How popular is this Kansas City to Ontario flight route?

Flights from Kansas City to Ontario have been viewed 14 times in the past calendar month.

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 $207. Another option worth looking into is United Airlines, starting at $365 round trip. You may be able to fly from Kansas City to Ontario for 50% 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 $104 on Frontier. Other airlines that offer cheap prices include United Airlines from $173 and Delta from $203 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.

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 Multiple Airlines for just $193, but on average you can expect to pay $258.

Are there last-minute flights available from Kansas City to Ontario for under $300?

There are currently 20+ open flights from Kansas City to Ontario within the next 7 days for less than $300.

Which airlines flying from Kansas City to Ontario have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Kansas City to Ontario that may be offering flexible cancellation policies are American Airlines, Frontier, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

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 83% on the overall cost on flights from Kansas City to Ontario.

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

February can be a great time to fly to Ontario from Kansas City with a flight ticket averaging about $291. Cheapflights users have found deals in the month of February for as cheap as $81. The most expensive prices can be found in the month of April.

When is the cheapest time to fly from Kansas City to Ontario (MCI - 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 29% on your trip compared to booking a flight at noon.

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!

Flights from Kansas City, MO to Ontario, CA from $104

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MCI — ONT

Jun 6 — Jun 131

Round-tripOne-way

1 adult, Economy

We work with more than 300 partners to bring you better travel deals

The best prices from Kansas City to Ontario are usually found in September or February, booked 58 days in advance, depart on a Wednesday or Friday and return on a Friday

How to find the cheapest flight from Kansas City (MCI) to Ontario (ONT)

Popular in	June
Cheapest in	September
Round-trip from	$217
One-way from	$177

High demand for flights, 36% potential price rise

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Best time to find cheap flights, 51% 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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MCI - LAX Price	$217 - $502
LAX Temperature	57.2 - 73.4 °F
LAX Rainfall	0 - 3.4 inches

MCI - LAX

Price

$217 - $502

LAX

Temperature

57.2 - 73.4 °F

LAX

Rainfall

0 - 3.4 inches

Cheap flights from Kansas City to Ontario in June, July 2023

The lowest fares we've come across on flights traveling from Kansas City to Ontario in June and July 2023. Check back in a little while for more flight options.

Jun 16 - Jun 21

MCI

Kansas City

ONT

Ontario

1 stop

21h 54m

ONT

Ontario

MCI

Kansas City

1 stop

21h 05m

$193

Multiple Airlines

Deal found 5/30

Jun 15 - Jun 20

MCI

Kansas City

ONT

Ontario

1 stop

21h 51m

ONT

Ontario

MCI

Kansas City

1 stop

18h 28m

$216

Multiple Airlines

Deal found 5/30

Jun 20 - Jun 22

MCI

Kansas City

ONT

Ontario

1 stop

6h 29m

ONT

Ontario

MCI

Kansas City

1 stop

21h 31m

$247

Multiple Airlines

Deal found 6/1

Jul 11 - Jul 14

MCI

Kansas City

ONT

Ontario

1 stop

6h 05m

ONT

Ontario

MCI

Kansas City

1 stop

20h 39m

$266

Multiple Airlines

Deal found 6/1

Jun 16 - Jun 21

MCI

Kansas City

ONT

Ontario

1 stop

21h 54m

ONT

Ontario

MCI

Kansas City

2 stops

14h 45m

$277

Multiple Airlines

Deal found 5/30

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

1 stop

18h 32m

ONT

Ontario

MCI

Kansas City

1 stop

24h 02m

$279

Multiple Airlines

Deal found 5/30

Jun 20 - Jun 22

MCI

Kansas City

ONT

Ontario

2 stops

21h 24m

ONT

Ontario

MCI

Kansas City

1 stop

21h 31m

$285

Multiple Airlines

Deal found 6/1

Jun 15 - Jun 20

MCI

Kansas City

ONT

Ontario

2 stops

21h 21m

ONT

Ontario

MCI

Kansas City

1 stop

18h 28m

$290

Multiple Airlines

Deal found 5/30

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

1 stop

18h 32m

ONT

Ontario

MCI

Kansas City

2 stops

14h 47m

$297

Multiple Airlines

Deal found 5/30

Kansas City to Ontario 2023 flight deals

The lowest fares we've come across on flights traveling from Kansas City to Ontario in June and July 2023. Check back in a little while for more flight options.

