London City
Montreal Pierre Elliott Trudeau Intl
2 stops
30h 15mMultiple Airlines
London Heathrow
Montreal Pierre Elliott Trudeau Intl
1 stop
12h 25mTAP AIR PORTUGAL
London Heathrow
Montreal Pierre Elliott Trudeau Intl
Nonstop
7h 10mBritish Airways
London Gatwick
Montreal Pierre Elliott Trudeau Intl
Nonstop
7h 40mAir Transat
London Heathrow
Montreal Pierre Elliott Trudeau Intl
Nonstop
7h 05mLufthansa
London City
Montreal Pierre Elliott Trudeau Intl
2 stops
37h 05mMultiple Airlines
London Gatwick
Montreal Pierre Elliott Trudeau Intl
1 stop
15h 35mMontreal Pierre Elliott Trudeau Intl
London Gatwick
1 stop
13h 00mTAP AIR PORTUGAL
London Gatwick
Montreal Pierre Elliott Trudeau Intl
1 stop
22h 50mMontreal Pierre Elliott Trudeau Intl
London Gatwick
Nonstop
6h 45mMultiple Airlines
London Heathrow
Montreal Pierre Elliott Trudeau Intl
Nonstop
7h 10mMontreal Pierre Elliott Trudeau Intl
London Heathrow
Nonstop
6h 35mBritish Airways
London City
Montreal Pierre Elliott Trudeau Intl
1 stop
25h 05mMontreal Pierre Elliott Trudeau Intl
London City
1 stop
9h 25mVirgin Atlantic
London Heathrow
Montreal Pierre Elliott Trudeau Intl
2 stops
27h 46mMontreal Pierre Elliott Trudeau Intl
London Heathrow
2 stops
41h 15mAustrian Airlines
London Heathrow
Montreal Pierre Elliott Trudeau Intl
Nonstop
7h 40mMontreal Pierre Elliott Trudeau Intl
London Heathrow
Nonstop
6h 55mAir Canada
January
£2,299
February
£2,609
March
£2,214
April
£2,307
May
£2,507
June
£4,354
July
£2,261
August
£2,078
September
£2,120
October
£2,347
November
£2,250
December
£3,205
Currently, August is the cheapest month in which you can book a business class flight to Montreal. Flying business class to Montreal in June will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.