What airlines fly to Miami?

American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Miami from Ontario according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Miami. Keep in mind that there are 8 different airlines that fly to Miami on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Miami?

Frontier, Southwest, and American Airlines are the most popular carriers operating from Ontario to Miami

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?

As of July 2025, there are 5 operators available to choose from 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.

$96 Cheap Flights from Ontario to Miami in 2025

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Find the cheapest flights from Ontario to Miami

Round-trip

One-way

Last minute

Cheap round-trip flights

5:14 pm - 5:45 amONT-MIA

9h 31m1 stop

7:15 am - 11:53 amMIA-ONT

7h 38m1 stop

$189Frontier

Find Deal

Thu, Aug 14 - Mon, Aug 18

9:05 am - 9:25 pmONT-MIA

9h 20m1 stop

8:05 am - 12:30 pmMIA-ONT

7h 25m1 stop

$194Southwest

Find Deal

Sat, Aug 9 - Sat, Aug 16

5:21 pm - 6:30 amONT-MIA

10h 09m1 stop

10:37 am - 7:14 pmMIA-ONT

11h 37m1 stop

$195Frontier

Find Deal

Thu, Aug 7 - Thu, Aug 14

6:45 am - 8:40 pmONT-MIA

10h 55m1 stop

8:05 am - 12:30 pmMIA-ONT

7h 25m1 stop

$199Southwest

Find Deal

Tue, Sep 16 - Sat, Sep 20

7:22 pm - 5:45 amONT-MIA

7h 23m1 stop

7:15 am - 4:20 pmMIA-ONT

12h 05m1 stop

$203Frontier

Find Deal

Wed, Jul 23 - Sat, Jul 26

8:15 am - 11:05 pmONT-MIA

11h 50m1 stop

4:02 pm - 9:24 pmMIA-ONT

8h 22m1 stop

$231American Airlines

Find Deal

Wed, Sep 24 - Fri, Sep 26

12:59 am - 2:33 pmONT-MIA

10h 34m1 stop

11:13 am - 6:24 pmMIA-ONT

10h 11m1 stop

$249American Airlines

Find Deal

Mon, Aug 4 - Tue, Aug 12

10:00 pm - 9:23 amONT-MIA

8h 23m1 stop

6:00 am - 10:35 amMIA-ONT

7h 35m1 stop

$257Delta

Find Deal

Fri, Aug 22 - Wed, Aug 27

5:05 am - 4:20 pmONT-MIA

8h 15m1 stop

12:06 pm - 10:52 pmMIA-ONT

13h 46m2 stops

$258United Airlines

Find Deal

Tue, Aug 5 - Thu, Aug 14

11:45 am - 12:24 amONT-MIA

9h 39m1 stop

2:45 pm - 11:40 pmMIA-ONT

11h 55m2 stops

$262Delta

Find Deal

Sat, Aug 16 - Thu, Aug 21

American Airlines flights from Ontario to Miami

Our best American Airlines deals on Ontario to Miami flight tickets

American Airlines

Sep 24

ONT8:15 amOntario

11h 50m

1 stop

MIA11:05 pmMiami

Sep 26

MIA4:02 pmMiami

8h 22m

1 stop

ONT9:24 pmOntario

$231

Find similar

American Airlines

Aug 4

ONT12:59 amOntario

10h 34m

1 stop

MIA2:33 pmMiami

Aug 12

MIA11:13 amMiami

10h 11m

1 stop

ONT6:24 pmOntario

$249

Find similar

American Airlines

Aug 16

ONT6:10 amOntario

12h 28m

1 stop

MIA9:38 pmMiami

Aug 21

MIA11:13 amMiami

10h 12m

1 stop

ONT6:25 pmOntario

$252

Find similar

Southwest flights from Ontario to Miami

Our best Southwest deals on Ontario to Miami flight tickets

Southwest

Aug 9

ONT9:05 amOntario

9h 20m

1 stop

MIA9:25 pmMiami

Aug 16

MIA8:05 amMiami

7h 25m

1 stop

ONT12:30 pmOntario

$194

Find similar

Southwest

Sep 16

ONT6:45 amOntario

10h 55m

1 stop

MIA8:40 pmMiami

Sep 20

MIA8:05 amMiami

7h 25m

1 stop

ONT12:30 pmOntario

$199

Find similar

Southwest

Aug 26

ONT10:20 amOntario

8h 25m

1 stop

MIA9:45 pmMiami

Aug 29

MIA8:00 amMiami

12h 55m

1 stop

ONT5:55 pmOntario

$228

Find similar

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

Prices

Airlines

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 $537. 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 $472. 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 $605. 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 weeks ahead of your departure date. In general, you can expect to find flights to Miami for around $430 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 $360 on momondo.

How have Ontario to Miami flight prices changed over time?

As of July 2025, prices for Ontario to Miami flights are approximately 15% 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	$96
Fastest flight time	7h 10m
Direct flights	None
Airports in Miami	1 airport

The best one-way flight to Miami from Ontario in the past 72 hours is $96. The best round-trip flight deal from Ontario to Miami found on momondo in the last 72 hours is $189.

The fastest flight from Ontario to Miami takes 7h 10m

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)

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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 10m.
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?
As of July 2025, there are 5 operators available to choose from 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?
Based on momondo bookings for flights between Ontario and Miami, the leading airline is American Airlines, making up 65% of the total bookings. Other popular airlines include United Airlines with 12%, Frontier with 12%, and Delta with 7%.

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
Frontier	PriceFrom $150	Free Cancellation	Rating 5.9 3,271 reviews	Search Frontier flights
Delta	PriceFrom $256	Free Cancellation	Rating 8.0 7,952 reviews	Search Delta flights
American Airlines	PriceFrom $276	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $290	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
Southwest	PriceFrom $360	Free Cancellation	Rating 8.0 4,250 reviews	Search Southwest flights

Miami Beach

Key Largo

Islamorada

Hollywood

Marco Island

Palm Beach

Marathon

Delray Beach

Pompano Beach

Jupiter

Sunny Isles Beach

Dania Beach

Boynton Beach

Lake Worth

Deerfield Beach

Bonita Springs

Doral

Stuart

Miramar

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.