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$81+ Cheap flights from Ontario to Kansas City (ONT - MCI)

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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MCI
ago. 2 — ago. 91
sáb. 8/2
sáb. 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Kansas City are usually found in August or September, booked 75 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Ontario to Kansas City

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kansas City (MCI). 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 julio 28, 2025.

Round-trip from

$204
(Alaska Airlines)

One-way from

$81
(Trip.com)

Popular in

May

Cheapest in

August

Average price

$398
From Ontario to Kansas City
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One-way flight from Ontario to Kansas City
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Highest demand for flights based on searches. 11% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Ontario to Kansas City

Cheapest flights from Ontario to Kansas City
Explore the most affordable flight options available from Ontario to Kansas City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/25. 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.
jue. 9/43:06 pmONT - MCI
1 stop6h 53mAlaska Airlines
mar. 9/97:00 amMCI - ONT
1 stop9h 12mAlaska Airlines
Deal found 7/25$204
This FlightHub deal was found by Cheapflights users on 7/26. 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.
jue. 7/3112:59 amONT - MCI
1 stop16h 05mFrontier
mié. 8/67:20 pmMCI - ONT
1 stop15h 49mFrontier
Deal found 7/26$215
This Delta deal was found by Cheapflights users on 7/25. 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.
mié. 9/36:05 amONT - MCI
1 stop5h 13mDelta
sáb. 9/65:45 amMCI - ONT
1 stop5h 10mDelta
Deal found 7/25$257
This Southwest deal was found by Cheapflights users on 7/26. 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.
mar. 9/3012:35 pmONT - MCI
1 stop5h 15mSouthwest
mar. 10/74:20 pmMCI - ONT
1 stop6h 05mSouthwest
Deal found 7/26$292
This Orbitz deal was found by Cheapflights users on 7/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/187:10 amONT - MCI
1 stop7h 12mMultiple Airlines
dom. 10/197:51 pmMCI - ONT
1 stop5h 59mMultiple Airlines
Deal found 7/27$312
This American Airlines deal was found by Cheapflights users on 7/26. 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.
mié. 10/81:00 pmONT - MCI
2 stops7h 50mAmerican Airlines
sáb. 10/115:50 amMCI - ONT
1 stop5h 39mAmerican Airlines
Deal found 7/26$313
This Hawaiian Airlines deal was found by Cheapflights users on 7/26. 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.
sáb. 9/277:10 amONT - MCI
1 stop6h 51mHawaiian Airlines
mar. 9/307:00 amMCI - ONT
1 stop9h 12mHawaiian Airlines
Deal found 7/26$318
This United Airlines deal was found by Cheapflights users on 7/28. 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.
dom. 8/246:04 amONT - MCI
1 stop6h 09mUnited Airlines
sáb. 8/305:15 pmMCI - ONT
1 stop5h 28mUnited Airlines
Deal found 7/28$330

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Kansas City 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 julio 28, 2025.
Use the filters below to find and compare flights from Ontario to Kansas City that are best for you.

Fly from

Ontario

Fly to

Kansas City

Route

Depart

Return

Price

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

jue. 9/4

3:06 pm-11:59 pm

1 stop6h 53m

Kansas City

mar. 9/9

7:00 am-2:12 pm

1 stop9h 12m

$204

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mar. 8/12

12:59 am-6:23 pm

1 stop15h 24m

Kansas City

vie. 8/15

8:01 pm-11:50 pm

1 stop5h 49m

$215

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mié. 9/3

6:05 am-1:18 pm

1 stop5h 13m

Kansas City

sáb. 9/6

5:45 am-8:55 am

1 stop5h 10m

$257

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mar. 9/30

12:35 pm-7:50 pm

1 stop5h 15m

Kansas City

mar. 10/7

4:20 pm-8:25 pm

1 stop6h 05m

$292

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

sáb. 10/18

7:10 am-4:22 pm

1 stop7h 12m

Kansas City

dom. 10/19

7:51 pm-11:50 pm

1 stop5h 59m

$312

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

mié. 10/8

1:00 pm-10:50 pm

2 stops7h 50m

Kansas City

sáb. 10/11

5:50 am-9:29 am

1 stop5h 39m

$313

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

sáb. 9/27

7:10 am-4:01 pm

1 stop6h 51m

Kansas City

mar. 9/30

7:00 am-2:12 pm

1 stop9h 12m

$318

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

dom. 8/24

6:04 am-2:13 pm

1 stop6h 09m

Kansas City

sáb. 8/30

5:15 pm-8:43 pm

1 stop5h 28m

$330

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

dom. 10/19

12:59 am-7:02 pm

1 stop16h 03m

$81

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

jue. 8/21

3:04 pm-11:59 pm

1 stop6h 55m

$102

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 15 results
1
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Best time to book a flight from Ontario to Kansas City

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Kansas City. Price data was last updated on July 25, 2025.

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Kansas City. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $298). Flying from Ontario to Kansas City in June is currently the most expensive (average of $352). 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 ONT to MCI?

Find hourly flight availability from Ontario to Kansas City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 28, 2025.

It’s optimal to fly from Ontario to Kansas City in the evening. By choosing this option you can save up to 40% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Ontario to Kansas City?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Kansas City. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Kansas City flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Kansas City

Get insights into the airlines that provide service to Kansas City. 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 Kansas City. Reviews last updated julio 28, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Ontario to Kansas City have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

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

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

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
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

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
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

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
2,604 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

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
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

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 Ontario to Kansas City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Our cheapest airline available from Ontario to Kansas City is Alaska Airlines. Our recent data shows that you can find tickets from as low as $204 on this airline. Additional options worth looking into are Frontier and Delta, starting at $215 and $257 round-trip. Alaska Airlines is priced at 47% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $81. Alaska Airlines flights start at $102 while deals on Delta start at $129 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Kansas City (average of $298). Flying from Ontario to Kansas City in June is currently the most expensive (average of $352). 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

Traveling to a place near Kansas City?

Book flights to Kansas City if you plan to visit one of these locations
Shawnee
Liberty
Lenexa
Lee's Summit
Belton
Overland Park
North Kansas City
Kansas City
Lansing
Lawrence
Olathe

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Top 5 airlines flying from Ontario to Kansas City

Discover the top 5 airlines that operate flights from Ontario to Kansas City. 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 julio 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$224FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$278Average$499FlexibilityNo cancel feeOn-time69%
DeltaCheapest$284Average$363FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$314Average$406FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$318Average$448FlexibilityNo cancel feeOn-time63%

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