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Amazing Alaska Airlines IAD to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $237 round trip and $119 one way. Prices and availability subject to change. Additional terms may apply.



FAQs about Alaska Airlines Flights from IAD to SEA

What terminal is Alaska Airlines at Washington, DC (IAD-Washington Dulles Intl.)?

Before you set off from Washington, DC (IAD-Washington Dulles Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Alaska Airlines, it might be a good idea to get in touch with the airline to find out your terminal information. While your boarding pass should have some of the details, there's no guarantee.

Are there Alaska Airlines non-stop flights from IAD to SEA?

You'll be glad to hear you can fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) with Alaska Airlines and avoid stopovers. The less time you spend waiting around in the airport, the more time you'll have for exploring.

How long is an Alaska Airlines flight from IAD to SEA?

Depending on good weather and no delays, your Alaska Airlines flight from IAD to SEA will take about 7 hours. You'll have enough time to order a glass of wine, get some sleep and check your travel schedule before you disembark.

What type of aircraft does Alaska Airlines fly from IAD to SEA?

The Boeing 737-900 and the Boeing 737-800 are the two types of airplane most often flown by Alaska Airlines between IAD and SEA.

How many direct and indirect flights does Alaska Airlines fly from IAD to SEA?

When heading from IAD to SEA, you'll find roughly 2 Alaska Airlines daily flights to choose from.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Seattle, WA (SEA-Seattle - Tacoma Intl.), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday 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.

How far in advance can you book a flight?

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 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.