Montreal to London YHU, YUL → LGW, LHR, STN
St. Hubert Airport (YHU), Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Gatwick Airport (LGW), London Heathrow Airport (LHR), Stansted Airport (STN)
The cheapest return found recently is C$805 (US$569) with Air Canada, 11 Nov – 16 Nov, found yesterday. The cheapest one-way found recently is C$606 (US$428) with Air Canada, 20 Mar 2027, found 4 days ago.
Return
The cheapest return fare on each of 9 departure dates is usually C$807 (US$570) to C$1,039 (US$734).
Cheapest return found recently
C$805 (US$569)
11 Nov – 16 Nov · Air Canada
Montreal-Pierre Elliott Trudeau International Airport (YUL) → Stansted Airport (STN)
Leaves 6:50 p.m. · Return leaves 5:20 p.m. · 51 h 15 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
C$805 (US$569) 11 Nov – 16 Novfound yesterdaySee prices for these dates
C$641 (US$453) 3 Nov – 9 Novfound 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 C$641 (US$453) to C$873 (US$617).
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 9 departure dates from 1 Nov to 4 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 5-night return fares leaving within 3 days of 11 Nov to compare.
Every date we hold
38 fares on 9 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Nov – 30 Nov | C$1,199 (US$847) | French Bee | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Gatwick Airport (LGW) | out 1 stop, back 2 stops | found 6 days ago | See prices for these dates |
| 2 Nov – 30 Nov | C$999 (US$706) | Air Canada Rouge | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Heathrow Airport (LHR) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 3 Nov – 9 Nov | C$641 (US$453) | American Airlines | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Heathrow Airport (LHR) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 4 Nov – 9 Nov | C$837 (US$591) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → Stansted Airport (STN) | out 1 stop, back 2 stops | found 3 days ago | See prices for these dates |
| 9 Nov – 30 Nov | C$958 (US$677) | Air France | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Heathrow Airport (LHR) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 11 Nov – 16 Nov | C$664 (US$469) | American Airlines | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Heathrow Airport (LHR) | out 1 stop, back nonstop | found 5 days ago | See prices for these dates |
| 20 Nov – 25 Nov | C$807 (US$570) | American Airlines | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Heathrow Airport (LHR) | out 1 stop, back nonstop | found 5 days ago | See prices for these dates |
| 18 Dec – 2 Jan 2027 | C$1,942 (US$1,372) | Air Transat | St. Hubert Airport (YHU) → London Gatwick Airport (LGW) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 4 Jan 2027 – 11 Jan 2027 | C$1,039 (US$734) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Gatwick Airport (LGW) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from C$641 (US$453).
Airlines on the cheapest dates: American Airlines, Air Canada, French Bee, Air Canada Rouge, Air France, Air Transat.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
C$606 (US$428)
20 Mar 2027 · Air Canada
Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Gatwick Airport (LGW)
Leaves 6:50 p.m. · 21 h 50 min trip
2 stops
found 4 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
C$606 (US$428) 20 Mar 2027found 4 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 22 days, 27 Sept to 18 Oct, the cheapest one-way we saw each day was C$382 (US$270) to C$791 (US$559).
22 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 20 Mar 2027 to compare.
Every date we hold
2 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Mar 2027 | C$606 (US$428) | Air Canada | Montreal-Pierre Elliott Trudeau International Airport (YUL) → London Gatwick Airport (LGW) | 2 stops | found 4 days ago | Open this trip |
Airlines on the cheapest dates: Air Canada.
Premium cabin fares from Montreal to London
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 11 Nov – 16 Nov in another cabin: Premium economy · Business · First
Today's prices for 20 Mar 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Montreal to London?
Return
Fares 30 to 59 days before departure were typically 19% 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$1,012 (US$715) | C$1,012 (US$715) | +24% | 7 |
| 7–13 days | C$1,026 (US$725) | C$967 (US$683) | +25% | 17 |
| 14–29 days | C$942 (US$666) | C$641 (US$453) | +15% | 14 |
| 30–59 days | C$818 (US$578) | C$794 (US$561) | Cheapest seen | 25 |
| 60–89 days | C$1,169 (US$826) | C$1,039 (US$734) | +43% | 23 |
| 180+ days | C$929 (US$656) | C$929 (US$656) | +14% | 8 |
One-way
Fares 180 or more days before departure were typically 17% lower than 30 to 59 days before departure.
From the cheapest one-way each day between 27 Sept and 18 Oct (22 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$524 (US$370) | C$459 (US$324) | +21% | 8 |
| 90–179 days | C$791 (US$559) | C$606 (US$428) | +83% | 12 |
| 180+ days | C$433 (US$306) | C$433 (US$306) | Cheapest seen | 11 |
Live price for these dates
The cheapest return found recently is for 11 Nov – 16 Nov. 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