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MIA - ONT

Find cheap flights from Miami to Ontario from $86

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Miami to Ontario departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 5/25
Sat 6/1

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Miami to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Miami to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 45,119,101 times on KAYAK, and here is why:

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Cheap flight deals from Miami to Ontario (MIA-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Miami to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:01 am - 11:59 pmMIA-ONT
18h 58m1 stop
12:59 am - 12:32 amONT-MIA
20h 33m1 stop
$184Frontier
Find Deal
Fri, May 17 - Sun, May 19
10:14 pm - 6:31 amMIA-ONT
11h 17m1 stop
7:26 am - 1:50 amONT-MIA
15h 24m1 stop
$185Frontier
Find Deal
Sat, May 11 - Wed, May 15
7:25 am - 11:44 amMIA-ONT
7h 19m1 stop
11:59 pm - 9:58 amONT-MIA
6h 59m1 stop
$228American Airlines
Find Deal
Thu, Aug 22 - Mon, Aug 26
7:25 am - 11:44 amMIA-ONT
7h 19m1 stop
11:59 pm - 9:58 amONT-MIA
6h 59m1 stop
$236American Airlines
Find Deal
Thu, Aug 15 - Mon, Aug 19
6:00 am - 11:32 amMIA-ONT
8h 32m1 stop
12:50 pm - 12:49 amONT-MIA
8h 59m1 stop
$256Delta
Find Deal
Sat, May 4 - Tue, May 7
6:15 pm - 10:47 pmMIA-ONT
7h 32m1 stop
10:00 pm - 11:23 amONT-MIA
10h 23m2 stops
$261Delta
Find Deal
Thu, May 16 - Mon, May 20
5:05 pm - 9:21 pmMIA-ONT
7h 16m1 stop
5:45 am - 3:34 pmONT-MIA
6h 49m1 stop
$325United Airlines
Find Deal
Tue, Oct 15 - Tue, Oct 29
3:36 pm - 8:53 pmMIA-ONT
8h 17m1 stop
5:15 am - 4:14 pmONT-MIA
7h 59m1 stop
$447United Airlines
Find Deal
Tue, May 7 - Tue, May 14
1:40 pm - 11:59 pmMIA-ONT
13h 19m1 stop
6:55 pm - 4:13 pmONT-MIA
18h 18m2 stops
Thu, May 30 - Mon, Jun 3
8:20 am - 10:00 pmMIA-ONT
40h 40m3 stops
11:30 pm - 1:55 pmONT-MIA
11h 25m2 stops
Wed, May 15 - Sun, May 19

Flights from Miami to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Miami to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Miami to Ontario?

The average price of all flights from Miami to Ontario clicked on KAYAK for each day over the last 12 months.
When flying from Miami to Ontario, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Miami, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

What is the cheapest month to fly from Miami to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Miami to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Miami to Ontario is October, where tickets cost $270 on average. On the other hand, the most expensive months are April and June, where the average cost of tickets is $563 and $547 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Miami to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Miami to Ontario, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 61 days before departure.

Which airlines provide the cheapest flights from Miami to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Miami to Ontario found on KAYAK was with Frontier for $86. Frontier proposed a round-trip connection from $184 and American Airlines from $228.

Good to know

Low season

June

High season

August

Cheapest flight

$86
Best time to beat the crowds but there is an average 38% increase in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Miami to Ontario

When to book flights from Miami to Ontario

Are your dates flexible? Find out the best times to travel from Miami to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Miami to Ontario

  • What is the cheapest flight from Miami to Ontario?

    In the last 3 days, the lowest price for a flight from Miami to Ontario was $86 for a one-way ticket and $184 for a round-trip.

  • Do I need a passport to fly between Miami and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Miami to Ontario?

    Miami and Ontario are both served by 1 main airport. You will leave Miami from Miami and will be arriving at Ontario.

  • Which aircraft models fly most regularly from Miami to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Miami to Ontario?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Miami and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Miami to Ontario, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Miami to Ontario are Delta and United Airlines. With an average price for the route of $336 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $430 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Miami to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Miami to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Miami to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Miami is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Miami to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Miami with another airline. Booking your flights between Miami and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Miami to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Miami up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Miami to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Miami to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Miami to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 11004 reviews
8.2boarding
8.6crew
7.9comfort
7.5food
8.0entertainment
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

The main person that was coordinating everything was a short white/light skin Spanish man and he was very rude. It honestly made me feel like it was everyone’s First day at work. His announcements were very not reasonable and they did not make sense. The stewardess on the flight that made the announcements she didn’t even know what she was talking about she sounded inebriated. There were no snacks or drinks on our flight there wasn’t even much turbulence. This flight was not enjoyable nor was it what a Delta flight should be and just this past week I flew with Delta 3 times.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Too many fees (but that seems to apply to all airlines nowadays)

For a 22 minute flight all you expect is for it to be safe and comfortable

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

Over two hours wait to get wheelchair assistance from arrival to the departure gate for LA was unreasonable even though there appreared to be heavy demand.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

Horrible people at the gate, they force me to check in my carry on, even thought no one behind me has to do it. I had to get out of the airport in NY to get my bag and go thru security again on my way to Honk Kong. The worst part is the employee threatened me with loosing the flights if don’t comply.

Horrible. Flight was delayed and very bumpy. I was super unhappy

The agents at the gate were rude. The stwards were pleasant. The seats were comfortable. The tray table had crumbs on it. A passenger talked constantlt and very loudly for the entire flight annoying many passengers. The stewards did not ask her to speak in a lower voice but my travel partner did.

