Can I fly direct from Seattle to Washington, D.C.?

Historically, direct flights from Seattle to Washington, D.C. have been available, making up about 31.8% of all flights on this route. For flights that include stopovers, travelers typically experience one stop. This indicates that while direct options exist, many routes involve at least one connection.

How long does it take to fly from Seattle to Washington, D.C.?

The typical direct flight from Seattle to Washington, D.C. has a median duration of 5 hours and 6 minutes. For flights with one stop, the median travel time increases to 9 hours. The distance covered on this route is approximately 3702 kilometers. Travelers should account for the additional time if their itinerary includes a layover.

How often do cheap flights from Seattle to Washington, D.C. come up?

Historically, cheap flights from Seattle to Washington, D.C. come up frequently. This route is classified as offering frequent deals across the trailing 30 days. Travelers looking for budget-friendly options on this route often find opportunities to save.

Flights From Seattle

To Washington, D.C.

Cheap Flights from Seattle to Washington, D.C.

Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Seattle

RatePunk searches hundreds of travel sites at once for deals on flights to Washington, D.C.

Prices updated 3 days ago

444 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Aug 9, 2026.)

Today’s best flight deals from Seattle to Washington, D.C.

Explore current cheapest deals departing from Seattle to Washington, D.C.

2026-11-10 – 2026-11-17
SEA - Washington, D.C.
91% AI deal score
$245
$137
Round trip
2026-11-04 – 2026-11-10
SEA - Washington, D.C.
91% AI deal score
$244
$137
Round trip
2026-11-02 – 2026-11-09
SEA - Washington, D.C.
86% AI deal score
$244
$177
Round trip
2026-09-15 – 2026-09-22
SEA - Washington, D.C.
86% AI deal score
$259
$187
Round trip
2026-09-01 – 2026-09-05
SEA - Washington, D.C.
87% AI deal score
$277
$187
Round trip
2026-09-01 – 2026-09-08
SEA - Washington, D.C.
86% AI deal score
$260
$187
Round trip
2026-09-16 – 2026-09-23
SEA - Washington, D.C.
86% AI deal score
$259
$187
Round trip
2026-09-01 – 2026-09-09
SEA - Washington, D.C.
85% AI deal score
$249
$187
Round trip
2026-09-22 – 2026-09-26
SEA - Washington, D.C.
88% AI deal score
$272
$187
Round trip
2026-09-23 – 2026-09-26
SEA - Washington, D.C.
88% AI deal score
$272
$187
Round trip

Seattle to Washington, D.C.: Overview

Insights for flights from Seattle to Washington, D.C.

Flights from Seattle to Washington, D.C. typically range from $271–$640, with a median fare of $387. Right now, current fares are above the typical level, and only 1% of recent fares were classified as a good price. New deals appear almost daily for this route, suggesting frequent opportunities to find better pricing.

If you are looking for cheap flights from Seattle to Washington, D.C., the cheapest time to fly is often in October, with a median fare of $215. Other cost-effective months include August, where the median fare is $218, and January, with a median fare of $244.

For this route, most itineraries connect at least once, with only 31.8% of recent fares being direct flights from Seattle to Washington, D.C. When itineraries do include connections, the typical number of stopovers is 1.

A typical journey from Seattle to Washington, D.C. takes approximately 5h 6m, including connections. For itineraries that involve connecting flights, the median journey time is 9h 28m, while non-stop flights have a median duration of 5h 6m.

The distance between Seattle and Washington, D.C. is 3738 km, classifying it as a medium-haul route. This distance means you can expect a substantial flight duration, often involving a full day of travel when connections are included.

How much is a round trip from Seattle to Washington, D.C.

Regular price: $211 - $374

Prices are currently below the regular range.

The regular price range for flights from Seattle to Washington, D.C. is $211 to $374. The current lowest deal is $137 with Southwest Airlines, for travel from Nov 10-Nov 17.

now $137

Low $211

High $374

The cheapest time to fly from Seattle to Washington, D.C.

