Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Miami from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Miami departing on 5/13. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Miami

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 5:38 am
ONT
-
MIA
20h 38m
1 stop
Frontier Logo
6:30 am - 11:49 pm
MIA
-
ONT
20h 19m
1 stop
$235Frontier
Sun, May 10 - Tue, May 19
Frontier Logo
6:00 am - 5:38 am
ONT
-
MIA
20h 38m
1 stop
Frontier Logo
6:30 am - 11:49 pm
MIA
-
ONT
20h 19m
1 stop
$236Frontier
Sun, May 10 - Tue, May 19
Frontier Logo
8:06 pm - 12:44 am
ONT
-
MIA
25h 38m
1 stop
Frontier Logo
6:30 am - 10:05 am
MIA
-
ONT
30h 35m
1 stop
$237Frontier
Sun, May 10 - Tue, May 19
Frontier Logo
6:00 am - 5:38 am
ONT
-
MIA
20h 38m
1 stop
Frontier Logo
8:03 pm - 8:04 am
MIA
-
ONT
15h 01m
1 stop
$238Frontier
Wed, May 13 - Wed, May 27
Frontier Logo
8:06 pm - 12:44 am
ONT
-
MIA
25h 38m
1 stop
Frontier Logo
6:50 am - 4:48 pm
MIA
-
ONT
12h 58m
1 stop
$240Frontier
Sun, May 31 - Sat, Jun 13
Frontier Logo
6:00 am - 5:51 am
ONT
-
MIA
20h 51m
1 stop
Frontier Logo
10:06 pm - 7:53 pm
MIA
-
ONT
24h 47m
1 stop
$241Frontier
Tue, Jul 7 - Sat, Jul 11
Frontier Logo
8:06 pm - 12:44 am
ONT
-
MIA
25h 38m
1 stop
Frontier Logo
6:00 am - 7:35 am
MIA
-
ONT
28h 35m
1 stop
$242Frontier
Thu, May 14 - Sun, May 17
Frontier Logo
6:00 am - 5:38 am
ONT
-
MIA
20h 38m
1 stop
Frontier Logo
6:30 am - 10:05 am
MIA
-
ONT
30h 35m
1 stop
$243Frontier
Mon, May 11 - Tue, May 19
Frontier Logo
8:43 am - 11:27 pm
ONT
-
MIA
11h 44m
1 stop
Frontier Logo
6:50 am - 4:48 pm
MIA
-
ONT
12h 58m
1 stop
$244Frontier
Sat, Jun 6 - Sat, Jun 13
Frontier Logo
8:06 pm - 12:44 am
ONT
-
MIA
25h 38m
1 stop
Frontier Logo
9:15 am - 7:08 am
MIA
-
ONT
24h 53m
1 stop
$246Frontier
Thu, May 28 - Thu, Jun 4

Frontier flights from Ontario to Miami

Our best Frontier deals on Ontario to Miami flight tickets
Frontier
May 10
ONT6:00 amOntario
20h 38m
1 stop
MIA5:38 amMiami
May 19
MIA6:30 amMiami
20h 19m
1 stop
ONT11:49 pmOntario
$235
Frontier
May 10
ONT6:00 amOntario
20h 38m
1 stop
MIA5:38 amMiami
May 19
MIA6:30 amMiami
20h 19m
1 stop
ONT11:49 pmOntario
$236
Frontier
May 10
ONT8:06 pmOntario
25h 38m
1 stop
MIA12:44 amMiami
May 19
MIA6:30 amMiami
30h 35m
1 stop
ONT10:05 amOntario
$237

Delta flights from Ontario to Miami

Our best Delta deals on Ontario to Miami flight tickets
Delta
May 12
ONT12:08 pmOntario
9h 35m
1 stop
MIA12:43 amMiami
May 27
MIA7:05 amMiami
12h 12m
2 stops
ONT4:17 pmOntario
$262
Delta
May 12
ONT4:57 pmOntario
9h 48m
1 stop
MIA5:45 amMiami
May 29
MIA7:00 amMiami
8h 19m
1 stop
ONT12:19 pmOntario
$278
Delta
May 13
ONT9:50 amOntario
10h 01m
2 stops
MIA10:51 pmMiami
May 29
MIA7:00 amMiami
8h 19m
1 stop
ONT12:19 pmOntario
$283

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Miami 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 28, 2026.
Use the filters below to find and compare flights from Ontario to Miami that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sun 5/10

