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Cheap flights from Miami to Los Angeles from $124

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 11/14. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 7:32 am
MIA
-
ONT
28h 02m
1 stop
Frontier Logo
9:36 am - 12:21 am
ONT
-
MIA
11h 45m
1 stop
$251Frontier
Wed, Aug 5 - Mon, Aug 17
Frontier Logo
10:15 pm - 8:03 am
MIA
-
ONT
12h 48m
1 stop
Frontier Logo
9:36 am - 12:21 am
ONT
-
MIA
11h 45m
1 stop
$256Frontier
Wed, Jul 29 - Sat, Aug 8
Frontier Logo
9:35 am - 5:52 pm
MIA
-
ONT
11h 17m
1 stop
Frontier Logo
5:43 pm - 12:16 am
ONT
-
MIA
27h 33m
1 stop
$258Frontier
Wed, Aug 19 - Tue, Aug 25
Delta Logo
7:15 am - 12:16 pm
MIA
-
ONT
8h 01m
1 stop
Delta Logo
5:13 pm - 5:53 am
ONT
-
MIA
9h 40m
1 stop
$261Delta
Tue, Aug 25 - Wed, Sep 23
Frontier Logo
10:15 pm - 8:03 am
MIA
-
ONT
12h 48m
1 stop
Frontier Logo
3:40 pm - 6:30 am
ONT
-
MIA
11h 50m
1 stop
$264Frontier
Tue, Jul 14 - Sat, Jul 18
Frontier Logo
6:00 am - 11:50 pm
MIA
-
ONT
20h 50m
1 stop
Frontier Logo
6:00 am - 5:51 am
ONT
-
MIA
20h 51m
1 stop
$266Frontier
Sat, Jul 18 - Tue, Jul 21
Frontier Logo
9:35 am - 5:52 pm
MIA
-
ONT
11h 17m
1 stop
Frontier Logo
2:55 pm - 5:48 am
ONT
-
MIA
11h 53m
1 stop
$268Frontier
Fri, Sep 4 - Wed, Sep 9
Frontier Logo
10:15 pm - 8:03 am
MIA
-
ONT
12h 48m
1 stop
Frontier Logo
9:32 am - 12:31 am
ONT
-
MIA
11h 59m
1 stop
$271Frontier
Sun, Jul 5 - Sat, Jul 11
Frontier Logo
10:15 pm - 8:03 am
MIA
-
ONT
12h 48m
1 stop
Frontier Logo
6:00 am - 5:51 am
ONT
-
MIA
20h 51m
1 stop
$273Frontier
Wed, Jul 8 - Sun, Jul 26
Frontier Logo
9:35 am - 5:52 pm
MIA
-
ONT
11h 17m
1 stop
Frontier Logo
10:50 am - 5:54 am
ONT
-
MIA
16h 04m
1 stop
$274Frontier
Wed, Aug 19 - Tue, Aug 25

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Frontier flights from Miami to Ontario

Our best Frontier deals on Miami to Ontario flight tickets
Frontier
Aug 5
MIA6:30 amMiami
28h 02m
1 stop
ONT7:32 amOntario
Aug 17
ONT9:36 amOntario
11h 45m
1 stop
MIA12:21 amMiami
$251
Frontier
Jul 29
MIA10:15 pmMiami
12h 48m
1 stop
ONT8:03 amOntario
Aug 8
ONT9:36 amOntario
11h 45m
1 stop
MIA12:21 amMiami
$256
Frontier
Aug 19
MIA9:35 amMiami
11h 17m
1 stop
ONT5:52 pmOntario
Aug 25
ONT5:43 pmOntario
27h 33m
1 stop
MIA12:16 amMiami
$258

Delta flights from Miami to Ontario

Our best Delta deals on Miami to Ontario flight tickets
Delta
Aug 25
MIA7:15 amMiami
8h 01m
1 stop
ONT12:16 pmOntario
Sep 22
ONT11:59 amOntario
9h 56m
1 stop
MIA12:55 amMiami
$261
Delta
Aug 19
MIA7:15 amMiami
8h 01m
1 stop
ONT12:16 pmOntario
Sep 23
ONT5:13 pmOntario
9h 40m
1 stop
MIA5:53 amMiami
$287
Delta
Aug 19
MIA7:15 amMiami
8h 01m
1 stop
ONT12:16 pmOntario
Sep 19
ONT7:05 amOntario
9h 00m
1 stop
MIA7:05 pmMiami
$301

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 June 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 8/5

6:30 am-7:32 am

1 stop28h 02m

Ontario

Mon 8/17

9:36 am-12:21 am

1 stop11h 45m

$251

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/29

10:15 pm-8:03 am

1 stop12h 48m

Ontario

Sat 8/8

9:36 am-12:21 am

1 stop11h 45m

$256

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 8/19

9:35 am-5:52 pm

1 stop11h 17m

Ontario

Tue 8/25

5:43 pm-12:16 am

1 stop27h 33m

$258
Quickest round-trip

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 8/25

7:15 am-12:16 pm

1 stop8h 01m

Ontario

Wed 9/23

5:13 pm-5:53 am

1 stop9h 40m

$261

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 7/14

10:15 pm-8:03 am

1 stop12h 48m

Ontario

Sat 7/18

3:40 pm-6:30 am

1 stop11h 50m

$264

MiamiOntario

MIA - ONT

MIAONT

Miami

Sat 7/18

6:00 am-11:50 pm

1 stop20h 50m

Ontario

Tue 7/21

6:00 am-5:51 am

1 stop20h 51m

$266

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 9/4

9:35 am-5:52 pm

1 stop11h 17m

Ontario

Wed 9/9

2:55 pm-5:48 am

1 stop11h 53m

$268

MiamiOntario

MIA - ONT

MIAONT

Miami

Sun 7/5

10:15 pm-8:03 am

1 stop12h 48m

Ontario

Sat 7/11

9:32 am-12:31 am

1 stop11h 59m

$271

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/8

10:15 pm-8:03 am

1 stop12h 48m

Ontario

Sun 7/26

6:00 am-5:51 am

1 stop20h 51m

$273

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 8/19

9:35 am-5:52 pm

1 stop11h 17m

Ontario

Tue 8/25

10:50 am-5:54 am

1 stop16h 04m

$274

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 July instead. Flights to Ontario in July, while not as cheap as those in August, still average around $342.

How have Miami to Ontario flight prices changed over time?

As of June 2026, prices for Miami to Ontario flights are approximately 50% 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 47m

Direct flights

None
The fastest flight from Miami to Ontario takes 7h 47m
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 47m 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 $305Free CancellationRating
7.1
11,635 reviews
Search American Airlines flights
SouthwestPriceFrom $326Free CancellationRating
7.9
4,235 reviews
Search Southwest flights
DeltaPriceFrom $341Free CancellationRating
7.9
8,395 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

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