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

Flights connecting via Houston (HOU) have the shortest average one-way travel time: 6h 11m.

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

Flights via Phoenix (PHX) offer the lowest average round-trip price of $356.

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

Dallas (DFW) has the shortest average layover time for this route: 0h 50m.

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

Houston (HOU) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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

Delta and United Airlines 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 October 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.

$94 Cheap Flights from Ontario to Miami in 2026/27

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.

6:45 am - 9:39 pmONT Ontario-MIA Miami

11h 54m1 stop Denver Intl

10:49 am - 1:00 pmMIA Miami-ONT Ontario

29h 11m2 stops Dallas/Fort Worth Las Vegas Harry Reid Intl

$182Frontier

Mon, Nov 23 - Wed, Dec 2

6:30 am - 12:57 amONT Ontario-MIA Miami

15h 27m1 stop Denver Intl

11:34 am - 7:07 amMIA Miami-ONT Ontario

22h 33m2 stops Dallas/Fort Worth Las Vegas Harry Reid Intl

$188Frontier

Tue, Jan 12 - Tue, Feb 2

12:20 pm - 12:58 amONT Ontario-MIA Miami

9h 38m1 stop Atlanta Hartsfield-Jackson

6:00 am - 11:07 amMIA Miami-ONT Ontario

8h 07m1 stop Atlanta Hartsfield-Jackson

$279Delta

Sat, Dec 5 - Tue, Dec 8

12:00 pm - 10:45 pmONT Ontario-MIA Miami

7h 45m1 stop Atlanta Hartsfield-Jackson

7:00 am - 11:27 amMIA Miami-ONT Ontario

7h 27m1 stop Atlanta Hartsfield-Jackson

$279Delta

Tue, Jan 26 - Tue, Feb 2

12:49 pm - 12:37 amONT Ontario-MIA Miami

8h 48m1 stop Dallas/Fort Worth

7:20 pm - 11:59 pmMIA Miami-ONT Ontario

7h 39m1 stop Dallas/Fort Worth

$298American Airlines

Tue, Feb 23 - Mon, Mar 1

10:37 am - 8:20 pmONT Ontario-MIA Miami

6h 43m1 stop Dallas/Fort Worth

10:50 am - 4:20 pmMIA Miami-ONT Ontario

8h 30m1 stop Phoenix Sky Harbor Intl

$298American Airlines

Mon, Nov 23 - Wed, Dec 2

5:45 am - 3:52 pmONT Ontario-MIA Miami

7h 07m1 stop Houston George Bush Intcntl

9:00 am - 5:36 pmMIA Miami-ONT Ontario

11h 36m1 stop San Francisco

$298United Airlines

Wed, Dec 9 - Mon, Dec 14

6:00 am - 3:48 pmONT Ontario-MIA Miami

6h 48m1 stop Houston George Bush Intcntl

3:43 pm - 9:00 pmMIA Miami-ONT Ontario

8h 17m1 stop Denver Intl

$332United Airlines

Thu, Jan 7 - Mon, Jan 11

4:01 pm - 6:10 amONT Ontario-MIA Miami

11h 09m1 stop Seattle/Tacoma Intl

5:00 pm - 11:59 pmMIA Miami-ONT Ontario

9h 59m1 stop Portland

$396Alaska Airlines

Mon, Nov 23 - Wed, Dec 2

4:01 pm - 6:10 amONT Ontario-MIA Miami

11h 09m1 stop Seattle/Tacoma Intl

5:01 am - 10:45 amMIA Miami-ONT Ontario

8h 44m1 stop Denver Intl

$404Multiple Airlines

Mon, Nov 23 - Wed, Dec 2

Cheap last minute flights

Enter your travel dates to find the best prices.

