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Cheap flights from Ontario to Kansas City from $69

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Kansas City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 7:33 pmONT  Ontario-MCI Kansas City
11h 33m1 stop Denver Intl
Frontier Logo
8:32 pm - 10:45 amMCI  Kansas City-ONT Ontario
16h 13m1 stop Denver Intl
$168Frontier
Thu, Dec 3 - Mon, Dec 7
Frontier Logo
11:30 am - 7:33 pmONT  Ontario-MCI Kansas City
6h 03m1 stop Denver Intl
Frontier Logo
8:32 pm - 10:17 pmMCI  Kansas City-ONT Ontario
27h 45m1 stop Denver Intl
$169Frontier
Thu, Dec 3 - Mon, Dec 7
Multiple Airlines Logo
11:30 am - 7:35 pmONT  Ontario-MCI Kansas City
6h 05m1 stop Denver Intl
Multiple Airlines Logo
6:30 am - 4:05 pmMCI  Kansas City-ONT Ontario
11h 35m1 stop Seattle/Tacoma Intl
$242Multiple Airlines
Mon, Dec 14 - Wed, Dec 16
Multiple Airlines Logo
12:02 pm - 11:59 pmONT  Ontario-MCI Kansas City
9h 57m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
8:29 pm - 12:14 amMCI  Kansas City-ONT Ontario
5h 45m1 stop Denver Intl
$250Multiple Airlines
Thu, Nov 19 - Sun, Nov 22
American Airlines Logo
6:05 am - 1:17 pmONT  Ontario-MCI Kansas City
5h 12m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
8:01 am - 4:19 pmMCI  Kansas City-ONT Ontario
10h 18m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$272American Airlines
Thu, Nov 12 - Tue, Nov 17
Southwest Logo
12:00 pm - 8:40 pmONT  Ontario-MCI Kansas City
6h 40m2 stops Phoenix Sky Harbor Intl Denver Intl
Southwest Logo
6:40 pm - 9:45 pmMCI  Kansas City-ONT Ontario
5h 05m1 stop Denver Intl
$308Southwest
Wed, Jan 20 - Fri, Jan 22
American Airlines Logo
1:23 pm - 11:19 pmONT  Ontario-MCI Kansas City
7h 56m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
American Airlines Logo
8:13 am - 12:38 pmMCI  Kansas City-ONT Ontario
6h 25m1 stop Phoenix Sky Harbor Intl
$308American Airlines
Fri, Dec 4 - Mon, Dec 7
United Airlines Logo
9:25 am - 5:50 pmONT  Ontario-MCI Kansas City
6h 25m1 stop San Francisco
United Airlines Logo
5:20 pm - 8:51 pmMCI  Kansas City-ONT Ontario
5h 31m1 stop Denver Intl
$378United Airlines
Sat, Nov 14 - Sat, Nov 21
United Airlines Logo
5:00 am - 12:28 pmONT  Ontario-MCI Kansas City
5h 28m1 stop Denver Intl
United Airlines Logo
5:45 am - 12:29 pmMCI  Kansas City-ONT Ontario
8h 44m2 stops Denver Intl San Francisco
$382United Airlines
Wed, Nov 11 - Thu, Nov 12
Southwest Logo
9:50 am - 6:20 pmONT  Ontario-MCI Kansas City
6h 30m1 stop Sacramento Intl
Southwest Logo
11:50 am - 3:55 pmMCI  Kansas City-ONT Ontario
6h 05m1 stop Las Vegas Harry Reid Intl
$497Southwest
Fri, Apr 16 - Mon, Apr 19

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Frontier flights from Ontario to Kansas City

Our best Frontier deals on Ontario to Kansas City flight tickets
Frontier
Dec 3
ONT6:00 amOntario
11h 33m
1 stop
MCI7:33 pmKansas City
Dec 7
MCI8:32 pmKansas City
16h 13m
1 stop
ONT10:45 amOntario
$168
Frontier
Dec 3
ONT11:30 amOntario
6h 03m
1 stop
MCI7:33 pmKansas City
Dec 7
MCI8:32 pmKansas City
27h 45m
1 stop
ONT10:17 pmOntario
$169
Frontier
Dec 8
ONT11:30 amOntario
6h 05m
1 stop
MCI7:35 pmKansas City
Dec 10
MCI8:32 pmKansas City
5h 48m
1 stop
ONT12:20 amOntario
$174

