$83+ Cheap flights from Ontario to Miami (ONT - MIA)
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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MIA
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Miami with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Miami
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Cheapest flights from Ontario to MiamiExplore the most affordable flight options available from Ontario to Miami. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
Explore the most affordable flight options available from Ontario to Miami. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:45 am -
1 stop10h 01m
Tue 9/155:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$168
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:45 am -
1 stop10h 01m
Mon 9/145:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$181
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:56 pm -
1 stop25h 50m
Tue 9/155:50 am -
1 stop20h 57m
Deal found 8/10![Frontier logo]()
$191
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:45 am -
1 stop10h 01m
Thu 9/175:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$194
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am -
1 stop19h 52m
Tue 9/86:00 am -
1 stop20h 50m
Deal found 8/10![Frontier logo]()
$204
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:33 am -
1 stop11h 22m
Sat 9/125:50 am -
1 stop7h 40m
Deal found 8/11![Frontier logo]()
$205
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:45 am -
1 stop10h 01m
Fri 9/115:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:33 am -
1 stop11h 22m
Tue 9/86:00 am -
1 stop20h 50m
Deal found 8/11![Frontier logo]()
$214
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:59 am -
1 stop24h 34m
Fri 9/1111:25 am -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$223
This CheapOair deal was found by Cheapflights users on 8/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:15 am -
1 stop15h 31m
Mon 10/55:50 am -
1 stop20h 57m
Deal found 8/11![Frontier logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:33 am -
1 stop11h 22m
Fri 9/1111:25 am -
1 stop9h 23m
Deal found 8/9![Frontier logo]()
$236
Best flights from Ontario to MiamiDiscover carefully curated flight deals from Ontario to Miami that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from Ontario to Miami that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This Delta deal was found by Cheapflights users on 8/10. 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 9/812:17 pm -
1 stop9h 38m
Tue 9/152:15 pm -
1 stop9h 09m
Deal found 8/10![Delta logo]()
$280
This Southwest deal was found by Cheapflights users on 8/10. 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.
Wed 9/98:35 am -
2 stops10h 20m
Fri 9/116:20 am -
2 stops10h 40m
Deal found 8/10![Southwest logo]()
$435
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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.
Thu 9/1012:12 pm -
1 stop26h 01m
Mon 9/146:16 pm -
2 stops24h 54m
Deal found 8/7![Alaska Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 11/56:00 am -
1 stop9h 20m
Mon 11/97:30 am -
1 stop8h 03m
Deal found 8/10![United Airlines logo]()
$539
This Southwest deal was found by Cheapflights users on 8/10. 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.
Thu 11/58:05 am -
2 stops11h 10m
Mon 11/96:05 am -
2 stops13h 35m
Deal found 8/10![Southwest logo]()
$467
This KAYAK deal was found by Cheapflights users on 8/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:03 pm -
1 stop10h 19m
Thu 10/297:00 am -
1 stop8h 21m
Deal found 8/6![Delta logo]()
$474
This Southwest deal was found by Cheapflights users on 8/6. 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 9/118:10 am -
2 stops11h 00m
Mon 9/145:45 am -
2 stops10h 40m
Deal found 8/6![Southwest logo]()
$487
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Wed 8/265:00 am -
1 stop7h 56m
Mon 8/315:01 pm -
1 stop7h 58m
Deal found 8/7![United Airlines logo]()
$541
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sun 1/106:53 pm -
1 stop9h 54m
Sat 1/237:29 am -
1 stop10h 58m
Deal found 8/7![United Airlines logo]()
