Cheap flights from Montreal to Denver from C$931 YHU, YUL → DEN
St. Hubert Airport (YHU), Montreal-Pierre Elliott Trudeau International Airport (YUL) → Denver International Airport (DEN)
The cheapest return found recently is C$931 (US$653) with United Airlines, 1 Jan 2027 – 4 Jan 2027, found 2 days ago.
- Cheapest return found recently
- C$931 (US$653), 1 Jan 2027 to 4 Jan 2027
- Usual return price
- C$667 (US$468) to C$815 (US$572)
- Cheapest month to fly
- May 2027, return fares from C$636 (US$446) found in the last 7 days
Return
The cheapest return fare on each of 3 departure dates is usually C$667 (US$468) to C$815 (US$572).
Cheapest return found recently
C$931 (US$653)
1 Jan 2027 – 4 Jan 2027 · United Airlines
Montreal-Pierre Elliott Trudeau International Airport (YUL) → Denver International Airport (DEN)
Leaves 3:00 p.m. · Return leaves 5:50 a.m. · 14 h 46 min of travel, both ways together
out 1 stop, back 1 stop
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
C$931 (US$653) 1 Jan 2027 – 4 Jan 2027found 2 days agoSee prices for these dates
C$636 (US$446) 22 May 2027 – 2 Jun 2027found 6 days agoSee prices for these dates
What have prices looked like?
Over 31 days, 25 Sept to 11 Nov, the cheapest return we saw each day was C$636 (US$446) to C$872 (US$612).
At C$931 (US$653), the cheapest return found recently is above that range.
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 3 departure dates from 1 Jan 2027 to 23 May 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 3-night return fares leaving within 3 days of 1 Jan 2027 to compare.
Every date we hold
7 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Jan 2027 – 4 Jan 2027 | C$931 (US$653) | United Airlines | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Denver International Airport (DEN) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 22 May 2027 – 2 Jun 2027 | C$636 (US$446) | WestJet | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Denver International Airport (DEN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 23 May 2027 – 2 Jun 2027 | C$698 (US$490) | WestJet | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Denver International Airport (DEN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
May 2027 is the cheapest month — from C$636 (US$446).
Airlines on the cheapest dates: WestJet, United Airlines.
Premium cabin fares from Montreal to Denver
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 Jan 2027 – 4 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Montreal to Denver?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 25 Sept and 11 Nov (31 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 |
|---|---|---|---|---|
| 14–29 days | C$689 (US$483) | C$679 (US$476) | Cheapest seen | 11 |
| 30–59 days | C$777 (US$545) | C$777 (US$545) | +13% | 12 |
| 60–89 days | C$807 (US$566) | C$807 (US$566) | +17% | 13 |
| 90–179 days | C$899 (US$631) | C$892 (US$626) | +31% | 10 |
| 180+ days | C$887 (US$622) | C$636 (US$446) | +29% | 14 |
Live price for these dates
The cheapest return found recently is for 1 Jan 2027 – 4 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Montreal to Denver?
The cheapest return found recently is C$931 (US$653) with United Airlines, 1 Jan 2027 to 4 Jan 2027, found 2 days ago. The cheapest return we hold, of any age, is C$636 (US$446) with WestJet, 22 May 2027 to 2 Jun 2027, found 6 days ago. The cheapest return fare on each of 3 departure dates is usually C$667 (US$468) to C$815 (US$572).
What is the cheapest month to fly from Montreal to Denver?
May 2027 is the cheapest month for a return, from C$636 (US$446), 22 May 2027 to 2 Jun 2027, found 6 days ago.
How far ahead should I book a flight from Montreal to Denver?
In 31 days of prices between 25 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure.
Which airlines have the cheapest flights from Montreal to Denver?
Between 1 Jan 2027 and 23 May 2027, WestJet has the cheapest return on 2 of the 3 departure dates we hold, and United Airlines on 1.
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 2026-11-12, US dollars in brackets. Fares change, so check today's price before you book. How our prices work