MIA - ONT

$100 Find Cheap Flights from Miami to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$212
Typical prices: $338-$458
Frontier
Sat 11/10Sun 11/18
MIA - ONT • 1 stop
Cheapest one-way
$100
Typical prices: $177-$293
Frontier
Sun 11/18
MIA - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Miami and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
November
Cheapest • 19% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Houston George Bush Intcntl (IAH)
Cheapest • Avg $196 (round-trip)
Houston Hobby (HOU)
Shortest trip • 6h 49m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Miami to Ontario (MIA-ONT)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Miami to Ontario

Tue, Nov 10 - Wed, Nov 18
Frontier Logo
5:50 am - 11:51 pmMIA  Miami-ONT Ontario
21h 01m1 stop Denver Intl
Frontier Logo
11:52 am - 12:44 amONT  Ontario-MIA Miami
9h 52m1 stop Denver Intl
$212Frontier
Wed, Oct 28 - Tue, Nov 17
Frontier Logo
5:50 am - 10:35 amMIA  Miami-ONT Ontario
7h 45m1 stop Denver Intl
Frontier Logo
11:52 am - 12:44 amONT  Ontario-MIA Miami
9h 52m1 stop Denver Intl
$246Frontier
Mon, Jan 18 - Sat, Jan 23
Multiple Airlines Logo
4:47 pm - 10:00 amMIA  Miami-ONT Ontario
20h 13m1 stop Portland
Multiple Airlines Logo
6:30 am - 12:57 amONT  Ontario-MIA Miami
15h 27m1 stop Denver Intl
$382Multiple Airlines
Mon, Jan 11 - Sat, Jan 16
Multiple Airlines Logo
11:34 am - 6:15 pmMIA  Miami-ONT Ontario
9h 41m1 stop Dallas/Fort Worth
Multiple Airlines Logo
7:00 am - 5:07 pmONT  Ontario-MIA Miami
31h 07m1 stop Seattle/Tacoma Intl
$417Multiple Airlines
Tue, Feb 2 - Wed, Feb 10
Delta Logo
6:43 pm - 11:48 pmMIA  Miami-ONT Ontario
8h 05m1 stop Salt Lake City
Delta Logo
6:00 am - 5:23 pmONT  Ontario-MIA Miami
8h 23m1 stop Salt Lake City
$430Delta
Wed, Feb 3 - Tue, Feb 9
Delta Logo
7:00 am - 11:27 amMIA  Miami-ONT Ontario
7h 27m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:00 pm - 10:45 pmONT  Ontario-MIA Miami
7h 45m1 stop Atlanta Hartsfield-Jackson
$430Delta
Tue, Nov 10 - Wed, Nov 18
American Airlines Logo
5:33 pm - 10:57 pmMIA  Miami-ONT Ontario
8h 24m1 stop Dallas/Fort Worth
American Airlines Logo
12:42 pm - 12:05 amONT  Ontario-MIA Miami
8h 23m1 stop Dallas/Fort Worth
$433American Airlines
Wed, Dec 2 - Fri, Dec 4
American Airlines Logo
4:45 pm - 11:46 pmMIA  Miami-ONT Ontario
10h 01m1 stop Dallas/Fort Worth
American Airlines Logo
1:23 pm - 11:59 pmONT  Ontario-MIA Miami
7h 36m1 stop Phoenix Sky Harbor Intl
$455American Airlines
Mon, Jan 11 - Sat, Jan 16
Southwest Logo
12:20 pm - 6:30 pmMIA  Miami-ONT Ontario
9h 10m2 stops Austin Bergstrom Las Vegas Harry Reid Intl
Southwest Logo
1:45 pm - 11:40 amONT  Ontario-MIA Miami
18h 55m2 stops Las Vegas Harry Reid Intl Orlando
$457Southwest
Thu, Nov 19 - Thu, Dec 10
Southwest Logo
6:50 am - 4:10 pmMIA  Miami-ONT Ontario
12h 20m2 stops Orlando Phoenix Sky Harbor Intl
Southwest Logo
5:55 am - 4:45 pmONT  Ontario-MIA Miami
7h 50m2 stops Phoenix Sky Harbor Intl Dallas Love Field
$467Southwest
Booking Insights

Price, demand and travel trends for Miami to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Miami to Ontario?

Round-trip flights from Miami to Ontario typically range from $338 to $458. The lowest price found in the past 5 days was $212, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Miami to Ontario. It’s 12% cheaper than the average day, while Saturday is the most expensive, with prices 26% higher.

What’s the cheapest month to fly from Miami to Ontario?

•November is the cheapest month to fly from Miami to Ontario at $320 round-trip.
•March ($492) and January ($457) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 53% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Key details for Miami to Ontario flights

Low season

May

Cheapest flight

$100
Beat the crowds with an average 19% drop in travelers.
The most popular month to fly with an average 106% increase in travelers.
One-way 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

Your Miami to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Miami to Ontario?

    Only Economy Class is available on flights from Miami to Ontario.

  • How long is a flight from Miami to Ontario?

    A nonstop flight from Miami to Ontario takes 00m, covering 2,291 miles.

  • Do I need a passport to fly from Miami to Ontario?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Miami to Ontario flight?

    Round-trip flights from Miami to Ontario range from $338 to $458, with an average of $397 over the past 12 months. Anything below $338 counts as a good deal.

  • How are flight prices from Miami to Ontario looking right now?

    One-way fares from Miami to Ontario are currently lower than usual. Average one-way flight prices are about $195, which is 13% below the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

  • Which airports can I use when flying from Miami to Ontario?

    Flights from Miami to Ontario usually depart from Miami (MIA) and arrive at Ontario (ONT).

  • Which airports do connecting flights from Miami to Ontario pass through?

    One-stop flights from Miami to Ontario most commonly connect through:

    • Dallas/Fort Worth (DFW) - 40% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) - 36% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 12% of one-stop connections
    • Denver Intl (DEN) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Miami to Ontario?

    Yes. Flexible dates can save you up to 30% on flights from Miami to Ontario. Thursday is the cheapest departure day at $351 round-trip on average, while Saturday is the most expensive at $501, a difference of $150.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Miami to Ontario?

    Flying via Houston Hobby (HOU) gives the shortest average 1-stop total travel time at 6h 49m, compared with 7h 33m via Dallas/Fort Worth (DFW) and 7h 38m via Phoenix Sky Harbor Intl (PHX).

  • What is the time difference between Miami and Ontario?

    Ontario is 3 hours behind Miami (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Miami to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average $351, about $150 less than Saturday fares (30% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Miami to Ontario trip for November. Fares historically average $320 round-trip in that month - typically $172 less than the most expensive month, which is March (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • La Quinta Inn & Suites by Wyndham Ontario Airport
    • Ontario Airport Inn

More options for your flight from Miami to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario