$205+ Cheap flights from Cancún (CUN) to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — ONT
Nov 23 — Nov 301
Round-trip
1 adult, Economy
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Find cheap flights from Cancún 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
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 Cancún to Ontario
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Cheapest flights from Cancún to OntarioExplore the most affordable flight options available from Cancún to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
Explore the most affordable flight options available from Cancún to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/33:15 pm -
1 stop8h 56m
Mon 12/76:40 pm -
2 stops17h 44m
Deal found 10/21![United Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Fri 11/2012:28 pm -
1 stop12h 12m
Sun 11/295:00 am -
1 stop7h 45m
Deal found 10/20![United Airlines logo]()
$466
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/121:18 pm -
1 stop13h 28m
Sat 2/62:21 pm -
1 stop23h 26m
Deal found 10/22![American Airlines logo]()
$478
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/1212:28 pm -
1 stop12h 12m
Sat 2/611:20 am -
2 stops21h 00m
Deal found 10/22![United Airlines logo]()
$492
This Frontier deal was found by Cheapflights users on 10/19. 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 11/192:51 pm -
2 stops19h 29m
Wed 11/257:30 am -
1 stop6h 38m
Deal found 10/19![Frontier logo]()
$507
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/198:39 am -
1 stop16h 01m
Thu 11/266:00 am -
1 stop6h 24m
Deal found 10/20![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 12/201:16 pm -
1 stop12h 15m
Sun 1/311:52 pm -
1 stop10h 51m
Deal found 10/22![United Airlines logo]()
$531
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sat 12/198:39 am -
1 stop16h 32m
Wed 12/305:55 am -
1 stop26h 25m
Deal found 10/21![United Airlines logo]()
$535
This CheapOair deal was found by Cheapflights users on 10/20. 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 10/239:55 am -
1 stop11h 13m
Sun 3/281:41 am -
1 stop10h 24m
Deal found 10/20![Multiple Airlines logo]()
$537
Best flights from Cancún to OntarioDiscover carefully curated flight deals from Cancún to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
Discover carefully curated flight deals from Cancún to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 1/151:45 pm -
1 stop30h 50m
Sun 7/116:00 am -
1 stop6h 18m
Deal found 10/21![United Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Fri 1/154:34 pm -
1 stop23h 06m
Sun 7/46:00 am -
1 stop6h 37m
Deal found 10/23![United Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/1212:28 pm -
1 stop12h 12m
Sat 2/611:20 am -
2 stops21h 00m
Deal found 10/22![United Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sat 2/68:39 am -
1 stop16h 36m
Mon 2/155:00 am -
1 stop30h 03m
Deal found 10/20![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Fri 1/154:34 pm -
1 stop23h 06m
Thu 7/86:00 am -
1 stop28h 02m
Deal found 10/23![United Airlines logo]()
$532
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sun 12/202:55 pm -
1 stop10h 36m
Sun 1/35:00 am -
1 stop7h 45m
Deal found 10/20![United Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Tue 1/198:39 am -
1 stop16h 36m
Sun 7/46:00 am -
1 stop6h 37m
Deal found 10/24![United Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Tue 1/198:39 am -
1 stop16h 36m
Tue 6/296:00 am -
1 stop6h 18m
Deal found 10/24![United Airlines logo]()
$540
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Sat 1/164:47 pm -
1 stop8h 28m
Sat 1/231:42 pm -
1 stop21h 21m
Deal found 10/23![United Airlines logo]()
$556
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 1/178:39 am -
1 stop16h 36m
Sat 7/106:00 am -
1 stop26h 06m
Deal found 10/21![United Airlines logo]()
$560
Last-minute flights from Cancún to OntarioDiscover last-minute flight deals from Cancún to Ontario. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from Cancún to Ontario. Data last updated October 24, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 10/20. 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 10/239:55 am -
1 stop11h 13m
Sun 3/281:41 am -
1 stop10h 24m
Deal found 10/20![Multiple Airlines logo]()
$537
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/121:18 pm -
1 stop13h 28m
Sat 2/62:21 pm -
1 stop23h 26m
Deal found 10/22![American Airlines logo]()
$478
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/1212:28 pm -
2 stops13h 20m
Sat 2/611:20 am -
2 stops23h 14m
Deal found 10/22![United Airlines logo]()
$492
This Frontier deal was found by Cheapflights users on 10/19. 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 11/192:51 pm -
2 stops19h 29m
Wed 11/257:30 am -
1 stop6h 38m
Deal found 10/19![Frontier logo]()
$507
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/198:39 am -
1 stop16h 01m
Thu 11/266:00 am -
1 stop6h 24m
Deal found 10/20![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/194:47 pm -
1 stop7h 53m
Wed 11/256:00 am -
1 stop26h 25m
Deal found 10/19![United Airlines logo]()
$570
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Fri 11/2012:28 pm -
1 stop12h 12m
Sun 11/295:00 am -
1 stop7h 45m
Deal found 10/20![United Airlines logo]()
$466
This American Airlines deal was found by Cheapflights users on 10/20. 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.
