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Cheap flights from Miami to Los Angeles from $110

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Miami to Los Angeles departing on 5/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Miami to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:06 pm - 3:07 pm
MIA
-
ONT
20h 01m
1 stop
Frontier Logo
6:00 am - 5:51 am
ONT
-
MIA
20h 51m
1 stop
$210Frontier
Wed, Jul 22 - Tue, Jul 28
Frontier Logo
10:06 pm - 3:07 pm
MIA
-
ONT
20h 01m
1 stop
Frontier Logo
6:00 am - 5:51 am
ONT
-
MIA
20h 51m
1 stop
$219Frontier
Wed, Jul 22 - Tue, Jul 28
Frontier Logo
8:18 pm - 7:48 pm
MIA
-
ONT
26h 30m
1 stop
Frontier Logo
6:00 am - 5:54 am
ONT
-
MIA
20h 54m
1 stop
$220Frontier
Wed, Aug 19 - Tue, Aug 25
Frontier Logo
10:06 pm - 7:53 pm
MIA
-
ONT
24h 47m
1 stop
Frontier Logo
1:27 pm - 7:16 am
ONT
-
MIA
14h 49m
1 stop
$222Frontier
Tue, Aug 11 - Tue, Aug 18
Frontier Logo
7:00 am - 4:48 pm
MIA
-
ONT
12h 48m
1 stop
Frontier Logo
3:40 pm - 7:26 am
ONT
-
MIA
12h 46m
1 stop
$224Frontier
Wed, Jul 1 - Tue, Jul 7
Frontier Logo
6:50 am - 4:30 pm
MIA
-
ONT
12h 40m
1 stop
Frontier Logo
3:40 pm - 7:26 am
ONT
-
MIA
12h 46m
1 stop
$230Frontier
Tue, Jul 21 - Tue, Aug 4
Frontier Logo
10:06 pm - 7:53 pm
MIA
-
ONT
24h 47m
1 stop
Frontier Logo
3:40 pm - 7:26 am
ONT
-
MIA
12h 46m
1 stop
$233Frontier
Sat, Aug 1 - Tue, Aug 4
Frontier Logo
8:18 pm - 7:48 pm
MIA
-
ONT
26h 30m
1 stop
Frontier Logo
3:34 pm - 7:16 am
ONT
-
MIA
12h 42m
1 stop
$236Frontier
Wed, Aug 19 - Mon, Aug 24
Frontier Logo
9:35 am - 5:52 pm
MIA
-
ONT
11h 17m
1 stop
Frontier Logo
3:34 pm - 7:16 am
ONT
-
MIA
12h 42m
1 stop
$238Frontier
Thu, Aug 27 - Mon, Aug 31
Frontier Logo
10:06 pm - 3:07 pm
MIA
-
ONT
20h 01m
1 stop
Frontier Logo
6:00 am - 5:51 am
ONT
-
MIA
20h 51m
1 stop
$239Frontier
Wed, Jul 22 - Wed, Jul 29

Frontier flights from Miami to Ontario

Our best Frontier deals on Miami to Ontario flight tickets
Frontier
Jul 22
MIA10:06 pmMiami
20h 01m
1 stop
ONT3:07 pmOntario
Jul 28
ONT6:00 amOntario
20h 51m
1 stop
MIA5:51 amMiami
$210
Frontier
Jul 22
MIA10:06 pmMiami
20h 01m
1 stop
ONT3:07 pmOntario
Jul 28
ONT6:00 amOntario
20h 51m
1 stop
MIA5:51 amMiami
$219
Frontier
Aug 19
MIA8:18 pmMiami
26h 30m
1 stop
ONT7:48 pmOntario
Aug 25
ONT6:00 amOntario
20h 54m
1 stop
MIA5:54 amMiami
$220

momondo Fare Finder

 
Customize your flight search to find flights from Miami 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 May 10, 2026.
Use the filters below to find and compare flights from Miami to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/22

10:06 pm-3:07 pm

1 stop20h 01m

Ontario

Tue 7/28

6:00 am-5:51 am

1 stop20h 51m

$210

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/22

10:06 pm-3:07 pm

1 stop20h 01m

Ontario

Tue 7/28

6:00 am-5:51 am

1 stop20h 51m

$219

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 8/19

8:18 pm-7:48 pm

1 stop26h 30m

Ontario

Tue 8/25

6:00 am-5:54 am

1 stop20h 54m

$220

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 8/11

10:06 pm-7:53 pm

1 stop24h 47m

Ontario

Tue 8/18

1:27 pm-7:16 am

1 stop14h 49m

$222

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/1

7:00 am-4:48 pm

1 stop12h 48m

Ontario

Tue 7/7

3:40 pm-7:26 am

1 stop12h 46m

$224

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 7/21

6:50 am-4:30 pm

1 stop12h 40m

Ontario

Tue 8/4

3:40 pm-7:26 am

1 stop12h 46m

$230

MiamiOntario

MIA - ONT

MIAONT

Miami

Sat 8/1

10:06 pm-7:53 pm

1 stop24h 47m

Ontario

Tue 8/4

3:40 pm-7:26 am

1 stop12h 46m

$233

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 8/19

8:18 pm-7:48 pm

1 stop26h 30m

Ontario

Mon 8/24

3:34 pm-7:16 am

1 stop12h 42m

$236
Quickest round-trip

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 8/27

9:35 am-5:52 pm

1 stop11h 17m

Ontario

Mon 8/31

3:34 pm-7:16 am

1 stop12h 42m

$238

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/22

10:06 pm-3:07 pm

1 stop20h 01m

Ontario

Wed 7/29

6:00 am-5:51 am

1 stop20h 51m

$239

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 Miami 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 Miami and Ontario?

What is the cheapest month to fly to Ontario?

In general, August is the cheapest month to fly from Miami to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $336. If you aren’t able to travel during the month of August, then book flights to Ontario from Miami during February instead. Flights to Ontario in February, while not as cheap as those in August, still average around $347.

How have Miami to Ontario flight prices changed over time?

As of May 2026, prices for Miami to Ontario flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from Miami to Ontario

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

Cheap Miami to Ontario (MIA to ONT) flight deals and tips

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

Fastest flight time

7h 50m

Direct flights

None
The fastest flight from Miami to Ontario takes 7h 50m
There are no direct flights from Miami to Ontario. There are no popular flight routes from Miami to Ontario.
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Frequently asked questions about flying from Miami to Ontario

  • How far is Miami to Ontario by plane?

    A flight from Miami to Ontario will travel around 2299.8 mi. 7h 50m is a normal flight duration for this route.

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

    Prices for flights from Miami Airport to Ontario Airport refresh daily.

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

  • How old do you have to be to fly from Miami 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 Miami Airport 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.

  • What is the most popular airline from Miami to Ontario?

Best airlines flying from Miami to Ontario

Compare and see reviews for airlines that fly from Miami to Ontario with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $298Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,304 reviews
Search Southwest flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
DeltaPriceFrom $365Free CancellationRating
7.9
8,455 reviews
Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Miami.

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

Flights from Miami to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Miami to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Ontario from Miami. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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.
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