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Cheap flights from Ontario to Kansas City from $62

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Kansas City departing on 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Kansas City

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:20 am - 7:58 pm
ONT
-
MCI
11h 38m1 stop
Frontier Logo
8:41 pm - 9:34 pm
MCI
-
ONT
26h 53m1 stop
$133Frontier
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
8:10 am - 3:44 pm
ONT
-
MCI
5h 34m1 stop
Frontier Logo
4:39 pm - 9:34 am
MCI
-
ONT
18h 55m1 stop
$135Frontier
Wed, Feb 11 - Wed, Feb 18
Frontier Logo
8:10 am - 3:44 pm
ONT
-
MCI
5h 34m1 stop
Frontier Logo
4:39 pm - 9:34 pm
MCI
-
ONT
6h 55m1 stop
$136Frontier
Wed, Feb 11 - Wed, Feb 18
Frontier Logo
8:40 am - 3:44 pm
ONT
-
MCI
5h 04m1 stop
Frontier Logo
8:40 pm - 12:01 am
MCI
-
ONT
5h 21m1 stop
$139Frontier
Wed, Mar 4 - Sat, Mar 28
Frontier Logo
2:08 pm - 5:28 pm
ONT
-
MCI
25h 20m1 stop
Frontier Logo
8:36 pm - 7:59 am
MCI
-
ONT
13h 23m1 stop
$142Frontier
Thu, Feb 19 - Sat, Feb 21
Frontier Logo
6:00 am - 7:46 pm
ONT
-
MCI
11h 46m1 stop
Frontier Logo
8:40 pm - 12:01 am
MCI
-
ONT
5h 21m1 stop
$147Frontier
Sat, Feb 28 - Sat, Mar 28
Frontier Logo
6:20 am - 7:51 pm
ONT
-
MCI
11h 31m1 stop
Frontier Logo
5:48 pm - 9:34 pm
MCI
-
ONT
5h 46m1 stop
$151Frontier
Mon, Feb 9 - Wed, Feb 11
Frontier Logo
6:00 am - 7:46 pm
ONT
-
MCI
11h 46m1 stop
Frontier Logo
8:36 pm - 11:59 pm
MCI
-
ONT
5h 23m1 stop
$154Frontier
Sat, Feb 14 - Sat, Feb 21
Frontier Logo
6:20 am - 7:51 pm
ONT
-
MCI
11h 31m1 stop
Frontier Logo
8:41 pm - 9:34 pm
MCI
-
ONT
26h 53m1 stop
$158Frontier
Fri, Feb 6 - Mon, Feb 9
Multiple Airlines Logo
3:04 pm - 11:33 pm
ONT
-
MCI
6h 29m1 stop
Multiple Airlines Logo
8:41 pm - 3:07 pm
MCI
-
ONT
20h 26m1 stop
$159Multiple Airlines
Sat, Jan 31 - Mon, Feb 2

Frontier flights from Ontario to Kansas City

Our best Frontier deals on Ontario to Kansas City flight tickets
Frontier
Feb 18
ONT7:30 amOntario
6h 14m
1 stop
MCI3:44 pmKansas City
Feb 21
MCI8:36 pmKansas City
5h 23m
1 stop
ONT11:59 pmOntario
$128
Frontier
Feb 5
ONT6:20 amOntario
11h 38m
1 stop
MCI7:58 pmKansas City
Feb 9
MCI8:41 pmKansas City
26h 53m
1 stop
ONT9:34 pmOntario
$133
Frontier
Feb 11
ONT8:10 amOntario
5h 34m
1 stop
MCI3:44 pmKansas City
Feb 18
MCI4:39 pmKansas City
18h 55m
1 stop
ONT9:34 amOntario
$135

