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

Yes, direct flights from Seattle to Washington, D.C. are available, historically accounting for approximately 31.8% of all flights on this route. For journeys that include a stopover, travelers typically experience one connection. While direct options exist, a significant portion of flights will involve at least one stop. This means you have a good chance of finding a direct flight, but connecting flights are also common.

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

The direct flight from Seattle to Washington, D.C., covering a distance of 3702 kilometers, typically takes about 5 hours and 6 minutes. For flights with one stop, the median duration extends to approximately 9 hours. Travelers should account for these differences when planning their journey. Direct flights offer a considerably shorter travel time compared to those with a single layover.

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

Historically, cheap flights from Seattle to Washington, D.C. appear frequently. This route is classified as having frequent opportunities for finding good deals. Travelers can typically expect to see favorable prices come up regularly. This consistent availability makes it easier to plan a trip to Washington, D.C. from Seattle.

Flights From Seattle

To Washington, D.C.

Cheap Flights from Seattle to Washington, D.C.

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Deals from

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

Prices updated 1 day ago

462 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 15, 2026.)

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

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

2026-10-16 – 2026-10-20
SEA - Washington, D.C.
88% AI deal score
$243
$177
Round trip
2026-10-11 – 2026-10-17
SEA - Washington, D.C.
87% AI deal score
$230
$177
Round trip
2026-10-02 – 2026-10-06
SEA - Washington, D.C.
75% AI deal score
$292
$234
Round trip
2026-10-02 – 2026-10-07
SEA - Washington, D.C.
74% AI deal score
$279
$234
Round trip
2026-10-07 – 2026-10-14
SEA - Washington, D.C.
74% AI deal score
$231
$235
Round trip
2026-10-02 – 2026-10-05
SEA - Washington, D.C.
75% AI deal score
$293
$236
Round trip
2026-11-14 – 2026-11-16
SEA - Washington, D.C.
74% AI deal score
$291
$244
Round trip
2026-10-13 – 2026-10-21
SEA - Washington, D.C.
71% AI deal score
$174
$272
Round trip
2026-10-14 – 2026-10-21
SEA - Washington, D.C.
71% AI deal score
$181
$273
Round trip
2026-10-09 – 2026-10-14
SEA - Washington, D.C.
72% AI deal score
$227
$276
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 of $387. Right now, fares for this route are above the typical level. Only 1% of recent fares were classified as a good price for this route, indicating that finding cheap flights from Seattle to Washington, D.C. can be challenging.

When considering the cheapest time to fly from Seattle to Washington, D.C., you'll find that October is the most affordable month, with a median fare of $215. Following closely, August offers a median fare of $218, and January presents a median of $244. These months generally provide better value for travelers.

A typical journey from Seattle to Washington, D.C. covers a distance of 3,738 kilometers, classifying it as a medium-haul route. This distance means you are looking at a substantial flight, often involving connections.

Most itineraries for flights from Seattle to Washington, D.C. connect at least once, with only 31.8% of recent fares being non-stop. For connecting flights, the typical number of connections is 1 stopover. This means you should generally expect to make at least one stop on your journey.

The typical journey time for flights from Seattle to Washington, D.C., including connections, is 5h 6m. While direct flights from Seattle to Washington, D.C. can be shorter, the median connecting flight time is 9h 28m, reflecting the prevalence of itineraries with at least one stop. New deals for this route appear almost daily, suggesting frequent opportunities to find fares.

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

Regular price: $204 - $423

Prices for flights from Seattle to Washington, D.C. are currently below the regular range.

The regular price range for flights from Seattle to Washington, D.C. is typically between $204 and $423. The current lowest deal is $177 with Deutsche Luft Hansa, for travel from Oct 16-Oct 20.

now $177

Low $204

High $423

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.

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

Mon, Oct 5

⌛ Last-Minute

SEA - Washington, D.C.

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

$256

$177

One-way

Tue, Oct 6

⌛ Last-Minute

SEA - Washington, D.C.

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

$218

$177

One-way

Wed, Oct 7

⌛ Last-Minute

SEA - Washington, D.C.

