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from YOW to GRK can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 46 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 YOW to GRK while comparing.

Destination alternative #1: Dallas/Fort Worth International Airport (DFW) in Dallas/Fort Worth, TX

  • 135 miles (217 km) away from GRK
  • Usually 44.60% less expensive than GRK
  • 1-layover flights available

See YOW to DFW flights

Destination alternative #2: Austin – Bergstrom International Airport (AUS) in Austin, TX

  • 61 miles (98 km) away from GRK
  • Usually 39.82% less expensive than GRK
  • 1-layover flights available

See YOW to AUS flights

Destination alternative #3: San Antonio International Airport (SAT) in San Antonio, TX

  • 113 miles (182 km) away from GRK
  • Usually 39.78% less expensive than GRK
  • 1-layover flights available

See YOW to SAT flights

Destination alternative #4: Dallas Love Field Airport (DAL) in Dallas, TX

  • 136 miles (219 km) away from GRK
  • Usually 37.18% less expensive than GRK
  • 2-layover flights available

See YOW to DAL flights


Flight Hacking YOW to GRK

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from YOW to GRK — but Champion Traveler does!

Hack #1: New York, NY (YOW > LGA > GRK)

  • Price for both tickets: $545
  • Average savings: $62 (10.14%)

See YOW to CVG flights

Hack #2: Cincinnati, OH (YOW > CVG > GRK)

  • Price for both tickets: $577
  • Average savings: $30 (4.86%)

See YOW to LGA flights

Hack #3: Raleigh/Durham, NC (YOW > RDU > GRK)

  • Price for both tickets: $580
  • Average savings: $27 (4.37%)

See YOW to RDU flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Air Canada, American, Hainan, United, WestJet, and potentially more during busy seasons.

How far away is it from Robert Gray AAF Airport to Ottawa Macdonald Cartier International Airport?

The distance between the two airports is roughly 1546 miles or 2488 kilometers.

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

The real-world flight time for a nonstop YOW to GRK flight is about 3 hour 46 minutes.

How many flights go between Ottawa and Killeen, TX?

It depends on the day of the week and the date, but a typical day might have around 16 available flights from YOW to GRK.


Airport Location Info


Departing Airport

Origination code YOW
Origination airport name Ottawa Macdonald Cartier International Airport
City Ottawa
Country Canada
Latitude 45.3
Longitude -75.7

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

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.