Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Missouri to Los Angeles 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 Missouri to Los Angeles departing on 2/14. 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.
Search flight deals

Find the cheapest flights from Missouri to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
3:46 pm - 11:24 pm
STL
-
ONT
9h 38m1 stop
Frontier Logo
8:36 am - 1:58 pm
ONT
-
STL
27h 22m1 stop
$133Frontier
Sat, Feb 7 - Tue, Feb 10
Frontier Logo
7:39 pm - 12:20 am
STL
-
ONT
6h 41m1 stop
Frontier Logo
6:20 am - 12:50 pm
ONT
-
STL
28h 30m1 stop
$134Frontier
Fri, Feb 6 - Sun, Feb 8
Multiple Airlines Logo
7:00 am - 2:12 pm
MCI
-
ONT
9h 12m1 stop
Multiple Airlines Logo
8:10 am - 3:44 pm
ONT
-
MCI
5h 34m1 stop
$150Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
American Airlines Logo
2:38 pm - 8:54 pm
MCI
-
ONT
8h 16m1 stop
American Airlines Logo
11:59 pm - 8:52 am
ONT
-
MCI
6h 53m1 stop
$181American Airlines
Tue, Apr 7 - Tue, Apr 14
Multiple Airlines Logo
9:42 pm - 1:37 pm
SGF
-
ONT
17h 55m1 stop
Multiple Airlines Logo
8:48 pm - 8:52 pm
ONT
-
SGF
22h 04m1 stop
$255Multiple Airlines
Mon, Feb 2 - Thu, Feb 5
American Airlines Logo
12:45 pm - 6:45 pm
SGF
-
ONT
8h 00m1 stop
American Airlines Logo
3:09 pm - 10:47 pm
ONT
-
SGF
5h 38m1 stop
$289American Airlines
Fri, Jan 30 - Sun, Feb 1
Delta Logo
6:00 am - 11:31 am
SGF
-
ONT
7h 31m1 stop
Delta Logo
12:41 pm - 9:46 pm
ONT
-
SGF
7h 05m1 stop
$314Delta
Thu, Jan 22 - Tue, Feb 3
United Airlines Logo
11:17 am - 8:58 pm
COU
-
ONT
11h 41m2 stops
United Airlines Logo
1:24 pm - 8:33 pm
ONT
-
COU
5h 09m1 stop
$334United Airlines
Fri, Jan 23 - Sun, Feb 8
United Airlines Logo
5:03 pm - 8:58 pm
SGF
-
ONT
5h 55m1 stop
United Airlines Logo
5:05 am - 12:46 pm
ONT
-
SGF
5h 41m1 stop
$339United Airlines
Thu, Jan 22 - Mon, Jan 26
Delta Logo
6:00 am - 11:31 am
SGF
-
ONT
7h 31m1 stop
Delta Logo
12:41 pm - 9:46 pm
ONT
-
SGF
7h 05m1 stop
$359Delta
Thu, Jan 22 - Mon, Feb 2

American Airlines flights from Missouri to Ontario

Our best American Airlines deals on Missouri to Ontario flight tickets
American Airlines
Apr 7
MCI2:38 pmKansas City
8h 16m
1 stop
ONT8:54 pmOntario
Apr 14
ONT11:59 pmOntario
6h 53m
1 stop
MCI8:52 amKansas City
$181
American Airlines
Feb 23
MCI2:24 pmKansas City
5h 51m
1 stop
ONT6:15 pmOntario
Mar 3
ONT5:02 pmOntario
4h 55m
1 stop
MCI11:57 pmKansas City
$200
American Airlines
Apr 7
MCI9:38 amKansas City
10h 46m
2 stops
ONT6:24 pmOntario
Apr 14
ONT9:24 amOntario
5h 43m
1 stop
MCI5:07 pmKansas City
$226

Frontier flights from Missouri to Ontario

Our best Frontier deals on Missouri to Ontario flight tickets
Frontier
Feb 7
STL3:46 pmLambert-St Louis
9h 38m
1 stop
ONT11:24 pmOntario
Feb 8
ONT6:20 amOntario
28h 30m
1 stop
STL12:50 pmLambert-St Louis
$133
Frontier
Feb 6
STL7:39 pmLambert-St Louis
6h 41m
1 stop
ONT12:20 amOntario
Feb 10
ONT8:36 amOntario
27h 22m
1 stop
STL1:58 pmLambert-St Louis
$134
Frontier
Feb 8
STL9:32 pmLambert-St Louis
16h 38m
1 stop
ONT12:10 pmOntario
Feb 10
ONT8:36 amOntario
27h 22m
1 stop
STL1:58 pmLambert-St Louis
$135

