Cheap Flights from Ontario, CA to Miami, FL from $129

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On Cheapflightsplus.com you will find 174 connecting flights from Ontario to Miami. You can compare airfare deals from 4 airlines and multiple travel sites from $129, book and save on cheap plane tickets and last minute offers. Also check out ONT-MIA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to Miami Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $129 (one-way), $221 (round-trip).

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Best Flights from Ontario to Miami Today

Take a look at the list of non stop flights and flights with layovers from Ontario to Miami with the lowest price of $129. Take a look at the list of flights with layovers from Ontario to Miami from $129. There’re no direct flights. The fastest connecting flight – 6h 42m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $129 Find flight	00:59 Ontario Ontario Int.	06:19+1 день Miami Miami Intl	26h 20m layover 20h 14m - Denver	Frontier Airlines	F91500 F93138
from $158 Find flight	20:09 Ontario Ontario Int.	09:28+1 день Miami Miami Intl	10h 19m layover 4h 6m - Dallas	Frontier Airlines	F92924 F92676
from $209 Find flight	06:00 Ontario Ontario Int.	20:35 Miami Miami Intl	11h 35m layover 0h 43m - Seattle 1h 8m - Dallas	Alaska Airlines	AS1091 AS426 AS4512
from $209 Find flight	05:10 Ontario Ontario Int.	22:15 Miami Miami Intl	14h 5m layover 2h 53m - Denver 3h 49m - Houston	United Airlines	UA1479 UA738 UA1829

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on September 15, 2025

Flight Schedule Ontario (California) to Miami (Florida)

Full flight schedule will help you in detecting at what time planes fly from Ontario to Miami. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
00:59 — 06:19 +1 day	00:59 — 04:19 F91500 Frontier Airlines Ontario — Denver 20h 14m stop 00:34 — 06:30 F93138 Frontier Airlines Denver — Miami	26h 20m including layover	Find flight from$129
05:10 — 15:44	05:10 — 08:27 UA2446 United Airlines Ontario — Denver 1h 17m stop 09:44 — 15:44 UA1418 United Airlines Denver — Miami	7h 34m including layover	Find flight from$201
05:10 — 15:45	05:10 — 08:27 UA1479 United Airlines Ontario — Denver 1h 18m stop 09:45 — 15:45 UA1418 United Airlines Denver — Miami	7h 35m including layover	Find flight from$204
06:00 — 05:45 +1 day	06:00 — 07:13 F92232 Frontier Airlines Ontario — Las Vegas 14h 35m stop 21:48 — 05:45 F94552 Frontier Airlines Las Vegas — Miami	20h 45m including layover	Find flight from$145
06:00 — 17:33	06:00 — 07:19 UA2647 United Airlines Ontario — San Francisco 1h 36m stop 08:55 — 17:33 UA410 United Airlines San Francisco — Miami	8h 33m including layover	Find flight from$204
06:04 — 15:46	06:00 — 11:15 UA1936 United Airlines Ontario — Houston 51m stop 12:04 — 15:51 UA2105 United Airlines Houston — Miami	6h 42m including layover	Find flight from$201
13:15 — 23:44	13:15 — 16:32 UA1417 United Airlines Ontario — Denver 1h 12m stop 17:44 — 23:44 UA1356 United Airlines Denver — Miami	7h 29m including layover	Find flight from$201
13:19 — 23:44	13:15 — 16:32 UA1697 United Airlines Ontario — Denver 1h 8m stop 17:44 — 23:44 UA1446 United Airlines Denver — Miami	7h 25m including layover	Find flight from$204
13:31 — 17:26 +1 day	12:00 — 14:38 HA6289 Hawaiian Airlines Ontario — Seattle 16h 16m stop 08:25 — 17:20 HA6785 Hawaiian Airlines Seattle — Miami	24h 55m including layover	Find flight from$200
17:14 — 05:45 +1 day	17:14 — 18:28 F91358 Frontier Airlines Ontario — Las Vegas 3h 20m stop 21:48 — 05:45 F94552 Frontier Airlines Las Vegas — Miami	9h 31m including layover	Find flight from$140
17:21 — 06:30 +1 day	17:21 — 20:44 F92908 Frontier Airlines Ontario — Denver 3h 50m stop 00:34 — 06:30 F93138 Frontier Airlines Denver — Miami	10h 9m including layover	Find flight from$140
19:22 — 17:31 +1 day	18:58 — 21:37 AS1087 Alaska Airlines Ontario — Seattle 10h 20m stop 08:25 — 17:20 AS305 Alaska Airlines Seattle — Miami	19h 9m including layover	Find flight from$208
19:25 — 17:26 +1 day	18:58 — 21:37 HA6287 Hawaiian Airlines Ontario — Seattle 10h 25m stop 08:25 — 17:20 HA6785 Hawaiian Airlines Seattle — Miami	19h 1m including layover	Find flight from$200
19:36 — 05:45 +1 day	19:36 — 20:45 F94758 Frontier Airlines Ontario — Las Vegas 1h 3m stop 21:48 — 05:45 F94552 Frontier Airlines Las Vegas — Miami	7h 9m including layover	Find flight from$140
20:09 — 09:28 +1 day	20:09 — 01:24 F92924 Frontier Airlines Ontario — Dallas 4h 6m stop 05:30 — 09:28 F92676 Frontier Airlines Dallas — Miami	10h 19m including layover	Find flight from$158

