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Cheap flights from Miami 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 Miami to Los Angeles departing on 11/1. 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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Cheap round-trip flights

Frontier Logo
8:00 am - 6:35 pmMIA-ONT
13h 35m1 stop
Frontier Logo
12:28 pm - 2:36 pmONT-MIA
23h 08m1 stop
$157Frontier
Find Deal
Fri, Sep 12 - Fri, Sep 19
Frontier Logo
8:00 am - 6:35 pmMIA-ONT
13h 35m1 stop
Frontier Logo
12:28 pm - 2:36 pmONT-MIA
23h 08m1 stop
$158Frontier
Find Deal
Fri, Sep 19 - Fri, Sep 26
Frontier Logo
8:00 am - 6:35 pmMIA-ONT
13h 35m1 stop
Frontier Logo
8:59 pm - 12:44 amONT-MIA
24h 45m1 stop
$160Frontier
Find Deal
Fri, Sep 12 - Wed, Sep 17
Frontier Logo
6:00 am - 7:53 amMIA-ONT
28h 53m1 stop
Frontier Logo
12:28 pm - 2:31 pmONT-MIA
23h 03m1 stop
$161Frontier
Find Deal
Thu, Sep 25 - Sun, Sep 28
Logo
6:00 am - 7:54 pmMIA-ONT
16h 54m1 stop
Logo
10:28 pm - 1:00 pmONT-MIA
35h 32m2 stops
$251
Find Deal
Thu, Sep 11 - Mon, Sep 15
Logo
8:00 am - 6:35 pmMIA-ONT
13h 35m1 stop
Logo
6:00 am - 1:00 pmONT-MIA
28h 00m2 stops
$269
Find Deal
Fri, Sep 12 - Mon, Sep 15
American Airlines Logo
2:37 pm - 6:54 pmMIA-ONT
7h 17m1 stop
American Airlines Logo
6:10 am - 4:50 pmONT-MIA
7h 40m1 stop
$326American Airlines
Find Deal
Fri, Sep 19 - Fri, Sep 26
Delta Logo
6:00 am - 10:35 amMIA-ONT
7h 35m1 stop
Delta Logo
10:00 pm - 9:20 amONT-MIA
8h 20m1 stop
$327Delta
Find Deal
Tue, Sep 9 - Mon, Sep 15
Delta Logo
6:00 am - 10:35 amMIA-ONT
7h 35m1 stop
Delta Logo
10:00 pm - 11:30 amONT-MIA
10h 30m2 stops
$332Delta
Find Deal
Wed, Sep 10 - Sun, Sep 14
American Airlines Logo
5:15 am - 10:07 amMIA-ONT
7h 52m1 stop
American Airlines Logo
11:59 pm - 9:59 amONT-MIA
7h 00m1 stop
$339American Airlines
Find Deal
Thu, Oct 9 - Tue, Oct 14

Frontier flights from Miami to Ontario

Our best Frontier deals on Miami to Ontario flight tickets
Frontier
Sep 12
MIA8:00 amMiami
13h 35m
1 stop
ONT6:35 pmOntario
Sep 19
ONT12:28 pmOntario
23h 08m
1 stop
MIA2:36 pmMiami
$157
Find similar
Frontier
Sep 19
MIA8:00 amMiami
13h 35m
1 stop
ONT6:35 pmOntario
Sep 26
ONT12:28 pmOntario
23h 08m
1 stop
MIA2:36 pmMiami
$158
Find similar
Frontier
Sep 12
MIA8:00 amMiami
13h 35m
1 stop
ONT6:35 pmOntario
Sep 17
ONT8:59 pmOntario
24h 45m
1 stop
MIA12:44 amMiami
$160
Find similar

Delta flights from Miami to Ontario

Our best Delta deals on Miami to Ontario flight tickets
Delta
Sep 3
MIA6:00 amMiami
7h 35m
1 stop
ONT10:35 amOntario
Sep 4
ONT11:45 amOntario
9h 39m
1 stop
MIA12:24 amMiami
$297
Find similar
Delta
Sep 9
MIA6:00 amMiami
7h 35m
1 stop
ONT10:35 amOntario
Sep 15
ONT10:00 pmOntario
8h 20m
1 stop
MIA9:20 amMiami
$327
Find similar
Delta
Sep 10
MIA6:00 amMiami
7h 35m
1 stop
ONT10:35 amOntario
Sep 14
ONT10:00 pmOntario
10h 30m
2 stops
MIA11:30 amMiami
$332
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 August 28, 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

Fri 9/12

8:00 am-6:35 pm

1 stop13h 35m

Ontario

Fri 9/19

12:28 pm-2:36 pm

1 stop23h 08m

$157

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 9/19

8:00 am-6:35 pm

1 stop13h 35m

Ontario

Fri 9/26

12:28 pm-2:36 pm

1 stop23h 08m

$158

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 9/12

8:00 am-6:35 pm

1 stop13h 35m

Ontario

Wed 9/17

8:59 pm-12:44 am

1 stop24h 45m

$160

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 9/25

6:00 am-7:53 am

1 stop28h 53m

Ontario

Sun 9/28

12:28 pm-2:31 pm

1 stop23h 03m

$161

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 9/11

6:00 am-7:54 pm

1 stop16h 54m

Ontario

Mon 9/15

10:28 pm-1:00 pm

2 stops35h 32m

$251

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 9/12

8:00 am-6:35 pm

1 stop13h 35m

Ontario

Mon 9/15

6:00 am-1:00 pm

2 stops28h 00m

$269

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 9/19

2:37 pm-6:54 pm

1 stop7h 17m

Ontario

Fri 9/26

6:10 am-4:50 pm

1 stop7h 40m

$326

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 9/9

6:00 am-10:35 am

1 stop7h 35m

Ontario

Mon 9/15

10:00 pm-9:20 am

1 stop8h 20m

$327

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 9/10

6:00 am-10:35 am

1 stop7h 35m

Ontario

Sun 9/14

10:00 pm-11:30 am

2 stops10h 30m

$332

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 10/9

5:15 am-10:07 am

1 stop7h 52m

Ontario

Tue 10/14

11:59 pm-9:59 am

1 stop7h 00m

$339

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, September 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 $286. If you aren’t able to travel during the month of September, then book flights to Ontario from Miami during August instead. Flights to Ontario in August, while not as cheap as those in September, still average around $317.

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 August 2025, prices for Miami to Ontario flights are approximately 39% 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. 7h 13m 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
3,204 reviews
Search Frontier flights
DeltaPriceFrom $253Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
8,944 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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