11:52 am - 12:44 amONT Ontario-MIA Miami

9h 52m1 stop Denver Intl

5:50 am - 10:42 amMIA Miami-ONT Ontario

7h 52m1 stop Denver Intl

$317Frontier

Sun, Nov 1 - Sat, Nov 14

11:52 am - 12:44 amONT Ontario-MIA Miami

9h 52m1 stop Denver Intl

5:50 am - 10:35 amMIA Miami-ONT Ontario

7h 45m1 stop Denver Intl

$319Frontier

Sun, Nov 1 - Tue, Nov 10

8:25 am - 8:05 pmONT Ontario-MIA Miami

8h 40m2 stops Las Vegas Harry Reid Intl Nashville Intl

9:25 am - 4:10 pmMIA Miami-ONT Ontario

9h 45m2 stops Dallas Love Field Phoenix Sky Harbor Intl

$617Southwest

Wed, Oct 28 - Wed, Nov 4

9:15 am - 10:15 pmONT Ontario-MIA Miami

10h 00m2 stops Phoenix Sky Harbor Intl Orlando

6:05 am - 4:40 pmMIA Miami-ONT Ontario

13h 35m2 stops Baltimore/Washington Las Vegas Harry Reid Intl

$622Southwest

Wed, Oct 28 - Sun, Nov 1

6:00 am - 6:20 pmONT Ontario-MIA Miami

9h 20m1 stop Houston George Bush Intcntl

9:00 am - 8:51 pmMIA Miami-ONT Ontario

14h 51m2 stops Washington, D.C. Dulles Intl Denver Intl

$660United Airlines

Sun, Nov 1 - Sat, Nov 14

5:00 am - 9:59 pmONT Ontario-MIA Miami

13h 59m2 stops Denver Intl Houston George Bush Intcntl

9:00 am - 8:51 pmMIA Miami-ONT Ontario

14h 51m2 stops Washington, D.C. Dulles Intl Denver Intl

$716United Airlines

Sun, Nov 1 - Sat, Nov 14

4:09 pm - 5:07 pmONT Ontario-MIA Miami

21h 58m1 stop Seattle/Tacoma Intl

5:18 am - 6:17 pmMIA Miami-ONT Ontario

15h 59m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl

$732Alaska Airlines

Sun, Nov 1 - Sat, Nov 14

12:02 pm - 5:07 pmONT Ontario-MIA Miami

26h 05m1 stop Seattle/Tacoma Intl

8:00 am - 9:52 amMIA Miami-ONT Ontario

28h 52m2 stops Dallas/Fort Worth Portland

$801Alaska Airlines

Sun, Nov 1 - Fri, Nov 13

5:03 pm - 6:22 amONT Ontario-MIA Miami

10h 19m1 stop Salt Lake City

6:55 am - 12:36 pmMIA Miami-ONT Ontario

8h 41m1 stop Salt Lake City

$1,568Delta

Mon, Nov 2 - Sat, Nov 7

5:03 pm - 6:22 amONT Ontario-MIA Miami

10h 19m1 stop Salt Lake City

7:00 am - 12:17 pmMIA Miami-ONT Ontario

8h 17m1 stop Salt Lake City

$1,594Delta

Mon, Nov 2 - Thu, Nov 12

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Frontier flights from Ontario to Miami

