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Cheap flights from Ontario to Miami from $106

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 6/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Frontier Logo
12:59 am - 6:30 amONT-MIA
26h 31m1 stop
Frontier Logo
6:00 am - 11:50 pmMIA-ONT
20h 50m1 stop
$226Frontier
Find Deal
sáb., jul. 12 - vie., jul. 18
Frontier Logo
12:59 am - 6:30 amONT-MIA
26h 31m1 stop
Frontier Logo
6:00 am - 9:13 amMIA-ONT
30h 13m1 stop
$230Frontier
Find Deal
sáb., ago. 9 - dom., ago. 17
Delta Logo
10:05 pm - 10:57 amONT-MIA
9h 52m1 stop
Delta Logo
6:34 pm - 11:42 pmMIA-ONT
8h 08m1 stop
$257Delta
Find Deal
lun., jun. 30 - mié., jul. 30
Delta Logo
10:05 pm - 10:57 amONT-MIA
9h 52m1 stop
Delta Logo
6:00 am - 10:20 amMIA-ONT
7h 20m1 stop
$267Delta
Find Deal
lun., jun. 30 - vie., jul. 4
Alaska Airlines Logo
6:00 am - 5:18 pmONT-MIA
32h 18m1 stop
Alaska Airlines Logo
6:23 pm - 10:44 amMIA-ONT
19h 21m1 stop
$306Alaska Airlines
Find Deal
dom., oct. 26 - vie., oct. 31
Southwest Logo
5:30 am - 6:15 pmONT-MIA
9h 45m1 stop
Southwest Logo
1:15 pm - 10:05 pmMIA-ONT
11h 50m2 stops
$357Southwest
Find Deal
jue., oct. 23 - mié., oct. 29
United Airlines Logo
1:34 pm - 11:59 pmONT-MIA
7h 25m1 stop
United Airlines Logo
3:17 pm - 8:54 pmMIA-ONT
8h 37m1 stop
$377United Airlines
Find Deal
lun., jun. 30 - mar., jul. 1
Southwest Logo
10:25 am - 10:00 pmONT-MIA
8h 35m1 stop
Southwest Logo
5:50 am - 9:35 amMIA-ONT
6h 45m1 stop
$378Southwest
Find Deal
vie., jul. 4 - dom., jul. 13
Alaska Airlines Logo
7:25 pm - 5:26 pmONT-MIA
19h 01m1 stop
Alaska Airlines Logo
6:26 pm - 12:37 pmMIA-ONT
21h 11m1 stop
$386Alaska Airlines
Find Deal
lun., oct. 20 - vie., oct. 24
United Airlines Logo
1:33 pm - 11:50 pmONT-MIA
7h 17m1 stop
United Airlines Logo
12:06 pm - 10:52 pmMIA-ONT
13h 46m2 stops
$390United Airlines
Find Deal
mié., jun. 25 - mar., jul. 8

Frontier flights from Ontario to Miami

Our best Frontier deals on Ontario to Miami flight tickets
Frontier
Jul 12
ONT12:59 amOntario
26h 31m
1 stop
MIA6:30 amMiami
Jul 18
MIA6:00 amMiami
20h 50m
1 stop
ONT11:50 pmOntario
Frontier
Aug 9
ONT12:59 amOntario
26h 31m
1 stop
MIA6:30 amMiami
Aug 17
MIA6:00 amMiami
30h 13m
1 stop
ONT9:13 amOntario
Frontier
Aug 13
ONT7:22 pmOntario
7h 23m
1 stop
MIA5:45 amMiami
Aug 18
MIA7:15 amMiami
7h 38m
1 stop
ONT11:53 amOntario

United Airlines flights from Ontario to Miami

Our best United Airlines deals on Ontario to Miami flight tickets
United Airlines
Jun 30
ONT1:34 pmOntario
7h 25m
1 stop
MIA11:59 pmMiami
Jul 1
MIA3:17 pmMiami
8h 37m
1 stop
ONT8:54 pmOntario
United Airlines
Jun 25
ONT1:33 pmOntario
7h 17m
1 stop
MIA11:50 pmMiami
Jul 8
MIA12:06 pmMiami
13h 46m
2 stops
ONT10:52 pmOntario
United Airlines
Dec 4
ONT6:42 pmOntario
9h 38m
1 stop
MIA7:20 amMiami
Dec 9
MIA8:00 amMiami
7h 33m
1 stop
ONT12:33 pmOntario

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 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 $327. 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 $336.

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 $533. 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 $586.

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 $481. 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 $606. 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 to Miami?

You are more likely to see cheaper flights to Miami from Ontario when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Miami for around $431 when searching 13 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 $360 on momondo.

How have Ontario to Miami flight prices changed over time?

As of June 2025, prices for Ontario to Miami flights are approximately 4% 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

Best Price Found

$106

Fastest flight time

6h 22m

Direct flights

None

Airports in Miami

1 airport
The best one-way flight to Miami from Ontario in the past 72 hours is $106. The best round-trip flight deal from Ontario to Miami found on momondo in the last 72 hours is $226.
The fastest flight from Ontario to Miami takes 6h 22m
There are no direct flights from Ontario to Miami. Popular non-direct route for this connection is Ontario Airport - Miami Airport.
There is 1 airport near Miami: Miami (MIA)

  • 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 09m.

  • 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 $150Free CancellationRating
5.9
3,293 reviews
Search Frontier flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
8.0
7,945 reviews
Search Delta flights
United AirlinesPriceFrom $290Free CancellationRating
7.4
8,784 reviews
Search United Airlines flights
SouthwestPriceFrom $360Free CancellationRating
8.0
4,287 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
Key Largo
Hollywood
Islamorada
Marco Island
Palm Beach
Marathon
Delray Beach
Pompano Beach
Jupiter
Boynton Beach
Dania Beach
Lake Worth
Sunny Isles Beach
Deerfield Beach
Doral
Bonita Springs
Miramar
Stuart
Miami Gardens

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.


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1 adult
lun. 6/16
lun. 6/23

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