GRK - ONT

$196 Find Cheap Flights from Killeen to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Killeen to Ontario departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Killeen to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Killeen to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$365
American Airlines
Sat 7/11Sat 7/18
GRK - ONT • 1 stop
Cheapest one-way
$196
American Airlines
Sat 8/15
GRK - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Killeen and Ontario. You'll need at least 1 connection.
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Flight Deals

Cheap Flights from Killeen to Ontario (GRK-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Killeen to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Killeen to Ontario

Sat, Jul 11 - Sat, Jul 18
American Airlines Logo
3:07 pm - 7:59 pm
GRK
-
ONT
6h 52m
1 stop
American Airlines Logo
2:15 pm - 11:39 pm
ONT
-
GRK
7h 24m
1 stop
$365American Airlines
Sat, Jul 11 - Sat, Jul 18
American Airlines Logo
12:54 pm - 9:45 pm
GRK
-
ONT
10h 51m
2 stops
American Airlines Logo
2:15 pm - 11:39 pm
ONT
-
GRK
7h 24m
1 stop
$370American Airlines
Sat, Jul 11 - Sat, Jul 18
American Airlines Logo
12:54 pm - 9:45 pm
GRK
-
ONT
10h 51m
2 stops
American Airlines Logo
1:10 pm - 11:39 pm
ONT
-
GRK
8h 29m
2 stops
$375American Airlines
Fri, Jul 10 - Sat, Jul 18
American Airlines Logo
7:21 pm - 10:33 pm
GRK
-
ONT
5h 12m
1 stop
American Airlines Logo
2:15 pm - 11:39 pm
ONT
-
GRK
7h 24m
1 stop
$441American Airlines
Sat, Jul 11 - Fri, Jul 17
American Airlines Logo
3:07 pm - 7:59 pm
GRK
-
ONT
6h 52m
1 stop
American Airlines Logo
7:14 pm - 9:36 am
ONT
-
GRK
12h 22m
2 stops
$446American Airlines
Sat, Jul 11 - Fri, Jul 17
American Airlines Logo
5:00 am - 12:03 pm
GRK
-
ONT
9h 03m
2 stops
American Airlines Logo
7:14 pm - 9:36 am
ONT
-
GRK
12h 22m
2 stops
$451American Airlines
Tue, Jul 14 - Fri, Jul 17
American Airlines Logo
7:21 pm - 11:59 pm
GRK
-
ONT
6h 38m
1 stop
American Airlines Logo
7:14 pm - 9:36 am
ONT
-
GRK
12h 22m
2 stops
$459American Airlines
Sun, Jul 12 - Sat, Jul 18
American Airlines Logo
7:21 pm - 10:33 pm
GRK
-
ONT
5h 12m
1 stop
American Airlines Logo
2:15 pm - 11:39 pm
ONT
-
GRK
7h 24m
1 stop
$461American Airlines
Tue, Jul 14 - Fri, Jul 17
American Airlines Logo
5:00 am - 12:03 pm
GRK
-
ONT
9h 03m
2 stops
American Airlines Logo
7:14 pm - 9:36 am
ONT
-
GRK
12h 22m
2 stops
$464American Airlines
Sat, May 23 - Wed, May 27
American Airlines Logo
7:59 pm - 11:59 pm
GRK
-
ONT
6h 00m
1 stop
American Airlines Logo
2:18 pm - 10:44 pm
ONT
-
GRK
6h 26m
1 stop
$465American Airlines
Booking Insights

Good to know

Cheapest flight$196
Flight from Killeen to Ontario

When to book flights from Killeen to Ontario

Are your dates flexible? Find out the best times to travel from Killeen to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Killeen to Ontario

  • What is the cheapest flight from Killeen to Ontario?

    In the last 3 days, the lowest price for a flight from Killeen to Ontario was $196 for a one-way ticket and $365 for a round-trip.

  • Do I need a passport to fly between Killeen and Ontario?

    No, a passport isn't needed to fly from Killeen to Ontario. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Killeen to Ontario?

    On your way to Ontario, you’ll fly out from Killeen Fort Hood Regional. You’ll be landing at Ontario.

  • Which aircraft models fly most regularly from Killeen to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Killeen to Ontario?

    oneworld is the only airline alliance operating flights between Killeen and Ontario.

  • How does KAYAK find such low prices on flights from Killeen to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Killeen to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Killeen to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Killeen is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Killeen to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Killeen with another airline. Booking your flights between Killeen and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Killeen to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Killeen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Killeen to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Killeen to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Killeen to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11580 reviews
7.9Crew
6.4Food
6.9Entertainment
7.2Comfort
7.5Boarding
Airline reviews

Wifi was spotty. Tray table was very dirty when I sat down.

4.0 OkayTimothy, Apr 2026
JFK - LAX
Read more American Airlines reviews

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Delayed for mechanical and no updates on what was happening and how long the delay might be.

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

Everything you need to know for your flight from Killeen to Ontario

Information on your arrival and departure airports

Killeen (GRK)
Ontario (ONT)