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Cheap flights from Ontario to Miami from $88

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 5/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Miami

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Miami.
Frontier Logo
5:15 pm - 5:40 amONT-MIA
9h 25m1 stop
Frontier Logo
7:10 am - 4:20 pmMIA-ONT
12h 10m1 stop
$178Frontier
Find Deal
Sat, May 24 - Sat, May 31
Frontier Logo
12:59 am - 5:22 amONT-MIA
25h 23m1 stop
Frontier Logo
6:00 am - 11:59 pmMIA-ONT
20h 59m1 stop
$180Frontier
Find Deal
Mon, May 5 - Tue, May 13
Frontier Logo
12:59 am - 5:22 amONT-MIA
25h 23m1 stop
Frontier Logo
6:00 am - 11:59 pmMIA-ONT
20h 59m1 stop
$181Frontier
Find Deal
Mon, May 5 - Tue, May 13
Delta Logo
10:05 pm - 9:28 amONT-MIA
8h 23m1 stop
Delta Logo
5:45 pm - 10:25 pmMIA-ONT
7h 40m1 stop
$299Delta
Find Deal
Tue, Jun 24 - Wed, Jul 2
Delta Logo
7:00 am - 1:00 amONT-MIA
15h 00m2 stops
Delta Logo
6:45 pm - 11:43 pmMIA-ONT
7h 58m1 stop
$304Delta
Find Deal
Wed, Aug 20 - Mon, Aug 25
American Airlines Logo
12:59 am - 12:45 pmONT-MIA
8h 46m1 stop
American Airlines Logo
5:18 am - 10:04 amMIA-ONT
7h 46m1 stop
$346American Airlines
Find Deal
Mon, Jun 9 - Sat, Jun 14
United Airlines Logo
6:32 pm - 5:45 amONT-MIA
8h 13m1 stop
United Airlines Logo
4:50 pm - 9:10 pmMIA-ONT
7h 20m1 stop
$394United Airlines
Find Deal
Thu, Jun 12 - Tue, Jun 17
United Airlines Logo
6:32 pm - 5:45 amONT-MIA
8h 13m1 stop
United Airlines Logo
4:16 pm - 10:11 pmMIA-ONT
8h 55m1 stop
$399United Airlines
Find Deal
Thu, Jun 19 - Wed, Jul 2
Southwest Logo
5:30 am - 5:25 pmONT-MIA
8h 55m2 stops
Southwest Logo
8:30 am - 5:15 pmMIA-ONT
11h 45m2 stops
$418Southwest
Find Deal
Tue, May 20 - Tue, May 27
Southwest Logo
5:45 am - 9:25 pmONT-MIA
12h 40m2 stops
Southwest Logo
7:15 am - 3:20 pmMIA-ONT
11h 05m2 stops
$439Southwest
Find Deal
Sat, Aug 23 - Sun, Aug 31

Frontier flights from Ontario to Miami

Our best Frontier deals on Ontario to Miami flight tickets
Frontier
May 24
ONT5:15 pmOntario
9h 25m
1 stop
MIA5:40 amMiami
May 31
MIA7:10 amMiami
12h 10m
1 stop
ONT4:20 pmOntario
Frontier
May 5
ONT12:59 amOntario
25h 23m
1 stop
MIA5:22 amMiami
May 13
MIA6:00 amMiami
20h 59m
1 stop
ONT11:59 pmOntario
Frontier
Apr 28
ONT12:59 amOntario
25h 22m
1 stop
MIA5:21 amMiami
May 7
MIA6:00 amMiami
20h 08m
1 stop
ONT11:08 pmOntario

Alaska Airlines flights from Ontario to Miami

Our best Alaska Airlines deals on Ontario to Miami flight tickets
Alaska Airlines
May 20
ONT6:00 amOntario
32h 21m
1 stop
MIA5:21 pmMiami
May 27
MIA6:21 pmMiami
19h 36m
1 stop
ONT10:57 amOntario
Alaska Airlines
May 27
ONT7:20 pmOntario
19h 01m
1 stop
MIA5:21 pmMiami
Jun 4
MIA6:21 pmMiami
19h 36m
1 stop
ONT10:57 amOntario
Alaska Airlines
May 31
ONT4:45 pmOntario
21h 36m
1 stop
MIA5:21 pmMiami
Jun 6
MIA6:21 pmMiami
25h 45m
2 stops
ONT5:06 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 $289. 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 $316.

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

The cheapest day to depart from Ontario to Miami is on a Wednesday when prices can be found for as low as $509. 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 $566.

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 $468. 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 $603. 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 23 weeks ahead of your departure date. In general, you can expect to find flights to Miami for around $416 when searching 23 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 $337 on momondo.

How have Ontario to Miami flight prices changed over time?

As of April 2025, prices for Ontario to Miami flights are approximately 8% cheaper 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

$88

Fastest flight time

6h 46m

Direct flights

None

Airports in Miami

1 airport
The best one-way flight to Miami from Ontario in the past 72 hours is $88. The best round-trip flight deal from Ontario to Miami found on momondo in the last 72 hours is $178.
The fastest flight from Ontario to Miami takes 6h 46m
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 6h 46m.

  • 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
Spirit AirlinesPriceFrom $149Free CancellationRating
6.3
7,940 reviews
Search Spirit Airlines flights
FrontierPriceFrom $150Free CancellationRating
5.9
3,283 reviews
Search Frontier flights
JetBluePriceFrom $186Free CancellationRating
7.3
2,924 reviews
Search JetBlue flights
American AirlinesPriceFrom $233Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
8.0
7,920 reviews
Search Delta flights
United AirlinesPriceFrom $257Free CancellationRating
7.4
8,685 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
Marco Island
Islamorada
Marathon
Palm Beach
Delray Beach
Pompano Beach
Jupiter
Boynton Beach
Dania Beach
Lake Worth
Sunny Isles Beach
Deerfield Beach
Doral
Miramar
Stuart
Bonita Springs
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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Mon 4/28
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