Jun 16 - Jun 21

MCI

Kansas City

ONT

Ontario

1 stop

21h 54m

ONT

Ontario

MCI

Kansas City

1 stop

21h 05m

$193

Multiple Airlines

Deal found 5/30

Sep 3 - Sep 9

MCI

Kansas City

ONT

Ontario

1 stop

6h 48m

ONT

Ontario

MCI

Kansas City

1 stop

16h 06m

$207

Frontier

Deal found 5/31

Oct 25 - Oct 28

MCI

Kansas City

ONT

Ontario

1 stop

19h 54m

ONT

Ontario

MCI

Kansas City

1 stop

16h 09m

$208

Frontier

Deal found 6/1

Jun 15 - Jun 20

MCI

Kansas City

ONT

Ontario

1 stop

21h 51m

ONT

Ontario

MCI

Kansas City

1 stop

18h 28m

$216

Multiple Airlines

Deal found 5/30

Oct 5 - Oct 7

MCI

Kansas City

ONT

Ontario

1 stop

7h 01m

ONT

Ontario

MCI

Kansas City

1 stop

16h 09m

$228

Frontier

Deal found 5/31

Aug 17 - Aug 19

MCI

Kansas City

ONT

Ontario

1 stop

7h 20m

ONT

Ontario

MCI

Kansas City

1 stop

18h 10m

$231

Frontier

Deal found 5/31

Sep 5 - Sep 9

MCI

Kansas City

ONT

Ontario

1 stop

6h 22m

ONT

Ontario

MCI

Kansas City

1 stop

16h 06m

$238

Frontier

Deal found 5/31

Jun 20 - Jun 22

MCI

Kansas City

ONT

Ontario

1 stop

6h 29m

ONT

Ontario

MCI

Kansas City

1 stop

21h 31m

$247

Multiple Airlines

Deal found 6/1

Sep 14 - Sep 18

MCI

Kansas City

ONT

Ontario

1 stop

19h 51m

ONT

Ontario

MCI

Kansas City

1 stop

16h 06m

$248

Frontier

Deal found 6/1

Cheap United Airlines flights from Kansas City to Ontario

Take a peek at the cheapest United Airlines flights we've detected traveling from Kansas City to Ontario. Make sure to double check the flight details before booking.

Jun 28 - Jul 3

MCI

Kansas City

ONT

Ontario

1 stop

6h 00m

ONT

Ontario

MCI

Kansas City

1 stop

8h 44m

$365

United Airlines

Deal found 5/30

Jun 7 - Jun 14

MCI

Kansas City

ONT

Ontario

1 stop

8h 41m

ONT

Ontario

MCI

Kansas City

1 stop

7h 55m

$552

United Airlines

Deal found 5/31

Jun 7 - Jun 9

MCI

Kansas City

ONT

Ontario

1 stop

8h 41m

ONT

Ontario

MCI

Kansas City

1 stop

5h 50m

$601

United Airlines

Deal found 5/31

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

1 stop

5h 12m

ONT

Ontario

MCI

Kansas City

1 stop

7h 55m

$677

United Airlines

Deal found 5/31

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

2 stops

12h 21m

ONT

Ontario

MCI

Kansas City

1 stop

5h 05m

$682

United Airlines

Deal found 5/31

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

3 stops

12h 21m

ONT

Ontario

MCI

Kansas City

1 stop

7h 55m

$686

United Airlines

Deal found 5/30

Jun 7 - Jun 9

MCI

Kansas City

ONT

Ontario

3 stops

19h 56m

ONT

Ontario

MCI

Kansas City

1 stop

5h 50m

$920

United Airlines

Deal found 5/31

Cheap Frontier flights from Kansas City to Ontario

Some of the best deals we've found on Frontier flights traveling from Kansas City to Ontario. Ensure the flight price, dates, time, and airline match your criteria before you book.

