Which airport is the most popular layover for flights between Ontario and Miami?

Dallas (DFW) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Miami?

Flights via Houston (IAH) offer the lowest average round-trip price of $342.

Which layover airport has the shortest travel time from Ontario to Miami?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 6h 23m.

Which layover airport has the shortest connection time from Ontario to Miami?

Dallas (DFW) has the shortest average layover time for this route: 1h 01m.

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

United Airlines, Delta, and Southwest are the most popular carriers operating from Ontario to Miami

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 40% of people opting to fly with this airline when traveling to Miami. Keep in mind that there are 6 different airlines that fly to Miami on a routine basis, so you have a few additional options to choose from.

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 August 2026, there are 6 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.

$118 Cheap Flights from Ontario to Miami in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Miami

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:33 am - 11:55 pmONT Ontario-MIA Miami

11h 22m1 stop Houston George Bush Intcntl

5:50 am - 10:30 amMIA Miami-ONT Ontario

7h 40m1 stop Denver Intl

$260Frontier

Sun, Sep 6 - Sat, Sep 12

6:45 pm - 2:39 pmONT Ontario-MIA Miami

16h 54m1 stop Houston George Bush Intcntl

5:50 am - 7:36 pmMIA Miami-ONT Ontario

16h 46m2 stops Denver Intl San Francisco

$267Frontier

Fri, Sep 11 - Mon, Sep 14

11:45 am - 12:46 amONT Ontario-MIA Miami

10h 01m1 stop Denver Intl

7:35 am - 7:03 pmMIA Miami-ONT Ontario

14h 28m2 stops Phoenix Sky Harbor Intl Seattle/Tacoma Intl

$411Multiple Airlines

Mon, Sep 21 - Wed, Sep 23

7:12 am - 9:58 pmONT Ontario-MIA Miami

11h 46m2 stops Portland Dallas/Fort Worth

5:50 am - 10:30 amMIA Miami-ONT Ontario

7h 40m1 stop Denver Intl

$411Multiple Airlines

Fri, Sep 11 - Sun, Sep 13

10:58 am - 10:41 pmONT Ontario-MIA Miami

8h 43m1 stop Dallas/Fort Worth

10:40 am - 5:22 pmMIA Miami-ONT Ontario

9h 42m1 stop Dallas/Fort Worth

$413American Airlines

Tue, Feb 2 - Tue, Feb 9

10:25 am - 11:18 pmONT Ontario-MIA Miami

9h 53m1 stop Dallas/Fort Worth

3:30 pm - 10:37 pmMIA Miami-ONT Ontario

10h 07m1 stop Dallas/Fort Worth

$413American Airlines

Wed, Sep 9 - Wed, Sep 16

12:00 pm - 12:52 amONT Ontario-MIA Miami

9h 52m1 stop Atlanta Hartsfield-Jackson

3:35 pm - 10:14 pmMIA Miami-ONT Ontario

9h 39m1 stop Atlanta Hartsfield-Jackson

$413Delta

Sat, Jan 23 - Wed, Feb 10

5:05 pm - 6:08 amONT Ontario-MIA Miami

10h 03m1 stop Salt Lake City

4:40 pm - 10:14 pmMIA Miami-ONT Ontario

8h 34m1 stop Atlanta Hartsfield-Jackson

$413Delta

Tue, Jan 19 - Sat, Feb 6

7:25 am - 8:15 pmONT Ontario-MIA Miami

9h 50m1 stop Nashville Intl

6:45 am - 12:30 pmMIA Miami-ONT Ontario

8h 45m2 stops Houston Hobby Dallas Love Field

$418Southwest

Wed, Sep 9 - Wed, Sep 16

7:15 am - 4:50 pmONT Ontario-MIA Miami

6h 35m1 stop Denver Intl

6:20 am - 2:20 pmMIA Miami-ONT Ontario

11h 00m2 stops Dallas Love Field Las Vegas Harry Reid Intl

$418Southwest

Tue, Feb 2 - Tue, Feb 9

Cheap last minute flights

Enter your travel dates to find the best prices.

