Cheap flights from Miami to Ontario from $88
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Miami to Ontario departing on 5/28. 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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How to get the cheapest flight ticket from Miami to Ontario
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
What is the cheapest month to fly to Ontario?
In general, August is the cheapest month to fly from Miami to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $266. If you aren’t able to travel during the month of August, then book flights to Ontario from Miami during September instead. Flights to Ontario in September, while not as cheap as those in August, still average around $286.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $286. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Miami to Ontario for around $499.
What is the cheapest time of day to depart on your flight to Ontario?
In the afternoon is the cheapest time of day to fly from Miami to Ontario when you can find flight prices for as low as $294. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $437 on average. Flights to Ontario from Miami at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How have Miami to Ontario flight prices changed over time?
As of April 2025, prices for Miami to Ontario flights are approximately 19% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Miami to Ontario?
Frontier, American Airlines, and Delta are the most popular carriers operating from Miami to Ontario
What airlines fly to Ontario?
American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Ontario from Miami according to our data. American Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
When to book flights from Miami to Ontario
Cheap Miami to Ontario (MIA to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Miami to Ontario
How far is Miami to Ontario by plane?
A flight from Miami to Ontario will travel around 2299.8 mi. 6h 45m is a normal flight duration for this route.
When did momondo last update prices for flights from Miami Airport to Ontario Airport?
Prices for flights from Miami Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Miami Airport to Ontario Airport?
The number of operators available for flights from Miami Airport to Ontario Airport is 4 as of April 2025.
How old do you have to be to fly from Miami Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Miami Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario 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 Ontario 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 Miami to Ontario?
momondo data reveals that the most frequently booked airline on the route from Miami to Ontario is American Airlines, representing 64% of all bookings. The subsequent popular airlines are Frontier at 18%, United Airlines at 9%, and Delta at 9%.
Best airlines flying from Miami to Ontario
Compare and see reviews for airlines that fly from Miami to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $162 | Free Cancellation | Rating 5.9 3,283 reviews | |||
| PriceFrom $235 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $253 | Free Cancellation | Rating 8.0 7,920 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.4 8,685 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Miami to Ontario?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Miami.
Can I find flights from Miami to Ontario with flexible booking policies on momondo?
Flights from Miami to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Miami to Ontario?
Once all potential Miami to Ontario 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 Miami to Ontario right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Ontario from Miami. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.