$136 Cheap United flights Calgary (YYC) to Washington (IAD)

Finding cheap one-way United Airlines flights from YYC to IAD from $136 on Expedia is a breeze — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly return fares from $201 for your next adventure.**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.

January is one of the cheapest months to jet off to Washington with United Airlines. You could also find excellent prices on one-way and round-trip tickets in February.

To grab affordable flights from YYC to IAD with United Airlines, start your search about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Want another tip? Booking on Sunday can lead to 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 figure out if there’s a direct journey from YYC to IAD with United Airlines or other airlines, select the “Nonstop” filter when looking for flights.

To find the earliest departures from YYC to IAD with United Airlines, sort your results by “Early Morning” and “Morning.” Booking an early flight generally means you’ll experience fewer 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.

United Airlines flights from Calgary Intl. Airport (YYC) to Washington come in to Washington Dulles Intl. Airport (IAD). This is the main gateway here.

Offering a rewarding loyalty program, United Airlines is a favorite of many passengers departing from YYC to IAD. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Typically, you can cancel or modify your flight, although additional fees may apply if you made your booking over 24 hours ago. Need flexible options? Use our “No cancel fee” and “Changes included” filters to find flights that won’t charge extra if you have to alter your plans. To modify your booking, head to “Trips,” select your flight and click on “Manage Booking” for more information.