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

Deutsche Luft Hansa

$231

$177

One-way

Wed, Oct 7

⌛ Last-Minute

SEA - Washington, D.C.

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

$288

$177

One-way

Sat, Oct 10

⌛ Last-Minute

SEA - Washington, D.C.

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

$230

$177

One-way

Sat, Oct 10

⌛ Last-Minute

SEA - Washington, D.C.

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

Deutsche Luft Hansa

$238

$177

One-way

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

4 nights

Oct 2 - Oct 6

$292 → $235

20%

3 nights

Oct 2 - Oct 5

$293 → $238

19%

1 night

Sep 14 - Sep 15

$553 → $500

10%

2 nights

Sep 14 - Sep 16

$550 → $500

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 are at $177, which is below the typical level of $387.

📅 Best time to fly

October is historically the cheapest month to fly.

Historically, October is the cheapest month to fly, with a median price of $215.

⏱️ Flight duration

Direct flights take 5h 6m.

Direct flights typically take 5h 6m, while connecting flights average 9h 28m.

✈️ Airlines & availability

Connecting flights are more common.

Connecting flights are more common, making up 68.2% of recent flights.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights.

Alaska Airlines, Inc. offers direct flights from Seattle to Washington, D.C.

🎯 Booking tip

Deals appear frequently on this route.

Deals on flights from Seattle to Washington, D.C. appear frequently.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a key departure point for flights from Seattle to Washington, D.C.

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

💸 Flights from ~$278

Boeing Field (BFI)

Boeing Field offers an alternative departure option for your trip from Seattle to Washington, D.C.

📍 ~9 km from Seattle city center (reachable by car)

💸 Flights from ~$631

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base is another departure choice for flights from Seattle to Washington, D.C.

📍 ~3 km from Seattle city center (reachable by car)

💸 Flights from ~$712

Washington, D.C. main airports to arrive at

Ronald Reagan Washington National (DCA)

Cheapest

Ronald Reagan Washington National is a convenient arrival airport for flights from Seattle to Washington, D.C.

📍 ~6 km from Washington, D.C. (reachable by car)

💸 Flights from ~$278

Airports nearby Washington, D.C. used as alternative

Philadelphia International (PHL)

Cheapest

Philadelphia International offers extensive domestic and global routes, often with lower fares, despite significant travel distance.

📍 ~220 km from Washington, D.C. (reachable by car or Amtrak)

💸 Flights from ~$253

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

Jan 12

Washington, D.C., United States

92% AI deal score

$2,179

$1,207

Save $972

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 13

Washington, D.C., United States

92% AI deal score

$2,182

$1,207

Save $975

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 09

Washington, D.C., United States

92% AI deal score

$2,145

$1,207

Save $938

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 20

Washington, D.C., United States

92% AI deal score

$2,365

$1,207

Save $1,158

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 16

Washington, D.C., United States

92% AI deal score

$2,211

$1,207

Save $1,004

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 22

Washington, D.C., United States

92% AI deal score

$2,374

$1,217

Save $1,157

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 15

Washington, D.C., United States

92% AI deal score

$2,200

$1,217

Save $983

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 06

Washington, D.C., United States

91% AI deal score

$2,097

$1,207

Save $890

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 05

Washington, D.C., United States

91% AI deal score

$2,077

$1,207

Save $870

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 04

Washington, D.C., United States

91% AI deal score

$2,071

$1,232

Save $839

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 19

Washington, D.C., United States

91% AI deal score

$2,065

$1,237

Save $828

Alaska Airlines, Inc.

Business Class

From SEA

Elite

Jan 27

Washington, D.C., United States

91% AI deal score

$2,130

$1,287

Save $843

Alaska Airlines, Inc.

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 within this window was around $307. In contrast, booking 7-13 days before departure saw average prices of $456, while flights booked 28-59 days out averaged $718. Planning ahead by at least two months can lead to significant savings on this route.

Based on data from the trailing 90 days, a good price for a flight from Seattle to Washington, D.C. is typically around $271 or less. The median price for this route was $387. Prices can vary, with 75% of observed fares falling below $640. Aiming for a price at or below the $271 threshold indicates a favorable deal.

