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Cheap flights from Miami to Ontario (MIA - ONT) from $104

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
MIA — ONT
Jun 18 — Jun 251
From?
To?
Tue 6/18
Tue 6/25
1 adult, Economy
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The best prices from Miami to Ontario are usually found in April or February, booked 63 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from Miami to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Miami (MIA) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 13, 2024.

Popular in

July

Cheapest in

April

Round-trip from

$238

One-way from

$146
High demand for flights, 35% potential price rise
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Best time to find cheap flights, 24% potential price drop
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From Miami to Ontario
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One-way flight from Miami to Ontario
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What is the cheapest day to fly round-trip from Miami to Ontario?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 60% when planning your travel around this day of the week.

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

To save up to 44% 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 Miami to Ontario from $266 1-2 weeks out and tickets from $358 for flights departing within the next 72 hours.

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

Flights from Miami to Ontario lean towards being more expensive in June. Prices are generally better when you fly from Miami to Ontario in February, with the cheapest ticket starting at $99.

What is the cheapest time of day to fly from MIA to ONT?

It’s typically best to fly out from Miami to Ontario in the morning. Doing so could potentially save you 15% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Miami to Ontario flights in June & July 2024

Find cheap flight options from Miami to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,214,720 searches. Prices were last updated on June 13, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. For more flight deals, be sure to check back very soon.
Wed 7/103:27 pmMIA - ONT
1 stop11h 12mFrontier
Wed 7/178:17 amONT - MIA
1 stop13h 46mFrontier
Deal found 6/13$158
Tue 7/167:25 amMIA - ONT
1 stop19h 34mFrontier
Tue 7/238:27 amONT - MIA
1 stop10h 57mFrontier
Deal found 6/12$159
Wed 7/107:25 amMIA - ONT
1 stop19h 14mFrontier
Tue 7/1612:59 amONT - MIA
1 stop21h 04mFrontier
Deal found 6/12$160
Wed 7/107:25 amMIA - ONT
1 stop19h 14mFrontier
Mon 7/1512:49 amONT - MIA
1 stop18h 25mFrontier
Deal found 6/13$161
Wed 7/176:30 amMIA - ONT
2 stops12h 35mFrontier
Mon 7/2212:49 amONT - MIA
1 stop26h 06mFrontier
Deal found 6/13$163
Wed 7/176:30 amMIA - ONT
2 stops12h 35mFrontier
Mon 7/2212:49 amONT - MIA
1 stop26h 06mFrontier
Deal found 6/12$165
Thu 7/111:55 pmMIA - ONT
1 stop13h 01mFrontier
Wed 7/178:17 amONT - MIA
1 stop13h 46mFrontier
Deal found 6/12$178
Thu 7/111:55 pmMIA - ONT
1 stop13h 01mFrontier
Wed 7/178:17 amONT - MIA
1 stop18h 25mFrontier
Deal found 6/13$180
Wed 7/103:27 pmMIA - ONT
1 stop11h 12mFrontier
Mon 7/157:42 pmONT - MIA
1 stop23h 32mFrontier
Deal found 6/12$181

Miami to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Miami and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
These are some of the best deals we've found on flights to Ontario in 2024 at this time. For more flight deals, be sure to check back very soon.
Wed 7/103:27 pmMIA - ONT
1 stop11h 12mFrontier
Wed 7/178:17 amONT - MIA
1 stop13h 46mFrontier
Deal found 6/13$158
Tue 7/167:25 amMIA - ONT
1 stop19h 34mFrontier
Tue 7/238:27 amONT - MIA
1 stop10h 57mFrontier
Deal found 6/12$159
Wed 7/107:25 amMIA - ONT
1 stop19h 14mFrontier
Tue 7/1612:59 amONT - MIA
1 stop21h 04mFrontier
Deal found 6/12$160
Wed 7/107:25 amMIA - ONT
1 stop19h 14mFrontier
Mon 7/1512:49 amONT - MIA
1 stop18h 25mFrontier
Deal found 6/13$161
Wed 7/176:30 amMIA - ONT
2 stops12h 35mFrontier
Mon 7/2212:49 amONT - MIA
1 stop26h 06mFrontier
Deal found 6/13$163
Wed 7/176:30 amMIA - ONT
2 stops12h 35mFrontier
Mon 7/2212:49 amONT - MIA
1 stop26h 06mFrontier
Deal found 6/12$165
Thu 8/17:30 amMIA - ONT
1 stop19h 26mFrontier
Wed 8/77:30 pmONT - MIA
1 stop7h 12mFrontier
Deal found 6/12$178
Thu 8/17:30 amMIA - ONT
1 stop19h 26mFrontier
Wed 8/77:30 pmONT - MIA
1 stop25h 13mFrontier
Deal found 6/12$179
Thu 7/111:55 pmMIA - ONT
1 stop13h 01mFrontier
Wed 7/178:17 amONT - MIA
1 stop18h 25mFrontier
Deal found 6/13$180