$545
This Southwest deal was found by Cheapflights users on 8/8. 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 9/255:15 am -
2 stops13h 45m
Fri 10/27:10 am -
2 stops10h 15m
Deal found 8/8![Southwest logo]()
$533
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sat 8/225:00 am -
1 stop7h 56m
Mon 8/244:58 pm -
1 stop9h 01m
Deal found 8/7![United Airlines logo]()
$555
This United Airlines deal was found by Cheapflights users on 8/7. 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 8/255:00 am -
2 stops14h 34m
Sun 8/305:01 pm -
1 stop7h 58m
Deal found 8/7![United Airlines logo]()
$610
Last-minute flights from Ontario to MiamiDiscover last-minute flight deals from Ontario to Miami. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Miami. Data last updated August 11, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:33 am -
1 stop11h 22m
Tue 9/86:00 am -
1 stop20h 50m
Deal found 8/11![Frontier logo]()
$214
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am -
1 stop19h 52m
Tue 9/86:00 am -
1 stop20h 50m
Deal found 8/10![Frontier logo]()
$204
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:59 am -
1 stop24h 34m
Fri 9/1111:25 am -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$223
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:56 pm -
1 stop29h 56m
Fri 9/1111:25 am -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$243
This Trip.com deal was found by Cheapflights users on 8/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:33 am -
1 stop11h 22m
Sat 9/125:50 am -
1 stop7h 40m
Deal found 8/11![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:33 am -
1 stop11h 22m
Fri 9/1111:25 am -
1 stop9h 23m
Deal found 8/9![Frontier logo]()
$236
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:56 pm -
1 stop25h 50m
Tue 9/155:50 am -
1 stop20h 57m
Deal found 8/10![Frontier logo]()
$191
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:45 am -
1 stop10h 01m
Mon 9/145:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:45 am -
1 stop10h 01m
Fri 9/115:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:45 am -
1 stop10h 01m
Thu 9/175:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$194
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:45 am -
1 stop10h 01m
Tue 9/155:50 am -
1 stop7h 40m
Deal found 8/10![Frontier logo]()
$168
One-way flights from Ontario to MiamiSearch for one-way flight options from Ontario to Miami. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
Search for one-way flight options from Ontario to Miami. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Super.com deal was found by Cheapflights users on 8/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:45 am -
1 stop10h 01m
Deal found 8/11![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:45 am -
1 stop10h 01m
Deal found 8/10![Frontier logo]()
$84
This Super.com deal was found by Cheapflights users on 8/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:45 am -
1 stop10h 01m
Deal found 8/11![Frontier logo]()
$96
This Frontier deal was found by Cheapflights users on 8/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:45 am -
1 stop10h 01m
Deal found 8/10![Frontier logo]()
$97
This Super.com deal was found by Cheapflights users on 8/11. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am -
1 stop19h 52m
Deal found 8/11![Frontier logo]()
$101
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:56 pm -
1 stop25h 50m
Deal found 8/10![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:45 am -
2 stops23h 54m
Deal found 8/7![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/69:33 am -
1 stop11h 22m
Deal found 8/7![Frontier logo]()
$119
Find flight deals from Ontario to Miami
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Miami (MIA). 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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $168 (Frontier) |
One-way from | $83 (Super.com) |
Popular in | December |
Cheapest in | September |
Average price | $352 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Miami 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 August 11, 2026.
