Cheap Flights from Seattle to Washington Ronald Reagan from $317

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Flight deals from Seattle to Washington Ronald Reagan Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Washington Ronald Reagan Airport? If you want to travel next month, return fares start from $317. Find the lowest prices on one-way and return tickets right here.

Washington D.C..$317 per passenger.Departing Tue, 14 Apr, returning Wed, 15 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Tue, 14 Apr, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Wed, 15 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $317, select.

Washington D.C..$341 per passenger.Departing Tue, 28 Apr, returning Tue, 5 May.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Tue, 28 Apr, arriving in Washington Ronald Reagan.Inbound direct flight with Delta departs from Washington Ronald Reagan on Tue, 5 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $341, select.

Washington D.C..$368 per passenger.Departing Fri, 1 May, returning Wed, 6 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Fri, 1 May, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Wed, 6 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $368, select.

Washington D.C..$374 per passenger.Departing Wed, 3 Jun, returning Mon, 8 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Seattle / Tacoma International on Wed, 3 Jun, arriving in Washington Ronald Reagan.Inbound indirect flight with Delta, departs from Washington Ronald Reagan on Mon, 8 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $374, select.

Washington D.C..$400 per passenger.Departing Tue, 14 Apr, returning Tue, 21 Apr.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Tue, 14 Apr, arriving in Washington Ronald Reagan.Inbound direct flight with Delta departs from Washington Ronald Reagan on Tue, 21 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $400, select.

Washington D.C..$437 per passenger.Departing Sun, 31 May, returning Sun, 7 Jun.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Sun, 31 May, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Sun, 7 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $437, select.

Washington D.C..$538 per passenger.Departing Mon, 30 Mar, returning Fri, 3 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Mon, 30 Mar, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Fri, 3 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $538, select.

Washington D.C..$671 per passenger.Departing Fri, 1 May, returning Sun, 3 May.Return flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Seattle / Tacoma International on Fri, 1 May, arriving in Washington Ronald Reagan.Inbound direct flight with Alaska Airlines departs from Washington Ronald Reagan on Sun, 3 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $671, select.

Washington D.C..$678 per passenger.Departing Mon, 1 Jun, returning Wed, 1 Jul.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Mon, 1 Jun, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Wed, 1 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $678, select.

Washington D.C..$702 per passenger.Departing Thu, 28 May, returning Tue, 9 Jun.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Thu, 28 May, arriving in Washington Ronald Reagan.Inbound direct flight with Delta departs from Washington Ronald Reagan on Tue, 9 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $702, select.

Washington D.C..$712 per passenger.Departing Thu, 3 Sep, returning Mon, 7 Sep.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 3 Sep, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Mon, 7 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $712, select.

Washington D.C..$712 per passenger.Departing Thu, 23 Jul, returning Mon, 19 Oct.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 23 Jul, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Mon, 19 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $712, select.

Washington D.C..$713 per passenger.Departing Thu, 6 Aug, returning Sat, 8 Aug.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 6 Aug, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Sat, 8 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $713, select.

Washington D.C..$713 per passenger.Departing Thu, 2 Jul, returning Tue, 14 Jul.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Thu, 2 Jul, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Tue, 14 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $713, select.

Washington D.C..$730 per passenger.Departing Thu, 4 Jun, returning Sat, 6 Jun.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Thu, 4 Jun, arriving in Washington Ronald Reagan.Inbound direct flight with Delta departs from Washington Ronald Reagan on Sat, 6 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $730, select.

Washington D.C..$746 per passenger.Departing Fri, 31 Jul, returning Mon, 3 Aug.Return flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Fri, 31 Jul, arriving in Washington Ronald Reagan.Inbound indirect flight with United, departs from Washington Ronald Reagan on Mon, 3 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $746, select.

Find the cheapest month to fly from Seattle to Washington Ronald Reagan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Washington Ronald Reagan flights are currently cheapest in April.

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Direct flights from Seattle to Washington Ronald Reagan

Seattle to Washington Ronald Reagan: Alternative routes

Compare routes from Seattle 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	$317
Cheapest month to fly	April
Average flight time	5 hrs, 12 mins
Most popular airline	Alaska Airlines
Average flights per week	48

Check out these Washington D.C. hotels

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The Fairmont Washington DC

1.72 km from city centre

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Riggs Washington DC

0.83 km from city centre

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Conrad Washington DC

0.62 km from city centre

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The Fairmont Washington DC

1.72 km from city centre

$885

Per night

Riggs Washington DC

0.83 km from city centre

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Conrad Washington DC

0.62 km from city centre

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

How much are return flights from Seattle to Washington Ronald Reagan?

The best price we found for a return flight from Seattle to Washington Ronald Reagan is $317. 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 to Washington Ronald Reagan?

5 hours and 12 minutes is the average flight time from Seattle to Washington Ronald Reagan.

Which airlines fly direct from Seattle to Washington Ronald Reagan?

Alaska Airlines, Delta and Korean Air fly direct from Seattle to Washington Ronald Reagan.

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

As of March 2026, there are 48 flights per week flying from Seattle to Washington Ronald Reagan.

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

The cheapest month to fly from Seattle to Washington Ronald Reagan is usually April.

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

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Washington Ronald Reagan Airport on Tuesday, 14 April 2026.

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

Yes – the average flight time is 5 hours and 12 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.