Fri 11/204:48 pm -
1 stop8h 04m
Sun 11/296:20 am -
1 stop6h 28m
Deal found 10/20![American Airlines logo]()
$567
This FlightHub deal was found by Cheapflights users on 10/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:18 pm -
1 stop15h 02m
Sat 11/287:30 am -
1 stop6h 38m
Deal found 10/22![Frontier logo]()
$549
One-way flights from Cancún to OntarioSearch for one-way flight options from Cancún to Ontario. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
Search for one-way flight options from Cancún to Ontario. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This Super.com deal was found by Cheapflights users on 10/21. 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 4/182:58 pm -
1 stop11h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Volaris logo]()
$205
This Super.com deal was found by Cheapflights users on 10/21. 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.
Wed 4/74:20 pm -
1 stop8h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Volaris logo]()
$209
This Volaris deal was found by Cheapflights users on 10/20. 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 Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/161:00 pm -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Volaris logo]()
$210
This Super.com deal was found by Cheapflights users on 10/22. 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.
Wed 1/2710:20 am -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Volaris logo]()
$211
This Super.com deal was found by Cheapflights users on 10/22. 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 3/610:20 am -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Volaris logo]()
$214
This Kissandfly.com deal was found by Cheapflights users on 10/21. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/510:20 am -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Volaris logo]()
$220
This FlightHub deal was found by Cheapflights users on 10/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1710:20 am -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Volaris logo]()
$221
This Cheapflightsfares deal was found by Cheapflights users on 10/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2710:20 am -
1 stop9h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Volaris logo]()
$236
This Trip.com deal was found by Cheapflights users on 10/24. 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.
Fri 11/136:20 am -
2 stops13h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 11/1210:25 am -
2 stops49h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$241
This Justfly.com deal was found by Cheapflights users on 10/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/312:44 pm -
1 stop23h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$242
Find flight deals from Cancún to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Cancún (CUN) 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 October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $453 (United Airlines) |
One-way from | $205 (Super.com) |
Popular in | October |
Cheapest in | February |
Average price | $556 |
Cheapflights Fare Finder
Customize your flight search to find flights from Cancún 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 7,457,451 searches. Data last updated October 24, 2026.
Use the filters below to find and compare flights from Cancún to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Wed 11/18
8:39 am-8:15 pm
2 stops14h 36m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$264
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Wed 11/11
8:39 am-8:15 pm
2 stops14h 36m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$264
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Tue 11/24
8:39 am-10:48 pm
2 stops17h 09m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$264
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Wed 12/16
8:39 am-5:36 pm
2 stops11h 57m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$265
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Sat 12/5
6:16 pm-10:13 am
2 stops18h 57m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$318
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Wed 11/25
8:39 am-8:51 pm
2 stops15h 12m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$321
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Sat 11/21
4:47 pm-12:29 pm
2 stops22h 42m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$321
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Sat 2/27
8:39 am-11:01 pm
2 stops17h 22m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$321
Quickest round-trip
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Thu 11/19
1:45 pm-8:15 pm
1 stop9h 30m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$322
CancúnOntario
CUN Cancun - ONT Ontario
CUNONT
Cancun
Mon 12/14
6:16 pm-9:38 am
2 stops18h 22m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$324
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Cancún 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 Cancún to Ontario in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Cancún-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cancún-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cancún-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Cancún-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 Cancún-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 Cancún to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Cancún with our price prediction graph.
CUN-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.
Related info for your journey
Find useful and relevant information for your journey from Cancún to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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