Montreal to Cancun YHU, YUL → CUN
St. Hubert Airport (YHU), Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN)
The cheapest return found recently is C$460 (US$325) with WestJet, 3 Dec – 20 Dec, found today. The cheapest one-way found recently is C$386 (US$273) with Porter Airlines Canada, 1 Jan 2027, found yesterday.
Return
The cheapest return fare on each of 13 departure dates is usually C$568 (US$401) to C$761 (US$538).
Cheapest return found recently
C$460 (US$325)
3 Dec – 20 Dec · WestJet
Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN)
Leaves 6:45 a.m. · Return leaves 5:00 p.m. · 33 h 45 min of travel, both ways together
out 1 stop, back nonstop
found today
Cheapest nonstop return
C$686 (US$485)
20 Dec – 31 Dec · Air Canada
Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN)
Leaves 5:55 p.m. · Return leaves 10:30 a.m. · 9 h 5 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Every nonstop date from Montreal to Cancun
Found recently, and the cheapest we hold
C$460 (US$325) 3 Dec – 20 Decfound todaySee prices for these dates
C$439 (US$310) 3 Dec – 20 Decfound 3 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 C$439 (US$310) to C$514 (US$363).
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 13 departure dates from 24 Oct to 2 Jan 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 17-night return fares leaving within 3 days of 3 Dec to compare.
Every date we hold
43 fares on 13 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 24 Oct – 1 Nov | C$655 (US$463) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out 2 stops, back nonstop | found 3 days ago | See prices for these dates |
| 26 Oct – 2 Nov | C$610 (US$431) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 17 Nov – 27 Nov | C$594 (US$420) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back 1 stop | found 5 days ago | See prices for these dates |
| 19 Nov – 24 Nov | C$483 (US$341) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back 1 stop | found 6 days ago | See prices for these dates |
| 3 Dec – 20 Dec | C$439 (US$310) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 4 Dec – 7 Dec | C$599 (US$423) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back nonstop | found 5 days ago | See prices for these dates |
| 5 Dec – 11 Dec | C$568 (US$401) | United Airlines | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out 2 stops, back 2 stops | found 5 days ago | See prices for these dates |
| 19 Dec – 30 Dec | C$761 (US$538) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 20 Dec – 31 Dec | C$686 (US$485) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 21 Dec – 31 Dec | C$761 (US$538) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out 1 stop, back nonstop | found yesterday | See prices for these dates |
| 22 Dec – 31 Dec | C$808 (US$571) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out 1 stop, back nonstop | found yesterday | See prices for these dates |
| 23 Dec – 26 Dec | C$923 (US$652) | WestJet | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out 1 stop, back nonstop | found 5 days ago | See prices for these dates |
| 2 Jan 2027 – 16 Jan 2027 | C$524 (US$370) | Flair Airlines | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from C$439 (US$310).
Airlines on the cheapest dates: Air Canada, United Airlines, WestJet, Flair Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually C$409 (US$289) to C$444 (US$314).
Cheapest one-way found recently
C$386 (US$273)
1 Jan 2027 · Porter Airlines Canada
St. Hubert Airport (YHU) → Cancun International Airport (CUN)
Leaves 8:40 a.m. · 9 h trip
1 stop
found yesterday
Cheapest nonstop one-way
C$395 (US$279)
1 Jan 2027 · Flair Airlines
Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN)
Leaves 11:10 a.m. · 4 h 50 min trip
nonstop
found yesterday
Found recently, and the cheapest we hold
C$386 (US$273) 1 Jan 2027found yesterdayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 23 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was C$214 (US$151) to C$582 (US$411).
23 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?
Compared with the cheapest one-way fare on each of 3 departure dates from 21 Dec to 1 Jan 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 one-way fares leaving within 3 days of 1 Jan 2027 to compare.
Every date we hold
5 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 21 Dec | C$456 (US$322) | WestJet | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | 1 stop | found yesterday | Open this trip |
| 22 Dec | C$432 (US$305) | Porter Airlines Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Cancun International Airport (CUN) | 1 stop | found yesterday | Open this trip |
| 1 Jan 2027 | C$386 (US$273) | Porter Airlines Canada | St. Hubert Airport (YHU) → Cancun International Airport (CUN) | 1 stop | found yesterday | Open this trip |
Which month looks cheapest?
January 2027 is the cheapest month — from C$386 (US$273).
Airlines on the cheapest dates: Porter Airlines Canada, WestJet.
Premium cabin fares from Montreal 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 3 Dec – 20 Dec in another cabin: Premium economy · Business · First
Today's prices for 1 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Montreal to Cancun?
Return
Fares 30 to 59 days before departure were typically 44% 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 | C$858 (US$606) | C$590 (US$417) | +78% | 8 |
| 7–13 days | C$923 (US$652) | C$610 (US$431) | +91% | 12 |
| 14–29 days | C$667 (US$471) | C$510 (US$360) | +38% | 16 |
| 30–59 days | C$483 (US$341) | C$439 (US$310) | Cheapest seen | 25 |
| 60–89 days | C$524 (US$370) | C$444 (US$314) | +9% | 24 |
| 90–179 days | C$623 (US$440) | C$623 (US$440) | +29% | 8 |
| 180+ days | C$558 (US$394) | C$558 (US$394) | +16% | 7 |
One-way
Fares 90 to 179 days before departure were typically 14% lower than 30 to 59 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (23 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 |
|---|---|---|---|---|
| 30–59 days | C$276 (US$195) | C$276 (US$195) | +16% | 10 |
| 60–89 days | C$399 (US$282) | C$258 (US$182) | +68% | 19 |
| 90–179 days | C$237 (US$168) | C$214 (US$151) | Cheapest seen | 16 |
| 180+ days | C$340 (US$240) | C$279 (US$197) | +43% | 11 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Plattsburgh → Cancun
90 km from Montreal
C$1,244 (US$879)
C$784 (US$554) more than flying from Montreal
14 Mar 2027 – 27 Mar 2027 · PBG → CUN · out 2 stops, back 1 stop
found today
Montreal → Tulum
123 km from Cancun
C$1,425 (US$1,007)
C$965 (US$682) more than flying to Cancun
23 Dec – 30 Dec · YUL → TQO · out 1 stop, back 3 stops
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 3 Dec – 20 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: the price the seller showed on Aviasales; bags may cost extra. Canadian dollars at the Bank of Canada rate of 2026-10-16, US dollars in brackets. Fares change, so check today's price before you book. How our prices work