Cheap Flight Tickets from Washington (DCA) to Seattle (SEA), Starting at $355

Good to Know: Cheapest and Fastest DCA - SEA Flights

Useful information for finding best airline tickets from Ronald Reagan Washington National to Seattle Tacoma International on your next trip.

Cheapest Round Trip Flight

$401

WN Southwest Airlines • 3 stops • 24h 10m

Aug 13 – Aug 13

The cheapest round trip flight from Washington to Seattle (DCA-SEA-DCA) is currently $401

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Cheapest One way Flight

$548

AA American Airlines • 1 stop • 14h 18m

Jun 25

The cheapest one way flight from Washington to Seattle (DCA-SEA) is currently $548

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Cheapest Direct Flight

$355

DL Delta Airlines • nonstop • 10h 6m

Aug 11

The cheapest nonstop flight from Washington to Seattle (DCA-SEA) is currently $355

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Fastest Flight

9h 5m

The fastest nonstop flight from Washington to Seattle (DCA-SEA) takes 9h 5m

Top Airlines Flying from Washington to Seattle

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

WestJet Airlines

WestJet Airlines

Hawaiian Airlines-HA

Hawaiian Airlines

Latest Flight Deals from Washington (DCA) to Seattle (SEA)

Compare and book low fare round-trip air tickets from Washington to Seattle. Ideal for travelers with confirmed return itineraries.

Aug 13 - Aug 13, Economy
WN
Washington → Seattle
24h 10m
6:55 AM - 6:45 PM • 3 stops
WN
Washington → Seattle
17h
11:00 PM - 12:20 PM • 1 stop
$401
Southwest Airlines
Aug 13 - Aug 13, Economy
UA
Washington → Seattle
15h 11m
12:57 PM - 7:08 PM • 1 stop
UA
Washington → Seattle
14h 15m
11:59 PM - 11:54 AM • 1 stop
$580
United Airlines
Aug 13 - Aug 13, Economy
AS
Washington → Seattle
15h 46m
9:59 AM - 4:45 PM • 1 stop
AS
Washington → Seattle
35h 35m
8:25 PM - 9:00 PM • 1 stop
$694
Alaska Airlines
Aug 13 - Aug 13, Economy
DL
Washington → Seattle
10h 6m
4:35 PM - 7:41 PM • nonstop
DL
Washington → Seattle
13h 49m
10:40 PM - 10:09 AM • 1 stop
$711
Delta Airlines
Aug 13 - Aug 13, Economy
AS
Washington → Seattle
9h 18m
8:00 AM - 10:58 AM • nonstop
AS
Washington → Seattle
8h 33m
1:46 PM - 9:59 PM • nonstop
$726
Alaska Airlines
Aug 13 - Aug 13, Economy
AA
Washington → Seattle
14h 18m
5:00 AM - 10:58 AM • 1 stop
AA
Washington → Seattle
11h 44m
11:56 PM - 10:00 AM • 1 stop
$738
American Airlines

Fly from Washington to Seattle with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Washington to Seattle? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Washington to Seattle Flights

What are the airports in Washington?
IAD,BWI,DCA
What’s the most popular airline flying from DCA to SEA?
The most popular airline flying from Washington to Seattle are
Can I fly from DCA to SEA non-stop?
Yes, you can fly DCA to SEA non-stop on
Which airlines fly nonstop between Washington and Seattle?
The non-stop flights between Washington and Seattle are .
What’s the earliest departure time from DCA to SEA Airport?
The earliest flight leaves DCA at 5:00 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Washington to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DCA to SEA?
Read the fare rules of the Washington to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Washington and Seattle?
operate flights between Washington and Seattle
How long does a flight from Washington to Seattle take?
It takes approximately 5 hour to fly non-stop from DCA to SEA, which is 2328.47 miles by air.
Which airlines provide the cheapest flights from Washington (DCA) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from DCA were found on AS : USD 932
Do I need a passport to fly between DCA and SEA?
No
What’s the latest departure time from DCA to SEA ?
The last flight leaves DCA at 8:000 pm

Essential Information for Booking Flights from Washington (DCA) - AI Insights

What's the cheapest airline from dca to sea?
You can find affordable Business class flights from Ronald Reagan Washington National Airport (DCA) to Seattle Tacoma International Airport (SEA) on Southwest Airlines. The airline offers a range of services, including priority check-in, lounge access, and flatbed seats. Booking in advance is recommended, as it may lead to Low Fares or Savings. You can search for cheap flights on web travel platforms to find the best deals.
What's the popular airline to fly from dca to sea?
Southwest Airlines offers a convenient option for flying from Ronald Reagan Washington National Airport (DCA) to Seattle Tacoma International Airport (SEA). As a business class passenger, you can enjoy priority check-in, lounge access, and flatbed seats. Booking in advance is recommended, as Southwest Airlines often offers competitive airfares when booked 54 days prior to departure. With this one-way trip, you'll have ample time to explore Seattle without the hassle of multiple stops.
What's the cheapest day of the week to fly from dca to sea?
The cheapest day to fly from Ronald Reagan Washington National Airport (DCA) to Seattle Tacoma International Airport (SEA) is Saturday. Flying on Saturdays can result in lower fares, making it a budget-friendly option for your one-way trip. You can find affordable flights with this travel schedule.
What's the cheapest month to fly from dca to sea?
The cheapest month to fly from DCA to SEA is December. Flying during this time can help you save on airfare costs. You can find budget-friendly flights from Ronald Reagan Washington National Airport (DCA) to Seattle Tacoma International Airport (SEA) with a business class ticket for your group of four passengers.
Which airline/airlines fly from dca to sea?
Frontier Airlines (F9) and Alaska Airlines (AS) offer direct flights from Ronald Reagan Washington National Airport (DCA) to Seattle Tacoma International Airport (SEA). For a business class ticket, consider booking in advance as 54 days prior to your trip. You can find the best airfares on websites like fareleaders.com for budget-friendly flights.
What is the cheapest airline to fly from Ronald Reagan Washington National Airport (DCA) to Seattle Tacoma International Airport (SEA)?
Southwest Airlines (WN)
How far in advance can I book my one-way business class ticket?
You can book your one-way business class ticket up to 54 days in advance.
Are there any discounts or promotions available for flights to Milwaukee on cheapflights?
No, we do not offer flights to Milwaukee on cheapflights.
Can I purchase busco agency services online?
Yes, you can purchase busco agency services online.
What is the best way to find affordable airfare deals on web agencies like agencia?
You can find affordable airfare deals by visiting our website and using our search engine.

Washington (DCA) to Seattle (SEA): Airport Information

Origin Airport Ronald Reagan Washington National , Washington, US
Destination Airport Seattle Tacoma International , Seattle, US
Distance 2328 miles

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