iDiscover the best prices by selecting your travel dates.

Air Transat
TS 729
→ Outbound · 28 Sep
LGW
London Gatwick
YUL
Montreal
11:35 AM
28 Sep
7h 40m
Direct
2:15 PM
28 Sep
← Return · 8 Oct
YUL
Montreal Pierre Elliott Trudeau
LGW
London Gatwick
8:35 PM
8 Oct
9h 10m
10:45 AM
9 Oct
from
£422
Return · per adult

British Airways
BA 0095
→ Outbound · 9 Nov
LHR
London Heathrow
YUL
Montreal
4:45 PM
9 Nov
7h 30m
Direct
7:15 PM
9 Nov
← Return · 19 Nov
YUL
Montreal Pierre Elliott Trudeau
LHR
London Heathrow
9:15 PM
19 Nov
6h 50m
Direct
9:05 AM
20 Nov
from
£541
Return · per adult

Lufthansa
LH 2485
→ Outbound · 21 Dec
LHR
London Heathrow
YUL
Montreal
6:35 AM
21 Dec
16h 45m
6:20 PM
21 Dec
← Return · 31 Dec
YUL
Montreal Pierre Elliott Trudeau
LHR
London Heathrow
7:00 AM
31 Dec
18h 20m
6:20 AM
1 Jan
from
£923
Return · per adult

Virgin Atlantic
VS 7048
→ Outbound · 1 Feb
LHR
London Heathrow
YUL
Montreal
10:00 AM
1 Feb
12h 15m
5:15 PM
1 Feb
← Return · 11 Feb
YUL
Montreal Pierre Elliott Trudeau
LGW
London Gatwick
5:00 PM
11 Feb
11h 00m
9:00 AM
12 Feb
from
£563
Return · per adult

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Popular airlines to Montreal
Top 10 airlines flying from London to Montreal
Cheapest and average return economy fares by carrier, from our sampled live searches. Fares change constantly — tap Search to see live prices for your dates.
| Airline | Cheapest | Average | Flights | Search |
|---|---|---|---|---|
British Airways | £387 | £592 | Direct available | |
Air Canada | £393 | £502 | Direct available | |
Air Transat | £402 | £509 | Direct available | |
Lufthansa | £408 | £533 | Direct available | |
American Airlines | £475 | £580 | Direct available | |
Virgin Atlantic | £501 | £689 | With stops | |
United Airlines | £552 | £633 | With stops | |
Delta | £556 | £556 | With stops | |
Turkish Airlines | £949 | £1942 | With stops | |
Aer Lingus | £989 | £989 | With stops |
Everything you should know
Insights & trends for London to Montreal flights
Data-powered insights to help you find the cheapest flights, the best time to fly and much more.
How much is a return flight from London to Montreal?
Return flights from London to Montreal typically cost between £426 and £448 in August, though fares move with demand, season and how early you book. The lowest fare our search found recently was £387 — a great price and well below the usual range, so a price near this is worth grabbing. Keeping your dates flexible and comparing nearby days is the easiest way to land at the cheaper end.
What is the cheapest day to fly to Montreal?
The cheapest day to depart to Montreal is usually Monday, when fares start from around £402 — midweek departures tend to be quieter and cheaper. Sunday is typically the most expensive day to fly out (around £551), as weekend travel is popular with leisure and business travellers alike. Where your plans allow, moving your outbound to a cheaper weekday can noticeably lower the total fare.
What is the cheapest time of day to fly to Montreal?
Flights to Montreal are generally cheapest departing in the evening, with fares from around £387. Departures in the morning tend to cost more (about £399), as those slots are more convenient and in higher demand. Picking an off-peak departure time is a simple way to trim the price without changing your dates.
What is the cheapest London airport to fly to Montreal from?
The cheapest return flights to Montreal depart from London Heathrow (LHR), from around £459. London has several airports serving this route and fares can vary between them — Stansted (STN) is often the priciest at around £949. It's worth checking which London airport is both cheapest and most convenient for you before booking.
Can I save money by flying with a stopover to Montreal?
For Montreal, prices are generally cheapest when you fly direct, with fares from around £387 versus about £399 for a 1-stop itinerary. A direct flight also saves you time and the hassle of a connection, so it's usually the better all-round choice on this route. Stopovers only tend to pay off here if a particular date or airline happens to be cheaper.
Average return fare to Montreal by month
The cheapest month to fly from London to Montreal is typically June, with return economy fares from £387. Fares are usually highest in July (around £617). Figures are indicative, from sampled live fares, and change with demand.
Cheapest sampled return economy fare, London to Montreal, per month (gaps estimated). Search live for exact prices.
When to book flights from London to Montreal
Are your dates flexible? These are the ideal times to fly to Montreal based on our flight data — find the cheapest days for a 7-day trip.
Cheap flights to Montreal from across the UK
You don't have to fly from London. The cheapest UK departure for Montreal is currently London from £459. Compare return economy fares and typical flight times below — figures are indicative from sampled fares.
Indicative cheapest return economy fares by UK origin. Pick your dates in the search form above.
Weather in Montreal
Monday
Fog
21°C
31/08/2026
Tuesday
Overcast
22°C
01/09/2026
Wednesday
Rain
21°C
02/09/2026
Thursday
Rain
20°C
03/09/2026
Friday
Drizzle
22°C
04/09/2026
Saturday
Drizzle
19°C
05/09/2026
Sunday
Overcast
22°C
06/09/2026
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Reviews of airlines servicing Montreal
See what customers who have flown with American Airlines, Delta, Air Canada and more to Montreal have to say. Each airline is scored on boarding, crew, food, comfort and entertainment.

