Air Canada's Signature Class features lie-flat seats and exclusive lounge access.
Air Canada offers complimentary meals for all fare classes on international flights.

Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $563 (TAP AIR PORTUGAL) |
One-way from | $319 (Booking.com) |
Popular in | December |
Cheapest in | May |
Average price | $679 |
Good round-trip deal | $698 or less |
Good one-way deal | $694 or less |
Fly from
Fly to
Route
Depart
Return
Price
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Sun 12/7
9:45 pm-9:35 pm
1 stop18h 50m
London Heathrow
Sun 12/14
7:55 pm-8:15 pm
1 stop29h 20m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Mon 11/17
7:10 pm-7:10 am
Nonstop7h 00m
London Heathrow
Mon 11/24
1:25 pm-4:10 pm
Nonstop7h 45m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Mon 12/1
7:10 pm-7:10 am
Nonstop7h 00m
London Heathrow
Sun 12/7
1:25 pm-4:10 pm
Nonstop7h 45m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Tue 11/25
7:10 pm-7:10 am
Nonstop7h 00m
London Heathrow
Tue 12/2
1:25 pm-4:10 pm
Nonstop7h 45m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Mon 12/1
7:10 pm-7:10 am
Nonstop7h 00m
London Heathrow
Thu 12/4
7:30 pm-12:00 pm
1 stop21h 30m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Mon 12/1
3:10 pm-6:30 am
1 stop10h 20m
London Heathrow
Tue 12/9
8:15 pm-11:45 am
2 stops20h 30m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Thu 11/13
2:00 pm-6:30 am
1 stop11h 30m
London Heathrow
Fri 11/21
8:15 pm-11:45 am
2 stops20h 30m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Mon 11/24
5:10 pm-1:00 pm
2 stops14h 50m
London Heathrow
Mon 12/1
6:40 pm-3:10 pm
1 stop25h 30m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Mon 11/17
4:45 pm-8:05 am
1 stop10h 20m
London Heathrow
Mon 11/24
9:00 am-7:22 pm
2 stops15h 22m
MontrealLondon
YUL - LHR
YULLHR
Montreal Pierre Elliott Trudeau Intl
Thu 11/20
7:05 pm-1:45 pm
1 stop13h 40m
London Heathrow
Mon 11/24
6:30 am-5:20 pm
1 stop15h 50m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, January is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport (average of $502). Flying from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport in July is currently the most expensive (average of $719). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport at noon. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.
About 20% of weekly flights between Montreal and London have experienced delays in the past year, with the average delay time being 164 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Sunday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Thai Airways have had the lowest number of delays on this route, with just 15% of flights being delayed.
Lisbon (LIS) – chosen by Cheapflights users on 50% of 1-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to London Heathrow Airport on Cheapflights.
Flights via Paris (CDG) have the shortest average one-way travel time for 1-stop routes: 10h 00m.
Flights via Paris (CDG) have the shortest average one-way travel time for 1-stop routes: 10h 00m.
Flights via Zurich (ZRH) offer the fastest connection on this route, with an average layover time of 0h 55m.
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Alison,May 2025
LHR - MAN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Alison,May 2025
LHR - MAN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Alison,May 2025
LHR - MAN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Alison,May 2025
LHR - MAN
Food
Crew
Boarding
Overall
Entertainment
Comfort
Reviews
Alison,May 2025
LHR - MAN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$543 | Average$732 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$549 | Average$766 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$582 | Average$801 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$588 | Average$761 | FlexibilityNo cancel fee | On-time70% |