HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$99+ Cheap flights from Kansas 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
ICT — ONT
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kansas to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kansas to Ontario

Keep the following information in mind while searching for Kansas to Ontario flight deals. Data was last updated August 2, 2025.

Round-trip from

$215
(FlightHub)

One-way from

$99
(Frontier)

Popular in

October

Cheapest in

June

Average price

$374
From Kansas to Ontario
Search Deals
One-way flight from Kansas to Ontario
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Kansas to Ontario

Cheapest flights from Kansas to Ontario
Explore the most affordable flight options available from Kansas to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2025.

This FlightHub deal was found by Cheapflights users on 8/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/48:01 pmMCI - ONT
1 stop15h 08mFrontier
Tue 8/512:59 amONT - MCI
1 stop15h 24mFrontier
Deal found 8/1$215
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/278:45 amTUL - ONT
1 stop4h 47mAmerican Airlines
Tue 9/211:59 pmONT - TUL
1 stop7h 25mAmerican Airlines
Deal found 7/31$237
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:23 pmTUL - ONT
1 stop6h 02mUnited Airlines
Tue 9/26:50 pmONT - TUL
2 stops12h 09mUnited Airlines
Deal found 7/31$242
This Trip.com deal was found by Cheapflights users on 7/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1810:54 pmICT - ONT
1 stop19h 24mMultiple Airlines
Fri 8/226:00 amONT - ICT
1 stop14h 07mMultiple Airlines
Deal found 7/31$249
This Delta deal was found by Cheapflights users on 8/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/224:25 pmTUL - ONT
1 stop7h 55mDelta
Mon 8/254:50 pmONT - TUL
1 stop5h 09mDelta
Deal found 8/1$273
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amICT - ONT
1 stop14h 16mAmerican Airlines
Sun 9/2811:59 pmONT - ICT
1 stop7h 37mAmerican Airlines
Deal found 7/31$277
This Southwest deal was found by Cheapflights users on 7/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:45 amMCI - ONT
1 stop7h 55mSouthwest
Wed 9/2412:35 pmONT - MCI
1 stop5h 15mSouthwest
Deal found 7/31$292
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/224:55 pmMCI - ONT
1 stop8h 58mAlaska Airlines
Tue 8/267:10 amONT - MCI
1 stop6h 51mAlaska Airlines
Deal found 7/30$296
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:59 pmMCI - ONT
1 stop7h 41mDelta
Sat 8/306:05 amONT - MCI
1 stop5h 13mDelta
Deal found 7/30$297
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:01 pmICT - ONT
1 stop8h 14mDelta
Sat 9/2711:55 amONT - ICT
1 stop7h 36mDelta
Deal found 7/31$297
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/213:49 pmMCI - ONT
1 stop7h 39mAmerican Airlines
Wed 8/2712:22 pmONT - MCI
2 stops8h 26mAmerican Airlines
Deal found 7/31$302
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/103:28 pmMCI - ONT
1 stop10h 35mHawaiian Airlines
Tue 10/147:10 amONT - MCI
1 stop7h 12mHawaiian Airlines
Deal found 7/30$331

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansas 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 August 2, 2025.
Use the filters below to find and compare flights from Kansas to Ontario that are best for you.

