$85+ Cheap flights from Ontario to Miami (ONT - MIA)
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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MIA
Jun 2 — Jun 91
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Miami 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Ontario to Miami
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Cheapest flights from Ontario to MiamiExplore the most affordable flight options available from Ontario to Miami. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 3, 2026.
Explore the most affordable flight options available from Ontario to Miami. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 3, 2026.
This CheapOair deal was found by Cheapflights users on 5/2. 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.
Sat 5/235:59 pm
ONT
- MIA
1 stop27h 45m
Frontier
Wed 5/276:30 am
MIA
- ONT
1 stop20h 19m
Frontier
Deal found 5/2![Frontier logo]()
$230
This CheapOair deal was found by Cheapflights users on 4/30. 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.
Sun 5/318:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Fri 6/59:15 am
MIA
- ONT
1 stop25h 33m
Frontier
Deal found 4/30![Frontier logo]()
$231
This Booking.com deal was found by Cheapflights users on 4/30. 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.
Sat 5/169:15 am
ONT
- MIA
1 stop9h 30m
Frontier
Mon 5/258:03 pm
MIA
- ONT
1 stop15h 01m
Frontier
Deal found 4/30![Frontier logo]()
$232
This CheapOair deal was found by Cheapflights users on 5/1. 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.
Sat 5/235:59 pm
ONT
- MIA
1 stop27h 45m
Frontier
Sat 5/308:03 pm
MIA
- ONT
1 stop15h 01m
Frontier
Deal found 5/1![Frontier logo]()
$235
This CheapOair deal was found by Cheapflights users on 4/29. 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 5/126:00 am
ONT
- MIA
1 stop20h 38m
Frontier
Fri 5/156:00 am
MIA
- ONT
1 stop29h 20m
Frontier
Deal found 4/29![Frontier logo]()
$236
This Frontier deal was found by Cheapflights users on 4/30. 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.
Mon 5/186:00 am
ONT
- MIA
1 stop20h 38m
Frontier
Wed 5/276:30 am
MIA
- ONT
1 stop20h 19m
Frontier
Deal found 4/30![Frontier logo]()
$237
This CheapOair deal was found by Cheapflights users on 5/3. 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 5/2010:50 am
ONT
- MIA
1 stop15h 48m
Frontier
Sun 5/248:03 pm
MIA
- ONT
1 stop15h 01m
Frontier
Deal found 5/3![Frontier logo]()
$240
This CheapOair deal was found by Cheapflights users on 5/1. 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.
Fri 5/228:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Wed 6/36:30 am
MIA
- ONT
1 stop20h 19m
Frontier
Deal found 5/1![Frontier logo]()
$241
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Mon 5/116:00 am
ONT
- MIA
1 stop20h 38m
Frontier
Thu 5/146:00 am
MIA
- ONT
1 stop28h 35m
Frontier
Deal found 4/29![Frontier logo]()
$242
This Mytrip deal was found by Cheapflights users on 4/29. 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 5/148:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Mon 5/186:00 am
MIA
- ONT
1 stop28h 35m
Frontier
Deal found 4/29![Frontier logo]()
$243
This Expedia deal was found by Cheapflights users on 4/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:59 pm
ONT
- MIA
1 stop27h 45m
Frontier
Sat 6/137:00 am
MIA
- ONT
1 stop12h 48m
Frontier
Deal found 4/29![Frontier logo]()
$244
Best flights from Ontario to MiamiDiscover carefully curated flight deals from Ontario to Miami that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 3, 2026.
Discover carefully curated flight deals from Ontario to Miami that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 3, 2026.
This Delta deal was found by Cheapflights users on 5/2. 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.
Sat 10/245:05 pm
ONT
- MIA
1 stop10h 03m
Delta
Tue 11/36:50 am
MIA
- ONT
1 stop8h 40m
Delta
Deal found 5/2![Delta logo]()
$342
This Southwest deal was found by Cheapflights users on 4/29. 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.
Sun 7/269:40 pm
ONT
- MIA
1 stop10h 20m
Southwest
Fri 7/315:10 am
MIA
- ONT
1 stop6h 45m
Southwest
Deal found 4/29![Southwest logo]()
$418
This United Airlines deal was found by Cheapflights users on 5/2. 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.