Sep 3 - Sep 9

MCI

Kansas City

ONT

Ontario

1 stop

6h 48m

ONT

Ontario

MCI

Kansas City

1 stop

16h 06m

$207

Frontier

Deal found 5/31

Oct 25 - Oct 28

MCI

Kansas City

ONT

Ontario

1 stop

19h 54m

ONT

Ontario

MCI

Kansas City

1 stop

16h 09m

$208

Frontier

Deal found 6/1

Oct 5 - Oct 7

MCI

Kansas City

ONT

Ontario

1 stop

7h 01m

ONT

Ontario

MCI

Kansas City

1 stop

16h 09m

$228

Frontier

Deal found 5/31

Aug 17 - Aug 19

MCI

Kansas City

ONT

Ontario

1 stop

7h 20m

ONT

Ontario

MCI

Kansas City

1 stop

18h 10m

$231

Frontier

Deal found 5/31

Sep 5 - Sep 9

MCI

Kansas City

ONT

Ontario

1 stop

6h 22m

ONT

Ontario

MCI

Kansas City

1 stop

16h 06m

$238

Frontier

Deal found 5/31

Sep 14 - Sep 18

MCI

Kansas City

ONT

Ontario

1 stop

19h 51m

ONT

Ontario

MCI

Kansas City

1 stop

16h 06m

$248

Frontier

Deal found 6/1

Aug 17 - Aug 19

MCI

Kansas City

ONT

Ontario

1 stop

7h 20m

ONT

Ontario

MCI

Kansas City

2 stops

14h 46m

$264

Frontier

Deal found 5/31

Nov 10 - Nov 13

MCI

Kansas City

ONT

Ontario

1 stop

7h 01m

ONT

Ontario

MCI

Kansas City

1 stop

16h 09m

$268

Frontier

Deal found 5/31

Sep 3 - Sep 9

MCI

Kansas City

ONT

Ontario

1 stop

6h 48m

ONT

Ontario

MCI

Kansas City

2 stops

14h 27m

$287

Frontier

Deal found 5/31

Last minute flights from Kansas City to Ontario

Consider one of these great deals we found on last-minute flights from Kansas City to Ontario. It's wise to confirm all flight details are correct before booking.

