$178 Cheap Porter Airlines flights Montreal (YUL) to Washington (IAD)

Scoring cheap one-way Porter Airlines flights from YUL to IAD from $178 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $268 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for round-trip or one-way flights to Washington in January or February. You could find lower fares with Porter Airlines during these off-peak months.

To find cheap flights from YUL to IAD with Porter Airlines, begin your search about one month before your planned departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another good tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To find out if there’s a direct journey from YUL to IAD with Porter Airlines or other carriers, use our “Nonstop” filter when browsing for tickets.

Filter your results by “Early Morning” and “Morning” to browse the earliest flights from YUL to IAD. Setting off early means you’re 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Porter Airlines flights from Pierre Elliott Trudeau Intl. Airport (YUL) to Washington come in to land at Washington Dulles Intl. Airport (IAD). This is the main gateway to this destination.

You’re permitted 1 cabin bag weighing up to 19 lb and dimensions less than 16 inches x 6 inches x 13 inches. You can also bring a small personal item onboard when traveling standard economy from YUL to IAD with Porter Airlines. Luggage allowances may differ by fare type and cabin class, so check Porter Airlines’s website to avoid any extra fees at the airport.

Journey from YUL to IAD with Porter Airlines and you’ll enjoy a range of benefits including an excellent in-flight experience. When booking through Expedia as a VIPorter and One Key™ member, you could also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making a booking, but your airline may add a charge after that. For further information about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to change your itinerary without being charged, tick the “Changes included” or “No cancel fee” filter when organizing your trip.