Mon 5/186:59 pm
ONT
- MIA
1 stop10h 30m
United Airlines
Fri 5/224:06 pm
MIA
- ONT
1 stop9h 45m
United Airlines
Deal found 5/2![United Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 5/1. 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.
Wed 8/269:55 am
ONT
- MIA
2 stops11h 59m
Delta
Mon 8/312:30 pm
MIA
- ONT
2 stops12h 14m
Delta
Deal found 5/1![Delta logo]()
$352
This Delta deal was found by Cheapflights users on 4/28. 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 5/284:57 pm
ONT
- MIA
1 stop9h 48m
Delta
Thu 6/47:00 am
MIA
- ONT
1 stop8h 19m
Delta
Deal found 4/28![Delta logo]()
$367
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 5/206:00 am
ONT
- MIA
2 stops10h 58m
Delta
Thu 5/2812:40 pm
MIA
- ONT
2 stops13h 54m
Delta
Deal found 4/28![Delta logo]()
$368
This Southwest deal was found by Cheapflights users on 4/28. 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.
Sat 5/165:30 am
ONT
- MIA
2 stops11h 50m
Southwest
Sat 5/239:30 am
MIA
- ONT
2 stops11h 20m
Southwest
Deal found 4/28![Southwest logo]()
$479
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 5/137:05 am
ONT
- MIA
1 stop8h 29m
Delta
Fri 5/154:05 pm
MIA
- ONT
1 stop8h 43m
Delta
Deal found 4/29![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Mon 5/255:45 am
ONT
- MIA
1 stop7h 02m
United Airlines
Fri 5/294:06 pm
MIA
- ONT
1 stop9h 45m
United Airlines
Deal found 4/29![United Airlines logo]()
$518
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 5/305:55 pm
ONT
- MIA
1 stop8h 50m
Delta
Sat 6/67:00 am
MIA
- ONT
1 stop8h 19m
Delta
Deal found 4/30![Delta logo]()
$410
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 8/225:05 pm
ONT
- MIA
2 stops13h 18m
Delta
Sun 8/307:15 am
MIA
- ONT
2 stops11h 59m
Delta
Deal found 4/28![Delta logo]()
$478
This Delta deal was found by Cheapflights users on 5/2. 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 5/224:57 pm
ONT
- MIA
1 stop9h 48m
Delta
Sat 5/307:00 am
MIA
- ONT
1 stop8h 19m
Delta
Deal found 5/2![Delta logo]()
$479
Last-minute flights from Ontario to MiamiDiscover last-minute flight deals from Ontario to Miami. Data last updated May 3, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Miami. Data last updated May 3, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Mon 5/116:00 am
ONT
- MIA
1 stop20h 38m
Frontier
Thu 5/146:00 am
MIA
- ONT
1 stop28h 35m
Frontier
Deal found 4/29![Frontier logo]()
$242
This CheapOair deal was found by Cheapflights users on 4/29. 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 5/126:00 am
ONT
- MIA
1 stop20h 38m
Frontier
Fri 5/156:00 am
MIA
- ONT
1 stop29h 20m
Frontier
Deal found 4/29![Frontier logo]()
$236
This Mytrip deal was found by Cheapflights users on 4/29. 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 5/148:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Mon 5/186:00 am
MIA
- ONT
1 stop28h 35m
Frontier
Deal found 4/29![Frontier logo]()
$243
This Booking.com deal was found by Cheapflights users on 4/29. 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.
Thu 5/148:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Sun 5/176:00 am
MIA
- ONT
1 stop28h 35m
Frontier
Deal found 4/29![Frontier logo]()
$244
This Booking.com deal was found by Cheapflights users on 4/30. 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.
Sat 5/169:15 am
ONT
- MIA
1 stop9h 30m
Frontier
Mon 5/258:03 pm
MIA
- ONT
1 stop15h 01m
Frontier
Deal found 4/30![Frontier logo]()
$232
This Frontier deal was found by Cheapflights users on 4/30. 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.
