ONT - GRK

$334 Find Cheap Flights from Ontario to Killeen - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$396
Typical prices: $361-$622
American Airlines
Mon 11/5Wed 11/14
ONT - GRK • 1 stop
Cheapest one-way
$334
Typical prices: $185-$380
American Airlines
Wed 10/10
ONT - GRK • 1 stop
When to travel
September
Cheapest • 16% price drop
September
Most popular
Good to know
+1
Good to know
+1
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Flight Deals

Cheap Flights from Ontario to Killeen (ONT-GRK)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Killeen

Thu, Nov 5 - Sat, Nov 14
American Airlines Logo
2:22 pm - 11:44 pmONT  Ontario-GRK Killeen Fort Hood Regional
7h 22m1 stop Dallas/Fort Worth
American Airlines Logo
7:00 am - 11:52 amGRK  Killeen Fort Hood Regional-ONT Ontario
6h 52m1 stop Dallas/Fort Worth
$396American Airlines
Mon, Dec 21 - Thu, Jan 7
American Airlines Logo
11:59 pm - 9:37 amONT  Ontario-GRK Killeen Fort Hood Regional
7h 38m1 stop Dallas/Fort Worth
American Airlines Logo
10:11 am - 1:25 pmGRK  Killeen Fort Hood Regional-ONT Ontario
5h 14m1 stop Dallas/Fort Worth
$397American Airlines
Fri, Oct 30 - Sun, Nov 1
American Airlines Logo
11:59 pm - 9:23 amONT  Ontario-GRK Killeen Fort Hood Regional
7h 24m1 stop Dallas/Fort Worth
American Airlines Logo
3:07 pm - 9:32 pmGRK  Killeen Fort Hood Regional-ONT Ontario
8h 25m1 stop Dallas/Fort Worth
$437American Airlines
Tue, Oct 20 - Tue, Oct 27
American Airlines Logo
6:00 am - 2:44 pmONT  Ontario-GRK Killeen Fort Hood Regional
6h 44m1 stop Dallas/Fort Worth
American Airlines Logo
3:16 pm - 9:11 pmGRK  Killeen Fort Hood Regional-ONT Ontario
7h 55m1 stop Dallas/Fort Worth
$450American Airlines
Tue, Nov 24 - Tue, Dec 1
American Airlines Logo
11:59 pm - 9:30 amONT  Ontario-GRK Killeen Fort Hood Regional
7h 31m1 stop Dallas/Fort Worth
American Airlines Logo
6:45 pm - 11:59 pmGRK  Killeen Fort Hood Regional-ONT Ontario
7h 14m1 stop Dallas/Fort Worth
$450American Airlines
Sat, Oct 24 - Sat, Oct 31
American Airlines Logo
7:00 am - 2:44 pmONT  Ontario-GRK Killeen Fort Hood Regional
5h 44m1 stop Dallas/Fort Worth
American Airlines Logo
3:16 pm - 6:44 pmGRK  Killeen Fort Hood Regional-ONT Ontario
5h 28m1 stop Dallas/Fort Worth
$451American Airlines
Booking Insights

Price, demand and travel trends for Ontario to Killeen flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Ontario to Killeen?

Round-trip flights from Ontario to Killeen typically range from $361 to $622. The lowest price found in the past 5 days was $396, on American Airlines.

What's the cheapest day of the week to fly from Ontario to Killeen?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Ontario to Killeen. It’s 25% cheaper than the average day, while Monday is the most expensive, with prices 77% higher.

Find deals

Key details for Ontario to Killeen flights

Low season

February

Cheapest flight

$334
Beat the crowds with an average 47% drop in travelers.
The most popular month to fly with an average 58% increase in travelers.
One-way flight from Ontario to Killeen

When to book flights from Ontario to Killeen

Are your dates flexible? Find out the best times to travel from Ontario to Killeen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Killeen flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Ontario to Killeen?

    Only Economy Class is available on flights from Ontario to Killeen.

  • Do I need a passport to fly from Ontario to Killeen?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Ontario to Killeen flight?

    Round-trip flights from Ontario to Killeen range from $361 to $622, with an average of $402 over the past 12 months. Anything below $361 counts as a good deal.

  • Have flight prices from Ontario to Killeen changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $396 to $832. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from Ontario to Killeen looking right now?

    One-way fares from Ontario to Killeen are currently higher than usual. Average one-way flight prices are about $402, which is 36% above the typical average for this route.

  • What car rental options are available at Killeen Fort Hood Regional Airport (GRK)?

    Killeen Fort Hood Regional Airport (GRK) hosts 5 major car rental companies, with daily rates starting from around $26 for economy cars. Top options include:

    • Budget
    • Dollar
    • Hertz
    • Alamo
    • Enterprise Rent-A-Car

  • Which airports can I use when flying from Ontario to Killeen?

    Flights from Ontario to Killeen usually depart from Ontario (ONT) and arrive at Killeen Fort Hood Regional (GRK).

  • Which airports do connecting flights from Ontario to Killeen pass through?

    Most connecting flights from Ontario to Killeen pass through Dallas/Fort Worth (DFW), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from Ontario to Killeen?

    Yes. Flexible dates can save you up to 58% on flights from Ontario to Killeen. Tuesday is the cheapest departure day at $304 round-trip on average, while Monday is the most expensive at $712, a difference of $408.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Ontario and Killeen?

    Killeen is 2 hours ahead of Ontario (Central Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Ontario to Killeen flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Monday. On this route, Tuesday flights average $304, about $408 less than Monday fares (57% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Killeen trip for September. Fares historically average $339 round-trip in that month - typically $428 less than the most expensive month, which is August (based on the last 12 months).

More options for your flight from Ontario to Killeen

Complete your trip to Killeen with a hotel stay or car rental

Car rentals in Killeen
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