$75 Flights from Seattle / Tacoma International (SEA) to Washington Ronald Reagan (DCA)

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Flight deals from Seattle / Tacoma International Airport to Washington Ronald Reagan Airport

Looking for a cheap last-minute deal or the best round-trip flight from Seattle / Tacoma International Airport to Washington Ronald Reagan Airport? If you want to travel next month, round-trip fares start from $180. Find the lowest prices on one-way and round-trip tickets right here.

Washington, D.C..$75 per passenger.Departing Fri, Mar 6.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Fri, Mar 6, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $75, select.

Washington, D.C..$94 per passenger.Departing Mon, Feb 9.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Mon, Feb 9, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $94, select.

Washington, D.C..$96 per passenger.Departing Thu, Apr 9.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Thu, Apr 9, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $96, select.

Washington, D.C..$99 per passenger.Departing Fri, Mar 6.One-way flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departing from Seattle / Tacoma International on Fri, Mar 6, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $99, select.

Washington, D.C..$113 per passenger.Departing Thu, Feb 26.One-way flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departing from Seattle / Tacoma International on Thu, Feb 26, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $113, select.

Washington, D.C..$128 per passenger.Departing Wed, May 6.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Wed, May 6, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $128, select.

Washington, D.C..$138 per passenger.Departing Tue, Apr 28.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Tue, Apr 28, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $138, select.

Washington, D.C..$138 per passenger.Departing Wed, May 6.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Wed, May 6, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $138, select.

Washington, D.C..$148 per passenger.Departing Fri, Jan 30.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Seattle / Tacoma International on Fri, Jan 30, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $148, select.

Washington, D.C..$156 per passenger.Departing Mon, Jun 15.One-way flight with jetBlue.Outbound indirect flight with jetBlue, departing from Seattle / Tacoma International on Mon, Jun 15, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $156, select.

Washington, D.C..$170 per passenger.Departing Fri, Sep 11.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Seattle / Tacoma International on Fri, Sep 11, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $170, select.

Washington, D.C..$181 per passenger.Departing Fri, Sep 11.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departing from Seattle / Tacoma International on Fri, Sep 11, arriving in Washington Ronald Reagan.Price includes taxes and charges.From $181, select.

Find the cheapest month to fly from Seattle / Tacoma International to Washington Ronald Reagan

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the Seattle / Tacoma International Airport to Washington Ronald Reagan Airport flight prices forecast over the next 12 months.

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Cheapest month:March

Most expensive month:December

Direct flights from Seattle / Tacoma International to Washington Ronald Reagan

Seattle / Tacoma International to Washington Ronald Reagan: Alternative routes

Compare routes from Seattle / Tacoma International to Washington, D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Ronald Reagan.

Seattle to Washington, D.C.: Flight information

The things to know before you go.

Cheapest flight found	$75
Cheapest month to fly	March
Average flight time	5 hrs, 11 mins
Most popular airline	Alaska Airlines
Average flights per week	73

Finding cheap flights from Seattle / Tacoma International to Washington Ronald Reagan: Frequently asked questions

How much are round-trip flights from Seattle / Tacoma International to Washington Ronald Reagan?

The best price we found for a round-trip flight from Seattle / Tacoma International to Washington Ronald Reagan is $176. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seattle / Tacoma International to Washington Ronald Reagan?

5 hours and 11 minutes is the average flight time from Seattle / Tacoma International to Washington Ronald Reagan.

Which airlines fly direct from Seattle / Tacoma International to Washington Ronald Reagan?

Alaska Airlines, Air Tahiti Nui and Hawaiian Airlines fly direct from Seattle / Tacoma International to Washington Ronald Reagan.

How many flights are there a week from Seattle / Tacoma International to Washington Ronald Reagan?

There are 73 flights per week flying from Seattle / Tacoma International to Washington Ronald Reagan, as of January 2026.

When is the cheapest time to fly from Seattle / Tacoma International to Washington Ronald Reagan?

The cheapest month to fly from Seattle / Tacoma International to Washington Ronald Reagan is usually March.

Which upcoming date is cheapest to fly from Seattle / Tacoma International Airport to Washington Ronald Reagan Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Washington Ronald Reagan Airport on Friday, March 6, 2026.

Can I get a direct flight from Seattle / Tacoma International Airport to Washington Ronald Reagan Airport?

Yes – the average flight time is 5 hours and 11 minutes.

How can I find the best flight deal to Washington Ronald Reagan?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Ronald Reagan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Washington, D.C.?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Washington, D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Seattle / Tacoma International Airport to Washington Ronald Reagan?

Currently, Hawaiian Airlines offers the cheapest flight tickets to Washington Ronald Reagan.

