$116+ Cheap flights from Ontario (ONT) to Cancún (CUN)
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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CUN
May 13 — May 201
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Cancún 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 Cancún
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to CancúnExplore the most affordable flight options available from Ontario to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 13, 2026.
Explore the most affordable flight options available from Ontario to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 13, 2026.
This Frontier deal was found by Cheapflights users on 4/8. 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 5/95:59 pm
ONT
- CUN
2 stops18h 08m
Frontier
Thu 5/2111:05 am
CUN
- ONT
1 stop10h 06m
Frontier
Deal found 4/8![Frontier logo]()
$275
This CheapOair deal was found by Cheapflights users on 4/8. 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.
Mon 5/1112:55 am
ONT
- CUN
1 stop12h 33m
Multiple Airlines
Thu 5/2111:05 am
CUN
- ONT
1 stop10h 06m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$281
This Jetabroad deal was found by Cheapflights users on 4/8. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/209:36 pm
ONT
- CUN
1 stop12h 18m
Volaris
Wed 6/2412:43 pm
CUN
- ONT
1 stop9h 03m
Volaris
Deal found 4/8![Volaris logo]()
$291
This CheapOair deal was found by Cheapflights users on 4/8. 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.
Fri 5/1512:55 am
ONT
- CUN
1 stop12h 33m
Multiple Airlines
Sun 5/2411:05 am
CUN
- ONT
1 stop10h 06m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:06 pm
ONT
- CUN
1 stop10h 15m
Multiple Airlines
Tue 5/1210:25 am
CUN
- ONT
2 stops23h 10m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$294
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/812:55 am
ONT
- CUN
1 stop12h 33m
Volaris
Fri 6/1210:40 am
CUN
- ONT
1 stop11h 06m
Volaris
Deal found 4/9![Volaris logo]()
$296
This Trip.com deal was found by Cheapflights users on 4/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2212:55 am
ONT
- CUN
1 stop12h 33m
Multiple Airlines
Tue 5/261:14 pm
CUN
- ONT
1 stop20h 21m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$302
This Mytrip deal was found by Cheapflights users on 4/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:36 pm
ONT
- CUN
1 stop12h 18m
Multiple Airlines
Wed 4/153:54 pm
CUN
- ONT
1 stop17h 37m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$303
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:55 am
ONT
- CUN
1 stop10h 46m
Volaris
Sat 5/94:32 pm
CUN
- ONT
1 stop8h 33m
Volaris
Deal found 4/9![Volaris logo]()
$304
This Gotogate deal was found by Cheapflights users on 4/8. 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.
Sat 5/1612:55 am
ONT
- CUN
1 stop10h 46m
Multiple Airlines
Sun 5/243:39 pm
CUN
- ONT
1 stop20h 26m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$305
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:55 am
ONT
- CUN
1 stop12h 33m
Volaris
Sat 4/254:32 pm
CUN
- ONT
1 stop8h 33m
Volaris
Deal found 4/9![Volaris logo]()
$306
Best flights from Ontario to CancúnDiscover carefully curated flight deals from Ontario to Cancún that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 13, 2026.
Discover carefully curated flight deals from Ontario to Cancún that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 13, 2026.
This United Airlines deal was found by Cheapflights users on 4/12. 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 8/227:13 pm
ONT
- CUN
2 stops12h 53m
United Airlines
Wed 8/261:57 pm
CUN
- ONT
2 stops11h 01m
United Airlines
Deal found 4/12![United Airlines logo]()
$510
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Tue 5/56:00 am
ONT
- CUN
1 stop32h 20m
Alaska Airlines
Thu 5/74:08 pm
CUN
- ONT
1 stop19h 37m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$514
This JetBlue deal was found by Cheapflights users on 4/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2410:41 pm
ONT
- CUN
1 stop14h 04m
JetBlue
Fri 5/2910:25 am
CUN
- ONT
1 stop12h 22m
JetBlue
Deal found 4/9![JetBlue logo]()
$594
This Delta deal was found by Cheapflights users on 4/12. 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 5/126:00 am
ONT
- CUN
1 stop7h 05m
Delta
Tue 5/194:15 pm
CUN
- ONT
1 stop18h 38m
Delta
Deal found 4/12![Delta logo]()
$599
This JetBlue deal was found by Cheapflights users on 4/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/610:41 pm
ONT
- CUN
1 stop14h 04m
JetBlue
Sat 6/1311:20 am
CUN
- ONT
1 stop12h 41m
JetBlue
Deal found 4/10![JetBlue logo]()
$594
This Delta deal was found by Cheapflights users on 4/12. 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
- CUN
1 stop11h 11m
Delta
Tue 5/198:00 am
CUN
- ONT
2 stops17h 34m
Delta
Deal found 4/12![Delta logo]()
$603
This United Airlines deal was found by Cheapflights users on 4/12. 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 5/36:00 am
