Alaska Airlines Cheap Flights from Seattle to Washington

Find The Best Day To Fly from Seattle to Washington

Amazing Alaska Airlines SEA to IAD Flight Deals

The cheapest flights to Washington Dulles Intl. found within the past 7 days were $258 round trip and one way. Prices and availability subject to change. Additional terms may apply.

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Frequently asked questions

Can I catch a flight from SEA to Dulles Intl. Airport right now?
Make sure you check out our Covid-19 Travel Advisor to learn if there are any present travel advice reports or quarantine requirements in effect in Washington Dulles Intl. Airport (IAD) when flying in from Sea-Tac Airport.
What terminal is Alaska Airlines at Sea-Tac Airport?
You should find out which terminal Alaska Airlines departs from at Sea-Tac Airport when you receive your ticket. The same can be said for information regarding your arrival at Washington Dulles Intl. Airport (IAD). If you can’t locate those details, get in touch with your airline.
Are there Alaska Airlines non-stop flights from SEA to IAD?
Yes, you can go direct from SEA to IAD with Alaska Airlines and avoid time-consuming layovers. The less time you spend in the air, the more time you’ll have for new adventures.
How long is an Alaska Airlines flight from SEA to IAD?
Depending on no delays and good weather, your Alaska Airlines flight from SEA to IAD will take an average of 6 hours and 25 minutes. That means you’ve got time to order a glass of wine, squeeze in a snooze and work on your travel itinerary before you disembark.
What type of aircraft does Alaska Airlines fly from SEA to IAD?
The Boeing 737-900 and the Boeing 737-800 are the types of aircraft typically used by Alaska Airlines between SEA and IAD.
How many direct and indirect flights does Alaska Airlines fly from SEA to IAD?
Each week, you’ll find approximately 9 Alaska Airlines flights that connect Sea-Tac Airport and IAD.
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 Dulles Intl. Airport, please visit our Customer Service Portal.
Which airlines offer COVID-19 measures and exercise social distancing rules?
United Airlines, Delta and American Airlines are just some of the many carriers that employ COVID-19 measures and use social distancing rules on their flights. Some of their strategies are cleaning with disinfectant and providing passenger masks.
What is the best day to buy a plane ticket?
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.
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 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.
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 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.
CarrierFlightDepart SEAArrive IADTue
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Discover our best Alaska Airlines flight from Seattle SEA to Washington IAD 

To find the best deals on flights to Seattle from Washington with Alaska Airlines, just enter your travel dates, filter by Alaska Airlines, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Seattle SEA to Washington IAD with Alaska Airlines 

If you’re planning a round trip, booking return flights with Alaska Airlines is usually the most cost-effective option. With airfares ranging from $258 to $744, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Alaska Airlines flights from Seattle SEA to Washington IAD 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Alaska Airlines flight from Seattle to Washington costs from . Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Washington IAD from  Seattle SEA with Alaska Airlines 

To find a cheap Alaska Airlines flight from Seattle SEA to Washington IAD, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Alaska Airlines flights from Seattle SEA to Washington IAD 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover. 

 

Find nonstop flights from Seattle SEA to Washington IAD with Alaska Airlines 

If you’re keen to be on Washington soil fast, don’t waste time with a stopover—filter your search results to show direct Alaska Airlines flights only. The journey takes around 10 hour(s) 52 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Alaska Airlines flights from Seattle SEA to Washington IAD 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Washington IAD from  Seattle SEA with Alaska Airlines on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Alaska Airlines Airports
Hop on a(n) Alaska Airlines flight today by flying to many destinations out of these domestic and international airports:
Airport Code
Country
Airport Name
Number of Flights
SEAUSASeattle - Tacoma Intl.115
ORDUSAO'Hare Intl.44
LAXUSALos Angeles Intl.24
PDXUSAPortland Intl.23
ANCUSATed Stevens Anchorage Intl.22
SFOUSASan Francisco Intl.21
SANUSASan Diego Intl.18
JNUUSAJuneau Intl.10
SJCUSANorman Y. Mineta San Jose Intl.10
GEGUSASpokane Intl.7

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