Dorval or Lachine: where to buy in 2026?

Comparison · Dorval vs Lachine · 2026

The lake and the airport on one side, the canal and Vieux-Lachine on the other: here is how to decide between Dorval and Lachine by budget, commute and profile.

Dorval and Lachine are neighbours along Highway 20 and Lac Saint-Louis, one a West Island city, the other a Montreal borough, and the buyer looking for the affordable west compares them. Dorval is in the southern West Island sector ($820,000 median house in the second quarter of 2026, -2 % year over year, 38 days), with the Dorval station, the airport and Old Dorval; Lachine is in the Lachine-LaSalle sector ($730,000, +1 %, 42 days, a buyer's market above $640,000), with the canal, Vieux-Lachine, the marina and a stock of older homes and duplexes. The choice: the bilingual suburban city with the train in Dorval; the borough with the canal, the character and the price in Lachine.

The price: Dorval or Lachine?

Dorval's sector is $90,000 more expensive in median ($820,000 vs $730,000), but Dorval itself is the affordable part of the southern West Island: its post-war bungalows often sell under $800,000, which brings the two cities closer. Lachine offers the renovated older homes and waterfront properties of Vieux-Lachine above the median, and the modest homes and duplexes of Lachine-Est below; LaSalle, in the same sector, pulls the median up with its riverfront. In five years, Lachine-LaSalle rose more (+26 % vs +13 %). The condo is cheaper in Lachine-LaSalle ($420,000 vs $517,500).

Days on market and choice

Dorval sells in 38 days, Lachine in 42; both sectors are seller's markets under $640,000 in Lachine-LaSalle (then buyer's, with 15.9 months of inventory above, one of the island's heaviest) and under $1.23 million in Dorval. In other words, a $700,000 house sells faster in Dorval than in Lachine, where it falls into the slow range. The southern West Island offers 325 houses active, Lachine-LaSalle 120.

Southern West Island (Dorval, Pointe-Claire, Beaconsfield, Kirkland): balance of power by price range

Lachine, LaSalle: balance of power by price range

The living environment

Dorval has Lac Saint-Louis and Old Dorval, Pine Beach park, the Dorval station (exo and VIA, future REM), the airport (jobs and noise), Dorval Village, and a bilingual population; the Lakeshore General Hospital is in Pointe-Claire. Lachine has the Lachine canal and its bike path to the Old Port, Vieux-Lachine with the marina, René-Lévesque park and the museum, the Père-Marquette promenade on the lake, Collège Sainte-Anne, the Canal station and buses to the Angrignon metro; the LaSalle hospital is next door. Both are lived by car with the 20; Dorval has the train, Lachine the bike ride to the centre.

The verdict by profile

• Daily train, VIA, the airport for work: Dorval.
• Bike to downtown, canal, character: Vieux-Lachine.
• Family bungalow under $800,000, quiet streets, bilingual: central Dorval.
• First purchase under $650,000, duplex or small house: Lachine-Est, in the range where the seller still leads.
• Waterfront: the lake in Dorval (Old Dorval) or in Lachine (Père-Marquette promenade), at comparable prices; the certificate of location is read in both cases.
• Large home over $700,000 to resell one day: Dorval, where that range stays with the seller; in Lachine, it negotiates.

The full guides: living in Dorval and living in Lachine; the monthly picture is on the island's August 2026 report and every borough's prices on house prices by borough and condo prices by borough.

Frequently asked questions

Dorval or Lachine: which is cheaper?

Lachine, in the Lachine-LaSalle sector at a $730,000 median against $820,000 for the southern West Island in the second quarter of 2026; Dorval itself often sells under $800,000.

Which has the train?

Dorval, with the Dorval station (exo, VIA, future REM); Lachine has the Canal station and buses to Angrignon.

Where does the high end sell best?

In Dorval: the sector stays with the seller up to $1.23 million; in Lachine-LaSalle, above $640,000, inventory is 15.9 months.

Also available in French: version française de ce guide.

Published September 7, 2026 by the Loaa & Manseur team, the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 according to the official RE/MAX ranking. Tell us about your project.