SEA to WAS (Seattle to Washington) Flights

Last Minute Flights from SEA to WAS

Price found within the past 7 days for the specified period. Click for updated prices.

Cheapest SEA to WAS Flights

Price found within the past 7 days for the specified period. Click for updated prices.

OriginDestinationTravel DatesFlights From*
SEAChantillyApril 30 to May 5$199
SEAWashingtonApril 25 to May 5$199
SEAChantillyApril 30 to May 5$199
SEAWashingtonApril 22 to April 27$215
SEAWashingtonApril 17 to April 25$219
*Prices include taxes and fees
SEA to WAS Flight Details
Origin airport
Seattle - Tacoma Intl.
Origin airport IATA code
SEA
Destination airport
Washington Dulles Intl.
Destination airport IATA code
IAD
Distance
2299 mi

Frequently asked questions

How many flights are there from SEA to Washington, DC (WAS-All Airports)?
Around 125 every day. If you're in a big rush to get to Maryland, see if you can pick up an epic last-minute deal from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Washington, DC (WAS-All Airports) and then secure it straight away!
How many morning flights are there from SEA to Washington, DC (WAS-All Airports)?
Early birds, you'll be glad to know that there are 346 morning flights from SEA to Washington, DC (WAS-All Airports) each week.

  • If you're eager to jet off with Alaska Airlines (AS), it offers 102 weekly flights that leave before noon. The 6:00AM flight is the first of the day.
  • 12:35AM is the earliest time you can fly from SEA to Washington, DC (WAS-All Airports) with Delta Air Lines (DL). This airline has 96 early flights every week.
  • Leave before noon with American Airlines (AA) and you'll have around 54 flights each week to pick from. 12:59AM is the first of the day from SEA to Washington, DC (WAS-All Airports).

How many afternoon flights are there from SEA to Washington, DC (WAS-All Airports)?
With 532 afternoon and evening flights from SEA to Washington, DC (WAS-All Airports) each week, you can forget about racing to the check-in counter at the crack of dawn.

  • Alaska Airlines (AS) has 230 weekly flights that take off after midday. The earliest departure is 12:12PM.
  • If you'd like to grab a seat with Delta Air Lines (DL), choose one of the 136 weekly afternoon and evening flights that depart from 5:22AM onward.
  • Otherwise, clock up some air miles with United Airlines (UA). This airline has 78 flights per week after midday, with the earliest departure at 12:30PM.

What is the earliest departure time out of SeaTac to Maryland?
Fly out of SEA at 12:35AM and come in for landing at Washington, DC (WAS-All Airports) at 10:59PM. This is the earliest departure you can book on this route.
What is the latest departure time out of SeaTac to Maryland?
Secure a seat on the 11:59PM flight from SEA, arriving at 10:18PM at Washington, DC (WAS-All Airports), and give yourself time to carry out those last-minute vacation preparations. This is the latest flight you can get on this route.
What is the average price from SeaTac to Maryland?
On average, the best price for round-trip flights from SEA to Washington, DC (WAS-All Airports) is $199. Score your own hot deal by securing your tickets early. This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Seattle to Washington Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from Seattle to Washington to attend your cousin’s wedding, to pitch a business idea to your boss, or simply treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find our cheapest flights from SEA to WAS, we’ve got you covered here at Flights.com.

We present you with some of the most affordable deals on airfare, so stop that Google flights search. We want you to spend less on your flight from Seattle to Washington, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.

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