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 $201. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $299 and $316, respectively. You may be able to fly from Kansas City to Ontario for 45% 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 $106 on Frontier. Other airlines that offer cheap prices include Delta from $168 and American Airlines from $170 one-way.

What are the most popular airlines that fly from Kansas City to Ontario?

When booking a flight from Kansas City to Ontario, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

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

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 23% on the overall cost on flights from Kansas City to Ontario.

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

To save on the cost of your flight from Kansas City to Ontario, book at least 38 days before your planned departure. Booking around this time can save you about 88% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $230 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $400.

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

September can be a great time to fly to Ontario from Kansas City with a flight ticket averaging about $274. Cheapflights users have found deals in the month of September for as cheap as $63. The most expensive prices can be found in the month of March.

Most accurate provider : When it comes to deals on Kansas City-Ontario flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Kansas City-Ontario flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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.

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.

$106+ Flights from Kansas City to Ontario - Compare & Save Big

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Find cheap flights from Kansas City 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.

Cheapflights Tip: The best prices from Kansas City to Ontario are usually found in September or May, booked 23 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Kansas City to Ontario

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$201 (CheapOair)
One-way from	$106 (Mytrip)
Popular in	January
Cheapest in	September
Average price	$389

Provider with most accurate pricing for Kansas City-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for Kansas City-Ontario flights.

Search Deals

From Kansas City to Ontario

Search Deals

One-way flight from Kansas City to Ontario

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($49 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 abril 29, 2025.

mié. 6/47:56 pmMCI - ONT

1 stop15h 16mFrontier

sáb. 6/75:21 pmONT - MCI

1 stop16h 14mFrontier

Deal found 4/27

$201

mar. 5/276:05 pmMCI - ONT

1 stop7h 37mDelta

mar. 6/36:00 amONT - MCI

1 stop5h 17mDelta

Deal found 4/27

$299

mié. 5/215:15 amMCI - ONT

2 stops8h 35mAmerican Airlines

mié. 5/2811:59 pmONT - MCI

1 stop8h 24mAmerican Airlines

Deal found 4/27

$304

jue. 9/44:55 pmMCI - ONT

1 stop8h 58mHawaiian Airlines

dom. 9/73:00 pmONT - MCI

1 stop6h 59mHawaiian Airlines

Deal found 4/27

$316

sáb. 6/281:30 pmMCI - ONT

2 stops6h 15mSouthwest

vie. 7/42:50 pmONT - MCI

1 stop5h 20mSouthwest

Deal found 4/27

$323

mié. 5/282:56 pmMCI - ONT

1 stop8h 14mUnited Airlines

mié. 6/45:10 amONT - MCI

1 stop5h 28mUnited Airlines

Deal found 4/28

$379

lun. 5/123:59 pmMCI - ONT

1 stop9h 59mMultiple Airlines

jue. 5/1512:16 pmONT - MCI

1 stop5h 35mMultiple Airlines

Deal found 4/28

$438

jue. 9/114:55 pmMCI - ONT

1 stop8h 58mAlaska Airlines

lun. 9/157:10 amONT - MCI

2 stops14h 49mAlaska Airlines

Deal found 4/27

$439

Best flights from Kansas City to Ontario
Discover carefully curated flight deals from Kansas City to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated abril 29, 2025.