Use the filters below to find and compare flights from Ontario to Miami that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Tue 9/8
12:17 pm-12:55 am
1 stop9h 38m
Miami
Tue 9/15
2:15 pm-8:24 pm
1 stop9h 09m
$280
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Wed 9/9
8:35 am-9:55 pm
2 stops10h 20m
Miami
Fri 9/11
6:20 am-2:00 pm
2 stops10h 40m
$435
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Thu 11/5
8:05 am-10:15 pm
2 stops11h 10m
Miami
Mon 11/9
6:05 am-4:40 pm
2 stops13h 35m
$467
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Thu 9/10
12:12 pm-5:13 pm
1 stop26h 01m
Miami
Mon 9/14
6:16 pm-4:10 pm
2 stops24h 54m
$471
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Mon 10/26
5:03 pm-6:22 am
1 stop10h 19m
Miami
Thu 10/29
7:00 am-12:21 pm
1 stop8h 21m
$474
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Fri 9/11
8:10 am-10:10 pm
2 stops11h 00m
Miami
Mon 9/14
5:45 am-1:25 pm
2 stops10h 40m
$487
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Fri 9/25
5:15 am-10:00 pm
2 stops13h 45m
Miami
Fri 10/2
7:10 am-2:25 pm
2 stops10h 15m
$533
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Thu 11/5
6:00 am-6:20 pm
1 stop9h 20m
Miami
Mon 11/9
7:30 am-12:33 pm
1 stop8h 03m
$539
Quickest round-trip
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Wed 8/26
5:00 am-3:56 pm
1 stop7h 56m
Miami
Mon 8/31
5:01 pm-9:59 pm
1 stop7h 58m
$541
OntarioMiami
ONT Ontario - MIA Miami
ONTMIA
Ontario
Sun 1/10
6:53 pm-7:47 am
1 stop9h 54m
Miami
Sat 1/23
7:29 am-3:27 pm
1 stop10h 58m
$545
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Ontario to Miami
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 Ontario to Miami in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Miami flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Miami flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Miami flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Miami 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 Ontario-Miami 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 Ontario to Miami
Have a flexible travel schedule? Discover the best time to fly to Miami from Ontario with our price prediction graph.
ONT-MIA
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.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Miami
Prices
More
How far ahead should I book a flight from Ontario to Miami?
Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Miami. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Ontario to Miami?
Currently, September is the cheapest month in which you can book a flight from Ontario to Miami (average of $344). Flying from Ontario to Miami in December is currently the most expensive (average of $526). 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.
How much does it cost to fly round-trip from Ontario to Miami?
Airfare is below average for this route at the moment.
Ontario to Miami flights typically cost between $311 and $427 in September.The cheapest round-trip price found within the last 5 days was $168 on Frontier (Sep 12-Sep 15).
What’s the top layover airport for flights from Ontario to Miami?
Share of 1-stop round-trip flights from Ontario to Miami chosen by Cheapflights users in the past 12 months, using the same layover each way.
Dallas (DFW) – chosen by Cheapflights users on 30% of 1-stop itineraries from Ontario to Miami on Cheapflights.
What’s the cheapest layover airport for flights from Ontario to Miami?
Average round-trip fare for 1-stop flights from Ontario to Miami, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $346.
What’s the fastest layover option from Ontario to Miami?
Shortest average travel time for 1-stop one-way flights from Ontario to Miami, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for 1-stop routes: 7h 27m.
Which airport typically offers the quickest layover for flights from Ontario to Miami?
Average layover duration for 1-stop one-way flights from Ontario to Miami, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 34m.
Reviews of airlines servicing Miami
Get insights into the airlines that provide service to Miami. 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 Miami. Reviews last updated August 11, 2026.
Read through reviews of airlines operating flights from Ontario to Miami, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Miami. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Miami?
Book flights to Miami if you plan to visit one of these locationsSunny Isles Beach
Hollywood
Dania Beach
Miami Springs
Boynton Beach
Miramar
Plantation
Sunrise
Doral
Hialeah
Lake Worth
Kendall
Tamarac
Palm Beach
Fisher Island
Bonita Springs
Deerfield Beach
Marathon
North Palm Beach
Oakland Park
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Ontario to Miami
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Complete your trip
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Search flights from Ontario to Miami by cabin class
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Other flights to Miami
Explore flights to Miami departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
Ontario and Miami flights
Browse other Ontario and Miami flight options. Last updated on August 11, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Ontario to Miami
Discover the top 6 airlines that operate flights from Ontario to Miami. 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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$145 | Average$288 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$362 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$213 | Average$440 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$325 | Average$446 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$326 | Average$407 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$356 | Average$495 | FlexibilityNo cancel fee | On-time63% |