Flying from Seattle to Ronald Reagan Washington National Airport (DCA): What you need to know

Your next big escape starts at Seattle's main airport, Seattle-Tacoma International Airport (SEA). Check out your options for booking a flight from Seattle to Ronald Reagan Washington National Airport (DCA) leaving from this terminal.
Around 5 hours 10 minutes is how long you'll be travelling on a direct Seattle to Ronald Reagan Washington National Airport flight.
Ronald Reagan Washington National Airport is located in Washington DC. The city follows the UTC-5 timezone and is three hours ahead of Seattle.
Seattle-Tacoma International Airport (SEA) to Ronald Reagan Washington National Airport (DCA) is the most popular route. There are 19 direct weekly flights to choose from. If you have things to do before heading off, hop on the last flight with Alaska Airlines at 2:08pm. Choose the first SEA to DCA departure operated by Delta Air Lines at 7:23am if you'd rather not wait around.
Leave enough time to get on your flight from Seattle to DCA. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.
Peak months like July or high seasons such as Thanksgiving and Christmas will mean bigger lines at check-in and security. Play it safe and head to the terminal even earlier. Arriving two hours before domestic flights and up four hours ahead of an international flight is a wise idea.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) offers an easy route to your destination. Nonstop flights from Seattle to Ronald Reagan Washington National Airport (DCA) operate out of this terminal.
When departing from SEA, you can take a direct flight from Seattle to Ronald Reagan Washington National Airport with Alaska Airlines.
Alaska Airlines is the airline most travellers choose for flights from SEA to DCA.
Among carriers on this route, Delta has the highest rate of on-time arrivals.
Located around 23 kilometres from central Seattle, SEA can be reached in about 25 minutes by car (depending on traffic). The journey by public transport takes roughly 35 minutes.
In search of a comfortable hotel close to Seattle-Tacoma International Airport? If you've booked an early flight from Seattle to Ronald Reagan Washington National Airport, these accommodation options will have you sleeping just around the corner from the terminal:
Seattle-Tacoma International Airport has a strong on-time record, so flight disruptions are less likely. Departures from SEA land at their destination as scheduled 80% of the time.

Seattle Paine Field International Airport (PAE)

You can get to PAE from the centre of Seattle in approximately 40 minutes by car (depending on traffic conditions). The journey on public transport takes roughly 1 hour 30 minutes to travel the 40 kilometres or so.
Kick off your holiday early with an additional night away from home. Before catching your Seattle to DCA flight, stay in one of these hotels close to Seattle Paine Field International Airport:
Flights from Seattle Paine Field International Airport have a proven record for punctuality, with 80% of them landing as expected.

About Ronald Reagan Washington National Airport (DCA)

If you have a late flight from Seattle to Ronald Reagan Washington National Airport, few things beat the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and snoozing soon after at one of these options near DCA:
To get the lowest price, reserve your vehicle around four weeks ahead of your Seattle to Ronald Reagan Washington National Airport flight.
You'll find DCA at 1 Aviation Circle.

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

Central Washington DC is roughly 6 kilometres from Ronald Reagan Washington National Airport. Journey times by car hire or taxi will vary based on traffic conditions and time of day, so do some research ahead of your trip.
When travelling on public transport, expect a journey time of roughly 25 minutes.

How to find the cheapest flights from Seattle to Ronald Reagan Washington National Airport (DCA)

The lowest price we've found for a one-way ticket from Seattle to Ronald Reagan Washington National Airport is $147. For a return flight on this route, the best price is $317. Depending on the availability and when you book, these fares could change.
To snap up cheap flights from Seattle to DCA, book your ticket one month before your departure date.
June is when you're most likely to land a fantastic deal on a Seattle to Ronald Reagan Washington National Airport ticket. If you need to travel during a different time of year, the 'Whole month' tool will show you the lowest prices for each month.
Locking in a cheap plane ticket from Seattle to DCA is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as there's a price drop.
Filters make it easier to snap up a deal on your flight from Seattle to Ronald Reagan Washington National Airport. Choose the departure times, carriers and stops that line up with your plans. Then sort the results by 'Cheapest' to find the lowest price right away.

The best time to fly from Seattle to Ronald Reagan Washington National Airport (DCA)

December is the quietest month for flights from Seattle to Ronald Reagan Washington National Airport (DCA), while July is the most popular. Choose the best time to visit Washington DC based on whether you want a laid-back vibe or a more bustling atmosphere.
When booking your Seattle to DCA plane ticket, consider the weather you're most comfortable in. July is the warmest month in Washington DC, with temperatures ranging from 19ºC to 33ºC.
Look for cheap tickets from Seattle to Ronald Reagan Washington National Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -6ºC and 10ºC.

More about Washington DC

Start your Washington DC trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Seattle to Ronald Reagan Washington National Airport, check out our selection of hotels including:
There are so many things to do and see in this city, it can be difficult to know where to begin. Lincoln Memorial, The White House and Smithsonian National Museum of Natural History are highlights which should feature on any good Washington DC itinerary.

Explore more of the United States

You've seen Washington DC, now it's time to discover other parts of the United States. Journey around 209 kilometres northeast to Philadelphia to check off its top attractions. From Independence Hall to Liberty Bell and Philadelphia Museum of Art, you'll have a full itinerary ahead.
Around 241 kilometres southeast of Washington DC, Virginia Beach is another favourite stop in the United States. Start your sightseeing at Virginia Beach Boardwalk, Resort Beach and Neptune's Park.