€211 Cheap Flights Montreal to Seattle (YUL-SEA)

Start packing your bags, because round-trip flights from Montréal–Trudeau to SEA start from €411. That’s based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can rise quickly, so book today to nab the best deal. Prices and availability are subject to change. Additional terms apply.

Each air carrier has its own terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Pierre Elliott Trudeau Intl. Airport (YUL) to Seattle - Tacoma Intl. Airport (SEA) flights, you’ll see a “no change fees” filter for you to select.

The flight distance between YUL (YUL) and Sea-Tac Airport (SEA) is 3,700 kilometres. Listen to your favourite tunes or make a start on the latest bestseller and the trip will zip on by.

Air Canada (AC) will fly you from Montreal Airport to Seattle - Tacoma Intl. Airport (SEA) comfortably and reliably. You can choose from 17 direct flights every month on this route.

Flight prices go up and down like a yo-yo, so it’s no sure thing. While last-minute deals between Montréal–Trudeau and Sea-Tac Airport are of course possible, it also makes sense to keep an eye on prices well before you fly. In fact, some air carriers release their prices up to 12 months before the departure date. Expedia is continuously updating the biggest bargains around, so check back often and be ready to grab your seat when the price dips.