American Airlines flights from Ontario to Kansas City

Our best American Airlines deals on Ontario to Kansas City flight tickets
American Airlines
Jan 27
ONT6:22 amOntario
5h 13m
1 stop
MCI1:35 pmKansas City
Feb 3
MCI5:48 amKansas City
6h 20m
1 stop
ONT10:08 amOntario
$181
American Airlines
Jan 29
ONT3:09 pmOntario
6h 03m
1 stop
MCI11:12 pmKansas City
Feb 2
MCI11:55 amKansas City
8h 50m
1 stop
ONT6:45 pmOntario
$217
American Airlines
Jan 22
ONT7:16 amOntario
7h 31m
1 stop
MCI4:47 pmKansas City
Jan 26
MCI5:49 pmKansas City
6h 59m
1 stop
ONT10:48 pmOntario
$382

momondo 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, momondo users made 832,500 searches. Data last updated January 8, 2026.
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

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Thu 2/5

6:20 am-7:58 pm

1 stop11h 38m

Kansas City

Mon 2/9

8:41 pm-9:34 pm

1 stop26h 53m

$133

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 2/11

8:10 am-3:44 pm

1 stop5h 34m

Kansas City

Wed 2/18

4:39 pm-9:34 am

1 stop18h 55m

$135

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 2/11

8:10 am-3:44 pm

1 stop5h 34m

Kansas City

Wed 2/18

4:39 pm-9:34 pm

1 stop6h 55m

$136

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Wed 3/4

8:40 am-3:44 pm

1 stop5h 04m

Kansas City

Sat 3/28

8:40 pm-12:01 am

1 stop5h 21m

$139

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Thu 2/19

2:08 pm-5:28 pm

1 stop25h 20m

Kansas City

Sat 2/21

8:36 pm-7:59 am

1 stop13h 23m

$142

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Sat 2/28

6:00 am-7:46 pm

1 stop11h 46m

Kansas City

Sat 3/28

8:40 pm-12:01 am

1 stop5h 21m

$147

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Mon 2/9

6:20 am-7:51 pm

1 stop11h 31m

Kansas City

Wed 2/11

5:48 pm-9:34 pm

1 stop5h 46m

$151

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Sat 2/14

6:00 am-7:46 pm

1 stop11h 46m

Kansas City

Sat 2/21

8:36 pm-11:59 pm

1 stop5h 23m

$154

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Fri 2/6

6:20 am-7:51 pm

1 stop11h 31m

Kansas City

Mon 2/9

8:41 pm-9:34 pm

1 stop26h 53m

$158

OntarioKansas City

ONT - MCI

ONTMCI

Ontario

Sat 1/31

3:04 pm-11:33 pm

1 stop6h 29m

Kansas City

Mon 2/2

8:41 pm-3:07 pm

1 stop20h 26m

$159

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 cheapest month to fly to Kansas City?

In general, August 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 $247. If you’re not able to fly to Kansas City in August, then September is your next best option. Flight prices from Ontario to Kansas City during September average around $266.

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 Thursday when prices can be found for as low as $279. 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 Saturday will generally be more expensive and average around $380. 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 in the evening is the least expensive time of day to depart. momondo users have found prices as low as $164 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $372. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Kansas City from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Kansas City for around $408 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kansas City from Ontario for as low as $267 on momondo.

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

As of January 2026, prices for Ontario to Kansas City flights are approximately 18% 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

Fastest flight time

4h 50m

Direct flights

None
The fastest flight from Ontario to Kansas City takes 4h 50m
There are no direct flights from Ontario to Kansas City. There are no popular flight routes from Ontario to Kansas City.
Search flight deals

  • 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 50m.

  • 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
DeltaPriceFrom $98Free CancellationRating
7.9
8,025 reviews
Search Delta flights
FrontierPriceFrom $115Free CancellationRating
5.7
3,062 reviews
Search Frontier flights
SouthwestPriceFrom $247Free CancellationRating
8.0
4,250 reviews
Search Southwest flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
American AirlinesPriceFrom $318Free CancellationRating
7.2
11,095 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
Topeka
Kansas City
Independence
Lawrence
Olathe
Liberty
Blue Springs
Lenexa
Lee's Summit
North Kansas City
Excelsior Springs
Leavenworth
Warrensburg
Shawnee
Belton
Gladstone
Cameron
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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