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$115+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MCI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Kansas City are usually found in September or August, 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 June 12, 2025.

Round-trip from

$248
(Frontier)

One-way from

$115
(FlightHub)

Popular in

May

Cheapest in

September

Average price

$472
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. 12% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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 8/2712:59 amONT - MCI
1 stop10h 34mFrontier
Sun 8/312:18 pmMCI - ONT
1 stop11h 32mFrontier
Deal found 6/11$248
This Hawaiian Airlines deal was found by Cheapflights users on 6/11. 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 8/227:10 amONT - MCI
1 stop6h 51mHawaiian Airlines
Sun 8/244:55 pmMCI - ONT
1 stop8h 58mHawaiian Airlines
Deal found 6/11$288
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 10/67:10 amONT - MCI
1 stop7h 12mAlaska Airlines
Fri 10/175:57 pmMCI - ONT
1 stop7h 52mAlaska Airlines
Deal found 6/11$289
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 10/256:47 amONT - MCI
2 stops7h 13mAmerican Airlines
Tue 10/286:12 pmMCI - ONT
1 stop5h 48mAmerican Airlines
Deal found 6/11$294
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/121:19 pmONT - MCI
2 stops8h 12mUnited Airlines
Fri 8/156:00 amMCI - ONT
2 stops8h 14mUnited Airlines
Deal found 6/10$299
This Southwest deal was found by Cheapflights users on 6/10. 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.
Sat 10/187:00 amONT - MCI
1 stop5h 30mSouthwest
Sun 10/199:30 amMCI - ONT
1 stop5h 35mSouthwest
Deal found 6/10$328
This Delta deal was found by Cheapflights users on 6/11. 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 7/41:15 pmONT - MCI
1 stop5h 52mDelta
Wed 7/95:45 amMCI - ONT
1 stop5h 02mDelta
Deal found 6/11$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 June 12, 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

Wed 8/27

12:59 am-1:33 pm

1 stop10h 34m

Kansas City

Sun 8/31

2:18 pm-11:50 pm

1 stop11h 32m

$248

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Fri 8/8

12:00 pm-11:35 pm

1 stop9h 35m

Kansas City

Thu 8/14

6:45 am-1:26 pm

1 stop8h 41m

$288

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Mon 10/6

7:10 am-4:22 pm

1 stop7h 12m

Kansas City

Thu 10/16

7:00 am-12:37 pm

1 stop7h 37m

$289

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Sat 10/25

1:26 pm-10:24 pm

2 stops6h 58m

Kansas City

Tue 10/28

12:09 pm-5:45 pm

1 stop7h 36m

$294

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Tue 8/12

1:19 pm-11:31 pm

2 stops8h 12m

Kansas City

Fri 8/15

6:00 am-12:14 pm

2 stops8h 14m

$299

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Sat 10/18

7:00 am-2:30 pm

1 stop5h 30m

Kansas City

Sun 10/19

9:30 am-1:05 pm

1 stop5h 35m

$328

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Fri 7/4

1:15 pm-9:07 pm

1 stop5h 52m

Kansas City

Tue 7/8

5:45 am-8:47 am

1 stop5h 02m

$330

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Sun 8/17

12:59 am-7:04 pm

1 stop16h 05m

$115

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 9/10

11:39 am-9:12 pm

1 stop7h 33m

$144

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Fri 9/19

5:05 pm-12:21 am

1 stop5h 16m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 14 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 June 9, 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 June 12, 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.

Rainfall in Kansas City by month

Plan your trip to Kansas City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kansas City ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Kansas City when rainfall is around 1.1 in.

Temperature in Kansas City by month

Plan your trip to Kansas City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kansas City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 June 12, 2025.
To help decide which airline to fly from Ontario to Kansas City, see what other customers have to say about Alaska Airlines, Southwest and Delta. 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Entertainment

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

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 Frontier. Our recent data shows that you can find tickets from as low as $248 on this airline. Additional options worth looking into are Hawaiian Airlines and Alaska Airlines, starting at $288 and $289 round-trip. Frontier is priced at 35% 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 $115. Hawaiian Airlines flights start at $144 while deals on Delta start at $145 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 Ontario?

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

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Top 6 airlines flying from Ontario to Kansas City

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$72Average$176FlexibilityNo cancel feeOn-time65%
FrontierCheapest$115Average$240FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$263Average$490FlexibilityNo cancel feeOn-time69%
DeltaCheapest$284Average$351FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$318Average$422FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$322Average$449FlexibilityNo cancel feeOn-time63%

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