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Cheap flights from Ontario to Cancún from $111

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Cancún departing on 3/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Cancún

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aeromexico Logo
6:00 am - 4:05 pmONT-CUN
7h 05m1 stop
Aeromexico Logo
3:45 pm - 11:58 pmCUN-ONT
11h 13m1 stop
$307Aeromexico
Find Deal
Sun, Jan 18 - Thu, Jan 22
Volaris Logo
11:59 pm - 2:00 pmONT-CUN
11h 01m1 stop
Volaris Logo
10:39 am - 8:11 pmCUN-ONT
12h 32m1 stop
$320Volaris
Find Deal
Wed, Feb 4 - Sun, Feb 8
Volaris Logo
12:57 am - 1:48 pmONT-CUN
10h 51m1 stop
Volaris Logo
10:53 am - 7:23 pmCUN-ONT
10h 30m1 stop
$321Volaris
Find Deal
Sat, Apr 25 - Fri, May 1
Multiple Airlines Logo
3:21 pm - 1:35 pmONT-CUN
19h 14m1 stop
Multiple Airlines Logo
12:31 pm - 4:33 pmCUN-ONT
31h 02m1 stop
$322Multiple Airlines
Find Deal
Mon, Dec 1 - Sat, Dec 6
Volaris Logo
11:59 pm - 2:00 pmONT-CUN
11h 01m1 stop
Volaris Logo
10:39 am - 8:11 pmCUN-ONT
12h 32m1 stop
$325Volaris
Find Deal
Fri, Feb 6 - Mon, Feb 9
Multiple Airlines Logo
7:33 pm - 9:07 amONT-CUN
34h 34m2 stops
Multiple Airlines Logo
12:31 pm - 4:33 pmCUN-ONT
31h 02m1 stop
$326Multiple Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Volaris Logo
11:59 pm - 10:25 amONT-CUN
8h 26m1 stop
Volaris Logo
1:10 pm - 8:11 pmCUN-ONT
9h 01m1 stop
$327Volaris
Find Deal
Mon, Mar 16 - Fri, Mar 20
Volaris Logo
11:59 pm - 2:00 pmONT-CUN
11h 01m1 stop
Volaris Logo
4:18 pm - 10:52 pmCUN-ONT
9h 34m1 stop
$331Volaris
Find Deal
Fri, Jan 16 - Tue, Jan 20
Aeromexico Logo
10:30 pm - 9:58 amONT-CUN
8h 28m1 stop
Aeromexico Logo
8:00 am - 9:07 pmCUN-ONT
16h 07m1 stop
$332Aeromexico
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Thu, Jan 22 - Tue, Feb 10
Frontier Logo
12:58 am - 5:20 pmONT-CUN
13h 22m1 stop
Frontier Logo
2:48 pm - 4:33 pmCUN-ONT
28h 45m2 stops
$366Frontier
Find Deal
Sun, Nov 30 - Sat, Dec 6

Volaris flights from Ontario to Cancún

Our best Volaris deals on Ontario to Cancún flight tickets
Volaris
Feb 4
ONT11:59 pmOntario
11h 01m
1 stop
CUN2:00 pmCancun
Feb 8
CUN10:39 amCancun
12h 32m
1 stop
ONT8:11 pmOntario
$320
Find similar
Volaris
Apr 25
ONT12:57 amOntario
10h 51m
1 stop
CUN1:48 pmCancun
May 1
CUN10:53 amCancun
10h 30m
1 stop
ONT7:23 pmOntario
$321
Find similar
Volaris
Feb 6
ONT11:59 pmOntario
11h 01m
1 stop
CUN2:00 pmCancun
Feb 9
CUN10:39 amCancun
12h 32m
1 stop
ONT8:11 pmOntario
$325
Find similar

United Airlines flights from Ontario to Cancún

Our best United Airlines deals on Ontario to Cancún flight tickets
United Airlines
Nov 15
ONT6:38 pmOntario
19h 42m
1 stop
CUN5:20 pmCancun
Nov 22
CUN4:30 pmCancun
9h 21m
1 stop
ONT10:51 pmOntario
$639
Find similar
United Airlines
Nov 12
ONT5:05 amOntario
7h 40m
1 stop
CUN3:45 pmCancun
Nov 17
CUN1:35 pmCancun
12h 16m
1 stop
ONT10:51 pmOntario
$677
Find similar
United Airlines
Nov 16
ONT6:05 amOntario
6h 54m
1 stop
CUN3:59 pmCancun
Nov 19
CUN4:51 pmCancun
7h 58m
1 stop
ONT9:49 pmOntario
$702
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
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

