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Cheap flights from Miami to Los Angeles from $83

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 10/28. 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
8:00 am - 7:01 pmMIA  Miami-ONT Ontario
14h 01m1 stop Houston George Bush Intcntl
Frontier Logo
11:45 am - 12:46 amONT  Ontario-MIA Miami
10h 01m1 stop Denver Intl
$168Frontier
Wed, Sep 2 - Thu, Sep 10
Frontier Logo
5:50 am - 10:30 amMIA  Miami-ONT Ontario
7h 40m1 stop Denver Intl
Frontier Logo
11:45 am - 12:46 amONT  Ontario-MIA Miami
10h 01m1 stop Denver Intl
$168Frontier
Tue, Sep 15 - Sat, Oct 3
Frontier Logo
5:50 am - 10:30 amMIA  Miami-ONT Ontario
7h 40m1 stop Denver Intl
Frontier Logo
11:45 am - 12:46 amONT  Ontario-MIA Miami
10h 01m1 stop Denver Intl
$168Frontier
Wed, Sep 16 - Sat, Oct 3
Delta Logo
7:00 am - 12:10 pmMIA  Miami-ONT Ontario
8h 10m1 stop Salt Lake City
Delta Logo
12:22 pm - 12:57 amONT  Ontario-MIA Miami
9h 35m1 stop Atlanta Hartsfield-Jackson
$267Delta
Thu, Dec 10 - Tue, Dec 15
Delta Logo
6:00 am - 11:27 amMIA  Miami-ONT Ontario
8h 27m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:00 pm - 12:52 amONT  Ontario-MIA Miami
9h 52m1 stop Atlanta Hartsfield-Jackson
$267Delta
Wed, Jan 6 - Sat, Jan 9
Delta Logo
7:00 am - 12:10 pmMIA  Miami-ONT Ontario
8h 10m1 stop Salt Lake City
Delta Logo
11:10 pm - 9:29 amONT  Ontario-MIA Miami
7h 19m1 stop Atlanta Hartsfield-Jackson
$267Delta
Thu, Dec 10 - Mon, Dec 14
Southwest Logo
6:40 am - 2:10 pmMIA  Miami-ONT Ontario
10h 30m1 stop Chicago Midway
Southwest Logo
9:30 pm - 11:25 amONT  Ontario-MIA Miami
10h 55m2 stops Las Vegas Harry Reid Intl Nashville Intl
$272Southwest
Thu, Oct 1 - Mon, Oct 5
Southwest Logo
6:40 pm - 11:50 pmMIA  Miami-ONT Ontario
8h 10m2 stops Dallas Love Field Phoenix Sky Harbor Intl
Southwest Logo
9:30 pm - 11:25 amONT  Ontario-MIA Miami
10h 55m2 stops Las Vegas Harry Reid Intl Nashville Intl
$277Southwest
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
5:00 am - 9:40 amMIA  Miami-ONT Ontario
7h 40m1 stop Dallas/Fort Worth
American Airlines Logo
12:57 pm - 10:33 pmONT  Ontario-MIA Miami
6h 36m1 stop Phoenix Sky Harbor Intl
$377American Airlines
Sat, Dec 5 - Sat, Jan 9
American Airlines Logo
10:50 am - 3:35 pmMIA  Miami-ONT Ontario
7h 45m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
12:57 pm - 10:33 pmONT  Ontario-MIA Miami
6h 36m1 stop Phoenix Sky Harbor Intl
$377American Airlines
Thu, Dec 3 - Sat, Jan 9

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Frontier flights from Miami to Ontario

Our best Frontier deals on Miami to Ontario flight tickets
Frontier
Sep 15
MIA5:50 amMiami
7h 40m
1 stop
ONT10:30 amOntario
Oct 3
ONT11:45 amOntario
10h 01m
1 stop
MIA12:46 amMiami
$168
Frontier
Sep 3
MIA6:00 amMiami
20h 50m
1 stop
ONT11:50 pmOntario
Sep 9
ONT11:45 amOntario
10h 01m
1 stop
MIA12:46 amMiami
$169
Frontier
Sep 12
MIA5:50 amMiami
20h 57m
1 stop
ONT11:47 pmOntario
Sep 19
ONT11:45 amOntario
10h 01m
1 stop
MIA12:46 amMiami
$173

Delta flights from Miami to Ontario

Our best Delta deals on Miami to Ontario flight tickets
Delta
Dec 8
MIA7:00 amMiami
8h 10m
1 stop
ONT12:10 pmOntario
Dec 15
ONT12:22 pmOntario
9h 35m
1 stop
MIA12:57 amMiami
$267
Delta
Aug 29
MIA6:00 amMiami
7h 42m
1 stop
ONT10:42 amOntario
Sep 8
ONT7:05 amOntario
7h 15m
1 stop
MIA5:20 pmMiami
$350
Delta
Aug 27
MIA6:00 amMiami
7h 42m
1 stop
ONT10:42 amOntario
Sep 8
ONT7:05 amOntario
9h 00m
1 stop
MIA7:05 pmMiami
$362

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 17, 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 Miami - ONT Ontario

MIAONT

Miami

Wed 9/2

8:00 am-7:01 pm

1 stop14h 01m

Ontario

Thu 9/10

11:45 am-12:46 am

1 stop10h 01m

$168

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Tue 9/15

5:50 am-10:30 am

1 stop7h 40m

Ontario

Sat 10/3

11:45 am-12:46 am

1 stop10h 01m

$168

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Wed 9/16

5:50 am-10:30 am

1 stop7h 40m

Ontario

Sat 10/3

11:45 am-12:46 am

1 stop10h 01m

$168

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Thu 12/10

7:00 am-12:10 pm

1 stop8h 10m

Ontario

Tue 12/15

12:22 pm-12:57 am

1 stop9h 35m

$267

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Wed 1/6

6:00 am-11:27 am

1 stop8h 27m

Ontario

Sat 1/9

12:00 pm-12:52 am

1 stop9h 52m

$267

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Thu 12/10

7:00 am-12:10 pm

1 stop8h 10m

Ontario

Mon 12/14

11:10 pm-9:29 am

1 stop7h 19m

$267

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Thu 10/1

6:40 am-2:10 pm

1 stop10h 30m

Ontario

Mon 10/5

9:30 pm-11:25 am

2 stops10h 55m

$272

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Thu 10/1

6:40 pm-11:50 pm

2 stops8h 10m

Ontario

Mon 10/5

9:30 pm-11:25 am

2 stops10h 55m

$277
Quickest round-trip

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Sat 12/5

5:00 am-9:40 am

1 stop7h 40m

Ontario

Sat 1/9

12:57 pm-10:33 pm

1 stop6h 36m

$377

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Thu 12/3

10:50 am-3:35 pm

1 stop7h 45m

Ontario

Sat 1/9

12:57 pm-10:33 pm

1 stop6h 36m

$377

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?

Prices are currently low for flights on this route.

Typical prices usually range from $294 to $382.
The lowest price recently found on this route was $168.

What is the cheapest month to fly to Ontario?

In general, June 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 $341. If you aren’t able to travel during the month of June, then book flights to Ontario from Miami during February instead. Flights to Ontario in February, while not as cheap as those in June, still average around $347.

How have Miami to Ontario flight prices changed over time?

As of August 2026, prices for Miami to Ontario flights are approximately 44% 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 24m

Direct flights

None
The fastest flight from Miami to Ontario takes 7h 24m
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 24m 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
11,947 reviews
Search American Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,217 reviews
Search Southwest flights
DeltaPriceFrom $341Free CancellationRating
7.8
8,502 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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