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£103 Cheap Flights from Ontario Intl. Airport (ONT) to Miami (MIA)

View £103 flight on Tue, 23 Feb 2027Opens in a new window

Popular airlines from Ontario Intl. Airport (ONT) to Miami International Airport (MIA)

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Cheap Flights from Ontario Intl. Airport (ONT) to Miami (MIA)

Prices were available within the past 7 days and start at £103 for one-way flights and £206 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 9 Jan - Tue, 26 Jan
ONT
Ontario
MIA
Miami
£206 Return, found 5 days ago
£206
Return
found 5 days ago
Select Delta flight, departing Sat, 9 Jan from Ontario to Miami, returning Tue, 26 Jan, priced at £206 found 5 days ago
Delta
Mon, 11 Jan - Tue, 26 Jan
ONT
Ontario
MIA
Miami
£220 Return, found 5 days ago
£220
Return
found 5 days ago
Select Delta flight, departing Mon, 11 Jan from Ontario to Miami, returning Tue, 26 Jan, priced at £220 found 5 days ago
Delta
Tue, 12 Jan - Tue, 26 Jan
ONT
Ontario
MIA
Miami
£225 Return, found 5 days ago
£225
Return
found 5 days ago
Select Delta flight, departing Tue, 12 Jan from Ontario to Miami, returning Tue, 26 Jan, priced at £225 found 5 days ago
Delta
Mon, 11 Jan - Thu, 28 Jan
ONT
Ontario
MIA
Miami
£234 Return, found 5 days ago
£234
Return
found 5 days ago
Select Delta flight, departing Mon, 11 Jan from Ontario to Miami, returning Thu, 28 Jan, priced at £234 found 5 days ago
Delta
Tue, 12 Jan - Thu, 28 Jan
ONT
Ontario
MIA
Miami
£238 Return, found 5 days ago
£238
Return
found 5 days ago
Select Delta flight, departing Tue, 12 Jan from Ontario to Miami, returning Thu, 28 Jan, priced at £238 found 5 days ago
Delta
Mon, 11 Jan - Fri, 29 Jan
ONT
Ontario
MIA
Miami
£248 Return, found 5 days ago
£248
Return
found 5 days ago
Select Delta flight, departing Mon, 11 Jan from Ontario to Miami, returning Fri, 29 Jan, priced at £248 found 5 days ago
Delta
Tue, 12 Jan - Fri, 29 Jan
ONT
Ontario
MIA
Miami
£252 Return, found 5 days ago
£252
Return
found 5 days ago
Select Delta flight, departing Tue, 12 Jan from Ontario to Miami, returning Fri, 29 Jan, priced at £252 found 5 days ago
United
Wed, 13 Jan - Wed, 20 Jan
ONT
Ontario
MIA
Miami
£298 Return, found 3 days ago
£298
Return
found 3 days ago
Select United flight, departing Wed, 13 Jan from Ontario to Miami, returning Wed, 20 Jan, priced at £298 found 3 days ago
American Airlines
Mon, 5 Oct - Fri, 9 Oct
ONT
Ontario
MIA
Miami
£473 Return, found 3 days ago
£473
Return
found 3 days ago
Select American Airlines flight, departing Mon, 5 Oct from Ontario to Miami, returning Fri, 9 Oct, priced at £473 found 3 days ago
Alaska Airlines
Tue, 29 Sept - Tue, 13 Oct
ONT
Ontario
MIA
Miami
£14,746 Return, found 3 days ago
£14,746
Return
found 3 days ago
Select Alaska Airlines flight, departing Tue, 29 Sept from Ontario to Miami, returning Tue, 13 Oct, priced at £14,746 found 3 days ago

Alternative airports near Miami

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Miami Intl. MIA. Cheapest option available. Average driving time to city centre is 12 minutes. Flights from £459
MIA
Miami Intl.
Cheapest
Average driving time to city centre12 min
Flights from £459

Frequently asked questions

How much does a flight from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.) cost?
You can find one-way and return flights from ONT to MIA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ONT to MIA ticket fares go up or down.
What is the cheapest month to fly from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
September is typically the cheapest month to fly from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.), with average return fares around £270. September often sees lower prices as the summer travel rush ends and before the holiday season begins, leading to reduced demand. Other cheap months to fly from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.) include January and August.
Which airlines fly direct from Ontario Intl. Airport (ONT) to Miami, FL (MIA)?
Enter ONT to MIA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
Delta is one of the cheapest airlines offering connecting return flights from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.), with tickets starting from around £348 for flights that can be booked for departure within the next year. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
To find a cheap flight from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
The best time to fly from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.) is typically September or August. These months offer the most affordable return flights, with prices averaging around £270. This is a great time to visit Miami as the summer crowds start to thin out, and you can often find good deals on accommodation too. If you're flexible, these months give you both good fares and excellent flight schedules to work with.
How many flights per day from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
There are approximately 55 connecting flights per day from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.). Some common connection points include Seattle - Tacoma Intl. (SEA), Denver Intl. (DEN), and Sky Harbor Intl. (PHX).
What is the earliest flight from Ontario Intl. Airport (ONT) to Miami, FL (MIA)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from Ontario Intl. Airport (ONT) to Miami, FL (MIA). To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
You'll find the most flights from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.) on a Friday, with around 45 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, Southwest Airlines, and Alaska Airlines. Fridays offer notably more flight options compared to other days of the week, making it a popular choice for travellers.
What are the most popular departure times for flights from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
The most popular departure times for flights from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.) are in the morning, from 6am to 9am. Many major carriers, including American Airlines, United and Southwest Airlines, offer flights during this window. Many travellers prefer these early morning flights as they allow you to arrive at your destination with plenty of time to settle in and start your day.
How long does it take to fly from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Miami, FL (MIA-Miami Intl.)?
Flights from ONT to MIA with one stop typically take around 6 hours 50 minutes, covering approximately 3,690 kilometers. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
Yes, you can fly business class or first class between Ontario Intl. Airport (ONT) and Miami, FL (MIA-Miami Intl.).Airlines that offer business class service on this route include:
  • Frontier Airlines
  • Delta

First class cabins are available on:
  • Alaska Airlines
  • Delta
  • United
  • American Airlines

How do I earn miles on a Ontario Intl. Airport (ONT) to Miami, FL (MIA) flight with Expedia?
It's easy to earn miles on a Ontario Intl. Airport (ONT) to Miami, FL (MIA) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Ontario Intl. Airport (ONT) to Miami, FL (MIA) at the last minute?
Typically, booking a last minute flight from Ontario Intl. Airport (ONT) to Miami, FL (MIA) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Ontario Intl. Airport (ONT) to Miami, FL (MIA) flight and hotel package?
Securing a Ontario Intl. Airport (ONT) to Miami, FL (MIA) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.)?
If you booked your Ontario Intl. Airport (ONT) to Miami, FL (MIA-Miami Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Ontario Intl. Airport
Destination airport
Miami Intl.
Return price
£206
Distance
3667 km

Book with confidence

Compare flights from Ontario Intl. Airport to Miami easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Ontario Intl. Airport to Miami. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Miami Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Ontario Intl. Airport to Miami Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Ontario Intl. Airport (ONT) to Miami Intl. (MIA)

The easiest way to view the best deals on flights from Ontario Intl. Airport to Miami today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Ontario Intl. Airport to Miami Intl. start at just £206 and range up to £14,746.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Ontario Intl. Airport and Miami
  • booking your flight during January, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Ontario Intl. Airport to Miami flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Ontario Intl. Airport to Miami Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Ontario Intl. Airport to Miami easily and book with confidence

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