1:38 pm - 6:30 amONT Ontario-MIA Miami

13h 52m1 stop Las Vegas Harry Reid Intl

8:00 am - 7:01 pmMIA Miami-ONT Ontario

14h 01m1 stop Houston George Bush Intcntl

$323Frontier

Wed, Aug 12 - Wed, Aug 26

9:36 am - 12:21 amONT Ontario-MIA Miami

11h 45m1 stop Houston George Bush Intcntl

6:00 am - 11:50 pmMIA Miami-ONT Ontario

20h 50m1 stop Denver Intl

$325Frontier

Tue, Aug 11 - Tue, Sep 8

9:36 am - 12:21 amONT Ontario-MIA Miami

11h 45m1 stop Houston George Bush Intcntl

6:16 pm - 4:10 pmMIA Miami-ONT Ontario

24h 54m2 stops Seattle/Tacoma Intl Boise Air Term. Gowen Fld

$482Multiple Airlines

Mon, Aug 10 - Tue, Sep 8

6:15 am - 6:50 pmONT Ontario-MIA Miami

9h 35m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

5:20 am - 9:34 amMIA Miami-ONT Ontario

7h 14m1 stop Dallas/Fort Worth

$495American Airlines

Tue, Aug 11 - Tue, Sep 8

1:38 pm - 6:30 amONT Ontario-MIA Miami

13h 52m1 stop Las Vegas Harry Reid Intl

6:16 pm - 9:51 amMIA Miami-ONT Ontario

18h 35m2 stops Seattle/Tacoma Intl Portland

$507Multiple Airlines

Wed, Aug 12 - Tue, Sep 8

7:05 am - 6:42 pmONT Ontario-MIA Miami

8h 37m1 stop Atlanta Hartsfield-Jackson

7:15 am - 12:16 pmMIA Miami-ONT Ontario

8h 01m1 stop Salt Lake City

$512Delta

Wed, Aug 12 - Thu, Aug 20

5:05 pm - 6:00 amONT Ontario-MIA Miami

9h 55m1 stop Salt Lake City

7:15 am - 12:16 pmMIA Miami-ONT Ontario

8h 01m1 stop Salt Lake City

$512Delta

Tue, Aug 11 - Thu, Aug 20

6:40 am - 8:10 pmONT Ontario-MIA Miami

10h 30m2 stops Phoenix Sky Harbor Intl Nashville Intl

2:20 pm - 9:00 pmMIA Miami-ONT Ontario

9h 40m2 stops Dallas Love Field Phoenix Sky Harbor Intl

$522Southwest

Tue, Aug 11 - Tue, Sep 8

7:45 am - 8:10 pmONT Ontario-MIA Miami

9h 25m2 stops Las Vegas Harry Reid Intl Nashville Intl

2:20 pm - 9:00 pmMIA Miami-ONT Ontario

9h 40m2 stops Dallas Love Field Phoenix Sky Harbor Intl

$522Southwest

Wed, Aug 12 - Tue, Sep 8

10:29 am - 9:05 pmONT Ontario-MIA Miami

7h 36m1 stop Dallas/Fort Worth

11:11 am - 6:15 pmMIA Miami-ONT Ontario

10h 04m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

$663American Airlines

Sun, Aug 9 - Tue, Aug 11

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Frontier flights from Ontario to Miami

