$99+ Cheap flights from Miami to Ontario (MIA - ONT)
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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — ONT
Apr 11 — Apr 181
Round-trip
1 adult, Economy
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Find cheap flights from Miami to Ontario 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
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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 Miami to Ontario
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Cheapest flights from Miami to OntarioExplore the most affordable flight options available from Miami to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.
Explore the most affordable flight options available from Miami to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.
This Frontier deal was found by Cheapflights users on 3/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:42 am
MIA
- ONT
1 stop13h 07m
Frontier
Sun 4/266:15 am
ONT
- MIA
1 stop12h 52m
Frontier
Deal found 3/9![Frontier logo]()
$200
This Frontier deal was found by Cheapflights users on 3/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/910:39 am
MIA
- ONT
1 stop11h 06m
Frontier
Wed 4/157:44 pm
ONT
- MIA
1 stop8h 48m
Frontier
Deal found 3/9![Frontier logo]()
$201
This Gotogate deal was found by Cheapflights users on 3/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
MIA
- ONT
1 stop19h 56m
Frontier
Tue 4/147:44 pm
ONT
- MIA
1 stop8h 38m
Frontier
Deal found 3/8![Frontier logo]()
$206
This CheapOair deal was found by Cheapflights users on 3/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:42 am
MIA
- ONT
1 stop13h 07m
Frontier
Sat 5/212:59 am
ONT
- MIA
1 stop25h 06m
Frontier
Deal found 3/8![Frontier logo]()
$211
This Booking.com deal was found by Cheapflights users on 3/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
MIA
- ONT
1 stop19h 56m
Frontier
Tue 5/2612:59 am
ONT
- MIA
1 stop25h 49m
Frontier
Deal found 3/9![Frontier logo]()
$213
This Frontier deal was found by Cheapflights users on 3/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:42 am
MIA
- ONT
1 stop12h 52m
Frontier
Mon 5/185:33 pm
ONT
- MIA
1 stop8h 32m
Frontier
Deal found 3/9![Frontier logo]()
$216
This Frontier deal was found by Cheapflights users on 3/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:55 pm
MIA
- ONT
1 stop11h 42m
Frontier
Tue 5/52:44 pm
ONT
- MIA
1 stop13h 48m
Frontier
Deal found 3/8![Frontier logo]()
$221
This Frontier deal was found by Cheapflights users on 3/11. 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.
Sat 4/251:55 pm
MIA
- ONT
1 stop11h 42m
Frontier
Sat 5/27:44 pm
ONT
- MIA
1 stop8h 48m
Frontier
Deal found 3/11![Frontier logo]()
$222
This Frontier deal was found by Cheapflights users on 3/10. 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 4/910:39 am
MIA
- ONT
1 stop11h 06m
Frontier
Tue 4/147:44 pm
ONT
- MIA
1 stop8h 38m
Frontier
Deal found 3/10![Frontier logo]()
$223
This Frontier deal was found by Cheapflights users on 3/11. 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.
Thu 4/161:29 pm
MIA
- ONT
1 stop13h 26m
Frontier
Thu 4/236:15 am
ONT
- MIA
1 stop13h 49m
Frontier
Deal found 3/11![Frontier logo]()
$224
Best flights from Miami to OntarioDiscover carefully curated flight deals from Miami to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 12, 2026.
Discover carefully curated flight deals from Miami to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 12, 2026.
