Cheap flights from Kansas City to Los Angeles from $97
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 10/27. 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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Not ready to book? to track prices.Southwest flights from Kansas City to Ontario
Our best Southwest deals on Kansas City to Ontario flight tickets
Frontier flights from Kansas City to Ontario
Our best Frontier deals on Kansas City to Ontario flight tickets
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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
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sat 10/31
8:43 pm-11:35 am
1 stop16h 52m
Ontario
Wed 11/4
6:30 am-7:47 pm
1 stop11h 17m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Tue 11/10
8:43 pm-11:51 pm
1 stop5h 08m
Ontario
Tue 11/17
6:30 am-7:47 pm
1 stop11h 17m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sat 10/31
8:43 pm-11:51 pm
1 stop5h 08m
Ontario
Sat 11/7
6:00 am-11:59 pm
1 stop15h 59m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sat 10/31
9:48 am-1:30 pm
1 stop5h 42m
Ontario
Sat 11/7
4:51 pm-11:48 pm
1 stop4h 57m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sat 1/9
8:00 am-2:25 pm
1 stop8h 25m
Ontario
Tue 1/12
12:00 pm-9:30 pm
1 stop7h 30m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Thu 12/10
10:30 am-3:10 pm
1 stop6h 40m
Ontario
Mon 12/14
6:50 am-4:35 pm
1 stop7h 45m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Wed 11/11
8:13 am-12:38 pm
1 stop6h 25m
Ontario
Mon 11/16
11:59 pm-10:09 am
1 stop8h 10m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sat 1/9
5:40 am-11:27 am
1 stop7h 47m
Ontario
Tue 1/12
1:00 pm-9:06 pm
1 stop6h 06m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Tue 11/3
6:00 am-12:33 pm
2 stops8h 33m
Ontario
Mon 11/9
9:25 am-5:07 pm
1 stop5h 42m
Kansas CityOntario
MCI Kansas City - ONT Ontario
MCIONT
Kansas City
Sat 1/9
5:45 am-3:18 pm
2 stops11h 33m
Ontario
Tue 1/12
1:42 pm-8:35 pm
1 stop4h 53m
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 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 $167.
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 $307.
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.
What is the cheapest airline that flies from Kansas City to Ontario?
Frontier, Southwest, and Delta are the most popular carriers operating from Kansas City to Ontario
What airlines fly to Ontario?
Southwest, Delta and Frontier are the top three most popular airlines that fly to Ontario from Kansas City according to our data. Southwest is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Kansas City and Ontario?
Denver (DEN) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Kansas City to Ontario?
Flights via Phoenix (PHX) offer the lowest average round-trip price of $412.
Which layover airport has the shortest travel time from Kansas City to Ontario?
Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 4h 55m.
Which layover airport has the shortest connection time from Kansas City to Ontario?
Phoenix (PHX) has the shortest average layover time for this route: 0h 58m.
When to book flights from Kansas City to Ontario
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
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 08m.
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?
There are 4 operators available for flights from Kansas City Airport to Ontario Airport as of October 2026.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Kansas City to Ontario is Southwest (42% of total bookings). The next most popular airlines are Frontier (28%), American Airlines (23%), and United Airlines (8%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $125 | Free Cancellation | Rating 5.6 2,551 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 7.0 12,148 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.9 4,225 reviews | |||
| PriceFrom $284 | Free Cancellation | Rating 7.4 10,329 reviews |
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.