ONT
- CUN
1 stop6h 18m
United Airlines
Wed 5/63:24 pm
CUN
- ONT
1 stop8h 34m
United Airlines
Deal found 4/12![United Airlines logo]()
$619
This Delta deal was found by Cheapflights users on 4/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
ONT
- CUN
2 stops11h 40m
Delta
Sun 5/1012:22 pm
CUN
- ONT
2 stops13h 12m
Delta
Deal found 4/10![Delta logo]()
$614
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Sat 5/26:00 am
ONT
- CUN
1 stop6h 18m
United Airlines
Thu 5/72:10 pm
CUN
- ONT
1 stop8h 26m
United Airlines
Deal found 4/7![United Airlines logo]()
$626
Last-minute flights from Ontario to CancúnDiscover last-minute flight deals from Ontario to Cancún. Data last updated April 13, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Cancún. Data last updated April 13, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 4/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:36 pm
ONT
- CUN
1 stop12h 18m
Multiple Airlines
Wed 4/153:54 pm
CUN
- ONT
1 stop17h 37m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$303
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:55 am
ONT
- CUN
1 stop12h 33m
Volaris
Sat 4/254:32 pm
CUN
- ONT
1 stop8h 33m
Volaris
Deal found 4/9![Volaris logo]()
$306
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:55 am
ONT
- CUN
1 stop10h 46m
Volaris
Sat 5/94:32 pm
CUN
- ONT
1 stop8h 33m
Volaris
Deal found 4/9![Volaris logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:06 pm
ONT
- CUN
1 stop10h 15m
Multiple Airlines
Tue 5/1210:25 am
CUN
- ONT
2 stops23h 10m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$294
This Frontier deal was found by Cheapflights users on 4/8. 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 5/95:59 pm
ONT
- CUN
2 stops18h 08m
Frontier
Thu 5/2111:05 am
CUN
- ONT
1 stop10h 06m
Frontier
Deal found 4/8![Frontier logo]()
$275
This CheapOair deal was found by Cheapflights users on 4/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1012:55 am
ONT
- CUN
1 stop12h 33m
Multiple Airlines
Fri 5/223:39 pm
CUN
- ONT
1 stop10h 10m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$307
This CheapOair deal was found by Cheapflights users on 4/8. 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.
Mon 5/1112:55 am
ONT
- CUN
1 stop12h 33m
Multiple Airlines
Thu 5/2111:05 am
CUN
- ONT
1 stop10h 06m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$281
This CheapOair deal was found by Cheapflights users on 4/8. 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.
Fri 5/1512:55 am
ONT
- CUN
1 stop12h 33m
Multiple Airlines
Sun 5/2411:05 am
CUN
- ONT
1 stop10h 06m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$292
This CheapOair deal was found by Cheapflights users on 4/7. 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.
Fri 5/1512:55 am
ONT
- CUN
1 stop10h 46m
Multiple Airlines
Sat 5/231:14 pm
CUN
- ONT
1 stop19h 54m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$312
This Gotogate deal was found by Cheapflights users on 4/8. 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.
Sat 5/1612:55 am
ONT
- CUN
1 stop10h 46m
Multiple Airlines
Sun 5/243:39 pm
CUN
- ONT
1 stop20h 26m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$305
This Priceline deal was found by Cheapflights users on 4/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/194:39 pm
ONT
- CUN
2 stops38h 30m
Frontier
Sat 5/233:39 pm
CUN
- ONT
1 stop20h 26m
Frontier
Deal found 4/11![Frontier logo]()
$309
This Trip.com deal was found by Cheapflights users on 4/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2212:55 am
ONT
- CUN
1 stop12h 33m
Multiple Airlines
Tue 5/261:14 pm
CUN
- ONT
1 stop20h 21m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$302
One-way flights from Ontario to CancúnSearch for one-way flight options from Ontario to Cancún. Find affordable one-way fares based on user searches. Data last updated April 13, 2026.
Search for one-way flight options from Ontario to Cancún. Find affordable one-way fares based on user searches. Data last updated April 13, 2026.
This CheapOair deal was found by Cheapflights users on 4/8. 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.
Mon 4/209:36 pm
ONT
- CUN
1 stop12h 18m
Volaris
Deal found 4/8![Volaris logo]()
$116
This Mytrip deal was found by Cheapflights users on 4/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:36 pm
ONT
- CUN
1 stop12h 18m
Volaris
Deal found 4/8![Volaris logo]()
$121
This Mytrip deal was found by Cheapflights users on 4/9. 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.
Mon 4/2712:55 am
ONT
- CUN
1 stop8h 59m
Volaris
Deal found 4/9![Volaris logo]()
$123
This CheapOair deal was found by Cheapflights users on 4/9. 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.
Mon 6/299:36 pm
ONT
- CUN
1 stop12h 18m
Volaris
Deal found 4/9![Volaris logo]()
$125
This FlightHub deal was found by Cheapflights users on 4/12. 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.
