$104 Cheap flights from Ronald Reagan Washington National to Seattle - Tacoma Intl. (DCA to SEA)

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Find The Best Dates To Fly from Ronald Reagan Washington National to Seattle - Tacoma Intl.

Amazing DCA to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $196 round trip and $104 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Aug 28 - Sat, Aug 31
DCA
Washington
SEA
Seattle
$196 Roundtrip, found 21 hours ago
$196
Roundtrip
found 21 hours ago
Select Frontier Airlines flight, departing Wed, Aug 28 from Washington to Seattle, returning Sat, Aug 31, priced at $196 found 21 hours ago
Wed, Aug 28 - Fri, Aug 30
DCA
Washington
SEA
Seattle
$206 Roundtrip, found 2 days ago
$206
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Aug 28 from Washington to Seattle, returning Fri, Aug 30, priced at $206 found 2 days ago
Wed, Aug 28 - Thu, Sep 5
DCA
Washington
SEA
Seattle
$212 Roundtrip, found 2 days ago
$212
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Aug 28 from Washington to Seattle, returning Thu, Sep 5, priced at $212 found 2 days ago
Mon, Aug 26 - Sat, Aug 31
DCA
Washington
SEA
Seattle
$220 Roundtrip, found 2 days ago
$220
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Aug 26 from Washington to Seattle, returning Sat, Aug 31, priced at $220 found 2 days ago
Mon, Aug 26 - Wed, Sep 11
DCA
Washington
SEA
Seattle
$222 Roundtrip, found 5 days ago
$222
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, Aug 26 from Washington to Seattle, returning Wed, Sep 11, priced at $222 found 5 days ago
Tue, Jun 4 - Thu, Jun 6
DCA
Washington
SEA
Seattle
$228 Roundtrip, found 2 days ago
$228
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, Jun 4 from Washington to Seattle, returning Thu, Jun 6, priced at $228 found 2 days ago
Mon, Aug 26 - Fri, Aug 30
DCA
Washington
SEA
Seattle
$230 Roundtrip, found 2 days ago
$230
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Mon, Aug 26 from Washington to Seattle, returning Fri, Aug 30, priced at $230 found 2 days ago
Sat, Jun 1 - Fri, Jun 7
DCA
Washington
SEA
Seattle
$233 Roundtrip, found 1 day ago
$233
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Jun 1 from Washington to Seattle, returning Fri, Jun 7, priced at $233 found 1 day ago
Thu, May 30 - Fri, Jun 7
DCA
Washington
SEA
Seattle
$237 Roundtrip, found 7 hours ago
$237
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Thu, May 30 from Washington to Seattle, returning Fri, Jun 7, priced at $237 found 7 hours ago
Wed, Aug 21 - Mon, Aug 26
DCA
Washington
SEA
Seattle
$240 Roundtrip, found 1 day ago
$240
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Aug 21 from Washington to Seattle, returning Mon, Aug 26, priced at $240 found 1 day ago

Best Seattle - Tacoma Intl. Flight and Hotel Packages

Seattle - Tacoma Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Level Seattle Downtown - South Lake Union

Level Seattle Downtown - South Lake Union

3.5 out of 5
Save 100% on your flight
per person
Jun 28 - Jul 4
Roundtrip flight included
Washington (IAD) to Seattle (SEA)
Mediterranean Inn

Mediterranean Inn

3 out of 5
per person
Jun 28 - Jul 4
Roundtrip flight included
Washington (IAD) to Seattle (SEA)
Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
per person
Jun 28 - Jul 4
Roundtrip flight included
Washington (IAD) to Seattle (SEA)
Hotel 116, A Coast Hotel Bellevue

Hotel 116, A Coast Hotel Bellevue

3 out of 5
per person
Jun 28 - Jul 4
Roundtrip flight included
Washington (IAD) to Seattle (SEA)
Belltown's Flower Moon

Belltown's Flower Moon

3 out of 5
per person
Jun 20 - Jun 23
Roundtrip non-stop flight included
Washington (WAS) to Seattle (SEA)
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Frequently asked questions

Can I catch a flight from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport right now?
It’s prudent to learn about any quarantine requirements and travel advice reports in place in your destination city. Ensure you check out our Covid-19 Travel Advisor for up-to-date info on catching a flight to SEA.
Are there direct flights from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport?
Wander wisely and get your hands on a direct flight from National Airport to SEA with Alaska Airlines. This carrier is the ideal choice if you’d rather get to Seattle as fast as you can.
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 Sea-Tac Airport, please visit our Customer Service Portal.
How long is the flight from Ronald Reagan Washington National Airport (DCA) to SEA?
If you’re flying from Arlington to Seattle, you can expect the journey to take approximately 7 hours and 27 minutes. If this sounds like more time than you had hoped, why not put it to good use? Read up on your destination, organize some last-minute details and get as much sleep as possible before the adventure begins.
What is the flight distance from Ronald Reagan Washington National Airport (DCA) to SEA?
You’ll have to travel about 2,300 mi from Ronald Reagan Washington National Airport (DCA) to SEA before you can officially kick-start your exciting vacation. Pick out a beverage when the drink cart comes by and watch one or two of your favorite films. You’ll have lots of time!
What airlines fly from National Airport to Sea-Tac Airport?
Many seasoned wanderers choose to take to the skies with Alaska Airlines (AS) from Arlington to Seattle. This reputable air carrier not only offers as many as 60 flights per month, it also has direct services.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Alaska Airlines, Delta or Southwest Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
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.

 

Traveling From
Ronald Reagan Washington National
Traveling To
Seattle - Tacoma Intl.
Shortest Flight Time
5 hours 40 mins
Earliest Departure Time
8:00AM EDT
Latest Departure Time
5:45PM EDT
Lowest Flight Price
$196

Route Info

Flight path for flights from Ronald Reagan National Airport to Seattle-Tacoma International Airport


Origin:
DCA - Ronald Reagan National Airport
Destination:
SEA - Seattle-Tacoma International Airport
Distance:
2,339.00 miles


Airlines & Aircraft Used on DCA to SEA Flight Routes


Airline Carrier
Aircraft
American Airlines
Canadair Regional Jet
United Airlines
Airbus A320-100/200
United Airlines
Boeing 737 all pax models
United Airlines
Boeing 737-800 pax

Discover our best flights from Washington DCA to Seattle SEA. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Washington DCA to Seattle SEA at the right price  

Airfares to Seattle SEA from Washington DCA currently cost between $196 and $240. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Washington DCA to Seattle SEA 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Washington DCA to Seattle SEA on Travelocity starting at $104. Prices and availability subject to change. Additional terms may apply. 

 

Get to Seattle SEA from Washington DCA quicker with direct flights. 

Get to Seattle faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SEA from DCA to take around 5 hour(s) 40 min(s).  

 

Find our cheapest airfares for flights from Washington DCA to Seattle SEA

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SEA from DCA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Washington DCA to Seattle SEA today 

If you’re flexible about when you travel, August is usually the cheapest month to fly from Washington DCA to Seattle SEA. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Seattle SEA from Washington DCA 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SEA from DCA have this option.  

 

Travel with confidence when you book flights to Seattle SEA from Washington DCA with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*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.