Historically, October has been one of the most affordable months to fly from Seattle to Washington, D.C., with a median price of $215. August also offered competitive prices, with a median of $218. While January had a median price of $244, it was also noted as the most expensive month in the trailing 270 days. These months typically present better value compared to the annual median price of $387.

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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: $204 - $423

Prices for flights from Seattle to Washington, D.C. are currently below the regular range.

The regular price range for flights from Seattle to Washington, D.C. is typically between $204 and $423. The current lowest deal is $177 with Deutsche Luft Hansa, for travel from Oct 16-Oct 20.

now $177

Low $204

High $423

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.

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

Mon, Oct 5

⌛ Last-Minute

SEA - Washington, D.C.

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

$256

$177

One-way

Tue, Oct 6

⌛ Last-Minute

SEA - Washington, D.C.

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

$218

$177

One-way

Wed, Oct 7

⌛ Last-Minute

SEA - Washington, D.C.

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

Deutsche Luft Hansa

$231

$177

One-way

Wed, Oct 7

⌛ Last-Minute

SEA - Washington, D.C.

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

$288

$177

One-way

Sat, Oct 10

⌛ Last-Minute

SEA - Washington, D.C.

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

$230

$177

One-way

Sat, Oct 10

⌛ Last-Minute

SEA - Washington, D.C.

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

Deutsche Luft Hansa

$238

$177

One-way

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

4 nights

Oct 2 - Oct 6

$292 → $235

20%

3 nights

Oct 2 - Oct 5

$293 → $238

19%

1 night

Sep 14 - Sep 15

$553 → $500

10%

2 nights

Sep 14 - Sep 16

$550 → $500

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 are at $177, which is below the typical level of $387.

📅 Best time to fly

October is historically the cheapest month to fly.

Historically, October is the cheapest month to fly, with a median price of $215.

⏱️ Flight duration

Direct flights take 5h 6m.

Direct flights typically take 5h 6m, while connecting flights average 9h 28m.

✈️ Airlines & availability

Connecting flights are more common.

Connecting flights are more common, making up 68.2% of recent flights.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights.

Alaska Airlines, Inc. offers direct flights from Seattle to Washington, D.C.

🎯 Booking tip

Deals appear frequently on this route.

Deals on flights from Seattle to Washington, D.C. appear frequently.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a key departure point for flights from Seattle to Washington, D.C.

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

💸 Flights from ~$278

Boeing Field (BFI)

Boeing Field offers an alternative departure option for your trip from Seattle to Washington, D.C.

📍 ~9 km from Seattle city center (reachable by car)

💸 Flights from ~$631

Kenmore Air Harbor Seaplane Base (LKE)

Kenmore Air Harbor Seaplane Base is another departure choice for flights from Seattle to Washington, D.C.

📍 ~3 km from Seattle city center (reachable by car)

💸 Flights from ~$712

Washington, D.C. main airports to arrive at

Ronald Reagan Washington National (DCA)

Cheapest

Ronald Reagan Washington National is a convenient arrival airport for flights from Seattle to Washington, D.C.

📍 ~6 km from Washington, D.C. (reachable by car)

💸 Flights from ~$278

Airports nearby Washington, D.C. used as alternative

Philadelphia International (PHL)

Cheapest

Philadelphia International offers extensive domestic and global routes, often with lower fares, despite significant travel distance.

Washington, D.C., United States

91% AI deal score

$2,130

$1,287

Save $843

Alaska Airlines, Inc.

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.

October is historically the cheapest month to fly.

Direct flights take 5h 6m.

Connecting flights are more common.

Alaska Airlines, Inc. offers direct flights.

Deals appear frequently 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.

Jan 12

Jan 13

Jan 09

Jan 20

Jan 16

Jan 22

Jan 15

Jan 06

Jan 05

Jan 04

Jan 19

Jan 27

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.

October is historically the cheapest month to fly.

Direct flights take 5h 6m.

Connecting flights are more common.

Alaska Airlines, Inc. offers direct flights.

Deals appear frequently 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.

Jan 12

Jan 13

Jan 09

Jan 20

Jan 16

Jan 22

Jan 15

Jan 06

Jan 05

Jan 04

Jan 19

Jan 27

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.?