Cheap flights from Miami to Ontario (MIA - ONT)

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The best prices from Miami to Ontario are usually found in April or May, booked 60 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

How to find the cheapest flight from
Miami (MIA) to Ontario (ONT)

All the information you need to plan the best MIA to ONT flight in 2022: compare Miami to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
MIA - ONT
Price
$169 - $443
ONT
Temperature
53.6 - 78.8 °F
ONT
Precipitation
0.1 - 3.4 inches

Popular in

December

High demand for flights, 35% potential price rise

Cheapest in

April

Best time to find cheap flights, 41% potential price drop

Round-trip from

$169

From Miami to Ontario

One-way from

$136

One-way flight from Miami to Ontario

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest month to fly from Miami to Ontario?

Flights from Miami to Ontario lean towards being more expensive in December. Prices are generally better when you fly from Miami to Ontario in August, with the cheapest ticket starting at $123.

How far in advance should I book a flight from Miami to Ontario?

To save up to 20% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Miami to Ontario from $313 1-2 weeks out and tickets from $339 for flights departing within the next 72 hours.

What is the cheapest day to fly round-trip from Miami to Ontario?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 32% when planning your travel around this day of the week.

When is the cheapest time to fly from Miami to Ontario (MIA - ONT)?

It’s typically best to fly out from Miami to Ontario in the evening. Doing so could potentially save you 26% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from Miami to Ontario in January, February 2022

The best prices found for MIA to ONT flights for January, February
25 Feb - 27 Feb
$99pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami
26 Jan - 29 Jan
$101pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami
29 Jan - 1 Feb
$104pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami

Miami to Ontario 2022 flight deals

Cheap flights to Ontario from Miami found for this year
25 Feb - 27 Feb
$99pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami
26 Jan - 29 Jan
$101pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami
29 Jan - 1 Feb
$104pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami

Last minute flights from Miami to Ontario

Late deals on round-trip flights to Ontario from Miami, departing today and this week
26 Jan - 29 Jan
$101pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami
22 Jan - 27 Jan
$114pp
MIA
Miami
Frontier
 
1 STOP
ONT
Ontario
ONT
Ontario
Frontier
 
1 STOP
MIA
Miami
25 Jan - 28 Jan
$117pp
MIA
Miami
Frontier
   
2 STOPS
ONT
Ontario
ONT
Ontario
Frontier
   
2 STOPS
MIA
Miami

One-way flights to Ontario from Miami

The cheapest one-way flights from Miami to Ontario
1:15 am - 7:20 pm
United Airlines
2 Stops
21h 05m
MIA - ONT
United Airlines
$136
United
5:10 am - 2:26 pm
American Airlines
2 Stops
12h 16m
MIA - ONT
American Airlines
6:50 am - 3:01 am
Multiple Airlines
2 Stops
23h 11m
MIA - ONT
Multiple Airlines
$141
FlightHub

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Miami</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From Miami to Ontario

Which airlines flying from Miami to Ontario have flexible cancellations due to COVID-19?

Some of our airline partners flying from Miami to Ontario have new flexible policies in place due to COVID-19. American Airlines, Delta, and Frontier are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like American Airlines with this kind of flexibility.

Can I find flights from Miami to Ontario for under $100 on Cheapflights?

Yes, there are multiple flights from Miami to Ontario for under $100. The cheapest flight booked recently is on Frontier for just $99, but on average you can expect to pay $140.

Are there last-minute flights available from Miami to Ontario for under $200?

There are currently 20+ open flights from Miami to Ontario within the next 7 days for less than $200.

What are the cheapest airlines flying from Miami to Ontario round-trip?

Currently priced at $99, Frontier will fly you from Miami to Ontario and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $156. Users have found that Frontier is 65% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Miami to Ontario one-way?

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $53. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Miami to Ontario for a low price.

What are the most popular airlines that fly from Miami to Ontario?

When booking a flight from Miami to Ontario, you may want to consider flying on American Airlines, JetBlue or Delta as they are the most popular for this route.

What are the cheapest flights from Miami to Ontario?

While on average a flight from Miami to Ontario is generally $199, our data shows the cheapest flight currently is $98. When looking at the most popular route, (Miami - Ontario), you can expect to pay $108 for that flight.

COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

Do I need a COVID test to fly to Ontario from Miami?

Information is based on travel restrictions for travel to Ontario within the United States

Most visitors from Miami need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from Miami must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Ontario.

Quarantine requirements
Visitors from Miami are not required to quarantine after entering Ontario.

Do I need a test to fly back to Miami from Ontario?

Returning to Miami from Ontario

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Miami.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Miami.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Miami to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Miami to Ontario.

Airports servicing Miami

Airports servicing Ontario

Top 4 airlines flying from Miami to Ontario

The chart below displays the airlines Cheapflights users traveling from Miami to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$97 $207 No cancel fee 62%
United Airlines
$120 $262 No cancel fee 69%
Delta
$137 $283 No cancel fee N/A
American Airlines
$160 $402 No cancel fee 71%

Hourly flight availability from Miami to Ontario

See what time of day planes typically take off from Miami towards Ontario.
Early morning Midnight to 6 AM 72% of MIA to ONT departures
Morning 6 AM to noon 14% of MIA to ONT departures
Afternoon Noon to 6 PM 14% of MIA to ONT departures
Evening 6 PM to midnight 0% of MIA to ONT departures
Midnight
6 AM
Noon
6 PM
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