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

1 stop

18h 32m

ONT

Ontario

MCI

Kansas City

1 stop

24h 02m

$279

Multiple Airlines

Deal found 5/30

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

1 stop

18h 32m

ONT

Ontario

MCI

Kansas City

2 stops

14h 47m

$297

Multiple Airlines

Deal found 5/30

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

2 stops

18h 06m

ONT

Ontario

MCI

Kansas City

2 stops

14h 47m

$383

Frontier

Deal found 5/30

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

2 stops

21h 57m

ONT

Ontario

MCI

Kansas City

3 stops

50h 44m

$385

Multiple Airlines

Deal found 6/1

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

2 stops

21h 57m

ONT

Ontario

MCI

Kansas City

1 stop

25h 12m

$437

Frontier

Deal found 6/1

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

2 stops

21h 57m

ONT

Ontario

MCI

Kansas City

2 stops

14h 47m

$460

Frontier

Deal found 6/1

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

2 stops

18h 06m

ONT

Ontario

MCI

Kansas City

3 stops

41h 20m

$482

Multiple Airlines

Deal found 5/30

Jun 6 - Jun 10

MCI

Kansas City

ONT

Ontario

1 stop

18h 32m

ONT

Ontario

MCI

Kansas City

1 stop

25h 12m

$529

Multiple Airlines

Deal found 6/1

Jun 7 - Jun 14

MCI

Kansas City

ONT

Ontario

1 stop

8h 41m

ONT

Ontario

MCI

Kansas City

1 stop

7h 55m

$552

United Airlines

Deal found 5/31

One-way flights to Ontario from Kansas City

Take a look at some of the best available options we've come across on one-way flights from Kansas City to Ontario. Users can also find round-trip Kansas City to Ontario flights by using the search form above.

Oct 7

MCI

Kansas City

ONT

Ontario

1 stop

7h 01m

$104

Frontier

Deal found 5/31

Nov 13

MCI

Kansas City

ONT

Ontario

1 stop

7h 01m

$124

Frontier

Deal found 5/31

Jun 15

MCI

Kansas City

ONT

Ontario

1 stop

7h 10m

$134

Frontier

Deal found 5/31

Jun 13

MCI

Kansas City

ONT

Ontario

1 stop

6h 29m

$144

Frontier

Deal found 5/31

Jun 16

MCI

Kansas City

ONT

Ontario

1 stop

5h 41m

$164

Frontier

Deal found 5/30

Oct 31

MCI

Kansas City

ONT

Ontario

2 stops

16h 36m

$173

United Airlines

Deal found 5/31

Jul 9

MCI

Kansas City

ONT

Ontario

1 stop

25h 11m

$177

Multiple Airlines

Deal found 5/31

Jun 27

MCI

Kansas City

ONT

Ontario

1 stop

8h 10m

$203

Delta

Deal found 5/31

Jul 9

MCI

Kansas City

ONT

Ontario

2 stops

17h 02m

$226

Frontier

Deal found 6/1

Find flights from Kansas City to Ontario within your budget

Fly from

Fly to

Budget

$193 - $365

Route

Depart

Return

Price

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Fri 6/16

1 stop21h 54m

Ontario

Wed 6/21

1 stop21h 05m

$193

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Sun 9/3

1 stop6h 48m

Ontario

Sat 9/9

1 stop16h 06m

$207

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Wed 10/25

1 stop19h 54m

Ontario

Sat 10/28

1 stop16h 09m

$208

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Thu 6/15

1 stop21h 51m

Ontario

Tue 6/20

1 stop18h 28m

$216

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Thu 10/5

1 stop7h 01m

Ontario

Sat 10/7

1 stop16h 09m

$228

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Thu 8/17

1 stop7h 20m

Ontario

Sat 8/19

1 stop18h 10m

$231

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Tue 9/5

1 stop6h 22m

Ontario

Sat 9/9

1 stop16h 06m

$238

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Tue 6/20

1 stop6h 29m

Ontario

Thu 6/22

1 stop21h 31m

$247

Pick Dates

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Wed 6/28

1 stop6h 00m

Ontario

Mon 7/3

1 stop8h 44m

$365

Pick Dates

Flights are sorted by cheapest first

Deals found on 5/30

Reviews of Airlines Servicing Ontario

Peruse reviews from past customers who have flown with United Airlines, Frontier and American 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.

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Alaska Airlines

8.0

Very good

1,375 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Delta

8.0

Very good

2,370 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

United Airlines

7.6

Good

1,535 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

American Airlines

7.3

Good

2,149 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Frontier

5.9

Fair

669 reviews

Alaska Airlines

8.0

Very good

1,375 reviews

Check prices

Reviews

1 / 10

People working on plane were terrific My business class seat was very uncomfortable. Blankets and pillows were not available. Food was barely OK

