Cheap flights from Ontario to Miami (ONT - MIA) from $64

This is the cheapest one-way flight price, found on 10/1. Prices may vary by date and flight preferences.
ONT — MIA
Oct 7 — Oct 141

The best prices from Ontario to Miami are usually found in November or January, booked 22 days in advance, depart on a Tuesday or Saturday and return on a Monday

How to find the cheapest flight from Ontario (ONT) to Miami (MIA)

All the information you need to plan the best ONT to MIA flight in 2023: compare Ontario to Miami flight prices with the expected peak season, weather and rainfall in Miami.

Popular in

July

Cheapest in

November

Round-trip from

$208

One-way from

$100
High demand for flights, 36% potential price rise
Best time to find cheap flights, 25% potential price drop
From Ontario to Miami
One-way flight from Ontario to Miami

ONT - MIA

Price

$208 - $499

MIA

Temperature

68 - 84.2 °F

MIA

Rainfall

1.6 - 9.9 inches

What is the cheapest day to fly round-trip from Ontario to Miami?

Wednesday flights are generally found to be more expensive for flights from Ontario to Miami. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Miami.

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

To save up to 26% on this flight, we recommend booking at least 58 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Miami from $425 1-2 weeks out and tickets from $457 for flights departing within the next 72 hours.

What is the cheapest month to fly from Ontario to Miami?

January is one of the best times of the year to fly to Miami from Ontario. Prices for January average $386 per person but you can even find prices for as low as $178. The most expensive prices can be found in the month of June. Opting for a January flight can save you 35% on your journey compared to booking in June

When is the cheapest time to fly from Ontario to Miami (ONT - MIA)?

One of the essential ways to save on airfare from Ontario to Miami is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 29% on airfare.

Cheap Frontier flights from Ontario to Miami

Take a look at some of the lowest-priced Frontier flights heading from Ontario to Miami. Be sure to come back soon if the deals available don't appeal to you at this time.

Cheap United Airlines flights from Ontario to Miami

Have a look at some of the cheapest available United Airlines flights departing from Ontario and landing in Miami. Make sure to examine the flight information before completing your reservation.

Cheap Ontario to Miami flights in October & November 2023

The best prices found for ONT to MIA flights for October, November
The lowest fares we've come across on flights traveling from Ontario to Miami in October and November 2023. More deals are always being added, so be sure to check back regularly.

Ontario to Miami 2023 flight deals

Cheap flights to Miami from Ontario found for this year
The lowest fares we've come across on flights traveling from Ontario to Miami in October and November 2023. More deals are always being added, so be sure to check back regularly.

Ontario to Miami flights leaving soon

Late deals on return flights to Miami from Ontario, departing today and this week
Consider one of these great deals we found on last-minute flights from Ontario to Miami. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Miami from Ontario

The cheapest one-way flights from Ontario to Miami
Take a look at some of the one-way flights we've detected from Ontario to Miami. For those needing a return trip from Ontario, there is a search form available above.

Find flights from Ontario to Miami within your budget

Use the slider to find flights from Ontario to Miami that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$141 - $347

Route

Depart

Return

Price

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Thu 11/30

1 stop13h 55m

Miami

Mon 12/4

1 stop15h 19m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Mon 10/30

2 stops15h 20m

Miami

Mon 11/6

1 stop25h 46m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Wed 10/18

1 stop20h 26m

Miami

Mon 10/23

1 stop24h 40m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sat 10/28

1 stop8h 18m

Miami

Sat 11/4

1 stop11h 18m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sat 10/21

1 stop8h 28m

Miami

Tue 10/24

1 stop8h 49m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Tue 10/31

1 stop10h 51m

Miami

Tue 11/7

1 stop12h 25m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sun 10/15

1 stop8h 59m

Miami

Sat 10/21

1 stop8h 40m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sun 10/15

1 stop8h 30m

Miami

Thu 10/19

1 stop8h 21m

OntarioMiami

ONT - MIA

ONTMIA

Ontario

Sat 11/4

1 stop7h 02m

Miami

Tue 11/7

1 stop8h 05m

Flights are sorted by cheapest first

Deals found on 10/1

Reviews of airlines servicing Miami

Peruse reviews from past customers who have flown with Frontier, United Airlines and Alaska Airlines from Ontario to Miami to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Crew

8.6

Entertainment

7.2

Overall

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

The crew was friendly and cabin service was good. It was a full flight bur the crew did a great job of keeping the passengers happy.

Alaska Airlines
8.1
Very good
1,394 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Crew

8.6

Entertainment

7.2

Overall

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

The crew was friendly and cabin service was good. It was a full flight bur the crew did a great job of keeping the passengers happy.

Delta
7.9
Good
3,023 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Crew

8.6

Entertainment

7.2

Overall

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

The crew was friendly and cabin service was good. It was a full flight bur the crew did a great job of keeping the passengers happy.

Southwest
7.6
Good
1,521 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Crew

8.6

Entertainment

7.2

Overall

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

The crew was friendly and cabin service was good. It was a full flight bur the crew did a great job of keeping the passengers happy.

United Airlines
7.4
Good
1,890 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Crew

8.6

Entertainment

7.2

Overall

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

The crew was friendly and cabin service was good. It was a full flight bur the crew did a great job of keeping the passengers happy.

American Airlines
7.2
Good
2,635 reviews
Alaska Airlines
8.1
Very good
1,394 reviews

Food

7.2

Crew

8.6

Entertainment

7.2

Overall

8.1

Boarding

8.3

Comfort

8.0

Reviews

1 / 10

The crew was friendly and cabin service was good. It was a full flight bur the crew did a great job of keeping the passengers happy.

Related info for your journey

Useful info, stats and facts about Ontario to Miami flights.

Can I find flights from Ontario to Miami for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to Miami for under $200. The cheapest flight booked recently is on Multiple Airlines for just $141, but on average you can expect to pay $173.

Are there last-minute flights available from Ontario to Miami for under $300?

There are currently 20+ open flights from Ontario to Miami within the next 7 days for less than $300.

How popular is this Ontario to Miami flight route?

What is the cheapest airline to fly from Ontario to Miami round-trip?

Flying on Frontier is currently your cheapest option to Miami, with prices starting at $164. Frontier is 60% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Ontario to Miami one-way?

$64 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and JetBlue, with prices starting from $100 and $119, respectively.

What are the most popular airlines that fly from Ontario to Miami?

What does ONT to MIA mean?

ONT and MIA are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ONT to MIA refers to a flight route from Ontario Airport to Miami Airport.

Alternative routes for Ontario to Miami

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ontario to Miami

The chart below displays the airlines Cheapflights users traveling from Ontario to Miami choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$111Average$308FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Spirit AirlinesCheapest$136Average$182FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
United AirlinesCheapest$164Average$534FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FrontierCheapest$165Average$238FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapest$198Average$455FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$225Average$494FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Hourly flight availability from Ontario to Miami

See what time of day planes typically take off from Ontario to Miami
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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How does Cheapflights help users find flights from Ontario to Miami?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Miami. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ontario to Miami?

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Miami for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Ontario to Miami with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to Miami flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to Miami become cheaper?

Yes! Start tracking prices for Ontario to Miami flights today and get alerted whenever prices for these flights change. To access this feature, navigate to the search form above to perform a search, which will then prompt you for a valid email address to use the tool.

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