Miami to Ontario flights leaving soon

Find last-minute flight options from Miami to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
Book one of these great deals on flights from Miami to Ontario. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 6/273:17 pmMIA - ONT
1 stop18h 06mFrontier
Sat 6/2912:50 amONT - MIA
1 stop26h 03mFrontier
Deal found 6/12$227
Thu 6/273:17 pmMIA - ONT
1 stop18h 06mFrontier
Fri 6/2812:49 amONT - MIA
1 stop26h 04mFrontier
Deal found 6/12$230
Tue 6/183:17 pmMIA - ONT
1 stop18h 45mFrontier
Wed 7/1712:49 amONT - MIA
1 stop26h 06mFrontier
Deal found 6/12$233
Tue 6/183:17 pmMIA - ONT
1 stop18h 45mFrontier
Fri 6/2812:49 amONT - MIA
1 stop26h 04mFrontier
Deal found 6/12$249
Wed 6/267:30 amMIA - ONT
1 stop30h 29mFrontier
Wed 7/312:49 amONT - MIA
1 stop26h 04mFrontier
Deal found 6/12$251
Thu 6/273:17 pmMIA - ONT
1 stop18h 06mFrontier
Thu 7/412:59 amONT - MIA
1 stop21h 04mFrontier
Deal found 6/12$252
Wed 6/267:30 amMIA - ONT
1 stop30h 29mFrontier
Fri 6/2812:49 amONT - MIA
1 stop26h 04mFrontier
Deal found 6/12$253
Thu 6/277:30 amMIA - ONT
1 stop25h 53mFrontier
Wed 7/312:49 amONT - MIA
1 stop26h 04mFrontier
Deal found 6/12$259
Thu 6/207:30 amMIA - ONT
1 stop19h 08mFrontier
Fri 6/2812:49 amONT - MIA
1 stop26h 04mFrontier
Deal found 6/12$270

One-way flights to Ontario from Miami

Search for one-way flight options from Miami to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
Users traveling one-way from Miami to Ontario can select one of these great deals. For those needing a return trip from Miami, there is a search form available above.
Thu 7/111:55 pmMIA - ONT
1 stop13h 01mFrontier
Deal found 6/12$104
Thu 7/117:30 amMIA - ONT
1 stop19h 26mFrontier
Deal found 6/12$105
Fri 7/197:25 amMIA - ONT
1 stop19h 14mFrontier
Deal found 6/12$114
Thu 7/117:30 amMIA - ONT
1 stop19h 26mFrontier
Deal found 6/12$115
Fri 7/126:00 amMIA - ONT
1 stop7h 13mDelta
Deal found 6/12$128
Wed 7/246:30 amMIA - ONT
2 stops12h 35mFrontier
Deal found 6/12$133
Tue 7/237:25 amMIA - ONT
1 stop19h 34mFrontier
Deal found 6/12$134
Tue 7/1612:35 pmMIA - ONT
1 stop14h 24mFrontier
Deal found 6/12$135
Tue 6/183:17 pmMIA - ONT
1 stop18h 45mFrontier
Deal found 6/12$136

Find flights from Miami to Ontario within your budget

Customize your flight search to find flights from Miami to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$159 - $338

Route

Depart

Return

Price

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 7/16

1 stop19h 34m

Ontario

Tue 7/23

1 stop10h 57m

$159

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/10

1 stop19h 14m

Ontario

Tue 7/16

1 stop21h 04m

$160

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/17

2 stops12h 35m

Ontario

Mon 7/22

1 stop26h 06m

$163

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 7/17

2 stops12h 35m

Ontario

Mon 7/22

1 stop26h 06m

$165

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 8/1

1 stop19h 26m

Ontario

Wed 8/7

1 stop7h 12m

$178

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 7/30

1 stop7h 13m

Ontario

Fri 8/2

1 stop8h 06m

$256

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 7/12

1 stop7h 13m

Ontario

Tue 7/16

2 stops14h 02m

$261

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 9/17

1 stop10h 45m

Ontario

Mon 9/23

1 stop8h 55m

$303

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 8/29

1 stop7h 26m

Ontario

Fri 9/6

1 stop11h 01m

$338

Flights are sorted by cheapest first

Deals found on 6/12

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

Use this chart to determine the optimal time to book a round-trip flight from Miami to Ontario. Price data was last updated on May 31, 2024.
Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Miami to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Miami to Ontario. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Miami to Ontario flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Miami to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Miami with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated June 13, 2024.
See what other customers who have flown with Frontier, United Airlines and Delta from Miami to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,272 reviews

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,272 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,000 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Avianca
7.4
Good
3,529 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Boarding

8.2

Crew

8.6

Entertainment

7.3

Food

7.3

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Miami to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Yes, there are multiple flights from Miami to Ontario for under $200. The cheapest flight booked recently is on Frontier for just $159, but on average you can expect to pay $181.

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

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

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

    Currently priced at $159, Frontier will fly you from Miami to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Users have found that Frontier is 50% cheaper than the other options available to this destination.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $104. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Miami to Ontario for a low price.

  • What does MIA to ONT mean?

    MIA stands for Miami Airport, while ONT stands for Ontario Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from Miami to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Miami to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Miami to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Miami to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Miami to Ontario that include hotel bookings?

    Yes. In addition to deals on Miami to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Miami to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Miami to Ontario.

  • Can I find deals for business class flights from Miami to Ontario?

    Yes. Cheapflights offers flight deals from Miami to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Miami to Ontario that allow pets onboard?

    Many airlines flying from Miami to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Miami to Ontario?

    Yes, you can often find last-minute deals on Miami to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Miami to Ontario flight deals updated?

    The Miami to Ontario flight deals you see on this page were last updated on 6/13.

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

    When booking a flight from Miami to Ontario, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

  • What is the cheapest month to book a flight from Miami to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Miami to Ontario (average of $238). Flying from Miami to Ontario in July is currently the most expensive (average of $318). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Miami to Ontario
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Top 4 airlines flying from Miami to Ontario

Discover the top 4 airlines that operate flights from Miami to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$200Average$242FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$216Average$335FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$316FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$274Average$428FlexibilityNo cancel feeOn-time69%
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Search flights from Miami to Ontario by cabin class

Find flights from Miami to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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