Paris → Montreal (CDG–YUL): five assumptions that trip up French travellers

Paris to Montreal feels like the gentlest long-haul trip there is. The language is French, the flight is under eight hours, and Air France’s morning departure lands in time for lunch. That familiarity is exactly why people arrive missing a document, or in the wrong coat. Here are the five assumptions worth checking, after the basics.

The basics. CDG and Montréal–Trudeau are 5,524 km (3,433 mi) apart on a great circle, from our airport coordinates. Our CDG–YUL route page estimates about 6h55 at a flat 800 km/h; Air France’s AF342 is scheduled at 7h30 westbound, departing 10:30 and arriving 12:00 local, while the evening AF345 home is scheduled at 6h55. At the time of writing, Air France, Air Canada and Air Transat each run one or two daily non-stops, according to FlightsFrom’s schedule data. Our route page shows the historical OpenFlights carrier list, which includes airlines that no longer fly it. KAYAK Partner puts the three airlines’ fares side by side.

Myth 1: “I’m French, I don’t need anything for Canada”

You do. French citizens, like most visa-exempt visitors flying to Canada, need an Electronic Travel Authorization (eTA) before they board. It costs C$7, and most applications are approved within minutes, though some take several days if officials want supporting documents. Apply a few days before you fly, not at the gate.

Things people get wrong:

• It’s linked to one passport. The eTA attaches to the passport you used to apply, and the airline scans that passport at check-in. Renew your passport and you need a new eTA.
• It lasts up to five years, or until that passport expires, whichever comes first, so check whether the one from your last trip is still valid.
• Only use the official site. The Government of Canada says plainly to apply “only on this official Government of Canada website”. Third-party sites charge many times the C$7 for the same form.
• Dual French–Canadian citizens don’t get an eTA; they need a Canadian passport.

Myth 2: “It’s the same French”

It’s the same language, and you’ll be understood everywhere. French is Quebec’s official language, and in the city of Montreal 85.7% of people consider themselves fluent in it. But the vocabulary has some traps that Parisians find funny for about a day. According to the overview of Quebec French:

• A dépanneur is a corner shop, not a tow-truck driver.
• Magasiner means to go shopping.
• Your char is your car, not a tank, and you chauffer it rather than heat it.
• A courriel is an email.
• Your blonde is your girlfriend, whatever her hair colour.

The accent is distinct too, and Quebecers will notice yours immediately. It’s fine. What does land badly is correcting someone’s French or switching to English on the assumption that a Montrealer would prefer it. Downtown, many people move between French and English mid-sentence; follow their lead.

Myth 3: “The price on the tag is what I’ll pay”

Montreal prices work the North American way, which is the opposite of what you’re used to.

• Sales tax is added at the till. In Quebec that’s the federal GST at 5% plus Quebec’s QST at 9.975%, about 15% on top of the shelf price for most things. A €20 lunch mindset becomes a surprisingly large bill.
• Tipping is expected at sit-down restaurants, bars and in taxis, far more than in France, and card terminals will prompt you with percentages. Service isn’t included the way service compris is at home.
• Canadian dollars, mostly by card. Contactless is normal. A card without foreign transaction fees matters more than the exchange office. Wise Partner is one option; our money cards comparison covers others, and our currency page has today’s EUR–CAD rate.
• Plugs. Canada uses Type A and B plugs at 120 V. French plugs won’t fit. Phone and laptop chargers are dual-voltage and only need an adaptor; 230 V-only hair dryers and straighteners won’t work properly.

Myth 4: “A good Paris winter coat will do”

This is the one that hurts. Montreal’s winter isn’t a colder Paris winter; it’s a different climate.

The airport records a January daily mean of −9.2°C, with average lows of −13.5°C, and around 216 cm of snow a year, most of it between December and February. Wind makes it feel colder still. What to bring for a December–March trip:

• A proper insulated, windproof parka that covers your hips. A wool city coat is for October.
• Waterproof boots with grip. Pavements alternate between packed snow, slush and salt. Leather city shoes will be ruined in a day.
• Hat, gloves and something for your face. This is non-negotiable in January.
• Layers you can take off. Indoors is heated hard, and the Underground City (RÉSO) links 32 km of tunnels, shops and métro stations, so you’ll go from −15°C to +22°C in a doorway.

If you don’t own winter kit, REI Partner is one place to look, though buying in Montreal itself, where shops are stocked for the real thing, is often the better move.

Autumn and spring visitors: October averages 8.9°C and April 6.2°C, so a warm jacket is still needed.

Myth 5: “The métro goes to the airport”

Not yet. Montreal’s new REM light-rail line doesn’t reach Trudeau at the time of writing. Since June 2026 the STM has run a temporary shuttle, route 815, between the REM’s Des Sources station and the airport, but it was scheduled to run only until 19 October 2026.

The dependable option is the 747 express bus, which runs 24 hours a day, every day. The C$11.25 fare includes a 24-hour pass for buses, métro and REM in zone A, so it covers your first day of getting around too. Buy it from the machines in the arrivals hall (cash or card), through the Chrono app, or with exact change in coins on board — no notes. The 747 serves Lionel-Groulx métro and downtown, with the downtown terminus now on René-Lévesque at Berri. Allow 45–70 minutes for the downtown route depending on traffic.

Our YUL airport page has more.

The clock, briefly

Montreal is six hours behind Paris. France’s clocks go back on 25 October 2026 and Quebec’s on 1 November, so for that week the gap is five hours. Westbound jet lag is the easier direction; the CDC Yellow Book suggests evening light helps you adjust after westward flights. Land at noon, stay outside until dark, and go to bed at a normal Montreal time. The overnight flight home is the hard part: you land at CDG around 08:00 having slept little, so keep that day light.

See our Canada country page for holidays, entry rules and costs. Heading on to Toronto, then somewhere warmer? Our Toronto–Mexico City briefing has you covered.