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Cheap flights from Miami to Los Angeles from $78

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 5/19. 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
6:30 am - 10:05 am
MIA
-
ONT
30h 35m
1 stop
Frontier Logo
6:00 am - 5:38 am
ONT
-
MIA
20h 38m
1 stop
$160Frontier
Rabu, Mei 6 - Rabu, Mei 13
Frontier Logo
6:00 am - 7:35 am
MIA
-
ONT
28h 35m
1 stop
Frontier Logo
8:06 pm - 12:44 am
ONT
-
MIA
25h 38m
1 stop
$169Frontier
Khamis, Mei 7 - Ahad, Mei 10
Frontier Logo
6:00 am - 8:20 am
MIA
-
ONT
29h 20m
1 stop
Frontier Logo
8:06 pm - 12:44 am
ONT
-
MIA
25h 38m
1 stop
$172Frontier
Jumaat, Mei 15 - Jumaat, Mei 22
Frontier Logo
6:44 pm - 10:05 am
MIA
-
ONT
18h 21m
2 stops
Frontier Logo
6:00 am - 5:38 am
ONT
-
MIA
20h 38m
1 stop
$173Frontier
Selasa, Mei 12 - Selasa, Mei 19
Frontier Logo
8:42 am - 7:25 pm
MIA
-
ONT
13h 43m
1 stop
Frontier Logo
8:30 am - 7:57 pm
ONT
-
MIA
8h 27m
1 stop
$180Frontier
Jumaat, Mei 1 - Selasa, Mei 5
Frontier Logo
6:00 am - 7:35 am
MIA
-
ONT
28h 35m
1 stop
Frontier Logo
10:50 am - 5:38 am
ONT
-
MIA
15h 48m
1 stop
$185Frontier
Khamis, Mei 7 - Selasa, Mei 12
Frontier Logo
6:30 am - 10:05 am
MIA
-
ONT
30h 35m
1 stop
Frontier Logo
8:06 pm - 12:44 am
ONT
-
MIA
25h 38m
1 stop
$187Frontier
Sabtu, Mei 9 - Rabu, Mei 13
Frontier Logo
8:42 am - 7:25 pm
MIA
-
ONT
13h 43m
1 stop
Frontier Logo
6:00 am - 5:38 am
ONT
-
MIA
20h 38m
1 stop
$191Frontier
Jumaat, Mei 1 - Ahad, Mei 10
Frontier Logo
6:30 am - 11:49 pm
MIA
-
ONT
20h 19m
1 stop
Frontier Logo
10:50 am - 5:38 am
ONT
-
MIA
15h 48m
1 stop
$198Frontier
Sabtu, Mei 9 - Selasa, Mei 12
Frontier Logo
8:42 am - 8:25 pm
MIA
-
ONT
14h 43m
1 stop
Frontier Logo
5:33 pm - 5:05 am
ONT
-
MIA
8h 32m
1 stop
$200Frontier
Khamis, Apr 30 - Isnin, Mei 4

Frontier flights from Miami to Ontario

Our best Frontier deals on Miami to Ontario flight tickets
Frontier
May 6
MIA6:30 amMiami
30h 35m
1 stop
ONT10:05 amOntario
May 13
ONT6:00 amOntario
20h 38m
1 stop
MIA5:38 amMiami
$160
Frontier
May 7
MIA6:00 amMiami
28h 35m
1 stop
ONT7:35 amOntario
May 10
ONT8:06 pmOntario
25h 38m
1 stop
MIA12:44 amMiami
$169
Frontier
May 15
MIA6:00 amMiami
29h 20m
1 stop
ONT8:20 amOntario
May 22
ONT8:06 pmOntario
25h 38m
1 stop
MIA12:44 amMiami
$172

Delta flights from Miami to Ontario

Our best Delta deals on Miami to Ontario flight tickets
Delta
Apr 28
MIA12:12 pmMiami
9h 21m
1 stop
ONT6:33 pmOntario
May 6
ONT5:05 pmOntario
9h 22m
1 stop
MIA5:27 amMiami
$327
Delta
Apr 28
MIA3:18 pmMiami
11h 26m
2 stops
ONT11:44 pmOntario
May 5
ONT5:05 pmOntario
9h 22m
1 stop
MIA5:27 amMiami
$332

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 April 18, 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

Rabu 5/6

6:30 am-10:05 am

1 stop30h 35m

Ontario

Rabu 5/13

6:00 am-5:38 am

1 stop20h 38m

$160

MiamiOntario

MIA - ONT

MIAONT

Miami

Khamis 5/7

6:00 am-7:35 am

1 stop28h 35m

Ontario

Ahad 5/10

8:06 pm-12:44 am

1 stop25h 38m

$169

MiamiOntario

MIA - ONT

MIAONT

Miami

Jumaat 5/15

6:00 am-8:20 am

1 stop29h 20m

Ontario

Jumaat 5/22

8:06 pm-12:44 am

1 stop25h 38m

$172

MiamiOntario

MIA - ONT

MIAONT

Miami

Selasa 5/12

6:44 pm-10:05 am

2 stops18h 21m

Ontario

Selasa 5/19

6:00 am-5:38 am

1 stop20h 38m

$173
Quickest round-trip

MiamiOntario

MIA - ONT

MIAONT

Miami

Jumaat 5/1

8:42 am-7:25 pm

1 stop13h 43m

Ontario

Selasa 5/5

8:30 am-7:57 pm

1 stop8h 27m

$180

MiamiOntario

MIA - ONT

MIAONT

Miami

Khamis 5/7

6:00 am-7:35 am

1 stop28h 35m

Ontario

Selasa 5/12

10:50 am-5:38 am

1 stop15h 48m

$185

MiamiOntario

MIA - ONT

MIAONT

Miami

Sabtu 5/9

6:30 am-10:05 am

1 stop30h 35m

Ontario

Rabu 5/13

8:06 pm-12:44 am

1 stop25h 38m

$187

MiamiOntario

MIA - ONT

MIAONT

Miami

Jumaat 5/1

8:42 am-7:25 pm

1 stop13h 43m

Ontario

Ahad 5/10

6:00 am-5:38 am

1 stop20h 38m

$191

MiamiOntario

MIA - ONT

MIAONT

Miami

Sabtu 5/9

6:30 am-11:49 pm

1 stop20h 19m

Ontario

Selasa 5/12

10:50 am-5:38 am

1 stop15h 48m

$198

MiamiOntario

MIA - ONT

MIAONT

Miami

Khamis 4/30

8:42 am-8:25 pm

1 stop14h 43m

Ontario

Isnin 5/4

5:33 pm-5:05 am

1 stop8h 32m

$200

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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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 April 2026, prices for Miami to Ontario flights are approximately 1% 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 32m

Direct flights

None
The fastest flight from Miami to Ontario takes 7h 32m
There are no direct flights from Miami to Ontario. There are no popular flight routes from Miami to Ontario.
Search flight deals

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 32m 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
11,604 reviews
Search American Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,330 reviews
Search Southwest flights
United AirlinesPriceFrom $336Free CancellationRating
7.4
9,605 reviews
Search United Airlines flights
DeltaPriceFrom $365Free CancellationRating
7.9
8,424 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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1 adult
Isnin 5/18
Isnin 5/25
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