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Cheap flights from Ontario to Kansas City from $86

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
11:45 am - 7:37 pmONT  Ontario-MCI Kansas City
5h 52m1 stop Denver Intl
Frontier Logo
8:32 pm - 11:47 pmMCI  Kansas City-ONT Ontario
5h 15m1 stop Denver Intl
$179Frontier
Thu, Oct 1 - Wed, Oct 7
Frontier Logo
11:52 am - 7:48 pmONT  Ontario-MCI Kansas City
5h 56m1 stop Denver Intl
Frontier Logo
8:43 pm - 11:50 pmMCI  Kansas City-ONT Ontario
5h 07m1 stop Denver Intl
$180Frontier
Wed, Oct 14 - Tue, Oct 20
Multiple Airlines Logo
6:15 am - 7:37 pmONT  Ontario-MCI Kansas City
11h 22m1 stop Denver Intl
Multiple Airlines Logo
6:17 am - 1:16 pmMCI  Kansas City-ONT Ontario
8h 59m1 stop Seattle/Tacoma Intl
$292Multiple Airlines
Wed, Sep 30 - Wed, Oct 7
Multiple Airlines Logo
2:13 pm - 11:59 pmONT  Ontario-MCI Kansas City
7h 46m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
8:43 pm - 11:50 pmMCI  Kansas City-ONT Ontario
5h 07m1 stop Denver Intl
$303Multiple Airlines
Thu, Oct 8 - Thu, Oct 15
United Airlines Logo
5:00 am - 12:42 pmONT  Ontario-MCI Kansas City
5h 42m1 stop Denver Intl
United Airlines Logo
5:24 pm - 8:58 pmMCI  Kansas City-ONT Ontario
5h 34m1 stop Denver Intl
$371United Airlines
Wed, Oct 14 - Wed, Oct 14
American Airlines Logo
12:37 pm - 8:20 pmONT  Ontario-MCI Kansas City
5h 43m1 stop Dallas/Fort Worth
American Airlines Logo
8:01 am - 11:53 amMCI  Kansas City-ONT Ontario
5h 52m1 stop Dallas/Fort Worth
$372American Airlines
Thu, Oct 1 - Wed, Oct 7
American Airlines Logo
1:04 pm - 8:59 pmONT  Ontario-MCI Kansas City
5h 55m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
8:15 am - 12:14 pmMCI  Kansas City-ONT Ontario
5h 59m1 stop Phoenix Sky Harbor Intl
$372American Airlines
Thu, Oct 1 - Wed, Oct 7
Delta Logo
11:10 pm - 9:27 amONT  Ontario-MCI Kansas City
8h 17m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 12:17 pmMCI  Kansas City-ONT Ontario
7h 17m1 stop Salt Lake City
$433Delta
Mon, Nov 16 - Wed, Nov 18
Delta Logo
12:00 pm - 11:58 pmONT  Ontario-MCI Kansas City
9h 58m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:30 am - 1:57 pmMCI  Kansas City-ONT Ontario
8h 27m1 stop Seattle/Tacoma Intl
$434Delta
Mon, Jan 18 - Thu, Jan 21
United Airlines Logo
5:00 am - 12:52 pmONT  Ontario-MCI Kansas City
5h 52m1 stop Denver Intl
United Airlines Logo
3:08 pm - 9:40 pmMCI  Kansas City-ONT Ontario
8h 32m1 stop Houston George Bush Intcntl
$461United Airlines
Thu, Jan 14 - Mon, Jan 18

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Frontier flights from Ontario to Kansas City

Our best Frontier deals on Ontario to Kansas City flight tickets
Frontier
Oct 1
ONT11:45 amOntario
5h 52m
1 stop
MCI7:37 pmKansas City
Oct 7
MCI8:32 pmKansas City
5h 15m
1 stop
ONT11:47 pmOntario
$179
Frontier
Oct 14
ONT11:52 amOntario
5h 56m
1 stop
MCI7:48 pmKansas City
Oct 20
MCI8:43 pmKansas City
5h 07m
1 stop
ONT11:50 pmOntario
$180
Frontier
Nov 14
ONT11:52 amOntario
5h 55m
1 stop
MCI7:47 pmKansas City
Nov 18
MCI8:43 pmKansas City
5h 08m
1 stop
ONT11:51 pmOntario
$184

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 10/1

11:45 am-7:37 pm

1 stop5h 52m

Kansas City

Wed 10/7

8:32 pm-11:47 pm

1 stop5h 15m

$179
Quickest round-trip

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Wed 10/14

11:52 am-7:48 pm

1 stop5h 56m

Kansas City

Tue 10/20

8:43 pm-11:50 pm

1 stop5h 07m

$180

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Wed 9/30

6:15 am-7:37 pm

1 stop11h 22m

Kansas City

Wed 10/7

6:17 am-1:16 pm

1 stop8h 59m

$292

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 10/8

2:13 pm-11:59 pm

1 stop7h 46m

Kansas City

Thu 10/15

8:43 pm-11:50 pm

1 stop5h 07m

$303

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Wed 10/14

5:00 am-12:42 pm

1 stop5h 42m

Kansas City

Wed 10/14

5:24 pm-8:58 pm

1 stop5h 34m

$371

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 10/1

12:37 pm-8:20 pm

1 stop5h 43m

Kansas City

Wed 10/7

8:01 am-11:53 am

1 stop5h 52m

$372

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 10/1

1:04 pm-8:59 pm

1 stop5h 55m

Kansas City

Wed 10/7

8:15 am-12:14 pm

1 stop5h 59m

$372

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Mon 11/16

11:10 pm-9:27 am

1 stop8h 17m

Kansas City

Wed 11/18

7:00 am-12:17 pm

1 stop7h 17m

$433

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Mon 1/18

12:00 pm-11:58 pm

1 stop9h 58m

Kansas City

Thu 1/21

7:30 am-1:57 pm

1 stop8h 27m

$434

OntarioKansas City

ONT Ontario - MCI Kansas City

ONTMCI

Ontario

Thu 1/14

5:00 am-12:52 pm

1 stop5h 52m

Kansas City

Mon 1/18

3:08 pm-9:40 pm

1 stop8h 32m

$461

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 $194 to $676.
The lowest price recently found on this route was $179.

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 March is your next best option. Flight prices from Ontario to Kansas City during March average around $362.

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 $446. 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 $538. 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 $512. 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 from Ontario 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 $417 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 $209 on momondo.

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

As of September 2026, prices for Ontario to Kansas City flights are approximately 14% more expensive 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

$86

Fastest flight time

5h 13m

Direct flights

None
The best one-way flight to Kansas City from Ontario in the past 72 hours is $86. The best round-trip flight deal from Ontario to Kansas City found on momondo in the last 72 hours is $179.
The fastest flight from Ontario to Kansas City takes 5h 13m
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 5h 13m.

  • 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 $145Free CancellationRating
5.6
2,607 reviews
Search Frontier flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
10,206 reviews
Search United Airlines flights
DeltaPriceFrom $246Free CancellationRating
7.8
8,563 reviews
Search Delta flights
SouthwestPriceFrom $281Free CancellationRating
8.0
4,192 reviews
Search Southwest flights
American AirlinesPriceFrom $301Free CancellationRating
7.1
12,050 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
Lenexa
Blue Springs
Olathe
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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