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Ontario 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 Missouri to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Sat 2/7

3:46 pm-11:24 pm

1 stop9h 38m

Ontario

Tue 2/10

8:36 am-1:58 pm

1 stop27h 22m

$133

St. LouisOntario

STL - ONT

STLONT

Lambert-St Louis

Fri 2/6

7:39 pm-12:20 am

1 stop6h 41m

Ontario

Sun 2/8

6:20 am-12:50 pm

1 stop28h 30m

$134

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Wed 2/4

7:00 am-2:12 pm

1 stop9h 12m

Ontario

Wed 2/11

8:10 am-3:44 pm

1 stop5h 34m

$150

Kansas CityOntario

MCI - ONT

MCIONT

Kansas City

Tue 4/7

2:38 pm-8:54 pm

1 stop8h 16m

Ontario

Tue 4/14

11:59 pm-8:52 am

1 stop6h 53m

$181

SpringfieldOntario

SGF - ONT

SGFONT

Springfield-Branson

Mon 2/2

9:42 pm-1:37 pm

1 stop17h 55m

Ontario

Thu 2/5

8:48 pm-8:52 pm

1 stop22h 04m

$255

SpringfieldOntario

SGF - ONT

SGFONT

Springfield-Branson

Fri 1/30

12:45 pm-6:45 pm

1 stop8h 00m

Ontario

Sun 2/1

3:09 pm-10:47 pm

1 stop5h 38m

$289

SpringfieldOntario

SGF - ONT

SGFONT

Springfield-Branson

Thu 1/22

6:00 am-11:31 am

1 stop7h 31m

Ontario

Tue 2/3

12:41 pm-9:46 pm

1 stop7h 05m

$314

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Fri 1/23

11:17 am-8:58 pm

2 stops11h 41m

Ontario

Sun 2/8

1:24 pm-8:33 pm

1 stop5h 09m

$334

SpringfieldOntario

SGF - ONT

SGFONT

Springfield-Branson

Thu 1/22

5:03 pm-8:58 pm

1 stop5h 55m

Ontario

Mon 1/26

5:05 am-12:46 pm

1 stop5h 41m

$339

SpringfieldOntario

SGF - ONT

SGFONT

Springfield-Branson

Thu 1/22

6:00 am-11:31 am

1 stop7h 31m

Ontario

Mon 2/2

12:41 pm-9:46 pm

1 stop7h 05m

$359

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Missouri 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, November is the cheapest month to fly from Missouri to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $292. If you aren’t able to travel during the month of November, then book flights to Ontario from Missouri during August instead. Flights to Ontario in August, while not as cheap as those in November, still average around $301.

Can stopping save me money on Missouri to Ontario flights?

You could potentially save up to 71% on your flight if you consider stops on a Missouri to Ontario flight.

Cheap Missouri to Ontario flight deals and tips

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

Fastest flight time

5h 12m

Direct flights

None
The fastest flight from Missouri to Ontario takes 5h 12m
There are no direct flights from Missouri to Ontario. There are no popular flight routes from Missouri to Ontario.
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to Ontario Airport.

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

    The travel and health documents required for your trip to Ontario 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 Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Missouri to Ontario

Compare and see reviews for airlines that fly from Missouri to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $75Free CancellationRating
5.7
3,062 reviews
Search Frontier flights
DeltaPriceFrom $171Free CancellationRating
7.9
8,025 reviews
Search Delta flights
American AirlinesPriceFrom $264Free CancellationRating
7.2
11,095 reviews
Search American Airlines flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
SouthwestPriceFrom $289Free CancellationRating
8.0
4,250 reviews
Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Missouri to Ontario for you.

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

All flight searches from Missouri to Ontario on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Missouri to Ontario?

Once you have performed a search for Missouri 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 Missouri to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Missouri to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 2/7
Sat 2/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States