The cheapest times to fly from GRK to BRU are

  • April 23rd to May 13th (except the week of April 30th)
  • October 8th to April 1st (except the week of December 17th)

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 BRU is early December. Prices can be as high as $2006 for Friday flights during mid June, or as low as $1013 for Tuesday flights around early December.


When to Fly to Brussels

Flying from Killeen, TX (GRK) to Brussels (BRU) will usually cost between $1015 to $1603 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 $1058. Due to high demand the most expensive time to fly is mid June, with an average price of $1576. Planning your trip to low-cost times can easily save you $518 on economy flights and even more on first-class flights. Generally, any price below $1292 can be considered a good price for a round-trip GRK to BRU flight.

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

GRK to BRU Flight Prices

Compared to other flights, the GRK to BRU flight is slightly more expensive than the average and costs slightly more than the average flight leaving from Killeen. The average price per mile (for a direct flight) is $0.16, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays 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 $143 (10%) 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 $1216. Return trip prices are from the BRU to GRK 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 GRK to BRU can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 10 hour 7 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 BRU while comparing.

Destination alternative #1: Duesseldorf Airport (DUS) in Dusseldorf

  • 102 miles (164 km) away from BRU
  • Usually 16.92% less expensive than BRU
  • 2-layover flights available

See GRK to DUS flights


Flight Hacking GRK to BRU

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 GRK to BRU — but Champion Traveler does!

Hack #1: Boston, MA (GRK > BOS > BRU)

  • Price for both tickets: $791
  • Average savings: $501 (38.75%)

See GRK to BOS flights

Hack #2: Miami, FL (GRK > MIA > BRU)

  • Price for both tickets: $841
  • Average savings: $451 (34.92%)

See GRK to MIA flights

Hack #3: Panama City, FL (GRK > ECP > BRU)

  • Price for both tickets: $881
  • Average savings: $411 (31.82%)

See GRK to ECP flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 8 major airlines flying this route most often: Air Canada, American, British Airways, Brussels Airlines, Delta, KLM, Lufthansa, United, and potentially more during busy seasons.

How far away is it from Brussels National Airport to Robert Gray AAF Airport?

The distance between the two airports is roughly 5073 miles or 8164 kilometers.

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

The real-world flight time for a nonstop GRK to BRU flight is about 10 hour 7 minutes.

How many flights go between Killeen, TX and Brussels?

It depends on the day of the week and the date, but a typical day might have around 13 available flights from GRK to BRU.


Airport Location Info


Departing Airport

Origination code GRK
Origination airport name Robert Gray AAF Airport
City Killeen, TX
Country the United States
Latitude 31.1
Longitude -97.8

Return Airport

Destination code BRU
Destination airport name Brussels National Airport
City Brussels
Country Belgium
Latitude 50.9
Longitude 4.5


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.