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$56+ Cheap flights from Oklahoma to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
OKC — ONT
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Oklahoma to Ontario

Keep the following information in mind while searching for Oklahoma to Ontario flight deals. Data was last updated September 15, 2025.

Round-trip from

$99
(SmartFares)

One-way from

$56
(Flightnetwork)

Popular in

March

Cheapest in

January

Average price

$350
From Oklahoma to Ontario
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One-way flight from Oklahoma to Ontario
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Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Oklahoma to Ontario

Cheapest flights from Oklahoma to Ontario
Explore the most affordable flight options available from Oklahoma to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This SmartFares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:10 amDFW - ONT
Nonstop3h 12mFrontier
Fri 11/148:24 amONT - DFW
Nonstop3h 07mFrontier
Deal found 9/14$99
This Cheapflightsfares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:30 amDFW - ONT
Nonstop3h 12mFrontier
Sun 11/24:17 pmONT - DFW
Nonstop3h 15mFrontier
Deal found 9/13$102
This Frontier deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:16 pmDFW - ONT
Nonstop3h 13mFrontier
Sun 9/287:15 pmONT - DFW
Nonstop3h 10mFrontier
Deal found 9/13$103
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:10 amDFW - ONT
Nonstop3h 18mFrontier
Sat 10/118:34 amONT - DFW
Nonstop3h 07mFrontier
Deal found 9/14$104
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:10 amDFW - ONT
Nonstop3h 18mFrontier
Fri 10/310:28 pmONT - DFW
1 stop5h 17mFrontier
Deal found 9/14$110
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:15 amDFW - ONT
Nonstop3h 14mFrontier
Mon 11/38:24 amONT - DFW
Nonstop3h 07mFrontier
Deal found 9/14$113
This CheapOair deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:35 amDFW - ONT
Nonstop3h 14mFrontier
Sun 11/24:17 pmONT - DFW
Nonstop3h 15mFrontier
Deal found 9/13$114
This Frontier deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/152:22 pmDFW - ONT
1 stop11h 28mFrontier
Thu 10/164:17 pmONT - DFW
Nonstop3h 15mFrontier
Deal found 9/13$116
This Frontier deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:10 amDFW - ONT
1 stop6h 25mFrontier
Thu 10/164:17 pmONT - DFW
Nonstop3h 15mFrontier
Deal found 9/13$118
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:45 amDFW - ONT
1 stop5h 25mFrontier
Sun 11/97:17 amONT - DFW
Nonstop3h 14mFrontier
Deal found 9/14$119
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:15 amDFW - ONT
Nonstop3h 14mFrontier
Sun 11/24:17 pmONT - DFW
Nonstop3h 15mFrontier
Deal found 9/14$123
This Mytrip deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:03 pmXNA - ONT
1 stop18h 32mFrontier
Sat 10/257:04 amONT - XNA
1 stop7h 04mFrontier
Deal found 9/13$143

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oklahoma to Ontario 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, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Oklahoma to Ontario that are best for you.

Fly from

Oklahoma

Fly to

Ontario

Route

Depart

Return

Price

FayettevilleOntario

XNA - ONT

XNAONT

Fayetteville Northwest Arkansas

Sat 10/18

5:03 pm-11:50 pm

1 stop8h 47m

Ontario

Sun 10/26

6:53 am-6:43 pm

1 stop9h 50m

$144

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Thu 10/2

6:05 am-7:54 pm

1 stop15h 49m

Ontario

Sun 10/12

6:53 am-10:22 am

1 stop25h 29m

$144

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Mon 10/13

7:19 pm-11:50 pm

1 stop6h 31m

Ontario

Thu 10/16

6:53 am-6:28 pm

1 stop9h 35m

$144

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Fri 10/3

6:05 am-7:54 pm

1 stop15h 49m

Ontario

Sun 10/5

8:59 pm-7:01 pm

1 stop20h 02m

$144

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Sun 10/5

2:09 pm-2:00 pm

1 stop25h 51m

Ontario

Thu 10/9

10:30 am-10:17 am

1 stop21h 47m

$145

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Mon 9/29

1:54 pm-8:56 pm

1 stop9h 02m

Ontario

Tue 9/30

8:59 pm-8:38 pm

1 stop21h 39m

$145

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Mon 9/29

7:46 pm-7:54 pm

1 stop26h 08m

Ontario

Fri 10/3

8:59 pm-9:27 pm

1 stop22h 28m

$145

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Fri 10/24

7:21 pm-11:50 pm

1 stop6h 29m

Ontario

Sat 10/25

1:37 pm-1:08 pm

1 stop21h 31m

$160

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Sat 9/20

8:00 am-7:23 am

1 stop25h 23m

Ontario

Sat 9/27

1:37 pm-1:24 pm

1 stop21h 47m

$165

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Sun 10/12

7:46 pm-11:50 pm

1 stop6h 04m

Ontario

Thu 10/16

6:53 am-6:28 pm

1 stop9h 35m

$168

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
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Best time to book a flight from Oklahoma to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Oklahoma with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oklahoma to Ontario

What is the cheapest month to book a flight from Oklahoma to Ontario?

Currently, August is the cheapest month in which you can book a flight from Oklahoma to Ontario (average of $246). Flying from Oklahoma to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OK to ONT?

Find hourly flight availability from Oklahoma to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Oklahoma to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Oklahoma to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Oklahoma?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Oklahoma. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Oklahoma to Ontario?

    A quick flight from Oklahoma to Ontario can take about 8h. Frontier provides one of the quickest options available for as low as $272. Airlines will cover a distance of 1232 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Oklahoma to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $72. Users have also found prices from $109 and $144 on Alaska Airlines and United Airlines, respectively.

  • What are the most popular routes from Oklahoma to Ontario?

    When deciding which route to take from Oklahoma to Ontario consider Dallas/Fort Worth - Ontario, Fayetteville Northwest Arkansas - Ontario or Tulsa - Ontario as they are the most popular.

  • Can I find deals for flights from Oklahoma to Ontario that include hotel bookings?

    Yes. In addition to deals on Oklahoma to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oklahoma to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oklahoma to Ontario.

  • Can I find deals for business class flights from Oklahoma to Ontario?

    Yes. Cheapflights offers flight deals from Oklahoma to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oklahoma to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Oklahoma to Ontario (average of $246). Flying from Oklahoma to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Oklahoma to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Oklahoma to Ontario

Discover the top 4 airlines that operate flights from Oklahoma to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$223FlexibilityNo cancel feeOn-time62%
DeltaCheapest$158Average$306FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$233Average$390FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$266Average$386FlexibilityNo cancel feeOn-time71%

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