6:00 am-5:38 am

1 stop20h 38m

Miami

Tue 5/19

6:30 am-11:49 pm

1 stop20h 19m

$235

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sun 5/10

6:00 am-5:38 am

1 stop20h 38m

Miami

Tue 5/19

6:30 am-11:49 pm

1 stop20h 19m

$236

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sun 5/10

8:06 pm-12:44 am

1 stop25h 38m

Miami

Tue 5/19

6:30 am-10:05 am

1 stop30h 35m

$237

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Wed 5/13

6:00 am-5:38 am

1 stop20h 38m

Miami

Wed 5/27

8:03 pm-8:04 am

1 stop15h 01m

$238

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sun 5/31

8:06 pm-12:44 am

1 stop25h 38m

Miami

Sat 6/13

6:50 am-4:48 pm

1 stop12h 58m

$240

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Tue 7/7

6:00 am-5:51 am

1 stop20h 51m

Miami

Sat 7/11

10:06 pm-7:53 pm

1 stop24h 47m

$241

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Thu 5/14

8:06 pm-12:44 am

1 stop25h 38m

Miami

Sun 5/17

6:00 am-7:35 am

1 stop28h 35m

$242

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Mon 5/11

6:00 am-5:38 am

1 stop20h 38m

Miami

Tue 5/19

6:30 am-10:05 am

1 stop30h 35m

$243
Quickest round-trip

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sat 6/6

8:43 am-11:27 pm

1 stop11h 44m

Miami

Sat 6/13

6:50 am-4:48 pm

1 stop12h 58m

$244

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Thu 5/28

8:06 pm-12:44 am

1 stop25h 38m

Miami

Thu 6/4

9:15 am-7:08 am

1 stop24h 53m

$246

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Miami from

How to get the cheapest flight ticket from Ontario to Miami

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 Ontario and Miami?

What is the cheapest month to fly to Miami?

The month of September is, on average, the cheapest month to fly to Miami from Ontario, with most prices found around $336. If you are unable to visit Miami during the month of September, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $356.

What is the cheapest day to depart on your flight to Miami?

The cheapest day to depart from Ontario to Miami is on a Saturday when prices can be found for as low as $532. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Miami on Sunday is $590.

What is the cheapest time of day to depart on your flight to Miami?

In the afternoon is the cheapest time of day to fly from Ontario to Miami when you can find flight prices for as low as $484. Flying to Miami in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $575. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight from Ontario to Miami?

You are more likely to see cheaper flights to Miami from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Miami for around $401 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Miami from Ontario for as low as $303 on momondo.

How have Ontario to Miami flight prices changed over time?

As of April 2026, prices for Ontario to Miami flights are approximately 46% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Miami

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Miami according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Miami (ONT to MIA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Miami

Fastest flight time

7h 12m

Direct flights

None
The fastest flight from Ontario to Miami takes 7h 12m
There are no direct flights from Ontario to Miami. There are no popular flight routes from Ontario to Miami.
Search flight deals

Frequently asked questions about flying from Ontario to Miami

  • How far is Ontario to Miami by plane?

    Ontario and Miami are 2299.8 mi apart from one another. By plane, this route typically takes 7h 12m.

  • When did momondo last update prices for flights from Ontario Airport to Miami Airport?

    Prices for flights from Ontario Airport to Miami Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Miami Airport?

  • How old do you have to be to fly from Ontario Airport to Miami Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Miami Airport.

  • What documentation or ID do you need to fly to Miami Airport?

    The travel and health documents required for your trip to Miami 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 Miami 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 Ontario to Miami?

Best airlines flying from Ontario to Miami

Compare and see reviews for airlines that fly from Ontario to Miami with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $124Free CancellationRating
5.6
2,970 reviews
Search Frontier flights
JetBluePriceFrom $213Free CancellationRating
7.1
2,967 reviews
Search JetBlue flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,466 reviews
Search Delta flights
United AirlinesPriceFrom $301Free CancellationRating
7.4
9,672 reviews
Search United Airlines flights
American AirlinesPriceFrom $316Free CancellationRating
7.1
11,677 reviews
Search American Airlines flights
SouthwestPriceFrom $351Free CancellationRating
8.0
4,314 reviews
Search Southwest flights

Traveling to a place near Miami?

Book flights to Miami if you plan to visit one of these locations
Miami Beach
Hollywood
Islamorada
Marco Island
Key Largo
Marathon
Palm Beach
Pompano Beach
Delray Beach
Dania Beach
Sunny Isles Beach
Bonita Springs
Doral
Jupiter
Lake Worth
Boynton Beach
Deerfield Beach
Lauderdale-by-the-Sea
Miami Springs
Surfside

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Miami?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Miami for you.

Can I find flights from Ontario to Miami with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Miami from Ontario with this policy.

How can momondo help me find flights from Ontario to Miami?

Once all potential Ontario to Miami 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 Ontario to Miami right now. Can momondo alert me if prices change?

Price alerts on flights to Miami from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Miami 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 5/28
Thu 6/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States