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Find flights to Killeen fromFly from Ontario on American Airlines, United Airlines and more. Search for Killeen flights on KAYAK now to find the best deal. The total flight duration time from Ontario (ONT) to Killeen (GRK) is typically 6 hours 15 minutes.

Flying To.

This is the average non-stop flight time based upon historical flights for this route. During this period travelers can expect to fly about 1, miles, or 2, kilometers.

Which airlines provide the cheapest flights from Killeen to Ontario? In the past 3 days, the cheapest one-way tickets to Ontario from Killeen were found on American Airlines () and United Airlines (), and the lowest round-trip tickets were found on American Airlines () and United Airlines ().

️ Use the interactive calendar available on Expedia to see the cheapest United (Killeen GRK - Mobile MOB) ticket prices during the weeks surrounding your travel dates. Compare flight prices for similar timeframes and adjust departure and return dates to get the cheapest fare possible.

The lowest-priced days are highlighted in green. Book Cheap Flights from Ontario to Killeen: Search and compare airfares on Tripadvisor to find the best flights for your trip to Killeen. Choose the best airline for you by reading reviews and viewing hundreds of ticket rates for flights going to and from your destination.

Find the cheapest flight ticket deals from Ontario ONT to Killeen GRK. Compare all the major airlines & Book in just a few easy steps. Flights from Ontario (ONT) to Killeen (GRK). Compare & reserve one-way or return flights from Killeen to Ontario fromonly to get the best flight deals and promotions for your GRK to ONT trip! Each month there are several airlines that offer direct flights from Killeen (GRK) to Ontario (ONT).

Among the top airlines that consistently provide GRK to ONT flights include: American Airlines - (AA) with 90 direct flights between Killeen and Ontario monthly; United Airlines - (UA) with 30 direct flights between GRK and ONT monthly.