Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Killeen from $186

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Killeen departing on 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Killeen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:58 pm - 9:45 am
ONT
-
GRK
7h 47m1 stop
American Airlines Logo
6:33 pm - 10:49 pm
GRK
-
ONT
6h 16m1 stop
$371American Airlines
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
2:39 pm - 10:36 pm
ONT
-
GRK
5h 57m1 stop
American Airlines Logo
11:56 am - 4:19 pm
GRK
-
ONT
6h 23m1 stop
$405American Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
12:26 pm - 10:36 pm
ONT
-
GRK
8h 10m2 stops
American Airlines Logo
11:56 am - 4:19 pm
GRK
-
ONT
6h 23m1 stop
$410American Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
12:26 pm - 10:36 pm
ONT
-
GRK
8h 10m2 stops
American Airlines Logo
10:15 am - 4:22 pm
GRK
-
ONT
8h 07m2 stops
$416American Airlines
Sat, Feb 14 - Sat, Feb 21
American Airlines Logo
6:15 am - 6:03 pm
ONT
-
GRK
9h 48m2 stops
American Airlines Logo
6:33 pm - 10:49 pm
GRK
-
ONT
6h 16m1 stop
$435American Airlines
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
6:15 am - 6:03 pm
ONT
-
GRK
9h 48m2 stops
American Airlines Logo
6:33 pm - 10:49 pm
GRK
-
ONT
6h 16m1 stop
$455American Airlines
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
6:15 am - 6:03 pm
ONT
-
GRK
9h 48m2 stops
American Airlines Logo
11:56 am - 10:07 pm
GRK
-
ONT
12h 11m2 stops
$643American Airlines
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
6:15 am - 6:03 pm
ONT
-
GRK
9h 48m2 stops
American Airlines Logo
11:56 am - 6:15 pm
GRK
-
ONT
8h 19m2 stops
$724American Airlines
Thu, Feb 12 - Mon, Feb 16

American Airlines flights from Ontario to Killeen

Our best American Airlines deals on Ontario to Killeen flight tickets
American Airlines
Feb 12
ONT11:58 pmOntario
7h 47m
1 stop
GRK9:45 amKilleen Fort Hood Regional
Feb 16
GRK6:33 pmKilleen Fort Hood Regional
6h 16m
1 stop
ONT10:49 pmOntario
$371
American Airlines
Feb 14
ONT2:39 pmOntario
5h 57m
1 stop
GRK10:36 pmKilleen Fort Hood Regional
Feb 21
GRK11:56 amKilleen Fort Hood Regional
6h 23m
1 stop
ONT4:19 pmOntario
$405
American Airlines
Feb 14
ONT12:26 pmOntario
8h 10m
2 stops
GRK10:36 pmKilleen Fort Hood Regional
Feb 21
GRK11:56 amKilleen Fort Hood Regional
6h 23m
1 stop
ONT4:19 pmOntario
$410

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Killeen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated January 11, 2026.
Use the filters below to find and compare flights from Ontario to Killeen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Thu 2/12

11:58 pm-9:45 am

1 stop7h 47m

Killeen Fort Hood Regional

Mon 2/16

6:33 pm-10:49 pm

1 stop6h 16m

$371

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Sat 2/14

2:39 pm-10:36 pm

1 stop5h 57m

Killeen Fort Hood Regional

Sat 2/21

11:56 am-4:19 pm

1 stop6h 23m

$405

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Sat 2/14

12:26 pm-10:36 pm

2 stops8h 10m

Killeen Fort Hood Regional

Sat 2/21

11:56 am-4:19 pm

1 stop6h 23m

$410

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Sat 2/14

12:26 pm-10:36 pm

2 stops8h 10m

Killeen Fort Hood Regional

Sat 2/21

10:15 am-4:22 pm

2 stops8h 07m

$416

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Thu 2/12

6:15 am-6:03 pm

2 stops9h 48m

Killeen Fort Hood Regional

Mon 2/16

6:33 pm-10:49 pm

1 stop6h 16m

$435

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Thu 2/12

6:15 am-6:03 pm

2 stops9h 48m

Killeen Fort Hood Regional

Mon 2/16

6:33 pm-10:49 pm

1 stop6h 16m

$455

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Thu 2/12

6:15 am-6:03 pm

2 stops9h 48m

Killeen Fort Hood Regional

Mon 2/16

11:56 am-10:07 pm

2 stops12h 11m

$643

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Thu 2/12

6:15 am-6:03 pm

2 stops9h 48m

Killeen Fort Hood Regional

Mon 2/16

11:56 am-6:15 pm

2 stops8h 19m

$724

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Wed 2/18

11:58 pm-9:45 am

1 stop7h 47m

$186

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

Fri 1/30

3:09 pm-10:43 pm

1 stop5h 34m

$244

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

See travel insights to Killeen from

How to get the cheapest flight ticket from Ontario to Killeen

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Killeen Fort Hood Regional?

American Airlines is the most popular carrier operating from Ontario to Killeen Fort Hood Regional

What airlines fly to Killeen?

Southwest, American Airlines and Delta are the top three most popular airlines that fly to Killeen from Ontario according to our data. Southwest is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Killeen. Keep in mind that there are 8 different airlines that fly to Killeen on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Killeen

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Killeen according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Killeen (ONT to GRK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Killeen

Fastest flight time

5h 34m

Direct flights

None
The fastest flight from Ontario to Killeen takes 5h 34m
There are no direct flights from Ontario to Killeen. There are no popular flight routes from Ontario to Killeen.
Search flight deals

  • How far is Ontario to Killeen Fort Hood Regional by plane?

    The distance between Ontario and Killeen Fort Hood Regional is about 1174.8 mi. Flights usually cover this in 5h 34m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Killeen Fort Hood Regional Airport?

    Prices for flights from Ontario Airport to Killeen Fort Hood Regional Airport were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to Killeen Fort Hood Regional Airport?

  • How old do you have to be to fly from Ontario Airport to Killeen Fort Hood Regional Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Killeen Fort Hood Regional Airport.

  • What documentation or ID do you need to fly to Killeen Fort Hood Regional Airport?

    The necessary travel and health documents for your Killeen Fort Hood Regional Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Killeen?

Best airlines flying from Ontario to Killeen

Compare and see reviews for airlines that fly from Ontario to Killeen with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $304Free CancellationRating
7.2
11,100 reviews
Search American Airlines flights

Traveling to a place near Killeen?

Book flights to Killeen if you plan to visit one of these locations
Temple
Salado
Copperas Cove
Fort Hood

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Killeen?

Finding the right flight to Killeen from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Killeen quick and easy, saving you time and money.

Can I find flights from Ontario to Killeen with flexible booking policies on momondo?

momondo does allow users to show only those flights to Killeen from Ontario which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Ontario to Killeen?

momondo provides multiple filters to help you find the best flight to Killeen from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Killeen right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Killeen now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Killeen and let you know when they change.

An easier way to manage your Killeen trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 2/10
Tue 2/17
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States