Our best Frontier deals on Ontario to Miami flight tickets

Frontier

Nov 23

ONT6:45 amOntario

11h 54m

1 stop

MIA9:39 pmMiami

Dec 2

MIA10:49 amMiami

29h 11m

2 stops

ONT1:00 pmOntario

$182

Frontier

Jan 12

ONT6:30 amOntario

15h 27m

1 stop

MIA12:57 amMiami

Feb 2

MIA11:34 amMiami

22h 33m

2 stops

ONT7:07 amOntario

$188

Frontier

Nov 23

ONT6:45 amOntario

11h 54m

1 stop

MIA9:39 pmMiami

Dec 2

MIA10:49 amMiami

29h 11m

2 stops

ONT1:00 pmOntario

$197

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Mon 11/23

6:45 am-9:39 pm

1 stop11h 54m

Miami

Wed 12/2

10:49 am-1:00 pm

2 stops29h 11m

$182

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Tue 1/12

6:30 am-12:57 am

1 stop15h 27m

Miami

Tue 2/2

11:34 am-7:07 am

2 stops22h 33m

$188

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Sat 12/5

12:20 pm-12:58 am

1 stop9h 38m

Miami

Tue 12/8

6:00 am-11:07 am

1 stop8h 07m

$279

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Tue 1/26

12:00 pm-10:45 pm

1 stop7h 45m

Miami

Tue 2/2

7:00 am-11:27 am

1 stop7h 27m

$279

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Tue 2/23

12:49 pm-12:37 am

1 stop8h 48m

Miami

Mon 3/1

7:20 pm-11:59 pm

1 stop7h 39m

$298

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Mon 11/23

10:37 am-8:20 pm

1 stop6h 43m

Miami

Wed 12/2

10:50 am-4:20 pm

1 stop8h 30m

$298

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Wed 12/9

5:45 am-3:52 pm

1 stop7h 07m

Miami

Mon 12/14

9:00 am-5:36 pm

1 stop11h 36m

$298

Quickest round-trip

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Thu 1/7

6:00 am-3:48 pm

1 stop6h 48m

Miami

Mon 1/11

3:43 pm-9:00 pm

1 stop8h 17m

$332

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Mon 11/23

4:01 pm-6:10 am

1 stop11h 09m

Miami

Wed 12/2

5:00 pm-11:59 pm

1 stop9h 59m

$396

OntarioMiami

ONT Ontario - MIA Miami

ONTMIA

Ontario

Mon 11/23

4:01 pm-6:10 am

1 stop11h 09m

Miami

Wed 12/2

5:01 am-10:45 am

1 stop8h 44m

$404

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 $386 to $585.
The lowest price recently found on this route was $182.

What is the cheapest month to fly to Miami?

The month of August is, on average, the cheapest month to fly to Miami from Ontario, with most prices found around $366. If you are unable to visit Miami during the month of August, then departing from Ontario during the month February is also very affordable. Most momondo users find prices during this month for around $370.

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 $581. 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 $649.

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 $522. 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 $620. 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 $441 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 October 2026, prices for Ontario to Miami flights are approximately 28% 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	$94
Fastest flight time	6h 48m
Direct flights	None

The best one-way flight to Miami from Ontario in the past 72 hours is $94. The best round-trip flight deal from Ontario to Miami found on momondo in the last 72 hours is $182.

The fastest flight from Ontario to Miami takes 6h 48m

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 48m.
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 October 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 42% of the total bookings. Other popular airlines include Frontier with 18%, United Airlines with 16%, 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 $148	Free Cancellation	Rating 5.5 2,516 reviews	Search Frontier flights
Delta	PriceFrom $178	Free Cancellation	Rating 7.8 8,680 reviews	Search Delta flights
JetBlue	PriceFrom $297	Free Cancellation	Rating 7.1 3,066 reviews	Search JetBlue flights
United Airlines	PriceFrom $326	Free Cancellation	Rating 7.3 10,442 reviews	Search United Airlines flights
American Airlines	PriceFrom $329	Free Cancellation	Rating 7.0 12,189 reviews	Search American Airlines flights
Southwest	PriceFrom $367	Free Cancellation	Rating 7.9 4,219 reviews	Search Southwest flights

Miami Beach

Islamorada

Hollywood

Marco Island

Key Largo

Marathon

Palm Beach

Pompano Beach

Delray Beach

Miami Springs

Dania Beach

Bonita Springs

Doral

Sunny Isles Beach

Boynton Beach

Lake Worth

Lauderdale-by-the-Sea

Deerfield Beach

Jupiter

Homestead

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 $94

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 11/26. 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

Best Price Found

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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