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$90+ Cheap flights from Oklahoma City to Ontario (OKC - 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
OKC — ONT
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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Cheap flight deals from Oklahoma City to Ontario

Cheapest flights from Oklahoma City to Ontario
Explore the most affordable flight options available from Oklahoma City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 19, 2026.

This Frontier deal was found by Cheapflights users on 2/18. 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.
Fri 4/108:30 pm
OKC
-
ONT
1 stop5h 26m
Frontier
Sun 4/126:20 am
ONT
-
OKC
1 stop11h 25m
Frontier
Deal found 2/18$180
This Booking.com deal was found by Cheapflights users on 2/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:30 pm
OKC
-
ONT
1 stop6h 25m
Frontier
Tue 4/2112:59 am
ONT
-
OKC
1 stop15h 46m
Frontier
Deal found 2/18$187
This CheapOair deal was found by Cheapflights users on 2/18. 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.
Fri 4/175:30 pm
OKC
-
ONT
1 stop19h 14m
Frontier
Sun 4/1912:59 am
ONT
-
OKC
1 stop16h 49m
Frontier
Deal found 2/18$191
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:12 pm
OKC
-
ONT
1 stop14h 54m
Frontier
Tue 3/106:15 am
ONT
-
OKC
1 stop11h 30m
Frontier
Deal found 2/17$192
This Frontier deal was found by Cheapflights users on 2/15. 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 3/268:30 pm
OKC
-
ONT
1 stop5h 29m
Frontier
Tue 3/316:15 am
ONT
-
OKC
1 stop11h 30m
Frontier
Deal found 2/15$199
This Frontier deal was found by Cheapflights users on 2/17. 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.
Tue 3/178:30 pm
OKC
-
ONT
1 stop5h 29m
Frontier
Tue 3/246:15 am
ONT
-
OKC
1 stop11h 30m
Frontier
Deal found 2/17$201
This CheapOair deal was found by Cheapflights users on 2/15. 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.
Sun 5/108:30 pm
OKC
-
ONT
1 stop13h 01m
Frontier
Fri 5/1512:59 am
ONT
-
OKC
1 stop14h 29m
Frontier
Deal found 2/15$212
This Frontier deal was found by Cheapflights users on 2/18. 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.
Fri 3/278:30 pm
OKC
-
ONT
1 stop5h 29m
Frontier
Tue 4/76:20 am
ONT
-
OKC
1 stop11h 25m
Frontier
Deal found 2/18$215
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/911:24 am
OKC
-
ONT
1 stop6h 13m
Frontier
Wed 3/1810:03 pm
ONT
-
OKC
1 stop10h 36m
Frontier
Deal found 2/17$219
This Frontier deal was found by Cheapflights users on 2/18. 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.
Fri 2/278:30 pm
OKC
-
ONT
1 stop5h 29m
Frontier
Sun 3/110:14 pm
ONT
-
OKC
1 stop10h 15m
Frontier
Deal found 2/18$222
This Frontier deal was found by Cheapflights users on 2/16. 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.
Mon 3/911:24 am
OKC
-
ONT
1 stop6h 13m
Frontier
Mon 3/166:15 am
ONT
-
OKC
1 stop11h 30m
Frontier
Deal found 2/16$224

Find flight deals from Oklahoma City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Oklahoma City (OKC) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$180
(Frontier)

One-way from

$90
(Frontier)

Popular in

February

Cheapest in

June

Average price

$494
Provider with most accurate pricing for Oklahoma City Will Rogers World-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oklahoma City Will Rogers World-Ontario flights.
Search Deals
From Oklahoma City Will Rogers World to Ontario
Search Deals
One-way flight from Oklahoma City Will Rogers World to Ontario
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oklahoma City 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 February 19, 2026.
Use the filters below to find and compare flights from Oklahoma City to Ontario that are best for you.