The cheapest month to fly from Seattle to Washington is January, with a median price of $254. The most expensive month is June, with a median price of $469. Prices are generally lower from January to December.

January

Cheapest

Flights from $254

June

Most Expensive

Flights from $469

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Seattle to Washington, D.C.

Alaska Airlines, Inc.

Southwest Airlines

Last-minute flights going from Seattle to Washington, D.C.

Fri, Aug 21

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$419

$224

One-way

Tue, Aug 25

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$380

$207

One-way

Wed, Aug 26

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$353

$207

One-way

Wed, Aug 26

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$376

$217

One-way

Thu, Aug 27

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$373

$207

One-way

Fri, Aug 28

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$368

$207

One-way

Biggest price drops on these dates for flights from Seattle to Washington, D.C.

2 nights

Aug 21 - Aug 23

$419 → $224

47%

2 nights

Aug 25 - Aug 27

$380 → $207

46%

4 nights

Aug 27 - Aug 31

$373 → $207

44%

3 nights

Aug 28 - Aug 31

$368 → $207

44%

Popular Airports to fly from Seattle to Washington, D.C.

Seattle - Washington, D.C. route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Seattle to Washington, D.C. are below the typical level at $137.

📅 Best time to fly

Fly in October for the lowest median price

Historically, October has offered the lowest median price at $215 for Seattle to Washington, D.C. flights.

⏱️ Flight duration

Direct flights take 5h 6m

Direct flights from Seattle to Washington, D.C. typically take 5h 6m, while connecting flights average 9h 28m.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights make up 68.2% of recent deals, with a median of 1 stopover.

🏆 Airline highlight

Southwest Airlines offers a recent deal

Southwest Airlines recently offered a flight for $137 from Seattle to Washington, D.C. on Nov 10-Nov 17.

🎯 Booking tip

Deals are frequent on this route

Historically, deals for flights from Seattle to Washington, D.C. are frequent.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International Airport is a primary option for flights from Seattle to Washington, D.C.

📍 ~18 km from city center (reachable by car or train)

💸 Flights from ~$157

Washington, D.C. main airports to arrive at

Washington Dulles International (IAD)

Cheapest

Washington Dulles International is a good option for flights to Washington, D.C. from Seattle.

📍 ~36 km from Washington, D.C. city center

💸 Flights from ~$157

Airports nearby Washington, D.C. used as alternative

Philadelphia International (PHL)

Cheapest

Philadelphia International (PHL) is a major international hub with extensive routes, often offering lower fares.

📍 ~200 km from Washington, D.C. (reachable by car or train)

💸 Flights from ~$228

Business & First Class Flight Deals to Washington, D.C.

Discover luxury on the budget with premium cabin class on flights from Seattle to Washington, D.C..

Elite

Best Elite deals to Washington, D.C.

Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.