Mon 5/186:00 am
ONT
- MIA
1 stop20h 38m
Frontier
Wed 5/276:30 am
MIA
- ONT
1 stop20h 19m
Frontier
Deal found 4/30![Frontier logo]()
$237
This CheapOair deal was found by Cheapflights users on 5/3. 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 5/2010:50 am
ONT
- MIA
1 stop15h 48m
Frontier
Sun 5/248:03 pm
MIA
- ONT
1 stop15h 01m
Frontier
Deal found 5/3![Frontier logo]()
$240
This CheapOair deal was found by Cheapflights users on 5/1. 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.
Fri 5/228:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Wed 6/36:30 am
MIA
- ONT
1 stop20h 19m
Frontier
Deal found 5/1![Frontier logo]()
$241
This CheapOair deal was found by Cheapflights users on 5/2. 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.
Sat 5/235:59 pm
ONT
- MIA
1 stop27h 45m
Frontier
Wed 5/276:30 am
MIA
- ONT
1 stop20h 19m
Frontier
Deal found 5/2![Frontier logo]()
$230
This CheapOair deal was found by Cheapflights users on 5/1. 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.
Sat 5/235:59 pm
ONT
- MIA
1 stop27h 45m
Frontier
Sat 5/308:03 pm
MIA
- ONT
1 stop15h 01m
Frontier
Deal found 5/1![Frontier logo]()
$235
This CheapOair deal was found by Cheapflights users on 4/30. 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.
Sun 5/318:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Fri 6/59:15 am
MIA
- ONT
1 stop25h 33m
Frontier
Deal found 4/30![Frontier logo]()
$231
One-way flights from Ontario to MiamiSearch for one-way flight options from Ontario to Miami. Find affordable one-way fares based on user searches. Data last updated May 3, 2026.
Search for one-way flight options from Ontario to Miami. Find affordable one-way fares based on user searches. Data last updated May 3, 2026.
This Super.com deal was found by Cheapflights users on 5/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:00 am
ONT
- MIA
1 stop20h 33m
Frontier
Deal found 5/2![Frontier logo]()
$85
This Booking.com deal was found by Cheapflights users on 4/30. 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.
Sat 5/169:15 am
ONT
- MIA
1 stop9h 30m
Frontier
Deal found 4/30![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 4/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Deal found 4/28![Frontier logo]()
$105
This Super.com deal was found by Cheapflights users on 5/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:06 pm
ONT
- MIA
1 stop17h 21m
Frontier
Deal found 5/1![Frontier logo]()
$110
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:39 pm
ONT
- MIA
1 stop14h 21m
Frontier
Deal found 4/30![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 5/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:06 pm
ONT
- MIA
1 stop25h 38m
Frontier
Deal found 5/1![Frontier logo]()
$115
This CheapOair deal was found by Cheapflights users on 4/30. 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.
Sat 5/303:30 pm
ONT
- MIA
1 stop12h 30m
Frontier
Deal found 4/30![Frontier logo]()
$116
This Mytrip deal was found by Cheapflights users on 5/2. 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.
Mon 6/18:06 pm
ONT
- MIA
1 stop17h 21m
Frontier
Deal found 5/2![Frontier logo]()
$118
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Mon 6/88:06 pm
ONT
- MIA
1 stop25h 06m
Frontier
Deal found 4/29![Frontier logo]()
$122
Find flight deals from Ontario to Miami
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Miami (MIA). 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 May 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $230 (CheapOair) |
One-way from | $85 (Super.com) |
Popular in | December |
Cheapest in | September |
Average price | $382 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Miami 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 May 3, 2026.
