Cheap Flights to Montreal from Dublin: €310 Deals

Few transatlantic routes punch above their weight quite like Dublin to Montreal. Irish travellers keep finding fares that beat many European hubs, with returns sometimes dipping below €310 on Aer Lingus. The catch? Prices shift fast, and the cheapest route isn’t always the most obvious one—knowing where to look matters.

Cheapest from Dublin: €310 · Skyscanner low: $209 · Aer Lingus base: €310.03 · Google Flights start: €436 · Typical one-way low: $293

Key pricing data across major booking platforms, drawn from live search results.

Cheap flights from Dublin to Montreal

Aer Lingus dominates the budget conversation for Irish travellers, with returns sometimes starting at €310.03 when booked early enough (Aer Lingus direct pricing). That said, aggregator sites often surface lower one-way numbers—Skyscanner shows $209 exits from Dublin, though those prices typically exclude checked bags and seat selection. The lesson: always cross-check the total cost before committing.

Current lowest prices

Based on real-time search data from multiple aggregators, one-way fares from Dublin to Montreal break down as follows:

• Skyscanner: from $209 one-way (Skyscanner)
• Expedia: from $293 one-way (Expedia)
• Google Flights: from €436 round-trip start

The implication: if you’re flexible on dates, September consistently delivers the lowest fares—$211 one-way according to Skyscanner’s current data (Skyscanner seasonal pricing). February and May are the other sweet spots, with Expedia noting February ranges from $487 to $864 per traveller (Expedia).

Booking tips

• Book five months ahead for optimal pricing, according to Skyscanner’s analysis (Skyscanner booking window research)
• Check Aer Lingus directly for Ireland-to-Canada deals starting at €220.75 (Aer Lingus Canada fares)
• Use Google Flights’ price tracking to monitor fluctuations without committing
• Compare total costs including baggage, not just the base fare

One-way vs return deals

One-way fares appear lower on aggregators, but return tickets from Aer Lingus sometimes work out cheaper per leg when booked as a package. For example, Aer Lingus lists June 20-27, 2026 returns at €519.52—that’s under €260 per direction with a checked bag included (Aer Lingus June dates). Always price both options before deciding.

Dublin to Montreal direct flights

Air Canada operates the primary direct route from Dublin (DUB) to Montreal–Trudeau International Airport (YUL), with a flight duration of 6 hours 30 minutes (FlightsFrom.com route data). The route spans approximately 2,965 miles between the two cities (Expedia distance data). Direct options are limited compared to connecting alternatives, which means availability can tighten during during peak travel windows.

Available direct options

Currently, Air Canada holds the position of primary direct operator on this route (FlightsFrom.com). Aer Lingus, while Irish-flagged, typically routes through connections rather than offering non-stop DUB-YUL service. Check both carriers directly for seasonal schedule adjustments, as aircraft rotation can add or remove direct frequencies throughout the year.

Airlines offering directs

• Air Canada: Primary direct operator, DUB-YUL non-stop
• Aer Lingus: Primarily connecting via hub, occasional seasonal direct when aircraft permits

Beyond direct carriers, several airlines serve the route with connections: Lufthansa (via Frankfurt or Munich), Swiss International Air Lines (via Zurich), British Airways (via London Heathrow), KLM (via Amsterdam), and Air France (via Paris Charles de Gaulle) (Expedia multi-carrier options). These connections add 4-8 hours to total journey time but sometimes appear at competitive price points.

Direct vs connecting pros

Direct flights win on time but often lose on price. A round-trip on Air Canada direct might run €550-700, while a Lufthansa connection through Frankfurt could dip under €450. The trade-off is real: non-stop means no layover risk, no luggage re-check, no missed connection anxiety. But for travellers with flexible schedules, connecting flights regularly deliver better value.

Dublin to Montreal flight time

The direct flight from Dublin to Montreal covers approximately 2,965 miles and takes 6 hours 30 minutes (FlightsFrom.com). That puts Dublin about a full business day ahead of Montreal in terms of travel time—granted, minus the jet lag that comes with crossing the Atlantic.

Direct flight duration

Non-stop flights clock in at 6 hours 30 minutes, departing Dublin in the morning or early afternoon to arrive in Montreal the same day (local time). This is the fastest option and avoids the cumulative fatigue that comes with multiple legs.

Typical layover times

Connecting flights via European hubs typically add 4-8 hours depending on the carrier and connection city:

• Lufthansa via Frankfurt: 1-3 hour connection, total 9-11 hours
• British Airways via London: 1-2 hour connection, total 8-10 hours
• KLM via Amsterdam: 1-4 hour connection, total 8-12 hours
• Air France via Paris: 1-3 hour connection, total 8-11 hours

Total travel time estimates

When accounting for airport check-in, security, and potential delays, total door-to-door time breaks down as follows:

• Direct (Air Canada): 8-10 hours total journey
• Connecting via Europe: 12-18 hours total journey

The pattern is clear: non-stop flights deliver a 40-50% reduction in total travel time. For business travellers or those with limited vacation days, that difference can be decisive. For those hunting the cheapest fare, the extra hours might be worth the savings.

Air Canada Dublin to Montréal

Air Canada operates as the primary direct carrier on the Dublin-Montreal route, offering non-stop service that competitors don’t match (FlightsFrom.com operator data). For Irish travellers, this means Air Canada is the default choice if non-stop travel is the priority—and for anyone connecting to onward Canadian destinations (Toronto, Vancouver, Calgary), Air Canada’s hub at Montreal-YUL provides robust feed options.