Literally the worst experience ever and I had my service dog with me. Flight was supposed to leave at 1:51 PM but the plane arrived late. They boarded us around 3 PM and kept us on the plane for an hour saying that due to weather conditions in Miami, we could not takeoff yet. After waiting for an hour, they deplaned. And then they will not give us our bags back that we could just leave and schedule for another flight. Every hour they kept updating saying we have to wait another hour without any explanation as to what was going on. Eventually, I went to customer service to change my ticket, but by the time I made it to the front of the line, they started boarding my flight again. And then when we got onto the flight, they said there were two flight attendants That were past their shift. They kept us on the plane for about another 40 minutes until they told us they had no other flight attendance and had to deplane again. Then I gave us hotel vouchers and told us we would be on a flight at 6 AM the next day. At this point it is about 9 PM. I get to the hotel with my dog, who hasn’t been able to go potty for about eight hours. When I arrived at the hotel, I got a text alert saying my flight has been canceled at 6 AM and they moved past to 5 AM, however the hotel shuttle doesn’t leave early enough to make it to the airport for 5 AM flight. So me and some other passengers got a cab after about three hours of sleep to get back to the airport. This was the worst experience ever.

One of the worst flights I have ever taken Delayed over an hour without communication from the crew; very scary Entertainment not working Crew NASTY cabin cold

May never fly American again Delay in take off WITHOUT EXPLANATION Cabin freezing Crew NASTY entertainment did not work entire flight

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

Flight was delayed due to crew not being there, besides that it was a normal flight.

We were re routed due to a flight cancellation. We did not fly out of Miami. We originally booked first class and were moved to coach without being compensated.

2.5h delay due to unruly passenger in first class. Had to be removed from the flight. No food unless pre ordered. Didn't know we would need it because of delay.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

The boarding time. I was in Section 1 the lady in charge just let people in section 3 without see us. Make a line , I have to step out and ask her. We were in the line and she just take my ticket and that’s it, so if I don’t ask her she could leave us at the end! We paid more for that privilege and. She doesn’t care….

See my previous comment which is mostly about our flight from Phoenix to SFO

The check in at the airport was awful. Told I need to pay for a bag. The item was taken at screening. I went back to get my $ back and they gave me a coupon with a QR code that doesn’t work. Worst costumer service ever!!!!!

4 hour delay because they used our aircraft to fly a different segment (per the captain)

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

I had to cancel within 1hour of the reservation an they put you through hell to . no live customer service desk. I'm handy caped and they make it almost impossible to cancel. They are steeling my money. You should not have that airline on your site. Contact me and I will give you all info. Of what the are doing to me just notable treatment they are set up like that to take people

they charge too much when you arrive in the air port

absolutely horrific. delayed flights, overbooking. over charging. nightmare service beyond words. stay away.

Book cheap flights from Miami to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Miami to Ontario found on KAYAK in the last 72 hours.
5/4Sat
1 stopFrontier
11h 17mMIA-ONT
$86
5/1Wed
1 stopFrontier
11h 12mMIA-ONT
$87
5/30Thu
1 stopAmerican Airlines
7h 30mMIA-ONT
$99
6/1Sat
1 stopAmerican Airlines
6h 58mMIA-ONT
$102
5/15Wed
1 stopDelta
7h 40mMIA-ONT
$128
4/29Mon
1 stopDelta
8h 34mMIA-ONT
$142
10/2Wed
2 stopsUnited Airlines
12h 56mMIA-ONT
$184
5/2Thu
2 stopsAlaska Airlines
12h 15mMIA-ONT
$192
4/29Mon
2 stopsAlaska Airlines
13h 15mMIA-ONT
$197
10/5Sat
2 stopsUnited Airlines
12h 56mMIA-ONT
$224

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Last minute flights from Miami to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Miami to Ontario that are departing in the next 10 days.
4/27Sat
multi-stopFrontier
11h 17mMIA-ONT
5/3Fri
multi-stopFrontier
26h 08mONT-MIA
$208
4/30Tue
multi-stopFrontier
11h 41mMIA-ONT
5/14Tue
multi-stopFrontier
19h 47mONT-MIA
$231
4/26Fri
multi-stopAmerican Airlines
7h 28mMIA-ONT
4/30Tue
multi-stopAmerican Airlines
9h 14mONT-MIA
$241
4/27Sat
multi-stopAmerican Airlines
8h 21mMIA-ONT
4/29Mon
multi-stopAmerican Airlines
7h 55mONT-MIA
$281
4/26Fri
multi-stopDelta
8h 22mMIA-ONT
4/30Tue
multi-stopDelta
11h 55mONT-MIA
$289
4/26Fri
multi-stopDelta
12h 03mMIA-ONT
4/30Tue
multi-stopDelta
11h 55mONT-MIA
$294
4/26Fri
multi-stopUnited Airlines
8h 04mMIA-ONT
4/30Tue
multi-stopUnited Airlines
15h 14mONT-MIA
$367
4/30Tue
multi-stopUnited Airlines
7h 55mMIA-ONT
5/14Tue
multi-stopUnited Airlines
7h 17mONT-MIA
$379
4/30Tue
multi-stopAlaska Airlines
14h 39mMIA-ONT
5/4Sat
multi-stopAlaska Airlines
20h 21mONT-MIA
$808
4/30Tue
multi-stopAlaska Airlines
14h 17mMIA-ONT
5/14Tue
multi-stopAlaska Airlines
31h 21mONT-MIA
$970

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Miami - Ontario Flights

Departure:

Miami (MIA)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Miami

Cabin classes: