Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Kansas City to Los Angeles from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kansas City to Los Angeles departing on 8/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Kansas City to Los Angeles

Cheap round-trip flights

Alaska Airlines Logo
4:55 pm - 11:53 pmMCI-ONT
8h 58m1 stop
Alaska Airlines Logo
5:49 pm - 4:01 pmONT-MCI
20h 12m1 stop
$204Alaska Airlines
Find Deal
jue., ago. 28 - mar., sep. 2
Southwest Logo
11:20 am - 2:15 pmMCI-ONT
4h 55m1 stop
Southwest Logo
6:05 am - 3:40 pmONT-MCI
7h 35m2 stops
$210Southwest
Find Deal
jue., sep. 4 - mar., sep. 9
Frontier Logo
2:55 pm - 7:54 pmMCI-ONT
6h 59m1 stop
Frontier Logo
8:59 pm - 1:48 pmONT-MCI
14h 49m1 stop
$236Frontier
Find Deal
jue., sep. 11 - dom., sep. 14
Frontier Logo
7:20 pm - 9:09 amMCI-ONT
15h 49m1 stop
Frontier Logo
12:59 am - 6:23 pmONT-MCI
15h 24m1 stop
$237Frontier
Find Deal
mié., jul. 23 - mar., jul. 29
American Airlines Logo
5:45 am - 11:32 amMCI-ONT
7h 47m2 stops
American Airlines Logo
11:59 pm - 8:55 amONT-MCI
6h 56m1 stop
$252American Airlines
Find Deal
jue., ago. 14 - dom., ago. 17
Delta Logo
6:40 am - 12:14 pmMCI-ONT
7h 34m1 stop
Delta Logo
9:50 am - 5:04 pmONT-MCI
5h 14m1 stop
$257Delta
Find Deal
jue., ago. 7 - jue., ago. 14
Delta Logo
5:45 am - 8:47 amMCI-ONT
5h 02m1 stop
Delta Logo
9:50 am - 5:04 pmONT-MCI
5h 14m1 stop
$258Delta
Find Deal
jue., ago. 7 - jue., ago. 14
American Airlines Logo
5:34 am - 9:28 amMCI-ONT
5h 54m1 stop
American Airlines Logo
11:18 pm - 10:30 amONT-MCI
9h 12m1 stop
$266American Airlines
Find Deal
jue., nov. 13 - lun., nov. 17
Hawaiian Airlines Logo
7:00 am - 12:37 pmMCI-ONT
7h 37m1 stop
Hawaiian Airlines Logo
7:25 am - 3:54 pmONT-MCI
6h 29m1 stop
$279Hawaiian Airlines
Find Deal
jue., oct. 23 - jue., oct. 30
Hawaiian Airlines Logo
3:34 pm - 12:15 amMCI-ONT
10h 41m1 stop
Hawaiian Airlines Logo
2:21 pm - 11:35 pmONT-MCI
7h 14m1 stop
$287Hawaiian Airlines
Find Deal
mar., ago. 5 - jue., ago. 14

Southwest flights from Kansas City to Ontario

Our best Southwest deals on Kansas City to Ontario flight tickets
Southwest
Sep 4
MCI11:20 amKansas City
4h 55m
1 stop
ONT2:15 pmOntario
Sep 9
ONT6:05 amOntario
7h 35m
2 stops
MCI3:40 pmKansas City
Southwest
Sep 4
MCI8:00 amKansas City
6h 40m
2 stops
ONT12:40 pmOntario
Sep 9
ONT10:00 amOntario
8h 20m
2 stops
MCI8:20 pmKansas City
Southwest
Aug 14
MCI1:45 pmKansas City
4h 45m
1 stop
ONT4:30 pmOntario
Aug 17
ONT3:45 pmOntario
7h 40m
1 stop
MCI1:25 amKansas City

American Airlines flights from Kansas City to Ontario

Our best American Airlines deals on Kansas City to Ontario flight tickets
American Airlines
Aug 14
MCI5:45 amKansas City
7h 47m
2 stops
ONT11:32 amOntario
Aug 17
ONT11:59 pmOntario
6h 56m
1 stop
MCI8:55 amKansas City
American Airlines
Nov 13
MCI5:34 amKansas City
5h 54m
1 stop
ONT9:28 amOntario
Nov 17
ONT11:18 pmOntario
9h 12m
1 stop
MCI10:30 amKansas City
American Airlines
Jul 30
MCI7:49 pmKansas City
6h 05m
1 stop
ONT11:54 pmOntario
Aug 4
ONT10:28 pmOntario
10h 36m
1 stop
MCI11:04 amKansas City

See travel insights to Los Angeles from

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 cheapest month to fly to Ontario?

In general, September 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 $256. If you aren’t able to travel during the month of September, then book flights to Ontario from Kansas City during October instead. Flights to Ontario in October, while not as cheap as those in September, still average around $346.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Wednesday when prices can be found for as low as $325. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Kansas City to Ontario for around $401.

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

In the evening is the cheapest time of day to fly from Kansas City to Ontario when you can find flight prices for as low as $185. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $386 on average. Flights to Ontario from Kansas City in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Kansas City when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $374 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Kansas City for as low as $205 on momondo.

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

As of July 2025, prices for Kansas City to Ontario flights are approximately 36% 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

$98

Fastest flight time

4h 45m

Direct flights

None

Airports in Ontario

1 airport
The best one-way flight to Ontario from Kansas City in the past 72 hours is $98. The best round-trip flight deal from Kansas City to Ontario found on momondo in the last 72 hours is $204.
The fastest flight from Kansas City to Ontario takes 4h 45m
There are no direct flights from Kansas City to Ontario. Popular non-direct route for this connection is Kansas City Airport - Ontario Airport.
There is 1 airport near Ontario: Ontario (ONT)

  • 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 4h 45m.

  • 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 $107Free CancellationRating
5.9
3,284 reviews
Search Frontier flights
DeltaPriceFrom $248Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $315Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights
SouthwestPriceFrom $316Free CancellationRating
8.0
4,270 reviews
Search Southwest 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.


An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
mar. 7/8
mar. 7/15

Find better results for your trip to the United States