Flying from Seattle-Tacoma International Airport (SEA) to Ronald Reagan National Airport (DCA): what you need to know

Book a direct flight from Seattle-Tacoma International Airport to Ronald Reagan National Airport and you'll be in the air for an average of 5 hours 5 minutes.
Washington DC is three hours ahead of Seattle and observes the UTC-4 timezone.
You can choose from 14 weekly Seattle-Tacoma International Airport to Ronald Reagan National Airport flights. The 08:32 departure with Alaska Airlines is the earliest flight available. Alaska Airlines operates the last service of the day at 14:05.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to catch your SEA to DCA flight.
During popular months like July, you'll want to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead of international flights whenever you're traveling during a high season in general.
Alaska Airlines has direct flights from Seattle-Tacoma International Airport to Ronald Reagan National Airport. Book with this popular airline, then get ready to discover the sights in Washington DC — and maybe even more of United States if you have time.
The airline with the highest passenger demand on this route is Alaska Airlines.
With a reliable 85.0% of services arriving on schedule, Alaska Airlines has the best on-time record for SEA to DCA flights.
We make it a breeze to book a flight with a stopover. To see your options for tickets from Seattle-Tacoma International Airport to Ronald Reagan National Airport, uncheck 'Direct flights only.' Then, choose a flight with a stop long enough to explore the city of your choice. Stopovers between SEA and DCA include:
- Minneapolis-St. Paul International Airport
- Detroit Metropolitan Wayne County Airport
- Nashville International Airport

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Ronald Reagan National Airport (DCA)

$75 is the lowest price for a one-way Seattle-Tacoma International Airport to Ronald Reagan National Airport flight. A return flight starts from $176. These fares can change based on demand and availability.
To score cheap tickets from SEA to DCA, book your journey seven months ahead of your planned departure.
The cheapest month for flights from Seattle-Tacoma International Airport to Ronald Reagan National Airport is June. Use the 'Whole month' tool to see the lowest prices if you have flexible dates.
You won't have to check every day to see if fares have dropped when you set up a Price Alert. We'll let you know as soon as there's a change in price on cheap flights from SEA to DCA.
Select your preferred departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Seattle-Tacoma International Airport to Ronald Reagan National Airport.

Handy information about Seattle-Tacoma International Airport (SEA)

81.27% of flights leaving Seattle-Tacoma International Airport land at their destination on time. With its dependable on-time performance, you're unlikely to face delays when flying out of SEA.
Central Seattle to Seattle-Tacoma International Airport is approximately 14 miles. Depending on traffic, it'll take about 20 minutes to get there if you're ride-sharing, catching a cab or driving.
You can expect a journey time of around 55 minutes when using public transport.
Looking for a convenient hotel close to SEA? If you're catching an early flight from Seattle-Tacoma International Airport to Ronald Reagan National Airport, these accommodation options will put you moments from your check-in counter:

Arriving at Ronald Reagan National Airport (DCA)

If you're getting in on a late Seattle-Tacoma International Airport to Ronald Reagan National Airport flight, few things top the convenience of staying close to the terminal. Pick up your bags from the carousel and then be showered and snoozing not long after at one of these options near DCA:
Grab a Ronald Reagan National Airport rental car and discover Washington DC and beyond with your own set of wheels. Thrifty, Sixt and Dollar are well-known companies you can book with here.
To lock in the lowest price, reserve your ride from Ronald Reagan National Airport around four weeks before you travel.

Getting from Ronald Reagan National Airport (DCA) to central Washington DC

The address for DCA is 1 Aviation Circle.
Ronald Reagan National Airport to the center of Washington DC has a drive time of about 15 minutes. It's approximately 5 miles away.
If you're traveling on public transport, expect a journey of about 45 minutes.

When to fly to Ronald Reagan National Airport (DCA)

It's time to choose your dates for your flight from Seattle-Tacoma International Airport to Ronald Reagan National Airport. February is the busiest month to visit Washington DC. If you're after a more laid-back vibe, go in May.
Book your flight from Seattle-Tacoma International Airport to Ronald Reagan National Airport for July if you want to go to Washington DC during its warmest month. Expect temperatures of between 66ºF and 91ºF.
If you want to travel in cooler conditions, search for a cheap ticket from SEA to DCA in January. Average temperatures are between 21ºF and 50ºF then.

Explore more of United States

New York is just one of the many cities in United States waiting to be explored once you've seen the sights of Washington DC. Around 200 miles away to the north-east, popular attractions include Statue of Liberty, Central Park and Empire State Building.
If you're eager to discover another well-known destination in United States, consider Philadelphia, about 120 miles north-east of Washington DC. Liberty Bell, Independence Hall and Philadelphia Museum of Art are key highlights.