From SEA

Elite

Aug 29

Washington, D.C., United States

89% AI deal score

$1,721

$1,115

Save $606

United Airlines

Business Class

From SEA

Elite

Sep 16

Washington, D.C., United States

89% AI deal score

$1,851

$1,115

Save $736

United Airlines

Business Class

From SEA

Elite

Sep 12

Washington, D.C., United States

89% AI deal score

$1,853

$1,115

Save $738

United Airlines

Business Class

From SEA

Elite

Jan 05

Washington, D.C., United States

89% AI deal score

$2,091

$1,307

Save $784

United Airlines

Business Class

From SEA

Elite

Sep 22

Washington, D.C., United States

88% AI deal score

$1,547

$1,115

Save $432

United Airlines

Business Class

From SEA

Elite

Sep 12

Washington, D.C., United States

88% AI deal score

$1,591

$1,115

Save $476

United Airlines

Business Class

From SEA

Elite

Sep 22

Washington, D.C., United States

87% AI deal score

$1,791

$1,235

Save $556

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Sep 05

Washington, D.C., United States

87% AI deal score

$1,762

$1,235

Save $527

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Sep 12

Washington, D.C., United States

87% AI deal score

$1,556

$1,115

Save $441

United Airlines

Business Class

From SEA

Elite

Jan 30

Washington, D.C., United States

87% AI deal score

$1,991

$1,407

Save $584

United Airlines

Business Class

From SEA

Elite

Jan 07

Washington, D.C., United States

87% AI deal score

$1,992

$1,407

Save $585

United Airlines

Business Class

From SEA

Elite

Jan 19

Washington, D.C., United States

87% AI deal score

$1,991

$1,407

Save $584

United Airlines

Business Class

Frequently Asked Questions About Flights to Washington, D.C.

Historically, booking flights from Seattle to Washington, D.C. more than 60 days in advance typically yields the lowest prices. Across the trailing quarter, the average price for flights booked in this window was $307. In contrast, booking 7-13 days out saw average prices around $456, while flights booked 28-59 days in advance averaged $718. Planning ahead can result in significant savings on this route.

Historically, a good price for a flight from Seattle to Washington, D.C. is considered to be $271 or less. Across the trailing 90 days, the median price for this route was $387. About 25% of travelers found prices at or below $271, while 75% of travelers paid $640 or less for their flights.

Historically, October has been one of the best months to fly from Seattle to Washington, D.C., with a median price of $215. August also offered favorable prices, with a median of $218. The annual median price for this route across the trailing 270 days was $387, indicating that certain months can offer substantial savings.

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Seattle to Washington, D.C.: Overview

Insights for flights from Seattle to Washington, D.C.

How much is a round trip from Seattle to Washington, D.C.

Regular price: $211 - $374

Prices are currently below the regular range.

The regular price range for flights from Seattle to Washington, D.C. is $211 to $374. The current lowest deal is $137 with Southwest Airlines, for travel from Nov 10-Nov 17.

now $137

Low $211

High $374

The cheapest time to fly from Seattle to Washington, D.C.

January

Cheapest

Flights from $254

June

Most Expensive

Flights from $469

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Seattle to Washington, D.C.

Alaska Airlines, Inc.

Southwest Airlines

Last-minute flights going from Seattle to Washington, D.C.

Fri, Aug 21

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$419

$224

One-way

Tue, Aug 25

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$380

$207

One-way

Wed, Aug 26

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$353

$207

One-way

Wed, Aug 26

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$376

$217

One-way

Thu, Aug 27

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$373

$207

One-way

Fri, Aug 28

⌛ Last-Minute

SEA - Washington, D.C.

Seattle (SEA) - Washington, D.C. (DCA)

Frontier Airlines

$368

$207

One-way

Biggest price drops on these dates for flights from Seattle to Washington, D.C.

2 nights

Aug 21 - Aug 23

$419 → $224

47%

2 nights

Aug 25 - Aug 27

$380 → $207

46%

4 nights

Aug 27 - Aug 31

$373 → $207

44%

3 nights

Aug 28 - Aug 31

$368 → $207

44%

Popular Airports to fly from Seattle to Washington, D.C.

Seattle - Washington, D.C. route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Seattle to Washington, D.C. are below the typical level at $137.

📅 Best time to fly

Fly in October for the lowest median price

Historically, October has offered the lowest median price at $215 for Seattle to Washington, D.C. flights.

⏱️ Flight duration

Direct flights take 5h 6m

Direct flights from Seattle to Washington, D.C. typically take 5h 6m, while connecting flights average 9h 28m.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights make up 68.2% of recent deals, with a median of 1 stopover.

🏆 Airline highlight

Southwest Airlines offers a recent deal

Southwest Airlines recently offered a flight for $137 from Seattle to Washington, D.C. on Nov 10-Nov 17.