mié. 6/47:56 pmMCI - ONT

1 stop15h 16mFrontier

sáb. 6/75:21 pmONT - MCI

1 stop16h 14mFrontier

Deal found 4/27

$201

mar. 5/276:05 pmMCI - ONT

1 stop7h 37mDelta

mar. 6/36:00 amONT - MCI

1 stop5h 17mDelta

Deal found 4/27

$299

jue. 8/284:55 pmMCI - ONT

1 stop8h 58mAlaska Airlines

mar. 9/167:10 amONT - MCI

1 stop6h 51mAlaska Airlines

Deal found 4/28

$316

mar. 5/2011:13 amMCI - ONT

2 stops9h 10mAmerican Airlines

dom. 5/256:15 amONT - MCI

1 stop8h 11mAmerican Airlines

Deal found 4/28

$323

vie. 10/245:15 pmMCI - ONT

1 stop5h 18mUnited Airlines

mar. 10/2810:40 amONT - MCI

2 stops10h 48mUnited Airlines

Deal found 4/28

$358

jue. 5/225:25 amMCI - ONT

1 stop7h 40mSouthwest

lun. 5/262:55 pmONT - MCI

1 stop7h 35mSouthwest

Deal found 4/28

$375

dom. 5/113:59 pmMCI - ONT

1 stop9h 59mHawaiian Airlines

sáb. 5/2411:51 amONT - MCI

1 stop10h 08mHawaiian Airlines

Deal found 4/28

$397

lun. 5/123:59 pmMCI - ONT

1 stop9h 59mMultiple Airlines

jue. 5/1512:16 pmONT - MCI

1 stop5h 35mMultiple Airlines

Deal found 4/28

$438

Last-minute flights from Kansas City to Ontario
Discover last-minute flight deals from Kansas City to Ontario. Data last updated abril 29, 2025 and is based on user searches.

vie. 5/23:59 pmMCI - ONT

1 stop9h 59mHawaiian Airlines

dom. 5/411:46 amONT - MCI

1 stop10h 13mHawaiian Airlines

Deal found 4/28

$882

dom. 5/42:59 pmMCI - ONT

1 stop11h 00mAlaska Airlines

mar. 5/207:30 amONT - MCI

1 stop7h 10mAlaska Airlines

Deal found 4/28

$577

dom. 5/49:36 amMCI - ONT

2 stops8h 23mAmerican Airlines

mar. 5/2010:40 pmONT - MCI

1 stop10h 42mAmerican Airlines

Deal found 4/28

$583

mar. 5/62:59 pmMCI - ONT

1 stop7h 30mMultiple Airlines

vie. 5/912:16 pmONT - MCI

1 stop5h 35mMultiple Airlines

Deal found 4/28

$449

jue. 5/88:51 pmMCI - ONT

1 stop16h 24mFrontier

dom. 5/1112:59 amONT - MCI

1 stop16h 52mFrontier

Deal found 4/28

$221

jue. 5/89:03 amMCI - ONT

1 stop5h 35mUnited Airlines

lun. 5/121:45 pmONT - MCI

2 stops7h 59mUnited Airlines

Deal found 4/28

$392

lun. 5/123:59 pmMCI - ONT

1 stop19h 17mAlaska Airlines

mié. 8/207:10 amONT - MCI

1 stop6h 51mAlaska Airlines

Deal found 4/28

$435

lun. 5/123:59 pmMCI - ONT

1 stop9h 59mMultiple Airlines

jue. 5/1512:16 pmONT - MCI

1 stop5h 35mMultiple Airlines

Deal found 4/28

$438

mar. 5/2011:13 amMCI - ONT

2 stops9h 10mAmerican Airlines

dom. 5/256:15 amONT - MCI

1 stop8h 11mAmerican Airlines

Deal found 4/28

$323

mar. 5/203:10 pmMCI - ONT

1 stop8h 50mUnited Airlines

mié. 5/215:05 amONT - MCI

1 stop5h 47mUnited Airlines

Deal found 4/28

$379

jue. 5/225:25 amMCI - ONT

1 stop7h 40mSouthwest

lun. 5/262:55 pmONT - MCI

1 stop7h 35mSouthwest

Deal found 4/28

$375

mar. 5/276:05 pmMCI - ONT

1 stop7h 37mDelta

mar. 6/36:00 amONT - MCI

1 stop5h 17mDelta

Deal found 4/27

$299

One-way flights from Kansas City to Ontario
Search for one-way flight options from Kansas City to Ontario. Find affordable one-way fares based on user searches. Data last updated abril 29, 2025.

