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Cheap flights from Kansas City to Los Angeles from $77

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Kansas City to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:43 pm - 10:42 amMCI  Kansas City-ONT Ontario
15h 59m1 stop Denver Intl
Frontier Logo
6:25 am - 7:47 pmONT  Ontario-MCI Kansas City
11h 22m1 stop Denver Intl
$136Frontier
Fri, Nov 13 - Mon, Nov 16
Frontier Logo
8:43 pm - 10:42 amMCI  Kansas City-ONT Ontario
15h 59m1 stop Denver Intl
Frontier Logo
6:25 am - 7:47 pmONT  Ontario-MCI Kansas City
11h 22m1 stop Denver Intl
$168Frontier
Fri, Nov 6 - Tue, Nov 10
Multiple Airlines Logo
12:53 pm - 4:21 pmMCI  Kansas City-ONT Ontario
5h 28m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
12:02 pm - 11:59 pmONT  Ontario-MCI Kansas City
9h 57m1 stop Seattle/Tacoma Intl
$354Multiple Airlines
Mon, Nov 2 - Thu, Nov 12
Delta Logo
5:40 am - 11:06 amMCI  Kansas City-ONT Ontario
7h 26m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:35 pm - 9:12 pmONT  Ontario-MCI Kansas City
5h 37m1 stop Salt Lake City
$371Delta
Wed, Oct 28 - Tue, Nov 3
Southwest Logo
7:20 pm - 11:45 pmMCI  Kansas City-ONT Ontario
6h 25m2 stops Denver Intl Las Vegas Harry Reid Intl
Southwest Logo
12:50 pm - 9:25 pmONT  Ontario-MCI Kansas City
6h 35m2 stops Phoenix Sky Harbor Intl Denver Intl
$381Southwest
Sat, Nov 21 - Tue, Dec 1
Southwest Logo
5:35 am - 11:20 amMCI  Kansas City-ONT Ontario
7h 45m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl
Southwest Logo
10:25 am - 7:40 pmONT  Ontario-MCI Kansas City
7h 15m2 stops San Jose San Diego
$381Southwest
Sat, Nov 7 - Wed, Nov 11
United Airlines Logo
11:31 am - 6:01 pmMCI  Kansas City-ONT Ontario
8h 30m2 stops Denver Intl San Francisco
United Airlines Logo
6:00 am - 4:11 pmONT  Ontario-MCI Kansas City
8h 11m2 stops San Francisco Denver Intl
$403United Airlines
Wed, Nov 4 - Tue, Nov 10
American Airlines Logo
6:57 am - 3:16 pmMCI  Kansas City-ONT Ontario
10h 19m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
1:23 pm - 11:37 pmONT  Ontario-MCI Kansas City
8h 14m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
$432American Airlines
Sat, Oct 31 - Sat, Nov 7
United Airlines Logo
5:45 am - 12:29 pmMCI  Kansas City-ONT Ontario
8h 44m2 stops Denver Intl San Francisco
United Airlines Logo
6:00 am - 4:11 pmONT  Ontario-MCI Kansas City
8h 11m2 stops San Francisco Denver Intl
$477United Airlines
Sat, Nov 7 - Sun, Nov 8
American Airlines Logo
6:34 am - 12:45 pmMCI  Kansas City-ONT Ontario
8h 11m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
American Airlines Logo
2:22 pm - 9:54 pmONT  Ontario-MCI Kansas City
5h 32m1 stop Dallas/Fort Worth
$499American Airlines
Mon, Nov 23 - Thu, Dec 31

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Frontier flights from Kansas City to Ontario

Our best Frontier deals on Kansas City to Ontario flight tickets
Frontier
Nov 13
MCI8:43 pmKansas City
15h 59m
1 stop
ONT10:42 amOntario
Nov 16
ONT6:25 amOntario
11h 22m
1 stop
MCI7:47 pmKansas City
$136
Frontier
Nov 6
MCI8:43 pmKansas City
15h 59m
1 stop
ONT10:42 amOntario
Nov 10
ONT6:25 amOntario
11h 22m
1 stop
MCI7:47 pmKansas City
$168
Frontier
Nov 7
MCI8:43 pmKansas City
5h 08m
1 stop
ONT11:51 pmOntario
Nov 16
ONT6:25 amOntario
11h 22m
1 stop
MCI7:47 pmKansas City
$170