Price

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 1/18

6:00 am-4:05 pm

1 stop7h 05m

Cancun

Thu 1/22

3:45 pm-11:58 pm

1 stop11h 13m

$307

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Wed 2/4

11:59 pm-2:00 pm

1 stop11h 01m

Cancun

Sun 2/8

10:39 am-8:11 pm

1 stop12h 32m

$320

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sat 4/25

12:57 am-1:48 pm

1 stop10h 51m

Cancun

Fri 5/1

10:53 am-7:23 pm

1 stop10h 30m

$321

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 12/1

3:21 pm-1:35 pm

1 stop19h 14m

Cancun

Sat 12/6

12:31 pm-4:33 pm

1 stop31h 02m

$322

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Fri 2/6

11:59 pm-2:00 pm

1 stop11h 01m

Cancun

Mon 2/9

10:39 am-8:11 pm

1 stop12h 32m

$325

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Thu 12/4

7:33 pm-9:07 am

2 stops34h 34m

Cancun

Thu 12/11

12:31 pm-4:33 pm

1 stop31h 02m

$326

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Mon 3/16

11:59 pm-10:25 am

1 stop8h 26m

Cancun

Fri 3/20

1:10 pm-8:11 pm

1 stop9h 01m

$327

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Fri 1/16

11:59 pm-2:00 pm

1 stop11h 01m

Cancun

Tue 1/20

4:18 pm-10:52 pm

1 stop9h 34m

$331

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Thu 1/22

10:30 pm-9:58 am

1 stop8h 28m

Cancun

Tue 2/10

8:00 am-9:07 pm

1 stop16h 07m

$332

OntarioCancún

ONT - CUN

ONTCUN

Ontario

Sun 11/30

12:58 am-5:20 pm

1 stop13h 22m

Cancun

Sat 12/6

2:48 pm-4:33 pm

2 stops28h 45m

$366

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cancún from

How to get the cheapest flight ticket from Ontario to Cancún

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Cancún?

If you don’t want to visit Cancún in July, then you should wait until February to fly from Ontario, when ticket prices are also cheap, with an average price of $498.

What is the cheapest day to depart on your flight to Cancún?

The cheapest day to depart from Ontario to Cancún is on a Tuesday when prices can be found for as low as $460. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $565. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

What is the cheapest time of day to depart on your flight to Cancún?

Our most recent data shows that the best time of day to fly to Cancún is in the afternoon. Flights from Ontario to Cancún during this time can be as low as $270. Flights to Cancún are more costly in the evening, with an average ticket price of $551. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Cancún?

You are more likely to see cheaper flights to Cancún from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $528 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from Ontario for as low as $477 on momondo.

How have Ontario to Cancún flight prices changed over time?

As of November 2025, prices for Ontario to Cancún flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Cancún

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Cancún according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Cancún (ONT to CUN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Cancún

Direct flights

None
There are no direct flights from Ontario to Cancún. There are no popular flight routes from Ontario to Cancún.
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  • How far is Ontario to Cancun by plane?

    The straight-line distance from Ontario to Cancun is 2074.6 mi. By plane, this route typically takes 7h 05m.

  • When did momondo last update prices for flights from Ontario Airport to Cancun Airport?

    Prices for flights from Ontario Airport to Cancun Airport were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to Cancun Airport?

  • How old do you have to be to fly from Ontario Airport to Cancun Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Cancun Airport.

  • What documentation or ID do you need to fly to Cancun Airport?

    The travel and health documents required for your trip to Cancun Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cancun Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Cancún?

Best airlines flying from Ontario to Cancún

Compare and see reviews for airlines that fly from Ontario to Cancún with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $243Free CancellationRating
5.8
3,116 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $286Free CancellationRating
8.0
11,246 reviews
Search Alaska Airlines flights
VolarisPriceFrom $313Free CancellationRating
6.7
1,151 reviews
Search Volaris flights
United AirlinesPriceFrom $377Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
SouthwestPriceFrom $381Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
American AirlinesPriceFrom $468Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Playa del Carmen
Isla Mujeres
Holbox
Puerto Morelos
Akumal
Puerto Aventuras
Valladolid
Punta Sam

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Cancún?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cancún from Ontario.

Can I find flights from Ontario to Cancún with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Cancún flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Cancún?

momondo provides multiple filters to help you find the best flight to Cancún from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Cancún right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Cancún flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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