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 12/3

6:00 am-7:33 pm

1 stop11h 33m

Kansas City

Mon 12/7

8:32 pm-10:45 am

1 stop16h 13m

$168

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 12/3

11:30 am-7:33 pm

1 stop6h 03m

Kansas City

Mon 12/7

8:32 pm-10:17 pm

1 stop27h 45m

$169

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Mon 12/14

11:30 am-7:35 pm

1 stop6h 05m

Kansas City

Wed 12/16

6:30 am-4:05 pm

1 stop11h 35m

$242

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 11/19

12:02 pm-11:59 pm

1 stop9h 57m

Kansas City

Sun 11/22

8:29 pm-12:14 am

1 stop5h 45m

$250

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 11/12

6:05 am-1:17 pm

1 stop5h 12m

Kansas City

Tue 11/17

8:01 am-4:19 pm

2 stops10h 18m

$272
Quickest round-trip

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Wed 1/20

12:00 pm-8:40 pm

2 stops6h 40m

Kansas City

Fri 1/22

6:40 pm-9:45 pm

1 stop5h 05m

$308

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Fri 12/4

1:23 pm-11:19 pm

2 stops7h 56m

Kansas City

Mon 12/7

8:13 am-12:38 pm

1 stop6h 25m

$308

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Sat 11/14

9:25 am-5:50 pm

1 stop6h 25m

Kansas City

Sat 11/21

5:20 pm-8:51 pm

1 stop5h 31m

$378

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Wed 11/11

5:00 am-12:28 pm

1 stop5h 28m

Kansas City

Thu 11/12

5:45 am-12:29 pm

2 stops8h 44m

$382

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Fri 4/16

9:50 am-6:20 pm

1 stop6h 30m

Kansas City

Mon 4/19

11:50 am-3:55 pm

1 stop6h 05m

$497

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kansas City from

How to get the cheapest flight ticket from Ontario to Kansas City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ontario and Kansas City?

Prices are currently low for flights on this route.

Typical prices usually range from $250 to $500.
The lowest price recently found on this route was $168.

What is the cheapest month to fly to Kansas City?

In general, February is the cheapest month to fly from Ontario to Kansas City. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $301. If you’re not able to fly to Kansas City in February, then November is your next best option. Flight prices from Ontario to Kansas City during November average around $356.

What is the cheapest day to depart on your flight to Kansas City?

The cheapest day to depart on your flight to Kansas City is on a Saturday when prices can be found for as low as $456. This is often the case because there is less demand to fly during this day of the week. Flights from Ontario to Kansas City on a Sunday will generally be more expensive and average around $552. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Kansas City?

Flying to Kansas City from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $397 when looking at flights departing at noon. Try not to purchase tickets in the evening because they tend to be around $519. Of course, these prices can vary depending on the time of year and what airport you fly to.

How have Ontario to Kansas City flight prices changed over time?

As of October 2026, prices for Ontario to Kansas City flights are approximately 44% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Kansas City

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Kansas City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Kansas City (ONT to MCI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Kansas City

Best Price Found

$69

Fastest flight time

4h 58m

Direct flights

None
The best one-way flight to Kansas City from Ontario in the past 72 hours is $69. The best round-trip flight deal from Ontario to Kansas City found on momondo in the last 72 hours is $168.
The fastest flight from Ontario to Kansas City takes 4h 58m
There are no direct flights from Ontario to Kansas City. There are no popular flight routes from Ontario to Kansas City.
Search flight deals

Frequently asked questions about flying from Ontario to Kansas City

  • How far is Ontario to Kansas City by plane?

    The straight-line distance from Ontario to Kansas City is 1321.7 mi. A reasonable flight in good conditions will take 4h 58m.

  • When did momondo last update prices for flights from Ontario Airport to Kansas City Airport?

    Prices for flights from Ontario Airport to Kansas City Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Kansas City Airport?

  • How old do you have to be to fly from Ontario Airport to Kansas City Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Kansas City Airport.

  • What documentation or ID do you need to fly to Kansas City Airport?

    The travel and health documents required for your trip to Kansas City Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kansas City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Kansas City?

Best airlines flying from Ontario to Kansas City

Compare and see reviews for airlines that fly from Ontario to Kansas City with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $155Free CancellationRating
5.5
2,516 reviews
Search Frontier flights
United AirlinesPriceFrom $236Free CancellationRating
7.3
10,441 reviews
Search United Airlines flights
DeltaPriceFrom $246Free CancellationRating
7.8
8,681 reviews
Search Delta flights
SouthwestPriceFrom $254Free CancellationRating
7.9
4,218 reviews
Search Southwest flights
American AirlinesPriceFrom $301Free CancellationRating
7.0
12,189 reviews
Search American Airlines flights

Traveling to a place near Kansas City?

Book flights to Kansas City if you plan to visit one of these locations
Overland Park
Kansas City
Topeka
Independence
Lawrence
Lenexa
Olathe
Blue Springs
Lee's Summit
Liberty
North Kansas City
Leavenworth
Gladstone
Belton
Shawnee
Warrensburg
Cameron
Excelsior Springs
Lansing
Missouri City

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Kansas City?

Finding the right flight to Kansas City from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Kansas City quick and easy, saving you time and money.

Can I find flights from Ontario to Kansas City with flexible booking policies on momondo?

Yes. All flights to Kansas City from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Kansas City?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Kansas City from Ontario.

I’m not ready to book a flight from Ontario to Kansas City right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Kansas City flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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