Delta flights from Kansas City to Ontario

Our best Delta deals on Kansas City to Ontario flight tickets
Delta
Oct 11
MCI5:40 amKansas City
7h 26m
1 stop
ONT11:06 amOntario
Oct 22
ONT5:03 pmOntario
5h 14m
1 stop
MCI12:17 amKansas City
$567
Delta
Oct 14
MCI7:45 amKansas City
6h 51m
1 stop
ONT12:36 pmOntario
Oct 14
ONT5:03 pmOntario
5h 14m
1 stop
MCI12:17 amKansas City
$577
Delta
Oct 11
MCI5:40 amKansas City
7h 26m
1 stop
ONT11:06 amOntario
Oct 23
ONT11:15 pmOntario
8h 13m
1 stop
MCI9:28 amKansas City
$594

momondo 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

Cheapest round-trip

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Fri 11/13

8:43 pm-10:42 am

1 stop15h 59m

Ontario

Mon 11/16

6:25 am-7:47 pm

1 stop11h 22m

$136

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Fri 11/6

8:43 pm-10:42 am

1 stop15h 59m

Ontario

Tue 11/10

6:25 am-7:47 pm

1 stop11h 22m

$168

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Mon 11/2

12:53 pm-4:21 pm

1 stop5h 28m

Ontario

Thu 11/12

12:02 pm-11:59 pm

1 stop9h 57m

$354

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Wed 10/28

5:40 am-11:06 am

1 stop7h 26m

Ontario

Tue 11/3

1:35 pm-9:12 pm

1 stop5h 37m

$371
Quickest round-trip

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Sat 11/21

7:20 pm-11:45 pm

2 stops6h 25m

Ontario

Tue 12/1

12:50 pm-9:25 pm

2 stops6h 35m

$381

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Sat 11/7

5:35 am-11:20 am

2 stops7h 45m

Ontario

Wed 11/11

10:25 am-7:40 pm

2 stops7h 15m

$381

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Wed 11/4

11:31 am-6:01 pm

2 stops8h 30m

Ontario

Tue 11/10

6:00 am-4:11 pm

2 stops8h 11m

$403

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Sat 10/31

6:57 am-3:16 pm

2 stops10h 19m

Ontario

Sat 11/7

1:23 pm-11:37 pm

2 stops8h 14m

$432

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Sat 11/7

5:45 am-12:29 pm

2 stops8h 44m

Ontario

Sun 11/8

6:00 am-4:11 pm

2 stops8h 11m

$477

Kansas CityOntario

MCI Kansas City - ONT Ontario

MCIONT

Kansas City

Mon 11/23

6:34 am-12:45 pm

2 stops8h 11m

Ontario

Thu 12/31

2:22 pm-9:54 pm

1 stop5h 32m

$499

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Kansas City to Ontario

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 Kansas City and Ontario?

Prices are currently low for flights on this route.

Typical prices usually range from $256 to $374.
The lowest price recently found on this route was $136.

What is the cheapest month to fly to Ontario?

In general, October is the cheapest month to fly from Kansas City to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $293. If you aren’t able to travel during the month of October, then book flights to Ontario from Kansas City during September instead. Flights to Ontario in September, while not as cheap as those in October, still average around $298.

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

As of October 2026, prices for Kansas City to Ontario flights are approximately 46% more expensive when compared to flights at the same time last year.

When to book flights from Kansas City to Ontario

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

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

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

Best Price Found

$77

Fastest flight time

5h 07m

Direct flights

None
The best one-way flight to Ontario from Kansas City in the past 72 hours is $77. The best round-trip flight deal from Kansas City to Ontario found on momondo in the last 72 hours is $136.
The fastest flight from Kansas City to Ontario takes 5h 07m
There are no direct flights from Kansas City to Ontario. There are no popular flight routes from Kansas City to Ontario.
Search flight deals

Frequently asked questions about flying from Kansas City to Ontario

  • How far is Kansas City to Ontario by plane?

    Kansas City and Ontario are 1321.7 mi apart from one another. In terms of flight time, this usually takes a little over 5h 07m.

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

    Prices for flights from Kansas City Airport to Ontario Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kansas City Airport to Ontario Airport.

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

    The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Kansas City to Ontario

Compare and see reviews for airlines that fly from Kansas City to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $125Free CancellationRating
5.6
2,563 reviews
Search Frontier flights
American AirlinesPriceFrom $248Free CancellationRating
7.0
12,129 reviews
Search American Airlines flights
SouthwestPriceFrom $256Free CancellationRating
7.9
4,215 reviews
Search Southwest flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
10,282 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Kansas City to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

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

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

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

Once you have performed a search for Kansas City to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Kansas City to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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