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 am
MIA
- ONT
1 stop8h 19m
Delta
Sun 5/3112:08 pm
ONT
- MIA
1 stop7h 43m
Delta
Deal found 3/11![Delta logo]()
$386
This Southwest deal was found by Cheapflights users on 3/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:40 am
MIA
- ONT
2 stops14h 30m
Southwest
Tue 3/318:30 am
ONT
- MIA
2 stops10h 45m
Southwest
Deal found 3/9![Southwest logo]()
$398
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Thu 3/192:21 pm
MIA
- ONT
1 stop10h 57m
United Airlines
Tue 3/245:15 am
ONT
- MIA
1 stop7h 28m
United Airlines
Deal found 3/7![United Airlines logo]()
$497
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/167:05 am
MIA
- ONT
1 stop7h 42m
Delta
Tue 3/2412:57 pm
ONT
- MIA
1 stop8h 55m
Delta
Deal found 3/9![Delta logo]()
$397
This Delta deal was found by Cheapflights users on 3/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:00 am
MIA
- ONT
1 stop8h 19m
Delta
Wed 6/1712:00 pm
ONT
- MIA
1 stop7h 45m
Delta
Deal found 3/8![Delta logo]()
$425
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:40 am
MIA
- ONT
2 stops13h 07m
United Airlines
Sat 4/186:05 am
ONT
- MIA
1 stop9h 23m
United Airlines
Deal found 3/9![United Airlines logo]()
$507
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:00 am
MIA
- ONT
1 stop8h 47m
Delta
Wed 4/112:57 pm
ONT
- MIA
1 stop8h 55m
Delta
Deal found 3/7![Delta logo]()
$433
This Delta deal was found by Cheapflights users on 3/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:00 am
MIA
- ONT
1 stop8h 19m
Delta
Mon 6/1510:59 pm
ONT
- MIA
1 stop7h 23m
Delta
Deal found 3/8![Delta logo]()
$471
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/196:55 am
MIA
- ONT
1 stop8h 28m
Delta
Sat 3/2110:25 pm
ONT
- MIA
1 stop7h 56m
Delta
Deal found 3/9![Delta logo]()
$518
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:55 am
MIA
- ONT
1 stop8h 28m
Delta
Sun 3/2912:57 pm
ONT
- MIA
1 stop8h 55m
Delta
Deal found 3/7![Delta logo]()
$528
Last-minute flights from Miami to OntarioDiscover last-minute flight deals from Miami to Ontario. Data last updated March 12, 2026 and is based on user searches.
Discover last-minute flight deals from Miami to Ontario. Data last updated March 12, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:39 am
MIA
- ONT
1 stop11h 06m
Frontier
Tue 4/76:20 am
ONT
- MIA
1 stop20h 29m
Frontier
Deal found 3/9![Frontier logo]()
$225
This Gotogate deal was found by Cheapflights users on 3/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
MIA
- ONT
1 stop19h 56m
Frontier
Tue 4/147:44 pm
ONT
- MIA
1 stop8h 38m
Frontier
Deal found 3/8![Frontier logo]()
$206
This Booking.com deal was found by Cheapflights users on 3/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
MIA
- ONT
1 stop19h 56m
Frontier
Tue 5/2612:59 am
ONT
- MIA
1 stop25h 49m
Frontier
Deal found 3/9![Frontier logo]()
$213
This Frontier deal was found by Cheapflights users on 3/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/910:39 am
MIA
- ONT
1 stop11h 06m
Frontier
Wed 4/157:44 pm
ONT
- MIA
1 stop8h 48m
Frontier
Deal found 3/9![Frontier logo]()
$201
This Frontier deal was found by Cheapflights users on 3/10. 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 4/910:39 am
MIA
- ONT
1 stop11h 06m
Frontier
Tue 4/147:44 pm
ONT
- MIA
1 stop8h 38m
Frontier
Deal found 3/10![Frontier logo]()
$223
This Frontier deal was found by Cheapflights users on 3/11. 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.
Thu 4/161:29 pm
MIA
- ONT
1 stop13h 26m
Frontier
Thu 4/236:15 am
ONT
- MIA
1 stop13h 49m
Frontier
Deal found 3/11![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 3/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:55 pm
MIA
- ONT
1 stop11h 42m
Frontier
Tue 5/52:44 pm
ONT
- MIA
1 stop13h 48m
Frontier
Deal found 3/8![Frontier logo]()
$221
This CheapOair deal was found by Cheapflights users on 3/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:42 am
MIA
- ONT
1 stop13h 07m
Frontier
Sat 5/212:59 am
ONT
- MIA
1 stop25h 06m
Frontier
Deal found 3/8![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 3/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:42 am
MIA
- ONT
1 stop13h 07m
Frontier
Sun 4/266:15 am
ONT
- MIA
1 stop12h 52m
Frontier
Deal found 3/9![Frontier logo]()
$200
This Frontier deal was found by Cheapflights users on 3/11. 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.