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on September 15, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Ontario to Miami depends on and how to choose the most interesting flight option for you.

Distance between Ontario and Miami is 3689 miles. Time difference between the cities is 3h. Airplanes depart 00:59 to 20:09 from 2 Ontario airports and arrive 00:59 to 20:09 to 3 Miami airports. Average flight time is 18h 10m.

The fastest flight 6h 42m
Average flight time 18h 10m
The earliest flight 00:59
The latest flight 20:09
Distance 2293 ml

The cheapest months to travel to Miami are september (from 129 $), july (from 140 $), august (from 140 $).

The most expensive months are october (from 200 $), august (from 140 $), july (from 140 $).

What is the lowest airfare Ontario to Miami?

The cheapest plane ticket found by our users is $129. This airfare is for economy class on one-way F91500 flight by Frontier Airlines for September 27, 2025 which leaves Ontario Int. in Ontario at 00:59 am and arrives at Miami Miami Intl at 06:19.

Economy class

$129

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Business class

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First class

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Popular Airlines on the Route

The flight Ontario — Miami is served by 4 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Alaska Airlines - 36 departures per week at the price of from $ 208 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 8464.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 174 flights with layovers on the route. The fastest connecting flight is UA1936 by United Airlines takes 6h 42m and the cheapest is F91500 by Frontier Airlines for $129.

AS - Alaska Airlines

from $208

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F9 - Frontier Airlines

from $129

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HA - Hawaiian Airlines

from $200

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UA - United Airlines

from $201

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Airports

You can fly from Ontario to Miami from 2 airports (Ontario Int., International Heliport).

Ontario airports

Ontario Int.-ONT

from $129
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International Heliport-JIO

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Miami airports

Miami Intl-MIA

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Palm Beach Intl-PBI

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Miami Int.-FLL

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Airplanes

There are flights to Miami from Ontario by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Ontario

You may also consider searching for discounted plane tickets to some other popular places from Ontario within United States.

Ontario — Phoenix

from $56

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Ontario — Denver

from $65

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Ontario — Austin

from $67

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Ontario — Miami

from $62

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Ontario — Tucson

from $80

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Ontario — Las Vegas

from $63

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Ontario — Seattle

from $65

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Ontario — Boise

from $70

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Ontario — Chicago

from $78

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Ontario — Philadelphia

from $62

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Top International Destinations from Ontario

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Ontario — London

from $62

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Ontario — San Jose

from $61

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Ontario — Guadalajara

from $70

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Ontario — Cancun

from $74

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How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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