Related info for your journey

Alternative routes for Kansas City to Ontario

Kansas City to Los Angelesfrom $110 pp

Springfield to Los Angelesfrom $223 pp

Kansas City to San Franciscofrom $317 pp

St. Louis to Los Angelesfrom $400 pp

Top 5 airlines flying from Kansas City to Ontario

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
Spirit Airlines	Cheapest$110	Average$224	FlexibilityNo cancel fee	On-time65%	COVID-19 safety	Search Spirit Airlines flights
Frontier	Cheapest$161	Average$287	FlexibilityNo cancel fee	On-time62%	COVID-19 safety	Search Frontier flights
United Airlines	Cheapest$275	Average$562	FlexibilityNo cancel fee	On-time69%	COVID-19 safety	Search United Airlines flights
Delta	Cheapest$277	Average$391	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Delta flights
American Airlines	Cheapest$311	Average$485	FlexibilityNo cancel fee	On-time71%	COVID-19 safety	Search American Airlines flights

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Hourly flight availability from Kansas City to Ontario

100%of flight departures	Early morningMidnight to 6 am
0%of flight departures	Morning6 am to noon
0%of flight departures	AfternoonNoon to 6 pm
0%of flight departures	Evening6 pm to midnight

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Cheap flights from Kansas City to Ontario (MCI - ONT) from $104

This is the cheapest one-way flight price, found on 5/31. Prices may vary by date and flight preferences.

The best prices from Kansas City to Ontario are usually found in September or February, booked 58 days in advance, depart on a Wednesday or Friday and return on a Friday

How to find the cheapest flight from Kansas City (MCI) to Ontario (ONT)

All the information you need to plan the best MCI to ONT flight in 2023: compare Kansas City to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.

Popular in

Cheapest in

Round-trip from

One-way from

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

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

When is the cheapest time to fly from Kansas City to Ontario (MCI - ONT)?

Cheap flights from Kansas City to Ontario in June, July 2023

The best prices found for MCI to ONT flights for June, July

The lowest fares we've come across on flights traveling from Kansas City to Ontario in June and July 2023. Check back in a little while for more flight options.

Kansas City to Ontario 2023 flight deals

Cheap flights to Ontario from Kansas City found for this year

The lowest fares we've come across on flights traveling from Kansas City to Ontario in June and July 2023. Check back in a little while for more flight options.

Cheap United Airlines flights from Kansas City to Ontario

Take a peek at the cheapest United Airlines flights we've detected traveling from Kansas City to Ontario. Make sure to double check the flight details before booking.

Cheap Frontier flights from Kansas City to Ontario

Some of the best deals we've found on Frontier flights traveling from Kansas City to Ontario. Ensure the flight price, dates, time, and airline match your criteria before you book.

Last minute flights from Kansas City to Ontario

Late deals on return flights to Ontario from Kansas City, departing today and this week

Consider one of these great deals we found on last-minute flights from Kansas City to Ontario. It's wise to confirm all flight details are correct before booking.

One-way flights to Ontario from Kansas City

The cheapest one-way flights from Kansas City to Ontario

Take a look at some of the best available options we've come across on one-way flights from Kansas City to Ontario. Users can also find round-trip Kansas City to Ontario flights by using the search form above.

Find flights from Kansas City to Ontario within your budget

Use the slider to find flights from Kansas City to Ontario that fit your budget.

Reviews of Airlines Servicing Ontario

Peruse reviews from past customers who have flown with United Airlines, Frontier and American 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.

Related info for your journey

Useful info, stats and facts about Kansas City to Ontario flights.

Which airlines flying from Kansas City to Ontario have flexible cancellations due to COVID-19?

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

Are there last-minute flights available from Kansas City to Ontario for under $300?

How popular is this Kansas City to Ontario flight route?

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?

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

What does MCI to ONT mean?

Other flights to Ontario

Flights to Ontario from Kansas City

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Alternative routes for Kansas City to Ontario

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

Top 5 airlines flying from Kansas City to Ontario

The chart below displays the airlines Cheapflights users traveling from Kansas City to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2023

Hourly flight availability from Kansas City to Ontario

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