Sat 4/251:55 pm
MIA
- ONT
1 stop11h 42m
Frontier
Sat 5/27:44 pm
ONT
- MIA
1 stop8h 48m
Frontier
Deal found 3/11![Frontier logo]()
$222
One-way flights from Miami to OntarioSearch for one-way flight options from Miami to Ontario. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
Search for one-way flight options from Miami to Ontario. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
This Trip.com deal was found by Cheapflights users on 3/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
MIA
- ONT
1 stop19h 55m
Frontier
Deal found 3/9![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 3/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:42 am
MIA
- ONT
1 stop7h 58m
Frontier
Deal found 3/9![Frontier logo]()
$100
This Frontier deal was found by Cheapflights users on 3/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:40 am
MIA
- ONT
1 stop7h 53m
Frontier
Deal found 3/9![Frontier logo]()
$105
This Booking.com deal was found by Cheapflights users on 3/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:50 am
MIA
- ONT
1 stop21h 09m
Frontier
Deal found 3/9![Frontier logo]()
$106
This Frontier deal was found by Cheapflights users on 3/10. 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 4/910:39 am
MIA
- ONT
1 stop11h 06m
Frontier
Deal found 3/10![Frontier logo]()
$110
This CheapOair deal was found by Cheapflights users on 3/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:00 am
MIA
- ONT
1 stop19h 56m
Frontier
Deal found 3/9![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sat 5/95:05 am
MIA
- ONT
2 stops21h 50m
Frontier
Deal found 3/9![Frontier logo]()
$114
This Priceline deal was found by Cheapflights users on 3/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:34 am
MIA
- ONT
1 stop8h 04m
Frontier
Deal found 3/10![Frontier logo]()
$115
Find flight deals from Miami to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Miami (MIA) to Ontario (ONT). 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 March 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $200 (Frontier) |
One-way from | $99 (Trip.com) |
Popular in | November |
Cheapest in | August |
Average price | $416 |
Cheapflights Fare Finder
Customize your flight search to find flights from Miami to Ontario 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 March 12, 2026.
Use the filters below to find and compare flights from Miami to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MiamiOntario
MIA - ONT
MIAONT
Miami
Thu 5/28
7:00 am-12:19 pm
1 stop8h 19m
Ontario
Sun 5/31
12:08 pm-10:51 pm
1 stop7h 43m
$386
MiamiOntario
MIA - ONT
MIAONT
Miami
Mon 3/16
7:05 am-11:47 am
1 stop7h 42m
Ontario
Tue 3/24
12:57 pm-12:52 am
1 stop8h 55m
$397
MiamiOntario
MIA - ONT
MIAONT
Miami
Tue 3/24
11:40 am-11:10 pm
2 stops14h 30m
Ontario
Tue 3/31
8:30 am-10:15 pm
2 stops10h 45m
$398
MiamiOntario
MIA - ONT
MIAONT
Miami
Fri 6/5
7:00 am-12:19 pm
1 stop8h 19m
Ontario
Wed 6/17
12:00 pm-10:45 pm
1 stop7h 45m
$425
MiamiOntario
MIA - ONT
MIAONT
Miami
Thu 3/26
6:00 am-11:47 am
1 stop8h 47m
Ontario
Wed 4/1
12:57 pm-12:52 am
1 stop8h 55m
$433
Quickest round-trip
MiamiOntario
MIA - ONT
MIAONT
Miami
Thu 6/4
7:00 am-12:19 pm
1 stop8h 19m
Ontario
Mon 6/15
10:59 pm-9:22 am
1 stop7h 23m
$471
MiamiOntario
MIA - ONT
MIAONT
Miami
Thu 3/19
2:21 pm-10:18 pm
1 stop10h 57m
Ontario
Tue 3/24
5:15 am-3:43 pm
1 stop7h 28m
$497
MiamiOntario
MIA - ONT
MIAONT
Miami
Wed 4/15
7:40 am-5:47 pm
2 stops13h 07m
Ontario
Sat 4/18
6:05 am-6:28 pm
1 stop9h 23m
$507
MiamiOntario
MIA - ONT
MIAONT
Miami
Thu 3/19
6:55 am-12:23 pm
1 stop8h 28m
Ontario
Sat 3/21
10:25 pm-9:21 am
1 stop7h 56m
$518
MiamiOntario
MIA - ONT
MIAONT
Miami
Tue 3/24
6:55 am-12:23 pm
1 stop8h 28m
Ontario
Sun 3/29
12:57 pm-12:52 am
1 stop8h 55m
$528
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Miami to Ontario
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 Miami to Ontario in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Miami-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Miami-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Miami-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Miami-Ontario 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 Miami-Ontario 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 Miami to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Miami with our price prediction graph.
MIA-ONT
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 Miami to Ontario
Prices
Delays
How often are flights from Miami to Ontario delayed?
About 0% of weekly flights between Miami and Ontario have experienced delays in the past year, with the average delay time being 0 minutes.
What is the most punctual flight time for Miami to Ontario flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated March 12, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines from Miami to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Overall
8.0
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Related info for your journey
Find useful and relevant information for your journey from Miami to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Miami to Ontario
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Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 12, 2026.
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Top 3 airlines flying from Miami to Ontario
Discover the top 3 airlines that operate flights from Miami to Ontario. 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 March 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$298 | Average$375 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$326 | Average$508 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$336 | Average$416 | FlexibilityNo cancel fee | On-time69% |