Vuelos de Alaska Airlines de Seattle (SEA) a Washington (IAD) desde

For info on any present IAD quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Look before you arrange your flight, so you don’t get caught up en route.

As soon as you’re issued your boarding pass for your Alaska Airlines flight from Seattle - Tacoma Intl. Airport (SEA) to IAD, check if the terminal details are on it. If not, contact your carrier. They’ll be able to tell you exactly where you’ll be flying in and out of.

With Alaska Airlines offering nonstop services between Sea-Tac Airport and Dulles Intl. Airport, you can’t go wrong. Say goodbye to the stress, hassle and baggage hiccups often associated with layovers, and secure your seat today.

Get some in-flight shut-eye and start your getaway raring to go. You’ll have enough time to do so when traveling with Alaska Airlines between SEA and IAD, with the flight taking on average 6 hours and 5 minutes.

Organizing a flight between SEA and Dulles Intl. Airport with Alaska Airlines? On this route, you’ll probably be stepping aboard the Boeing 737-800 or the Boeing 737 MAX 9 type aircraft.

Alaska Airlines makes getting from SEA to Dulles Intl. Airport straightforward and hassle-free. Currently, it offers no fewer than 10 flights each week on this popular route.

For more info about changing your flight to Washington Dulles Intl. Airport (IAD), please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.