Our best Frontier deals on Ontario to Miami flight tickets

Frontier

Sep 6

ONT9:33 amOntario

11h 22m

1 stop

MIA11:55 pmMiami

Sep 12

MIA5:50 amMiami

7h 40m

1 stop

ONT10:30 amOntario

$260

Frontier

Sep 11

ONT6:45 pmOntario

16h 54m

1 stop

MIA2:39 pmMiami

Sep 14

MIA5:50 amMiami

16h 46m

2 stops

ONT7:36 pmOntario

$267

Frontier

Sep 12

ONT11:45 amOntario

10h 01m

1 stop

MIA12:46 amMiami

Sep 19

MIA5:50 amMiami

7h 40m

1 stop

ONT10:30 amOntario

$274

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Sun 9/6

9:33 am-11:55 pm

1 stop11h 22m

Miami

Sat 9/12

5:50 am-10:30 am

1 stop7h 40m

$260

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Fri 9/11

6:45 pm-2:39 pm

1 stop16h 54m

Miami

Mon 9/14

5:50 am-7:36 pm

2 stops16h 46m

$267

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Mon 9/21

11:45 am-12:46 am

1 stop10h 01m

Miami

Wed 9/23

7:35 am-7:03 pm

2 stops14h 28m

$411

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Fri 9/11

7:12 am-9:58 pm

2 stops11h 46m

Miami

Sun 9/13

5:50 am-10:30 am

1 stop7h 40m

$411

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Tue 2/2

10:58 am-10:41 pm

1 stop8h 43m

Miami

Tue 2/9

10:40 am-5:22 pm

1 stop9h 42m

$413

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Wed 9/9

10:25 am-11:18 pm

1 stop9h 53m

Miami

Wed 9/16

3:30 pm-10:37 pm

1 stop10h 07m

$413

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Sat 1/23

12:00 pm-12:52 am

1 stop9h 52m

Miami

Wed 2/10

3:35 pm-10:14 pm

1 stop9h 39m

$413

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Tue 1/19

5:05 pm-6:08 am

1 stop10h 03m

Miami

Sat 2/6

4:40 pm-10:14 pm

1 stop8h 34m

$413

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Wed 9/9

7:25 am-8:15 pm

1 stop9h 50m

Miami

Wed 9/16

6:45 am-12:30 pm

2 stops8h 45m

$418

Quickest round-trip

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Tue 2/2

7:15 am-4:50 pm

1 stop6h 35m

Miami

Tue 2/9

6:20 am-2:20 pm

2 stops11h 00m

$418

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Layovers

What is the typical price of a round-trip flight between Ontario and Miami?

Prices are currently low for flights on this route.

Typical prices usually range from $325 to $427.
The lowest price recently found on this route was $260.

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 $344. 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 $355.

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 $564. 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 $639.

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 $524. 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 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 $418 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 $371 on momondo.

How have Ontario to Miami flight prices changed over time?

As of August 2026, prices for Ontario to Miami flights are approximately 29% 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	6h 31m
Direct flights	None

The fastest flight from Ontario to Miami takes 6h 31m

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 6h 31m.
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 August 2026, there are 6 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 43% of the total bookings. Other popular airlines include United Airlines with 18%, Frontier with 14%, and Southwest with 12%.

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 $145	Free Cancellation	Rating 5.6 2,723 reviews	Search Frontier flights
Delta	PriceFrom $178	Free Cancellation	Rating 7.8 8,496 reviews	Search Delta flights
JetBlue	PriceFrom $213	Free Cancellation	Rating 7.1 3,024 reviews	Search JetBlue flights
American Airlines	PriceFrom $325	Free Cancellation	Rating 7.1 11,873 reviews	Search American Airlines flights
United Airlines	PriceFrom $326	Free Cancellation	Rating 7.4 10,075 reviews	Search United Airlines flights
Southwest	PriceFrom $356	Free Cancellation	Rating 8.0 4,217 reviews	Search Southwest flights

Miami Beach

Hollywood

Islamorada

Marco Island

Key Largo

Marathon

Palm Beach

Pompano Beach

Delray Beach

Miami Springs

Dania Beach

Sunny Isles Beach

Bonita Springs

Doral

Lake Worth

Jupiter

Boynton Beach

Deerfield Beach

Lauderdale-by-the-Sea

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.

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Cheap flights from Ontario to Miami from $118

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 9/11. 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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Frontier flights from Ontario to Miami

Our best Frontier deals on Ontario to Miami flight tickets

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How to get the cheapest flight ticket from Ontario to Miami

What is the typical price of a round-trip flight between Ontario and Miami?

What is the cheapest month to fly to Miami?

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

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

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

How have Ontario to Miami flight prices changed over time?

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

What airlines fly to Miami?

Which airport is the most popular layover for flights between Ontario and Miami?

Which layover airport offers the lowest fares from Ontario to Miami?

Which layover airport has the shortest travel time from Ontario to Miami?

Which layover airport has the shortest connection time from Ontario to Miami?

When to book flights from Ontario to Miami

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

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Miami?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Florida

Fly your favorite airline to Miami

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Miami

List of cabin classes available on flights landing in Miami. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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