Fly from

Kansas

Fly to

Ontario

Route

Depart

Return

Price

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Fri 9/26

3:01 pm-7:54 pm

1 stop6h 53m

Ontario

Sat 10/4

8:59 pm-1:48 pm

1 stop14h 49m

$215

TulsaOntario

TUL - ONT

TULONT

Tulsa

Wed 8/27

8:45 am-11:32 am

1 stop4h 47m

Ontario

Tue 9/2

11:59 pm-9:24 am

1 stop7h 25m

$237

TulsaOntario

TUL - ONT

TULONT

Tulsa

Wed 8/27

5:23 pm-9:25 pm

1 stop6h 02m

Ontario

Tue 9/2

6:50 pm-8:59 am

2 stops12h 09m

$242

WichitaOntario

ICT - ONT

ICTONT

Wichita Eisenhower National

Mon 8/18

10:54 pm-4:18 pm

1 stop19h 24m

Ontario

Fri 8/22

6:00 am-10:07 pm

1 stop14h 07m

$249

TulsaOntario

TUL - ONT

TULONT

Tulsa

Fri 8/22

4:25 pm-10:20 pm

1 stop7h 55m

Ontario

Mon 8/25

4:50 pm-11:59 pm

1 stop5h 09m

$273

WichitaOntario

ICT - ONT

ICTONT

Wichita Eisenhower National

Wed 9/24

6:00 am-6:16 pm

1 stop14h 16m

Ontario

Sun 9/28

11:59 pm-9:36 am

1 stop7h 37m

$277

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Wed 9/17

8:45 am-2:40 pm

1 stop7h 55m

Ontario

Wed 9/24

12:35 pm-7:50 pm

1 stop5h 15m

$292

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Fri 8/22

4:55 pm-11:53 pm

1 stop8h 58m

Ontario

Mon 8/25

3:04 pm-11:59 pm

1 stop6h 55m

$296

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Thu 8/21

5:59 pm-11:40 pm

1 stop7h 41m

Ontario

Sat 8/30

6:05 am-1:18 pm

1 stop5h 13m

$297

WichitaOntario

ICT - ONT

ICTONT

Wichita Eisenhower National

Thu 9/25

1:01 pm-7:15 pm

1 stop8h 14m

Ontario

Sat 9/27

11:55 am-9:31 pm

1 stop7h 36m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 33 results
1
2
3
4

Best time to book a flight from Kansas to Ontario

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

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

Currently, August is the cheapest month in which you can book a flight from Kansas to Ontario (average of $246). Flying from Kansas 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 KS to ONT?

Find hourly flight availability from Kansas 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 August 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kansas to Ontario as you normally would.

How much does it cost to fly round-trip from Kansas to Ontario?

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 August 2, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Kansas to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,983 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,904 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Kansas 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 Kansas?

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

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

    One-way options have recently been found by users for as low as $99 on Frontier. Other airlines that offer cheap prices include American Airlines from $119 and Delta from $129 one-way.

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

    Most travelers choose Kansas City - Ontario, Tulsa - Ontario or Wichita Eisenhower National - Ontario when deciding on the best route from Kansas to Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kansas 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 Kansas to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Kansas to Ontario (average of $246). Flying from Kansas 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kansas to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to San Francisco flights
Los Angeles to Las Vegas flights
Dallas/Fort Worth to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Newark to San Francisco flights
Newark to Las Vegas flights
O'Hare Intl to Las Vegas flights
LaGuardia to Los Angeles flights
LaGuardia to Las Vegas flights
Hobby to Las Vegas flights
Burbank to Las Vegas flights
Los Angeles to San Jose flights
Seattle to Las Vegas flights
Los Angeles to San Francisco flights
Santa Ana to Las Vegas flights
Seattle to San Francisco flights
San Jose to Los Angeles flights
San Francisco to Ontario flights
Santa Ana to San Francisco flights
San Francisco to Los Angeles flights
Boston to Las Vegas flights
Dulles Intl to Las Vegas flights
Denver to Las Vegas flights
San Francisco to Las Vegas flights
Seattle to Los Angeles flights
Boston to Los Angeles flights
LaGuardia to San Francisco flights
Ontario to San Francisco flights
Santa Ana to Oakland flights
Reagan-National to Las Vegas flights
Reagan-National to Los Angeles flights
San Francisco to Santa Ana flights
Austin to Las Vegas flights
Baltimore to Las Vegas flights
Oakland to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Seattle to San Diego flights
O'Hare Intl to Los Angeles flights
John F Kennedy Intl to Ontario flights
Oakland to Santa Ana flights
Newark to Burbank flights
Oakland to Los Angeles flights
San Jose to Las Vegas flights
Love Field to Las Vegas flights
Atlanta to Las Vegas flights
Fort Lauderdale to Las Vegas flights
Minneapolis to Las Vegas flights

Top 3 airlines flying from Kansas to Ontario

Discover the top 3 airlines that operate flights from Kansas 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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$296Average$436FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$306Average$401FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$311Average$410FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.