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Cheap flights from Miami to Los Angeles from $63

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 2/5. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:20 am - 3:46 pmMIA-ONT
8h 26m1 stop
Frontier Logo
6:17 pm - 5:35 amONT-MIA
8h 18m1 stop
$177Frontier
Find Deal
Tue, Dec 30 - Tue, Dec 30
Frontier Logo
5:47 pm - 12:20 amMIA-ONT
9h 33m1 stop
Frontier Logo
7:00 am - 5:19 amONT-MIA
19h 19m1 stop
$182Frontier
Find Deal
Thu, Feb 5 - Wed, Feb 11
Frontier Logo
10:20 am - 3:46 pmMIA-ONT
8h 26m1 stop
Frontier Logo
6:00 pm - 5:35 amONT-MIA
8h 35m1 stop
$183Frontier
Find Deal
Tue, Dec 30 - Wed, Dec 31
Frontier Logo
10:20 am - 3:46 pmMIA-ONT
8h 26m1 stop
Frontier Logo
7:15 am - 5:12 pmONT-MIA
6h 57m1 stop
$203Frontier
Find Deal
Tue, Dec 30 - Wed, Jan 21
Frontier Logo
6:00 am - 2:25 pmMIA-ONT
11h 25m1 stop
Frontier Logo
6:20 pm - 2:03 pmONT-MIA
16h 43m1 stop
$207Frontier
Find Deal
Sat, Dec 13 - Mon, Dec 22
Frontier Logo
6:00 am - 2:25 pmMIA-ONT
11h 25m1 stop
Frontier Logo
6:20 pm - 2:03 pmONT-MIA
16h 43m1 stop
$208Frontier
Find Deal
Sat, Dec 13 - Mon, Dec 22
Frontier Logo
6:05 am - 11:59 pmMIA-ONT
20h 54m1 stop
Frontier Logo
6:00 pm - 5:35 amONT-MIA
8h 35m1 stop
$209Frontier
Find Deal
Thu, Dec 25 - Wed, Dec 31
Frontier Logo
3:11 pm - 11:14 pmMIA-ONT
11h 03m1 stop
Frontier Logo
7:15 am - 5:18 amONT-MIA
19h 03m1 stop
$216Frontier
Find Deal
Sat, Jan 10 - Wed, Jan 14
Frontier Logo
10:20 am - 3:46 pmMIA-ONT
8h 26m1 stop
Frontier Logo
8:32 am - 1:18 amONT-MIA
13h 46m1 stop
$217Frontier
Find Deal
Tue, Dec 30 - Sun, Jan 18
Frontier Logo
6:00 am - 2:25 pmMIA-ONT
11h 25m1 stop
Frontier Logo
3:20 pm - 5:19 amONT-MIA
10h 59m1 stop
$224Frontier
Find Deal
Sat, Dec 6 - Sat, Dec 13

Frontier flights from Miami to Ontario

Our best Frontier deals on Miami to Ontario flight tickets
Frontier
Dec 30
MIA10:20 amMiami
8h 26m
1 stop
ONT3:46 pmOntario
Dec 30
ONT6:17 pmOntario
8h 18m
1 stop
MIA5:35 amMiami
$177
Find similar
Frontier
Feb 5
MIA5:47 pmMiami
9h 33m
1 stop
ONT12:20 amOntario
Feb 11
ONT7:00 amOntario
19h 19m
1 stop
MIA5:19 amMiami
$182
Find similar
Frontier
Dec 30
MIA10:20 amMiami
8h 26m
1 stop
ONT3:46 pmOntario
Dec 31
ONT6:00 pmOntario
8h 35m
1 stop
MIA5:35 amMiami
$183
Find similar

Delta flights from Miami to Ontario

Our best Delta deals on Miami to Ontario flight tickets
Delta
Jan 8
MIA5:37 pmMiami
32h 14m
1 stop
ONT10:51 pmOntario
Jan 12
ONT3:30 pmOntario
21h 57m
1 stop
MIA4:27 pmMiami
$307
Find similar
Delta
Dec 5
MIA6:50 pmMiami
8h 08m
1 stop
ONT11:58 pmOntario
Dec 8
ONT10:25 pmOntario
8h 02m
1 stop
MIA9:27 amMiami
$377
Find similar
Delta
Nov 27
MIA2:07 pmMiami
8h 35m
1 stop
ONT7:42 pmOntario
Dec 1
ONT10:25 pmOntario
9h 56m
1 stop
MIA11:21 amMiami
$467
Find similar

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 November 24, 2025.
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

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 12/30

10:20 am-3:46 pm

1 stop8h 26m

Ontario

Tue 12/30

6:17 pm-5:35 am

1 stop8h 18m

$177

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 2/5

5:47 pm-12:20 am

1 stop9h 33m

Ontario

Wed 2/11

7:00 am-5:19 am

1 stop19h 19m

$182

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 12/30

10:20 am-3:46 pm

1 stop8h 26m

Ontario

Wed 12/31

6:00 pm-5:35 am

1 stop8h 35m

$183

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 12/30

10:20 am-3:46 pm

1 stop8h 26m

Ontario

Wed 1/21

7:15 am-5:12 pm

1 stop6h 57m

$203

MiamiOntario

MIA - ONT

MIAONT

Miami

Sat 12/13

6:00 am-2:25 pm

1 stop11h 25m

Ontario

Mon 12/22

6:20 pm-2:03 pm

1 stop16h 43m

$207

MiamiOntario

MIA - ONT

MIAONT

Miami

Sat 12/13

6:00 am-2:25 pm

1 stop11h 25m

Ontario

Mon 12/22

6:20 pm-2:03 pm

1 stop16h 43m

$208

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 12/25

6:05 am-11:59 pm

1 stop20h 54m

Ontario

Wed 12/31

6:00 pm-5:35 am

1 stop8h 35m

$209

MiamiOntario

MIA - ONT

MIAONT

Miami

Sat 1/10

3:11 pm-11:14 pm

1 stop11h 03m

Ontario

Wed 1/14

7:15 am-5:18 am

1 stop19h 03m

$216

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 12/30

10:20 am-3:46 pm

1 stop8h 26m

Ontario

Sun 1/18

8:32 am-1:18 am

1 stop13h 46m

$217

MiamiOntario

MIA - ONT

MIAONT

Miami

Sat 12/6

6:00 am-2:25 pm

1 stop11h 25m

Ontario

Sat 12/13

3:20 pm-5:19 am

1 stop10h 59m

$224

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 cheapest month to fly to Ontario?

In general, January 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 $333. If you aren’t able to travel during the month of January, then book flights to Ontario from Miami during August instead. Flights to Ontario in August, while not as cheap as those in January, still average around $336.

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 Thursday when prices can be found for as low as $286. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Miami to Ontario for around $499.

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

In the afternoon is the cheapest time of day to fly from Miami to Ontario when you can find flight prices for as low as $294. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $437 on average. Flights to Ontario from Miami at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Miami to Ontario flight prices changed over time?

As of November 2025, prices for Miami to Ontario flights are approximately 13% 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

Direct flights

None
There are no direct flights from Miami to Ontario. There are no popular flight routes from Miami to Ontario.
Search flight deals

  • How far is Miami to Ontario by plane?

    A flight from Miami to Ontario will travel around 2299.8 mi. 8h 09m 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
FrontierPriceFrom $170Free CancellationRating
5.8
3,096 reviews
Search Frontier flights
DeltaPriceFrom $253Free CancellationRating
7.9
7,998 reviews
Search Delta flights
American AirlinesPriceFrom $305Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
9,044 reviews
Search United Airlines 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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