Cheap flights from Ontario to Miami from $125
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Miami departing on 9/28. 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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Fly from
Fly to
Route
Depart
Return
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Mon 8/24
9:33 am-11:55 pm
1 stop11h 22m
Miami
Tue 9/1
8:00 am-7:01 pm
1 stop14h 01m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Fri 8/28
9:33 am-4:22 pm
1 stop27h 49m
Miami
Fri 9/4
8:10 am-11:50 pm
2 stops42h 40m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Mon 9/21
11:45 am-12:46 am
1 stop10h 01m
Miami
Wed 9/23
7:35 am-7:03 pm
2 stops14h 28m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Wed 9/2
7:05 am-6:42 pm
1 stop8h 37m
Miami
Wed 9/9
7:05 am-12:14 pm
1 stop8h 09m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Wed 9/2
7:05 am-6:42 pm
1 stop8h 37m
Miami
Tue 9/15
6:00 am-11:05 am
1 stop8h 05m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Tue 1/5
4:00 pm-6:31 am
1 stop11h 31m
Miami
Tue 1/12
5:00 pm-11:59 pm
1 stop9h 59m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Wed 9/9
8:35 am-9:55 pm
2 stops10h 20m
Miami
Sat 9/19
6:30 am-4:30 pm
2 stops13h 00m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Sat 10/17
5:45 am-5:20 pm
2 stops8h 35m
Miami
Wed 10/21
12:05 pm-9:40 pm
2 stops12h 35m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Tue 11/3
9:29 am-8:00 pm
1 stop7h 31m
Miami
Thu 11/26
4:45 pm-9:39 pm
1 stop7h 54m
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Fri 9/11
12:37 pm-11:18 pm
1 stop7h 41m
Miami
Sun 9/13
5:25 am-9:29 am
1 stop7h 04m
See travel insights to Miami from
How to get the cheapest flight ticket from Ontario to Miami
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 typical price of a round-trip flight between Ontario and Miami?
Prices are currently low for flights on this route.
Typical prices usually range from $325 to $427.The lowest price recently found on this route was $231.
What is the cheapest month to fly to Miami?
The month of September is, on average, the cheapest month to fly to Miami from Ontario, with most prices found around $344. If you are unable to visit Miami during the month of September, then departing from Ontario during the month August is also very affordable. Most momondo users find prices during this month for around $355.
What is the cheapest day to depart on your flight to Miami?
The cheapest day to depart from Ontario to Miami is on a Wednesday when prices can be found for as low as $564. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Miami on Sunday is $639.
What is the cheapest time of day to depart on your flight to Miami?
In the afternoon is the cheapest time of day to fly from Ontario to Miami when you can find flight prices for as low as $524. Flying to Miami in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $603. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight from Ontario to Miami?
You are more likely to see cheaper flights to Miami from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Miami for around $416 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Miami from Ontario for as low as $365 on momondo.
What is the cheapest airline that flies from Ontario to Miami?
Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Ontario to Miami
What airlines fly to Miami?
American Airlines, JetBlue and Delta are the top three most popular airlines that fly to Miami from Ontario according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Miami. Keep in mind that there are 6 different airlines that fly to Miami on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Ontario and Miami?
Dallas (DFW) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Ontario to Miami?
Flights via Houston (IAH) offer the lowest average round-trip price of $342.
Which layover airport has the shortest travel time from Ontario to Miami?
Flights connecting via Houston (IAH) have the shortest average one-way travel time: 6h 23m.
Which layover airport has the shortest connection time from Ontario to Miami?
Dallas (DFW) has the shortest average layover time for this route: 1h 01m.
When to book flights from Ontario to Miami
Cheap Ontario to Miami (ONT to MIA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Miami
Frequently asked questions about flying from Ontario to Miami
How far is Ontario to Miami by plane?
Ontario and Miami are 2299.8 mi apart from one another. By plane, this route typically takes 6h 54m.
When did momondo last update prices for flights from Ontario Airport to Miami Airport?
Prices for flights from Ontario Airport to Miami Airport are updated daily.
How many operators does momondo search for flights from Ontario Airport to Miami Airport?
As of August 2026, there are 6 operators available to choose from for flights from Ontario Airport to Miami Airport.
How old do you have to be to fly from Ontario Airport to Miami Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Miami Airport.
What documentation or ID do you need to fly to Miami Airport?
The travel and health documents required for your trip to Miami 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 Miami 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 Ontario to Miami?
Based on momondo bookings for flights between Ontario and Miami, the leading airline is American Airlines, making up 43% of the total bookings. Other popular airlines include United Airlines with 18%, Frontier with 14%, and Southwest with 12%.
Best airlines flying from Ontario to Miami
Compare and see reviews for airlines that fly from Ontario to Miami with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $145 | Free Cancellation | Rating 5.6 2,733 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 7.8 8,494 reviews | |||
| PriceFrom $213 | Free Cancellation | Rating 7.1 3,023 reviews | |||
| PriceFrom $325 | Free Cancellation | Rating 7.1 11,855 reviews | |||
| PriceFrom $326 | Free Cancellation | Rating 7.4 10,062 reviews | |||
| PriceFrom $356 | Free Cancellation | Rating 8.0 4,220 reviews |
Traveling to a place near Miami?
Book flights to Miami if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Miami?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Miami for you.
Can I find flights from Ontario to Miami with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Miami from Ontario with this policy.
How can momondo help me find flights from Ontario to Miami?
Once all potential Ontario to Miami 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 Ontario to Miami right now. Can momondo alert me if prices change?
Price alerts on flights to Miami from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.