Ontario to Cancun ONT → CUN
Ontario International Airport (ONT) → Cancun International Airport (CUN)
The cheapest return found recently is $531 with American Airlines, 1 Dec – 6 Dec, found today. The cheapest one-way found recently is $208 with Volaris, 25 Jan 2027, found 5 days ago.
Return
The cheapest return fare on each of 4 departure dates is usually $516 to $567.
Cheapest return found recently
$531
1 Dec – 6 Dec · American Airlines
Ontario International Airport (ONT) → Cancun International Airport (CUN)
Leaves 6:00 a.m. · Return leaves 11:55 p.m. · 22 h 54 min of travel, both ways together
out 1 stop, back 1 stop
found today
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$531 1 Dec – 6 Decfound todaySee prices for these dates
$469 15 Mar 2027 – 25 Mar 2027found 5 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $345 to $469.
At $531, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 12 Nov to 15 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 5-night return fares leaving within 3 days of 1 Dec to compare.
Every date we hold
5 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 12 Nov – 19 Nov | $552 | United Airlines | Ontario International Airport (ONT) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 24 Nov – 28 Nov | $611 | Frontier Airlines | Ontario International Airport (ONT) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 1 Dec – 6 Dec | $531 | American Airlines | Ontario International Airport (ONT) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found today | See prices for these dates |
| 15 Mar 2027 – 25 Mar 2027 | $469 | Volaris | Ontario International Airport (ONT) → Cancun International Airport (CUN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
Which month looks cheapest?
March 2027 is the cheapest month — from $469.
Airlines on the cheapest dates: United Airlines, Frontier Airlines, American Airlines, Volaris.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$208
25 Jan 2027 · Volaris
Ontario International Airport (ONT) → Cancun International Airport (CUN)
Leaves 12:41 a.m. · 10 h 25 min trip
1 stop
found 5 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$208 25 Jan 2027found 5 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 20 days, 26 Sept to 16 Oct, the cheapest one-way we saw each day was $208 to $582.
At $208, the cheapest one-way found recently is at the low end of that range.
20 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 25 Jan 2027 to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 25 Jan 2027 | $208 | Volaris | Ontario International Airport (ONT) → Cancun International Airport (CUN) | 1 stop | found 5 days ago | Open this trip |
Airlines on the cheapest dates: Volaris.
Premium cabin fares from Ontario to Cancun
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 1 Dec – 6 Dec in another cabin: Premium economy · Business · First
Today's prices for 25 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ontario to Cancun?
Return
Fares 90 to 179 days before departure were typically 36% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $562 | $470 | +56% | 14 |
| 7–13 days | $470 | $445 | +31% | 12 |
| 14–29 days | $552 | $362 | +54% | 17 |
| 30–59 days | $481 | $362 | +34% | 25 |
| 60–89 days | $521 | $381 | +45% | 25 |
| 90–179 days | $359 | $345 | Cheapest seen | 25 |
| 180+ days | $360 | $360 | +0% | 12 |
One-way
Not enough history yet: in 20 days of one-way prices, 26 Sept to 16 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Los Angeles → Cancun
56 km from Ontario
$433
$98 less than flying from Ontario
1 Dec – 6 Dec · LAX → CUN · out 1 stop, back 1 stop
found today
Palm Springs → Cancun
104 km from Ontario
$581
$50 more than flying from Ontario
11 Dec – 14 Dec · PSP → CUN · out 1 stop, back 1 stop
found 2 days ago
Long Beach → Cancun
60 km from Ontario
$619
$88 more than flying from Ontario
12 Nov – 19 Nov · LGB → CUN · out 1 stop, back 1 stop
found 3 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Los Angeles → Cancun
56 km from Ontario
$304
$96 more than flying from Ontario
3 Jan 2027 · SNA → CUN · 2 stops
found 3 days ago
Long Beach → Cancun
60 km from Ontario
$371
$163 more than flying from Ontario
25 Jan 2027 · LGB → CUN · 1 stop
found 5 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 1 Dec – 6 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work