🎯 Booking tip

Deals are frequent on this route

Historically, deals for flights from Seattle to Washington, D.C. are frequent.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International Airport is a primary option for flights from Seattle to Washington, D.C.

📍 ~18 km from city center (reachable by car or train)

💸 Flights from ~$157

Washington, D.C. main airports to arrive at

Washington Dulles International (IAD)

Cheapest

Washington Dulles International is a good option for flights to Washington, D.C. from Seattle.

📍 ~36 km from Washington, D.C. city center

💸 Flights from ~$157

Airports nearby Washington, D.C. used as alternative

Philadelphia International (PHL)

Cheapest

Philadelphia International (PHL) is a major international hub with extensive routes, often offering lower fares.

Washington, D.C., United States

87% AI deal score

$1,991

$1,407

Save $584

United Airlines

Business Class

Frequently Asked Questions About Flights to Washington, D.C.

Cheap Flights from Seattle to Washington, D.C.

Today’s best flight deals from Seattle to Washington, D.C.

Seattle to Washington, D.C.: Overview

Insights for flights from Seattle to Washington, D.C.

How much is a round trip from Seattle to Washington, D.C.

The cheapest time to fly from Seattle to Washington, D.C.

Direct flights from Seattle to Washington, D.C.

Last-minute flights going from Seattle to Washington, D.C.

Biggest price drops on these dates for flights from Seattle to Washington, D.C.

Popular Airports to fly from Seattle to Washington, D.C.

Seattle - Washington, D.C. route insights

Recent fares are below the typical level

Fly in October for the lowest median price

Direct flights take 5h 6m

Connecting flights are dominant

Southwest Airlines offers a recent deal

Deals are frequent on this route

Seattle main airports to depart from

Washington, D.C. main airports to arrive at

Airports nearby Washington, D.C. used as alternative

Business & First Class Flight Deals to Washington, D.C.

Best Elite deals to Washington, D.C.

Aug 29

Sep 16

Sep 12

Jan 05

Sep 22

Sep 12

Sep 22

Sep 05

Sep 12

Jan 30

Jan 07

Jan 19

Frequently Asked Questions About Flights to Washington, D.C.

How early should I book Seattle to Washington, D.C. flights to get the cheapest price?

How much should a flight from Seattle to Washington, D.C. cost?

What's the best month to fly from Seattle to Washington, D.C.?

Can I fly direct from Seattle to Washington, D.C.?

How long does it take to fly from Seattle to Washington, D.C.?

How often do cheap flights from Seattle to Washington, D.C. come up?

Related routes

More routes from Seattle

Flights to Washington, D.C. from other cities

Seattle to Washington, D.C.: Overview

Insights for flights from Seattle to Washington, D.C.

How much is a round trip from Seattle to Washington, D.C.

The cheapest time to fly from Seattle to Washington, D.C.

Direct flights from Seattle to Washington, D.C.

Last-minute flights going from Seattle to Washington, D.C.

Biggest price drops on these dates for flights from Seattle to Washington, D.C.

Popular Airports to fly from Seattle to Washington, D.C.

Seattle - Washington, D.C. route insights

Recent fares are below the typical level

Fly in October for the lowest median price

Direct flights take 5h 6m

Connecting flights are dominant

Southwest Airlines offers a recent deal

Deals are frequent on this route

Seattle main airports to depart from

Washington, D.C. main airports to arrive at

Airports nearby Washington, D.C. used as alternative

Business & First Class Flight Deals to Washington, D.C.

Best Elite deals to Washington, D.C.

Aug 29

Sep 16

Sep 12

Jan 05

Sep 22

Sep 12

Sep 22

Sep 05

Sep 12

Jan 30

Jan 07

Jan 19

Frequently Asked Questions About Flights to Washington, D.C.

How early should I book Seattle to Washington, D.C. flights to get the cheapest price?

How much should a flight from Seattle to Washington, D.C. cost?

What's the best month to fly from Seattle to Washington, D.C.?