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$59+ Cheap flights from Kansas City to Ontario (MCI - 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — ONT
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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The best prices from Kansas City to Ontario are usually found in May or September, booked 23 days in advance, depart on a Sunday or Wednesday and return on a Friday

Cheap flight deals from Kansas City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) 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 October 31, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

March

Cheapest in

May

Round-trip from

$108
(Frontier)

One-way from

$59
(CheapOair)
Provider with most accurate pricing for Kansas City-Ontario flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Ontario flights.
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High demand for flights, 32% potential price rise
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Best time to find cheap flights, 36% potential price drop
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From Kansas City to Ontario
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One-way flight from Kansas City to Ontario
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Find flight deals from Kansas City to Ontario

Cheapest flights from Kansas City to Ontario
Explore the most affordable flight options available from Kansas City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This Frontier deal was found by Cheapflights users on 10/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/168:39 pmMCI - ONT
1 stop5h 25mFrontier
Mon 11/185:45 amONT - MCI
1 stop11h 41mFrontier
Deal found 10/31$108
This Alaska Airlines deal was found by Cheapflights users on 10/30. 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.
Sat 12/147:00 amMCI - ONT
1 stop16h 04mAlaska Airlines
Sun 12/156:00 amONT - MCI
1 stop15h 59mAlaska Airlines
Deal found 10/30$242
This Trip.com deal was found by Cheapflights users on 10/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/710:43 pmMCI - ONT
1 stop12h 26mMultiple Airlines
Mon 11/116:13 pmONT - MCI
1 stop20h 55mMultiple Airlines
Deal found 10/30$244
This Delta deal was found by Cheapflights users on 10/31. 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 12/122:30 pmMCI - ONT
2 stops10h 12mDelta
Tue 12/1710:00 pmONT - MCI
1 stop9h 22mDelta
Deal found 10/31$290
This United Airlines deal was found by Cheapflights users on 10/31. 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 12/183:02 pmMCI - ONT
1 stop8h 40mUnited Airlines
Wed 12/255:05 amONT - MCI
1 stop5h 39mUnited Airlines
Deal found 10/31$326
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Tue 11/265:45 amMCI - ONT
1 stop5h 30mAmerican Airlines
Mon 12/211:59 pmONT - MCI
1 stop7h 47mAmerican Airlines
Deal found 10/31$371
This Southwest deal was found by Cheapflights users on 10/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/274:15 pmMCI - ONT
2 stops6h 50mSouthwest
Fri 11/294:05 pmONT - MCI
1 stop4h 40mSouthwest
Deal found 10/30$402

Find flights from Kansas City to Ontario within your budget

Customize your flight search to find flights from Kansas 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 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Tue 11/12

6:10 pm-12:04 am

1 stop7h 54m

$59

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Thu 1/30

2:59 pm-10:39 pm

1 stop9h 40m

$121

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Sat 1/11

6:40 am-2:30 pm

1 stop9h 50m

$122

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Tue 12/17

9:40 am-1:53 pm

1 stop6h 13m

$163

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Mon 11/11

5:55 am-6:05 pm

1 stop14h 10m

$188

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Fri 11/29

7:30 am-1:00 pm

1 stop7h 30m

$208

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Sat 11/16

8:39 pm-12:04 am

1 stop5h 25m

Ontario

Mon 11/18

5:45 am-7:26 pm

1 stop11h 41m

$108

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Sat 12/14

7:00 am-9:04 pm

1 stop16h 04m

Ontario

Sun 12/15

6:00 am-11:59 pm

1 stop15h 59m

$242

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Tue 11/26

3:49 pm-9:04 am

1 stop19h 15m

Ontario

Tue 12/3

6:30 am-3:47 pm

2 stops31h 17m

$279

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Thu 12/12

2:30 pm-10:42 pm

2 stops10h 12m

Ontario

Tue 12/17

10:00 pm-9:22 am

1 stop9h 22m

$290

Flights are sorted by cheapest first

Deals found on 10/30

Showing 1-10 of 13 results
1
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Compare providers for flights from Kansas 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 Kansas City to Ontario in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
PricelinePrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
MytripPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
FlightnetworkPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*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 Kansas City-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kansas City-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kansas 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 Kansas 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 Kansas City to Ontario

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

Travel insights for flights from Kansas City to Ontario

Get recent, data-driven insights about flights from Kansas City to Ontario including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Kansas City to Ontario. Price data was last updated on October 25, 2024.

The price you pay for your flight from Kansas City to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 23 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Find deals

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

Currently, September is the cheapest month in which you can book a flight from Kansas City to Ontario (average of $236). Flying from Kansas City to Ontario in December is currently the most expensive (average of $288). 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 MCI to ONT?

Find hourly flight availability from Kansas City 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 October 31, 2024.

A simple way to save on the total cost of your ticket is to fly from Kansas City to Ontario in the evening. If you’re flexible enough to do this you can expect to save up to 54% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Kansas City to Ontario. Price data was last updated on October 27, 2024.

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

Find deals

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August 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 December, when temperatures are typically at their lowest (around 53.6 F).

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 October 31, 2024.
Peruse reviews from past customers who have flown with Frontier, Alaska Airlines and United Airlines from Kansas City to Ontario to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,116 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
5,116 reviews
Southwest
8.1
Very good
5,116 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,420 reviews
Southwest
8.1
Very good
5,116 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,835 reviews
Southwest
8.1
Very good
5,116 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,240 reviews
Southwest
8.1
Very good
5,116 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,116 reviews

Boarding

8.3

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

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

  • Can I find flights from Kansas City to Ontario for under $200 on Cheapflights?

    Yes, there are multiple flights from Kansas City to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $108, but on average you can expect to pay $288.

  • Are there last-minute flights available from Kansas City to Ontario for under $200?

    There are currently 5+ open flights from Kansas City to Ontario within the next 7 days for less than $200.

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

    Flying on Frontier is currently your cheapest option to Ontario, with prices starting at $108. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and Delta, with the lowest prices starting at $242 and $290, respectively. You may be able to fly from Kansas City to Ontario for 66% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $59 on Frontier. Other airlines that offer cheap prices include Alaska Airlines from $121 and Delta from $122 one-way.

  • What does MCI to ONT mean?

    Great question - MCI to ONT just means Kansas City Airport to Ontario Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Kansas City to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Kansas City to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Kansas City to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Kansas City to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kansas 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.

  • Can I find deals for flights from Kansas City to Ontario that allow pets onboard?

    Many airlines flying from Kansas City to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Kansas City to Ontario?

    Yes, you can often find last-minute deals on Kansas City to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Kansas City to Ontario flight deals updated?

    The Kansas City to Ontario flight deals you see on this page were last updated on 10/31.

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

    Currently, September is the cheapest month in which you can book a flight from Kansas City to Ontario (average of $236). Flying from Kansas City to Ontario in December is currently the most expensive (average of $288). 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 6 airlines flying from Kansas City to Ontario

Discover the top 6 airlines that operate flights from Kansas 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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$98Average$245FlexibilityNo cancel feeOn-time65%
FrontierCheapest$114Average$179FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$118Average$419FlexibilityNo cancel feeOn-time69%
DeltaCheapest$204Average$342FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$287Average$439FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$304Average$371FlexibilityNo cancel feeOn-time63%
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