Air Canada routes and prices

Air Canada’s direct DUB-YUL service runs seasonally with varying frequency. Current pricing isn’t publicly posted at the same low levels as aggregator data, but expect direct fares to start around €450-550 for round-trip economy when booked 2-3 months out. Last-minute bookings can push well above €700.

The advantage of booking Air Canada directly is access to their latitude reward program, complimentary checked bags for certain fare classes, and the ability to manage complex itineraries (including multi-city Canadian adventures) through a single booking.

Alternatives to Air Canada

While Air Canada holds the direct route, several alternatives serve Irish travellers well:

• Aer Lingus + partners: Book Aer Lingus to Dublin, then partner connections via Chicago O’Hare or other US hubs to Montreal
• Lufthansa group: Connect through Frankfurt or Munich on Lufthansa or Swiss, often at competitive pricing
• British Airways: London Heathrow connections offer frequent service and competitive pricing
• Air France/KLM: Paris or Amsterdam connections work well for those willing to trade time for price

Booking Air Canada

To book Air Canada direct DUB-YUL flights:

• Visit Air Canada official website for the most accurate routing options
• Use Google Flights to compare Air Canada fares against connecting alternatives
• Consider booking through a travel agent if you’re combining Air Canada with other North American segments

For travellers with elite status or those booking business class, Air Canada provides superior service and routing flexibility compared to connecting options. Economy passengers should weigh the direct premium against connecting savings.

Ireland to Montreal flights

Dublin Airport (DUB) remains the primary departure point for Irish travellers heading to Montreal, with Montreal–Trudeau International Airport (YUL) serving as the main arrival gateway (Aer Lingus official). Some booking systems reference YMQ as an alternate code for the Montreal area—both point to the same airport, so don’t be confused by the variation.

From Dublin DUB to YUL

Dublin’s Terminal 2 handles most transatlantic departures, including Air Canada and Aer Lingus services to Montreal. American and Canadian citizens can use automated kiosks; other nationalities proceed to the standard immigration queue. Direct security lanes for US pre-clearance apply when connecting through US hubs.

Typical transatlantic check-in requires arriving 3 hours before departure for non-US destinations and 3.5 hours for US connections (due to pre-clearance requirements).

Aggregator sites like Skyscanner Google

Both Skyscanner and Google Flights serve Irish travellers well for Dublin-Montreal routes, though each has strengths:

• Skyscanner: Excellent for “anywhere” date searches and multi-site comparison; shows $209 one-ways and $469 round-trips (Skyscanner)
• Google Flights: Superior calendar view and price tracking; good for identifying fare patterns across months
• Kayak: Sometimes surfaces user-reported deals not captured by aggregators

The cheapest found is €310.03 from Aer Lingus (Aer Lingus), but aggregator sites regularly show lower one-way numbers. Always verify the final price including all fees before booking.

Regional Ireland departures

While Dublin dominates, some Irish travellers consider regional airports for better connections—but Montreal service doesn’t typically extend to Cork, Shannon, or Knock. Your best bet remains DUB as the departure point, with connections via London Heathrow (British Airways), Amsterdam (KLM), or Frankfurt (Lufthansa) adding minimal detour if Dublin fares spike.

What this means: for anyone outside Dublin, factor in the cost of getting to DUB and the time involved. A €50 Ryanair connection to Dublin followed by a €300 direct to Montreal still beats a €600 connecting flight from Cork if the timing works.

How to book cheap Dublin to Montreal flights

Follow these steps to maximise your chances of finding the lowest fare on the Dublin-Montreal route.

1. Set your price alert 5 months out. Skyscanner and Google Flights both offer fare tracking. Enter DUB as origin, YUL (or YMQ) as destination, and set alerts for your flexible date range. The research shows booking five months ahead delivers optimal pricing (Skyscanner booking guidance).
2. Check aggregator prices first. Skyscanner shows $209 one-ways; Expedia shows $293. These give you a baseline before visiting airline sites directly.
3. Visit Aer Lingus and Air Canada directly. Direct booking sometimes unlocks lower fares or better flex options not displayed on aggregators. Aer Lingus shows returns from €310.03 (Aer Lingus); compare against Air Canada’s direct routing.
4. Compare total cost including bags. A $209 Skyscanner fare becomes $309+ once you add a checked bag. Aer Lingus returns at €519.52 may include bags that cost extra elsewhere.
5. Be flexible on dates. September offers the cheapest current fares ($211 one-way per Skyscanner). February and May are also strong alternatives (Expedia seasonal data). Midweek departures typically undercut weekend pricing.
6. Consider connecting flights for savings. Lufthansa via Frankfurt, British Airways via London, or KLM via Amsterdam can shave €100-200 off direct pricing. Trade-off: 4-8 extra hours of travel.

The implication: don’t book the first fare you see. The difference between a $209 Skyscanner one-way and a €310 direct Aer Lingus return could be €100 in your pocket—after accounting for bags, the calculus flips.

“Based on our research, that’s the sweet spot for bagging a bargain.”

— Skyscanner (flight comparison platform, on optimal booking windows)

“The cheapest month to fly from DUB to YUL is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets.”

— Expedia (travel booking platform, on seasonal pricing)

For Irish travellers, the Dublin-Montreal route rewards patience and flexibility. The cheapest fare found—€310.03 from Aer Lingus—represents genuine value, but Skyscanner’s $209 one-ways show that the lowest number isn’t always the full picture. Book five months out, target September through May, and always verify total costs before committing.