Find cheap flights from Portland to Montreal from $258

In the last 3 days, the lowest price for a flight from Portland, Maine to Montreal Pierre Elliott Trudeau Intl Airport was $258 for a one-way ticket and $523 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in Portland and on arrival in Montreal.

Portland and Montreal are both served by 1 main airport. You will leave Portland from Portland and will be arriving at Montreal Pierre Elliott Trudeau Intl.

We unfortunately don’t have that data for this specific route.

oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Portland and Montreal, with Star Alliance being the most commonly used for this route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Montreal.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to Portland with another airline. Booking your flights between Portland and YUL can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.