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

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — ONT
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$157
(Mytrip)

One-way from

$64
(Frontier)

Popular in

December

Cheapest in

April

Average price

$527
Provider with most accurate pricing for Miami-Ontario flight deals.
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Provider most trusted by Cheapflights users for Miami-Ontario flights.
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From Miami to Ontario
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One-way flight from Miami to Ontario
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High demand for flights, 21% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Miami to Ontario

Cheapest flights from Miami to Ontario
Explore the most affordable flight options available from Miami to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This Gotogate deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/258:00 amMIA - ONT
1 stop9h 21mFrontier
Thu 1/306:45 amONT - MIA
1 stop16h 09mFrontier
Deal found 12/17$332
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:00 amMIA - ONT
1 stop7h 46mDelta
Mon 1/61:00 pmONT - MIA
1 stop8h 51mDelta
Deal found 12/16$436
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/244:55 pmMIA - ONT
1 stop8h 34mUnited Airlines
Tue 1/76:00 amONT - MIA
1 stop6h 47mUnited Airlines
Deal found 12/17$511
This Alaska Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/287:07 pmMIA - ONT
1 stop17h 38mAlaska Airlines
Mon 12/308:32 pmONT - MIA
1 stop18h 23mAlaska Airlines
Deal found 12/17$772
This Southwest deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/271:05 pmMIA - ONT
1 stop11h 50mSouthwest
Sat 1/46:15 amONT - MIA
1 stop7h 55mSouthwest
Deal found 12/17$776
This Orbitz deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/235:35 pmMIA - ONT
2 stops19h 10mMultiple Airlines
Thu 12/265:34 pmONT - MIA
1 stop8h 26mMultiple Airlines
Deal found 12/17$1,081
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/184:08 pmMIA - ONT
2 stops9h 05mAmerican Airlines
Fri 12/2012:59 amONT - MIA
1 stop7h 09mAmerican Airlines
Deal found 12/17$1,227

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 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 1/8

8:00 am-11:44 pm

1 stop18h 44m

Ontario

Tue 1/14

7:45 am-11:23 pm

1 stop12h 38m

$157

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 1/21

7:15 pm-10:38 am

2 stops18h 23m

Ontario

Sat 1/25

6:45 am-5:09 pm

1 stop7h 24m

$351

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 3/7

7:52 pm-11:58 pm

1 stop31h 06m

Ontario

Tue 3/11

11:45 am-6:47 pm

1 stop28h 02m

$362

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 1/21

6:40 pm-11:53 pm

1 stop8h 13m

Ontario

Sat 1/25

1:00 pm-12:51 am

1 stop8h 51m

$411

MiamiOntario

MIA - ONT

MIAONT

Miami

Sat 1/18

5:18 am-11:58 am

2 stops9h 40m

Ontario

Mon 1/20

12:48 pm-6:06 am

1 stop14h 18m

$452

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 2/19

4:52 pm-9:59 pm

1 stop8h 07m

Ontario

Tue 2/25

6:00 am-3:46 pm

1 stop6h 46m

$476

MiamiOntario

MIA - ONT

MIAONT

Miami

Fri 1/17

7:30 am-3:20 pm

1 stop10h 50m

Ontario

Mon 1/20

5:00 am-4:55 pm

2 stops8h 55m

$511

MiamiOntario

MIA - ONT

MIAONT

Miami

Thu 2/13

1:29 pm-6:58 pm

1 stop8h 29m

$64

MiamiOntario

MIA - ONT

MIAONT

Miami

Tue 2/11

7:15 pm-11:58 pm

1 stop31h 43m

$197

MiamiOntario

MIA - ONT

MIAONT

Miami

Wed 12/25

6:00 am-10:46 am

1 stop7h 46m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 14 results
1
2

Compare providers for flights from Miami to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Miami to Ontario in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Miami-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Miami-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Miami-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Miami-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Miami-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

Travel insights for flights from Miami to Ontario

Get recent, data-driven insights about flights from Miami to Ontario including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Miami to Ontario (average of $236). Flying from Miami to Ontario in December is currently the most expensive (average of $298). 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.

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

Find hourly flight availability from Miami to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

It’s typically best to fly out from Miami to Ontario in the afternoon. Doing so could potentially save you 33% on the flight price compared to flying at noon, which is usually more expensive.

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 December 16, 2024.

Travelers seeking maximum savings on their Miami to Ontario flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

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 December 18, 2024.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines 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.
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,554 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
9,055 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Entertainment

7.7

Boarding

8.2

Crew

8.7

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

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.

  • What are the cheapest airlines flying from Miami to Ontario round-trip?

    Currently priced at $157, Frontier will fly you from Miami to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Delta - these airlines can fly you to your destination from $362 and $411, respectively. Users have found that Frontier is 53% 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 $64. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Miami to Ontario for a low price.

  • 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.

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

    Currently, September is the cheapest month in which you can book a flight from Miami to Ontario (average of $236). Flying from Miami to Ontario in December is currently the most expensive (average of $298). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$162Average$279FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$216Average$303FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$316FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$256Average$428FlexibilityNo cancel feeOn-time69%
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