mié. 5/287:39 pmMCI - ONT

1 stop15h 36mFrontier

Deal found 4/27

$106

sáb. 6/76:45 amMCI - ONT

1 stop7h 30mDelta

Deal found 4/28

$168

sáb. 7/127:49 pmMCI - ONT

1 stop6h 05mAmerican Airlines

Deal found 4/28

$170

mar. 6/246:45 amMCI - ONT

1 stop10h 01mHawaiian Airlines

Deal found 4/27

$189

mar. 6/38:55 amMCI - ONT

1 stop5h 36mUnited Airlines

Deal found 4/27

$190

jue. 6/57:01 pmMCI - ONT

1 stop17h 56mAlaska Airlines

Deal found 4/27

$267

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kansas City to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

mié. 6/4

7:56 pm-9:12 am

1 stop15h 16m

Ontario

sáb. 6/7

5:21 pm-11:35 am

1 stop16h 14m

$201

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

mar. 5/27

6:05 pm-11:42 pm

1 stop7h 37m

Ontario

mié. 6/4

4:57 pm-12:20 am

1 stop5h 23m

$299

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

mié. 5/21

5:15 am-11:50 am

2 stops8h 35m

Ontario

mié. 5/28

11:59 pm-10:23 am

1 stop8h 24m

$304

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

sáb. 6/28

1:30 pm-5:45 pm

2 stops6h 15m

Ontario

vie. 7/4

2:50 pm-10:10 pm

1 stop5h 20m

$323

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

mié. 5/28

2:56 pm-9:10 pm

1 stop8h 14m

Ontario

mié. 6/4

5:10 am-12:38 pm

1 stop5h 28m

$379

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

lun. 5/12

3:59 pm-11:58 pm

1 stop9h 59m

Ontario

jue. 5/15

12:16 pm-7:51 pm

1 stop5h 35m

$438

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

mar. 5/20

7:00 am-3:50 pm

1 stop10h 50m

Ontario

mié. 5/21

11:51 am-11:38 pm

1 stop9h 47m

$440

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

mié. 5/28

7:39 pm-9:15 am

1 stop15h 36m

$106

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

sáb. 6/7

6:45 am-12:15 pm

1 stop7h 30m

$168

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

sáb. 7/12

7:49 pm-11:54 pm

1 stop6h 05m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 13 results

Compare providers for flights from Kansas City to Ontario

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy2 stars	Trust Score*3 stars
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
Flightnetwork	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*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 Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on Kansas City-Ontario flight deals on Cheapflights vs. Mytrip >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 Mytrip the most. Mytrip 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.

Cheapflights Insights

Everything you need to know about your flight from Kansas City to Ontario

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

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.

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

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

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 53% on your trip compared to booking a flight in the morning.

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

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. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ontario 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

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

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta 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.

Alaska Airlines

8.0

Very good

9,949 reviews

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

9,949 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

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

4,292 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

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

7,929 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

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

2,402 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

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

8,696 reviews

Alaska Airlines

8.0

Very good

9,949 reviews

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

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 $201. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $299 and $316, respectively. You may be able to fly from Kansas City to Ontario for 45% 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 $106 on Frontier. Other airlines that offer cheap prices include Delta from $168 and American Airlines from $170 one-way.
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.
What is the cheapest month to book a flight from Kansas City to Ontario?
Currently, August is the cheapest month in which you can book a flight from Kansas City to Ontario (average of $246). Flying from Kansas City 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

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Other flights to Ontario

Top 6 airlines flying from Kansas City to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$98	Average$180	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$114	Average$184	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$248	Average$360	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$276	Average$386	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$315	Average$432	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$326	Average$415	FlexibilityNo cancel fee	On-time63%

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$106+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kansas City to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Kansas City to Ontario are usually found in September or May, booked 23 days in advance, depart on a Wednesday or Thursday and return on a Friday

Cheap flight deals from Kansas City to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Kansas City to Ontario

Cheapest flights from Kansas City to OntarioExplore 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 abril 29, 2025.

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 abril 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kansas City to Ontario that are best for you.

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 April.

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.

Cheapflights Insights

Everything you need to know about your flight from Kansas City to Ontario

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 April 25, 2025.

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

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 abril 29, 2025.

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 December 16, 2024.

Rainfall in Ontario by month

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

Temperature in Ontario by month

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

Reviews of airlines servicing Ontario

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta 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.

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.

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

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

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

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

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

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

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 City to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Kansas City to Ontario

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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 abril 29, 2025.