$137+ Cheap flights from Cleveland to Ontario (CLE - 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
CLE — ONT
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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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 Cleveland to Ontario
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Cheapest flights from Cleveland to OntarioExplore the most affordable flight options available from Cleveland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
Explore the most affordable flight options available from Cleveland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Fri 9/111:24 pm -
1 stop13h 23m
Mon 9/148:24 pm -
1 stop6h 55m
Deal found 8/9![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 8/6. 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 9/1912:23 pm -
1 stop7h 23m
Thu 9/247:46 pm -
1 stop12h 32m
Deal found 8/6![Frontier logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Fri 9/45:15 pm -
2 stops33h 35m
Fri 9/116:15 am -
1 stop11h 24m
Deal found 8/5![Frontier logo]()
$279
This Frontier deal was found by Cheapflights users on 8/5. 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.
Fri 8/287:00 am -
1 stop12h 22m
Wed 9/23:40 pm -
1 stop12h 50m
Deal found 8/5![Frontier logo]()
$283
This CheapOair deal was found by Cheapflights users on 8/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 pm -
1 stop24h 59m
Sat 10/310:04 am -
1 stop17h 15m
Deal found 8/7![Frontier logo]()
$284
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 pm -
1 stop7h 05m
Fri 9/1111:55 pm -
1 stop7h 00m
Deal found 8/10![Southwest logo]()
$290
This Frontier deal was found by Cheapflights users on 8/6. 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.
Fri 9/1112:23 pm -
1 stop9h 16m
Fri 9/187:46 pm -
1 stop12h 32m
Deal found 8/6![Frontier logo]()
$292
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 9/1210:35 am -
2 stops8h 55m
Mon 9/1411:55 pm -
1 stop8h 05m
Deal found 8/9![Southwest logo]()
$296
This Frontier deal was found by Cheapflights users on 8/6. 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.
Sun 9/201:24 pm -
1 stop13h 23m
Wed 9/232:30 pm -
1 stop12h 49m
Deal found 8/6![Frontier logo]()
$301
Best flights from Cleveland to OntarioDiscover carefully curated flight deals from Cleveland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Cleveland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 pm -
1 stop7h 05m
Thu 9/108:00 am -
2 stops7h 40m
Deal found 8/10![Southwest logo]()
$383
This Delta deal was found by Cheapflights users on 8/9. 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.
Wed 12/26:00 am -
1 stop8h 10m
Sat 12/2612:00 pm -
1 stop9h 35m
Deal found 8/9![Delta logo]()
$413
This American Airlines deal was found by Cheapflights users on 8/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:35 pm -
1 stop7h 01m
Thu 10/87:34 pm -
2 stops11h 02m
Deal found 8/7![American Airlines logo]()
$418
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am -
1 stop10h 16m
Fri 9/256:02 am -
1 stop7h 59m
Deal found 8/6![Alaska Airlines logo]()
$432
This Southwest deal was found by Cheapflights users on 8/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:45 am -
2 stops8h 55m
Wed 1/611:00 am -
2 stops8h 40m
Deal found 8/8![Southwest logo]()
$423
This Delta deal was found by Cheapflights users on 8/5. 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 10/166:00 am -
1 stop8h 06m
Wed 10/211:24 pm -
1 stop6h 43m
Deal found 8/5![Delta logo]()
$432
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:55 am -
2 stops8h 45m
Fri 9/115:40 am -
2 stops7h 35m
Deal found 8/10![Southwest logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:23 am -
1 stop9h 52m
Sat 11/1412:00 pm -
1 stop29h 53m
Deal found 8/7![Alaska Airlines logo]()
$533
This Southwest deal was found by Cheapflights users on 8/9. 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.
Fri 9/114:55 pm -
2 stops8h 10m
Mon 9/145:15 am -
2 stops8h 00m
Deal found 8/9![Southwest logo]()
$454
This Delta deal was found by Cheapflights users on 8/5. 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 8/286:00 am -
2 stops15h 30m
Fri 9/412:00 pm -
1 stop9h 29m
Deal found 8/5![Delta logo]()
$507
This Southwest deal was found by Cheapflights users on 8/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:00 am -
2 stops9h 25m
Sat 12/267:50 am -
1 stop8h 40m
Deal found 8/8![Southwest logo]()
$492
Last-minute flights from Cleveland to OntarioDiscover last-minute flight deals from Cleveland to Ontario. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Cleveland to Ontario. Data last updated August 10, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/5. 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.
Fri 8/287:00 am -
1 stop12h 22m
Wed 9/23:40 pm -
1 stop12h 50m
Deal found 8/5![Frontier logo]()
$283
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:45 am -
2 stops39h 16m
Fri 9/116:15 am -
1 stop11h 24m
Deal found 8/7![Frontier logo]()
$293
This Southwest deal was found by Cheapflights users on 8/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 pm -
1 stop7h 05m
Fri 9/1111:55 pm -
1 stop7h 00m
Deal found 8/10![Southwest logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Fri 9/111:24 pm -
1 stop13h 23m
Mon 9/148:24 pm -
1 stop6h 55m
Deal found 8/9![Frontier logo]()
$261
This Frontier deal was found by Cheapflights users on 8/6. 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.
Fri 9/1112:23 pm -
1 stop9h 16m
Fri 9/187:46 pm -
1 stop12h 32m
Deal found 8/6![Frontier logo]()
$292
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 9/1210:35 am -
2 stops8h 55m
Mon 9/1411:55 pm -
1 stop8h 05m
Deal found 8/9![Southwest logo]()
$296
This Frontier deal was found by Cheapflights users on 8/10. 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.