Fly from

Oklahoma City

Fly to

Ontario

Route

Depart

Return

Price

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Wed 3/18

8:30 pm-11:59 pm

1 stop5h 29m

Ontario

Wed 3/25

6:15 am-7:45 pm

1 stop11h 30m

$180

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Fri 4/10

8:30 pm-11:56 pm

1 stop5h 26m

Ontario

Sun 4/12

6:20 am-7:45 pm

1 stop11h 25m

$180

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Mon 4/20

8:30 pm-11:55 pm

1 stop5h 25m

Ontario

Tue 4/21

12:59 am-6:45 pm

1 stop15h 46m

$191

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Wed 4/8

8:30 pm-11:56 pm

1 stop5h 26m

Ontario

Sun 4/19

12:59 am-7:48 pm

1 stop16h 49m

$191

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Fri 4/17

5:30 pm-10:44 am

1 stop19h 14m

Ontario

Sun 4/19

12:59 am-7:48 pm

1 stop16h 49m

$191

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Tue 4/21

7:30 pm-11:55 pm

1 stop6h 25m

Ontario

Thu 4/23

5:33 pm-7:48 pm

1 stop24h 15m

$191

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Sun 5/10

8:30 pm-7:31 am

1 stop13h 01m

Ontario

Fri 5/15

12:59 am-5:28 pm

1 stop14h 29m

$212

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Sun 5/10

8:30 pm-7:31 am

1 stop13h 01m

Ontario

Fri 5/15

5:33 pm-5:28 pm

1 stop21h 55m

$212

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Tue 5/12

7:30 pm-11:55 pm

1 stop6h 25m

Ontario

Sun 5/17

5:33 pm-7:48 pm

1 stop24h 15m

$212

Oklahoma CityOntario

OKC - ONT

OKCONT

Oklahoma City Will Rogers World

Mon 3/9

11:24 am-3:37 pm

1 stop6h 13m

Ontario

Wed 3/18

10:03 pm-10:39 am

1 stop10h 36m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Oklahoma City to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Oklahoma City to Ontario in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Oklahoma City-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oklahoma City-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oklahoma City-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oklahoma City-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Oklahoma City-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Oklahoma City to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Oklahoma City 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 City to Ontario

How far ahead should I book a flight from Oklahoma City to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Oklahoma City to Ontario. Price data was last updated on February 18, 2026.

The best time to book flights from Oklahoma City to Ontario is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, June is the cheapest month in which you can book a flight from Oklahoma City to Ontario (average of $112). Flying from Oklahoma City to Ontario in May is currently the most expensive (average of $188). 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.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated February 19, 2026.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from Oklahoma City to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,212 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,313 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.7
Fair
3,048 reviews
Southwest
8.0
Very good
4,295 reviews

Comfort

8.0

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • How popular is this Oklahoma City to Ontario flight route?

    Within the past month, 1 users have taken a look at flights from Oklahoma City Will Rogers World to Ontario.

  • How long is the flight from Oklahoma City to Ontario?

    A quick flight from Oklahoma City to Ontario can take about 5h 29m. Frontier provides one of the quickest options available for as low as $180. Oklahoma City and Ontario are separated by a distance of 1137 mi.

  • What are the cheapest airlines flying from Oklahoma City to Ontario round-trip?

    Currently priced at $125, Frontier will fly you from Oklahoma City to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Southwest - these airlines can fly you to your destination from $158 and $196, respectively. Frontier is priced at 62% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $72. Southwest flights start at $84 while deals on American Airlines start at $131 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oklahoma City 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 City to Ontario?

    Currently, June is the cheapest month in which you can book a flight from Oklahoma City to Ontario (average of $112). Flying from Oklahoma City to Ontario in May is currently the most expensive (average of $188). 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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Top 4 airlines flying from Oklahoma City to Ontario

Discover the top 4 airlines that operate flights from Oklahoma City 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 February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$125Average$230FlexibilityNo cancel feeOn-time62%
DeltaCheapest$158Average$266FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$196Average$356FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$266Average$382FlexibilityNo cancel feeOn-time71%

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