Use the filters below to find and compare flights from Ontario to Miami that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Sat 10/24
5:05 pm-6:08 am
1 stop10h 03m
Miami
Tue 11/3
6:50 am-12:30 pm
1 stop8h 40m
$342
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Wed 8/26
9:55 am-12:54 am
2 stops11h 59m
Miami
Mon 8/31
2:30 pm-11:44 pm
2 stops12h 14m
$352
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Thu 5/28
4:57 pm-5:45 am
1 stop9h 48m
Miami
Thu 6/4
7:00 am-12:19 pm
1 stop8h 19m
$367
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Wed 5/20
6:00 am-7:58 pm
2 stops10h 58m
Miami
Thu 5/28
12:40 pm-11:34 pm
2 stops13h 54m
$368
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Wed 5/13
7:05 am-6:34 pm
1 stop8h 29m
Miami
Fri 5/15
4:05 pm-9:48 pm
1 stop8h 43m
$378
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Sat 5/30
5:55 pm-5:45 am
1 stop8h 50m
Miami
Sat 6/6
7:00 am-12:19 pm
1 stop8h 19m
$410
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Sun 7/26
9:40 pm-11:00 am
1 stop10h 20m
Miami
Fri 7/31
5:10 am-8:55 am
1 stop6h 45m
$418
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Mon 5/18
6:59 pm-8:29 am
1 stop10h 30m
Miami
Fri 5/22
4:06 pm-10:51 pm
1 stop9h 45m
$467
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Sat 8/22
5:05 pm-9:23 am
2 stops13h 18m
Miami
Sun 8/30
7:15 am-4:14 pm
2 stops11h 59m
$478
OntarioMiami
ONT - MIA
ONTMIA
Ontario
Sat 5/16
5:30 am-8:20 pm
2 stops11h 50m
Miami
Sat 5/23
9:30 am-5:50 pm
2 stops11h 20m
$479
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Ontario to Miami
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 Ontario to Miami in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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 Ontario-Miami flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Miami flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Miami flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Miami 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 Ontario-Miami 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 Ontario to Miami
Have a flexible travel schedule? Discover the best time to fly to Miami from Ontario with our price prediction graph.
ONT-MIA
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 Ontario to Miami
Prices
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How far ahead should I book a flight from Ontario to Miami?
Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Miami. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Ontario to Miami?
Currently, September is the cheapest month in which you can book a flight from Ontario to Miami (average of $336). Flying from Ontario to Miami in December is currently the most expensive (average of $536). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Miami?
What’s the top layover airport for flights from Ontario to Miami?
Share of 1-stop round-trip flights from Ontario to Miami chosen by Cheapflights users in the past 12 months, using the same layover each way.
Atlanta (ATL) – chosen by Cheapflights users on 33% of 1-stop itineraries from Ontario to Miami on Cheapflights.
What’s the cheapest layover airport for flights from Ontario to Miami?
Average round-trip fare for 1-stop flights from Ontario to Miami, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $352.
What’s the fastest layover option from Ontario to Miami?
Shortest average travel time for 1-stop one-way flights from Ontario to Miami, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Dallas (DFW) have the shortest average one-way travel time for 1-stop routes: 8h 18m.
Which airport typically offers the quickest layover for flights from Ontario to Miami?
Average layover duration for 1-stop one-way flights from Ontario to Miami, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 34m.
Reviews of airlines servicing Miami
Get insights into the airlines that provide service to Miami. 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 Miami. Reviews last updated May 3, 2026.
Read through reviews of airlines operating flights from Ontario to Miami, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Miami. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Miami?
Book flights to Miami if you plan to visit one of these locationsSunny Isles Beach
Hollywood
Dania Beach
Plantation
Miami Springs
Miramar
Doral
Sunrise
Hialeah
Palm Beach
Miami Lakes
Deerfield Beach
Lake Worth
Oakland Park
Tamarac
Bonita Springs
Marathon
North Palm Beach
Fisher Island
Boynton Beach
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Ontario to Miami
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Complete your trip
Complete your trip to Miami by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Miami by cabin class
Find flights from Ontario to Miami, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Miami
Explore flights to Miami departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 3, 2026.
Ontario and Miami flights
Browse other Ontario and Miami flight options. Last updated on May 3, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on May 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Ontario to Miami
Discover the top 6 airlines that operate flights from Ontario to Miami. 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 May 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$124 | Average$266 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$213 | Average$440 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$256 | Average$364 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$301 | Average$388 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$316 | Average$402 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$351 | Average$482 | FlexibilityNo cancel fee | On-time63% |