Sat 9/1912:23 pm -
1 stop7h 23m
Wed 9/302:30 pm -
1 stop12h 49m
Deal found 8/10![Frontier logo]()
$274
This Frontier deal was found by Cheapflights users on 8/6. 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.
Sun 9/201:24 pm -
1 stop13h 23m
Wed 9/232:30 pm -
1 stop12h 49m
Deal found 8/6![Frontier logo]()
$301
This Super.com deal was found by Cheapflights users on 8/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:23 pm -
1 stop7h 23m
Mon 9/288:24 pm -
1 stop6h 55m
Deal found 8/10![Frontier logo]()
$297
This CheapOair deal was found by Cheapflights users on 8/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 pm -
1 stop24h 59m
Sat 10/310:04 am -
1 stop17h 15m
Deal found 8/7![Frontier logo]()
$284
One-way flights from Cleveland to OntarioSearch for one-way flight options from Cleveland to Ontario. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Cleveland to Ontario. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Booking.com deal was found by Cheapflights users on 8/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:12 pm -
1 stop9h 38m
Deal found 8/7![Frontier logo]()
$137
This Trip.com deal was found by Cheapflights users on 8/9. 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.
Mon 9/149:45 pm -
1 stop22h 14m
Deal found 8/9![Frontier logo]()
$140
This Super.com deal was found by Cheapflights users on 8/5. 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.
Mon 8/317:00 am -
1 stop17h 27m
Deal found 8/5![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/59:27 pm -
2 stops15h 37m
Deal found 8/6![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 8/6. 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 8/277:00 am -
1 stop12h 22m
Deal found 8/6![Frontier logo]()
$143
This Frontier deal was found by Cheapflights users on 8/5. 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.
Fri 9/1112:23 pm -
1 stop9h 16m
Deal found 8/5![Frontier logo]()
$146
This Super.com deal was found by Cheapflights users on 8/5. 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 8/289:27 pm -
1 stop13h 36m
Deal found 8/5![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Thu 9/243:45 pm -
2 stops29h 54m
Deal found 8/9![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 8/9. 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.
Mon 9/2812:23 pm -
1 stop9h 16m
Deal found 8/9![Frontier logo]()
$164
This Super.com deal was found by Cheapflights users on 8/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:45 pm -
1 stop16h 37m
Deal found 8/9![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Wed 8/265:15 pm -
2 stops17h 17m
Deal found 8/6![Frontier logo]()
$166
Find flight deals from Cleveland to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Cleveland (CLE) 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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (Kiwi.com) |
One-way from | $137 (Booking.com) |
Popular in | August |
Cheapest in | September |
Average price | $627 |
Cheapflights Fare Finder
Customize your flight search to find flights from Cleveland 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 August 10, 2026.
Use the filters below to find and compare flights from Cleveland to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Wed 9/9
6:00 pm-10:05 pm
1 stop7h 05m
Ontario
Thu 9/10
8:00 am-6:40 pm
2 stops7h 40m
$383
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Wed 12/2
6:00 am-11:10 am
1 stop8h 10m
Ontario
Sat 12/26
12:00 pm-12:35 am
1 stop9h 35m
$413
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Thu 9/24
7:35 pm-11:36 pm
1 stop7h 01m
Ontario
Thu 10/8
7:34 pm-9:36 am
2 stops11h 02m
$418
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Wed 12/16
8:45 am-2:40 pm
2 stops8h 55m
Ontario
Wed 1/6
11:00 am-10:40 pm
2 stops8h 40m
$423
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Tue 9/22
7:00 am-2:16 pm
1 stop10h 16m
Ontario
Fri 9/25
6:02 am-5:01 pm
1 stop7h 59m
$432
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Fri 10/16
6:00 am-11:06 am
1 stop8h 06m
Ontario
Wed 10/21
1:24 pm-11:07 pm
1 stop6h 43m
$432
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Wed 9/9
6:55 am-12:40 pm
2 stops8h 45m
Ontario
Fri 9/11
5:40 am-4:15 pm
2 stops7h 35m
$437
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Fri 9/11
4:55 pm-10:05 pm
2 stops8h 10m
Ontario
Mon 9/14
5:15 am-4:15 pm
2 stops8h 00m
$454
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Sat 12/5
6:00 am-12:25 pm
2 stops9h 25m
Ontario
Sat 12/26
7:50 am-7:30 pm
1 stop8h 40m
$492
ClevelandOntario
CLE Cleveland Hopkins Intl - ONT Ontario
CLEONT
Cleveland Hopkins Intl
Fri 8/28
6:00 am-6:30 pm
2 stops15h 30m
Ontario
Fri 9/4
12:00 pm-12:29 am
1 stop9h 29m
$507
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Cleveland 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 Cleveland to Ontario in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Cleveland-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cleveland-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cleveland-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Cleveland-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 Cleveland-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 Cleveland to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Cleveland with our price prediction graph.
CLE-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 Cleveland to Ontario
How far ahead should I book a flight from Cleveland to Ontario?
The best time to book flights from Cleveland to Ontario is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Cleveland to Ontario?
Currently, September is the cheapest month in which you can book a flight from Cleveland to Ontario (average of $296). Flying from Cleveland to Ontario in August is currently the most expensive (average of $627). 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 Cleveland to Ontario?
Airfare is below average for this route at the moment.
Cleveland to Ontario flights typically cost between $559 and $840 in September.The cheapest round-trip price found within the last 5 days was $261 on Frontier (Sep 11-Sep 14).
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 August 10, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Cleveland to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
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Top 5 airlines flying from Cleveland to Ontario
Discover the top 5 airlines that operate flights from Cleveland 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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$167 | Average$282 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$286 | Average$481 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$456 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$315 | Average$497 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$361 | Average$448 | FlexibilityNo cancel fee | On-time69% |