American Airlines
1,124 reviews

Delta
1,130 reviews

Air Canada
1,023 reviews

Lufthansa
1,100 reviews

United
900 reviews

American Airlines
8.8Very goodMy trip with American Airlines was smooth from start to finish. The staff were courteous, the boarding process was organized, and the flight itself was comfortable. Overall, a very positive experience.
Our travel experts
Good to know — flights from London to Montreal
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Find better results for your trip to Montreal
Popular flights to Montreal
About flights to Montreal
Overview
Montreal, the cultured heart of French-speaking Quebec, charms with cobbled old streets, grand cathedrals, festival energy and a celebrated food scene — a European-flavoured favourite for UK travellers in North America. The city's main gateway is Montréal-Trudeau International Airport (YUL), which handles all scheduled passenger flights. Comparing every fare in one place makes finding the right flight from the UK quick and simple.
Best time to fly to Montreal
Montreal has four vivid seasons. Late spring (May to June) and autumn (September to October) bring mild days and gorgeous colours, while summer buzzes with festivals and winter is cold, snowy and great for winter sports. Fares typically ease outside the summer and Christmas peaks, so travelling in the shoulder months stretches your budget — check the price charts on this page for your dates.
Airlines and routes
Air Canada and British Airways fly direct from London Heathrow to Montréal-Trudeau in around 7 to 8 hours. Air Transat also serves the route, and connecting options via eastern Canada, the US or Europe can be better value. Comparing carriers for your exact dates is the surest way to secure the lowest fare.
Things to do in Montreal
Montreal blends old-world elegance with modern flair:
- Old Montreal (Vieux-Montréal): cobbled lanes, historic squares and the striking Notre-Dame Basilica.
- Mount Royal Park: a leafy hilltop with sweeping views over the city and river.
- Notre-Dame Basilica: a breathtaking Gothic Revival interior of deep blues and gold.
- Jean-Talon Market: a lively market brimming with Quebec produce and delicacies.
- Plateau Mont-Royal: a bohemian district of murals, cafes and colourful staircases.
At Montréal-Trudeau International Airport (YUL)
Montréal-Trudeau sits about 20 km west of downtown Montreal, with duty-free shopping, currency exchange, ATMs and dining. The 747 express bus runs into the city centre around the clock, alongside taxis, ride-hailing and shuttles; a new REM light-rail link also serves the airport. Note the older Mirabel airport (YMX) now handles only cargo.
Top tips for finding cheap flights to Montreal
- Book roughly 2–4 months ahead for the best value — transatlantic fares climb close to departure.
- Avoid the summer festival and Christmas peaks; spring and autumn bring lower prices.
- Be flexible with your dates — midweek departures are often cheaper than weekends.
- Compare direct and one-stop options; a short connection can sometimes save a good deal.
Travel essentials
- UK travellers need an approved eTA before flying — apply online in advance.
- A valid e-passport is required; no vaccinations are needed for entry.
- The local currency is the Canadian dollar (CAD).
Baggage & hand-luggage allowance for flights to Montreal
Your allowance to Montreal depends on the airline and the fare you book. The table below shows typical long-haul allowances so you know roughly what to expect — always confirm the exact limits with your airline before you fly.
| Fare type | Hand baggage | Checked baggage |
|---|---|---|
| Basic / Light economy | 1 small under-seat bag | Usually none — add for a fee |
| Standard economy | 1 cabin bag + 1 personal item | Typically 1 × 23 kg |
| Premium economy | 1–2 cabin bags + personal item | Typically 2 × 23 kg |
| Business / First | 2 cabin bags + personal item | Typically 2 × 32 kg |
Indicative only. Allowances vary by airline, route and fare — always check your airline's baggage policy.
Packing & baggage tips
- Full-service carriers (e.g. British Airways, Turkish Airlines, KLM) usually include a checked bag on long-haul economy fares; basic/low-cost fares often don't.
- Cabin (hand) bag size is commonly around 56 × 45 × 25 cm — confirm your airline's limit before you pack.
- Liquids in hand luggage must be in containers of 100 ml or less, inside one clear resealable bag.
- Weigh your bags at home — airport excess-baggage fees are far higher than pre-booked allowances.
- Extra or heavier bags are almost always cheaper added online in advance than at the airport.
FAQs — booking Montreal flights
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