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Cheap flights from Miami to Los Angeles from $100

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
5:50 am - 11:51 pmMIA  Miami-ONT Ontario
21h 01m1 stop Denver Intl
Frontier Logo
11:52 am - 12:44 amONT  Ontario-MIA Miami
9h 52m1 stop Denver Intl
$212Frontier
Tue, Nov 10 - Wed, Nov 18
Frontier Logo
5:50 am - 10:29 amMIA  Miami-ONT Ontario
7h 39m1 stop Denver Intl
Frontier Logo
11:52 am - 12:44 amONT  Ontario-MIA Miami
9h 52m1 stop Denver Intl
$220Frontier
Tue, Oct 13 - Tue, Nov 10
United Airlines Logo
5:00 pm - 9:59 pmMIA  Miami-ONT Ontario
7h 59m1 stop Houston George Bush Intcntl
United Airlines Logo
6:00 am - 6:20 pmONT  Ontario-MIA Miami
9h 20m1 stop Houston George Bush Intcntl
$279United Airlines
Sat, Oct 24 - Sat, Oct 31
American Airlines Logo
11:10 am - 3:16 pmMIA  Miami-ONT Ontario
7h 06m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
2:22 pm - 12:03 amONT  Ontario-MIA Miami
6h 41m1 stop Dallas/Fort Worth
$291American Airlines
Wed, Oct 7 - Sat, Oct 10
Delta Logo
6:00 am - 11:08 amMIA  Miami-ONT Ontario
8h 08m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:20 pm - 12:58 amONT  Ontario-MIA Miami
9h 38m1 stop Atlanta Hartsfield-Jackson
$291Delta
Tue, Dec 8 - 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 - 10:45 pmONT  Ontario-MIA Miami
7h 45m1 stop Atlanta Hartsfield-Jackson
$304Delta
Thu, Jan 7 - Tue, Jan 19
American Airlines Logo
5:45 pm - 11:52 pmMIA  Miami-ONT Ontario
9h 07m1 stop Dallas/Fort Worth
American Airlines Logo
1:05 pm - 11:54 pmONT  Ontario-MIA Miami
7h 49m1 stop Phoenix Sky Harbor Intl
$323American Airlines
Fri, Oct 9 - Tue, Oct 13
Multiple Airlines Logo
6:18 pm - 4:02 pmMIA  Miami-ONT Ontario
24h 44m2 stops Seattle/Tacoma Intl Boise Air Term. Gowen Fld
Multiple Airlines Logo
11:52 am - 12:44 amONT  Ontario-MIA Miami
9h 52m1 stop Denver Intl
$328Multiple Airlines
Fri, Oct 23 - Sat, Oct 31
Southwest Logo
4:45 pm - 9:45 pmMIA  Miami-ONT Ontario
8h 00m1 stop Denver Intl
Southwest Logo
5:20 am - 4:45 pmONT  Ontario-MIA Miami
8h 25m1 stop Chicago Midway
$378Southwest
Wed, Feb 3 - Sun, Feb 7
Southwest Logo
6:20 am - 2:20 pmMIA  Miami-ONT Ontario
11h 00m2 stops Dallas Love Field Las Vegas Harry Reid Intl
Southwest Logo
1:20 pm - 10:20 pmONT  Ontario-MIA Miami
6h 00m1 stop Houston Hobby
$384Southwest
Wed, Feb 3 - Sun, Feb 7

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Frontier flights from Miami to Ontario

Our best Frontier deals on Miami to Ontario flight tickets
Frontier
Nov 10
MIA5:50 amMiami
21h 01m
1 stop
ONT11:51 pmOntario
Nov 18
ONT11:52 amOntario
9h 52m
1 stop
MIA12:44 amMiami
$212
Frontier
Oct 24
MIA5:50 amMiami
7h 39m
1 stop
ONT10:29 amOntario
Oct 31
ONT11:52 amOntario
9h 52m
1 stop
MIA12:44 amMiami
$220
Frontier
Oct 28
MIA5:50 amMiami
21h 01m
1 stop
ONT11:51 pmOntario
Nov 7
ONT11:52 amOntario
9h 52m
1 stop
MIA12:44 amMiami
$230

United Airlines flights from Miami to Ontario

Our best United Airlines deals on Miami to Ontario flight tickets
United Airlines
Oct 24
MIA5:00 pmMiami
7h 59m
1 stop
ONT9:59 pmOntario
Oct 31
ONT6:00 amOntario
9h 20m
1 stop
MIA6:20 pmMiami
$279
United Airlines
Oct 5
MIA4:41 pmMiami
9h 10m
1 stop
ONT10:51 pmOntario
Oct 8
ONT9:25 amOntario
8h 28m
1 stop
MIA8:53 pmMiami
$427

momondo Fare Finder

 
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

Tue 11/10

5:50 am-11:51 pm

1 stop21h 01m

Ontario

Wed 11/18

11:52 am-12:44 am

1 stop9h 52m

$212

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Tue 10/13

5:50 am-10:29 am

1 stop7h 39m

Ontario

Tue 11/10

11:52 am-12:44 am

1 stop9h 52m

$220

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Sat 10/24

5:00 pm-9:59 pm

1 stop7h 59m

Ontario

Sat 10/31

6:00 am-6:20 pm

1 stop9h 20m

$279
Quickest round-trip

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Wed 10/7

11:10 am-3:16 pm

1 stop7h 06m

Ontario

Sat 10/10

2:22 pm-12:03 am

1 stop6h 41m

$291

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Tue 12/8

6:00 am-11:08 am

1 stop8h 08m

Ontario

Tue 12/15

12:20 pm-12:58 am

1 stop9h 38m

$291

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Thu 1/7

6:00 am-11:27 am

1 stop8h 27m

Ontario

Tue 1/19

12:00 pm-10:45 pm

1 stop7h 45m

$304

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Fri 10/9

5:45 pm-11:52 pm

1 stop9h 07m

Ontario

Tue 10/13

1:05 pm-11:54 pm

1 stop7h 49m

$323

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Fri 10/23

6:18 pm-4:02 pm

2 stops24h 44m

Ontario

Sat 10/31

11:52 am-12:44 am

1 stop9h 52m

$328

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Wed 2/3

4:45 pm-9:45 pm

1 stop8h 00m

Ontario

Sun 2/7

5:20 am-4:45 pm

1 stop8h 25m

$378

MiamiOntario

MIA Miami - ONT Ontario

MIAONT

Miami

Wed 2/3

6:20 am-2:20 pm

2 stops11h 00m

Ontario

Sun 2/7

1:20 pm-10:20 pm

1 stop6h 00m

$384

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

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 $298 to $421.
The lowest price recently found on this route was $212.

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 September 2026, prices for Miami to Ontario flights are approximately 80% 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

Best Price Found

$100

Fastest flight time

7h 40m

Direct flights

None
The best one-way flight to Ontario from Miami in the past 72 hours is $100. The best round-trip flight deal from Miami to Ontario found on momondo in the last 72 hours is $212.
The fastest flight from Miami to Ontario takes 7h 40m
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 40m 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 $165Free CancellationRating
5.6
2,588 reviews
Search Frontier flights
American AirlinesPriceFrom $306Free CancellationRating
7.0
12,072 reviews
Search American Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,192 reviews
Search Southwest flights
DeltaPriceFrom $341Free CancellationRating
7.8
8,591 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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