Mon 5/412:55 am
ONT
- CUN
1 stop10h 46m
Volaris
Deal found 4/12![Volaris logo]()
$127
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:36 pm
ONT
- CUN
1 stop12h 18m
Volaris
Deal found 4/9![Volaris logo]()
$128
This Booking.com deal was found by Cheapflights users on 4/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:00 am
ONT
- CUN
1 stop28h 04m
Frontier
Deal found 4/11![Frontier logo]()
$132
This FlightHub deal was found by Cheapflights users on 4/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:36 pm
ONT
- CUN
1 stop12h 18m
Volaris
Deal found 4/9![Volaris logo]()
$133
This CheapOair deal was found by Cheapflights users on 4/8. 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 4/2112:55 am
ONT
- CUN
1 stop8h 59m
Volaris
Deal found 4/8![Volaris logo]()
$135
Find flight deals from Ontario to Cancún
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Cancún (CUN). 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 April 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $275 (Frontier) |
One-way from | $116 (CheapOair) |
Popular in | April |
Cheapest in | March |
Average price | $589 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Cancún 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 April 13, 2026.
Use the filters below to find and compare flights from Ontario to Cancún that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Sat 8/22
7:13 pm-10:06 am
2 stops12h 53m
Cancun
Wed 8/26
1:57 pm-10:58 pm
2 stops11h 01m
$510
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Tue 5/5
6:00 am-4:20 pm
1 stop32h 20m
Cancun
Thu 5/7
4:08 pm-9:45 am
1 stop19h 37m
$514
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Sun 5/24
10:41 pm-2:45 pm
1 stop14h 04m
Cancun
Fri 5/29
10:25 am-8:47 pm
1 stop12h 22m
$594
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Sat 6/6
10:41 pm-2:45 pm
1 stop14h 04m
Cancun
Sat 6/13
11:20 am-10:01 pm
1 stop12h 41m
$594
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Tue 5/12
6:00 am-3:05 pm
1 stop7h 05m
Cancun
Tue 5/19
4:15 pm-8:53 am
1 stop18h 38m
$599
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Wed 5/13
7:05 am-8:16 pm
1 stop11h 11m
Cancun
Tue 5/19
8:00 am-11:34 pm
2 stops17h 34m
$603
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Sun 5/3
6:00 am-7:40 pm
2 stops11h 40m
Cancun
Sun 5/10
12:22 pm-11:34 pm
2 stops13h 12m
$614
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Sun 5/3
6:00 am-2:18 pm
1 stop6h 18m
Cancun
Wed 5/6
3:24 pm-9:58 pm
1 stop8h 34m
$619
Quickest round-trip
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Sat 5/2
6:00 am-2:18 pm
1 stop6h 18m
Cancun
Thu 5/7
2:10 pm-8:36 pm
1 stop8h 26m
$626
Cheapest one-way
OntarioCancún
ONT - CUN
ONTCUN
Ontario
Thu 6/25
12:55 am-11:54 am
1 stop8h 59m
$141
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Ontario to Cancún
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 Cancún in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Cancún flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Cancún flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Cancún flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Cancún 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-Cancún 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 Cancún
Have a flexible travel schedule? Discover the best time to fly to Cancún from Ontario with our price prediction graph.
ONT-CUN
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 Cancún
Prices
More
How far ahead should I book a flight from Ontario to Cancún?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Cancún. Price data was last updated on April 10, 2026.
The price you pay for your flight from Ontario to Cancún may vary depending on when you book. For the best chance of a lower fare, look to book 84 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Ontario to Cancún?
Currently, March is the cheapest month in which you can book a flight from Ontario to Cancún (average of $149). Flying from Ontario to Cancún in November is currently the most expensive (average of $271). 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 Cancún?
What’s the top layover airport for flights from Ontario to Cancún?
Share of 1-stop round-trip flights from Ontario to Cancún chosen by Cheapflights users in the past 12 months, using the same layover each way.
Houston (IAH) – chosen by Cheapflights users on 33% of 1-stop itineraries from Ontario to Cancún on Cheapflights.
What’s the cheapest layover airport for flights from Ontario to Cancún?
Average round-trip fare for 1-stop flights from Ontario to Cancún, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $410.
What’s the fastest layover option from Ontario to Cancún?
Shortest average travel time for 1-stop one-way flights from Ontario to Cancún, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 6h 23m.
Which airport typically offers the quickest layover for flights from Ontario to Cancún?
Average layover duration for 1-stop one-way flights from Ontario to Cancún, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 1h 19m.
Reviews of airlines servicing Cancún
Get insights into the airlines that provide service to Cancún. 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 Cancún. Reviews last updated April 13, 2026.
Read through reviews of airlines operating flights from Ontario to Cancún, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Cancún. 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 Cancún?
Book flights to Cancún if you plan to visit one of these locationsPuerto Aventuras
Punta Sam
Holbox
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.
Alternative routes
Cancún flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Cancún
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Cancún
Explore flights to Cancún departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 13, 2026.
Complete your trip
Complete your trip to Cancún by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Cancún by cabin class
Find flights from Ontario to Cancún, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Cancún flights
Browse other Ontario and Cancún flight options. Last updated on April 13, 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 April 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Ontario to Cancún
Discover the top 7 airlines that operate flights from Ontario to Cancún. 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 April 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$191 | Average$481 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$204 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$291 | Average$377 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$366 | Average$416 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$376 | Average$503 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$381 | Average$605 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$467 | Average$587 | FlexibilityNo cancel fee | On-time71% |