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Cheap flights from Ontario to Killeen from $228

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 9/20. 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

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Find the cheapest flights from Ontario to Killeen (ONT-GRK)

Cheap round-trip flights

American Airlines Logo
2:54 pm - 10:45 pmONT-GRK
5h 51m1 stop
American Airlines Logo
5:16 am - 10:03 amGRK-ONT
6h 47m1 stop
$305American Airlines
Find Deal
sáb., sep. 20 - sáb., oct. 4
American Airlines Logo
2:54 pm - 10:45 pmONT-GRK
5h 51m1 stop
American Airlines Logo
5:16 am - 11:56 amGRK-ONT
8h 40m2 stops
$310American Airlines
Find Deal
sáb., sep. 20 - sáb., sep. 27
American Airlines Logo
1:10 pm - 10:45 pmONT-GRK
7h 35m2 stops
American Airlines Logo
12:19 pm - 6:16 pmGRK-ONT
7h 57m2 stops
$315American Airlines
Find Deal
sáb., sep. 20 - sáb., oct. 4
American Airlines Logo
8:15 am - 4:10 pmONT-GRK
5h 55m1 stop
American Airlines Logo
4:40 pm - 10:33 pmGRK-ONT
7h 53m1 stop
$340American Airlines
Find Deal
sáb., sep. 6 - sáb., sep. 20
American Airlines Logo
10:20 am - 10:45 pmONT-GRK
10h 25m2 stops
American Airlines Logo
4:40 pm - 10:33 pmGRK-ONT
7h 53m1 stop
$345American Airlines
Find Deal
sáb., sep. 6 - sáb., sep. 20
American Airlines Logo
6:10 am - 4:10 pmONT-GRK
8h 00m2 stops
American Airlines Logo
10:17 am - 6:16 pmGRK-ONT
9h 59m2 stops
$350American Airlines
Find Deal
sáb., sep. 6 - sáb., sep. 20
American Airlines Logo
2:54 pm - 10:45 pmONT-GRK
5h 51m1 stop
American Airlines Logo
4:32 pm - 10:16 pmGRK-ONT
7h 44m1 stop
$362American Airlines
Find Deal
sáb., sep. 20 - dom., oct. 5
American Airlines Logo
10:20 am - 10:45 pmONT-GRK
10h 25m2 stops
American Airlines Logo
4:32 pm - 10:16 pmGRK-ONT
7h 44m1 stop
$367American Airlines
Find Deal
sáb., sep. 20 - dom., oct. 5
American Airlines Logo
1:10 pm - 11:27 pmONT-GRK
8h 17m2 stops
American Airlines Logo
5:16 am - 11:56 amGRK-ONT
8h 40m2 stops
$372American Airlines
Find Deal
jue., sep. 18 - sáb., oct. 4
American Airlines Logo
6:10 am - 4:02 pmONT-GRK
7h 52m1 stop
American Airlines Logo
10:17 am - 1:54 pmGRK-ONT
5h 37m1 stop
$375American Airlines
Find Deal
sáb., ago. 23 - sáb., sep. 6

American Airlines flights from Ontario to Killeen

Our best American Airlines deals on Ontario to Killeen flight tickets
American Airlines
Sep 20
ONT2:54 pmOntario
5h 51m
1 stop
GRK10:45 pmKilleen Fort Hood Regional
Oct 4
GRK5:16 amKilleen Fort Hood Regional
6h 47m
1 stop
ONT10:03 amOntario
$305
Find similar
American Airlines
Sep 20
ONT2:54 pmOntario
5h 51m
1 stop
GRK10:45 pmKilleen Fort Hood Regional
Sep 27
GRK5:16 amKilleen Fort Hood Regional
8h 40m
2 stops
ONT11:56 amOntario
$310
Find similar
American Airlines
Sep 20
ONT1:10 pmOntario
7h 35m
2 stops
GRK10:45 pmKilleen Fort Hood Regional
Oct 4
GRK12:19 pmKilleen Fort Hood Regional
7h 57m
2 stops
ONT6:16 pmOntario
$315
Find similar

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 agosto 12, 2025.
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

sáb. 9/20

2:54 pm-10:45 pm

1 stop5h 51m

Killeen Fort Hood Regional

sáb. 10/4

5:16 am-10:03 am

1 stop6h 47m

$305

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 9/20

2:54 pm-10:45 pm

1 stop5h 51m

Killeen Fort Hood Regional

sáb. 9/27

5:16 am-11:56 am

2 stops8h 40m

$310

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 9/20

1:10 pm-10:45 pm

2 stops7h 35m

Killeen Fort Hood Regional

sáb. 10/4

12:19 pm-6:16 pm

2 stops7h 57m

$315

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 9/6

8:15 am-4:10 pm

1 stop5h 55m

Killeen Fort Hood Regional

sáb. 9/20

4:40 pm-10:33 pm

1 stop7h 53m

$340

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 9/6

10:20 am-10:45 pm

2 stops10h 25m

Killeen Fort Hood Regional

sáb. 9/20

4:40 pm-10:33 pm

1 stop7h 53m

$345

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 9/6

6:10 am-4:10 pm

2 stops8h 00m

Killeen Fort Hood Regional

sáb. 9/20

10:17 am-6:16 pm

2 stops9h 59m

$350

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 9/20

2:54 pm-10:45 pm

1 stop5h 51m

Killeen Fort Hood Regional

dom. 10/5

4:32 pm-10:16 pm

1 stop7h 44m

$362

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 9/20

10:20 am-10:45 pm

2 stops10h 25m

Killeen Fort Hood Regional

dom. 10/5

4:32 pm-10:16 pm

1 stop7h 44m

$367

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

jue. 9/18

1:10 pm-11:27 pm

2 stops8h 17m

Killeen Fort Hood Regional

sáb. 10/4

5:16 am-11:56 am

2 stops8h 40m

$372

OntarioKilleen

ONT - GRK

ONTGRK

Ontario

sáb. 8/23

6:10 am-4:02 pm

1 stop7h 52m

Killeen Fort Hood Regional

sáb. 9/6

10:17 am-1:54 pm

1 stop5h 37m

$375

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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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 day to depart on your flight to Killeen?

On average, the least expensive day to fly to Killeen from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $346. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Killeen is Monday, with ticket prices averaging around $677.

What is the cheapest time of day to depart on your flight to Killeen?

According to our data, the cheapest time of day to fly to Killeen is in the evening. momondo users have found flights departing from Ontario to Killeen in the evening for as low as $412. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Killeen are more costly in the afternoon, with an average ticket price of $492. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Best Price Found

$228

Fastest flight time

4h 38m

Direct flights

None

Airports in Killeen

1 airport
The best one-way flight to Killeen from Ontario in the past 72 hours is $228. The best round-trip flight deal from Ontario to Killeen found on momondo in the last 72 hours is $305.
The fastest flight from Ontario to Killeen takes 4h 38m
There are no direct flights from Ontario to Killeen. Popular non-direct route for this connection is Ontario Airport - Killeen Fort Hood Regional Airport.
There is 1 airport near Killeen: Killeen Fort Hood Regional (GRK)
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 47m, 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
10,000 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.

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