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

Yes, direct flights from Seattle to Washington, D.C. are available. Historically, approximately 31.8% of flights on this route have been direct. For travelers opting for connecting flights, the median number of stopovers is typically one. This means that while direct options exist, a significant portion of flights will involve at least one stop.

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 is considerably longer, averaging 9 hours and 0 minutes. The distance covered on this route is approximately 3702 kilometers. Travelers should account for these differences in duration when planning their journey.

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 consistently identified as one with regular opportunities for finding good deals. Travelers can typically expect to find competitive prices with some regularity across the trailing 30 days. This indicates a steady availability of more affordable options for this specific route.

Flights From Seattle

To Washington, D.C.

Cheap Flights from Seattle to Washington, D.C.

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Deals from

Seattle

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

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

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

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

2026-09-24 – 2026-09-29
SEA - Washington, D.C.
83% AI deal score
$210
$166
Round trip
2026-09-24 – 2026-09-26
SEA - Washington, D.C.
84% AI deal score
$212
$166
Round trip
2026-09-23 – 2026-09-29
SEA - Washington, D.C.
83% AI deal score
$204
$166
Round trip
2026-08-26 – 2026-08-31
SEA - Washington, D.C.
85% AI deal score
$231
$167
Round trip
2026-09-23 – 2026-09-28
SEA - Washington, D.C.
83% AI deal score
$210
$167
Round trip
2026-09-24 – 2026-09-28
SEA - Washington, D.C.
83% AI deal score
$212
$167
Round trip
2026-08-25 – 2026-08-31
SEA - Washington, D.C.
90% AI deal score
$292
$176
Round trip
2026-09-10 – 2026-09-19
SEA - Washington, D.C.
86% AI deal score
$245
$176
Round trip
2026-09-05 – 2026-09-26
SEA - Washington, D.C.
84% AI deal score
$224
$176
Round trip
2026-09-14 – 2026-09-28
SEA - Washington, D.C.
85% AI deal score
$234
$176
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 for this route. Only 1% of recent fares were classified as a good price, indicating that finding a low fare may require some flexibility.

When is the cheapest time to fly from Seattle to Washington, D.C.? The data indicates that October is typically the most affordable month to fly, with a median fare of $215. Following closely, August also offers competitive pricing, with a median fare of $218. January is another cost-effective option, showing a median fare of $244.

Most itineraries for flights from Seattle to Washington, D.C. are connecting flights, with 31.8% of recent fares being non-stop. For the majority of itineraries that include connections, travelers can expect to make 1 stopover.

How long is the flight from Seattle to Washington, D.C.? A typical journey from Seattle to Washington, D.C. takes approximately 5h 6m, including connections. For non-stop flights, the median duration is also 5h 6m, while connecting flights typically extend to 9h 28m. This route covers a distance of 3738 kilometers, classifying it as a medium-haul journey.

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

Regular price: $179 - $379

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

The regular price range for flights from Seattle to Washington, D.C. is between $179 and $379. The current lowest deal is $166 with Southwest Airlines for travel from Sep 24-Sep 29.

now $166

Low $179

High $379

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.

Wed, Aug 12

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$353

$245

One-way

Wed, Aug 12

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$341

$245

One-way

Thu, Aug 13

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$341

$212

One-way

Tue, Aug 18

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$338

$245

One-way

Wed, Aug 19

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$360

$246

One-way

Wed, Aug 19

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$362

$253

One-way

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

4 nights

Aug 27 - Aug 31

$311 → $177

43%

6 nights

Aug 13 - Aug 19

$341 → $212

38%

2 nights

Aug 27 - Aug 29

$314 → $186

41%

3 nights

Aug 26 - Aug 29

$311 → $186

40%

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. have been below the typical level at $166.

📅 Best time to fly

Fly in October, August, or January for the best prices.

Historically, October ($215), August ($218), and January ($244) offer the lowest median prices.

⏱️ Flight duration

Direct flights take 5h 6m.

The typical direct flight from Seattle to Washington, D.C. takes 5h 6m, while connecting flights average 9h 28m.

✈️ Airlines & availability

Connecting flights are dominant.

About 31.8% of recent flights from Seattle to Washington, D.C. are direct, with connecting flights having 1 stopover.

🏆 Airline highlight

Alaska Airlines, Inc. offers direct flights.

Alaska Airlines, Inc. has offered direct flights on this route recently.

🎯 Booking tip

Deals are frequent for this route.

Deals for flights from Seattle to Washington, D.C. are frequently available.

Seattle main airports to depart from

Seattle–Tacoma International (SEA)

Cheapest

Seattle–Tacoma International is a major airport for flights from Seattle to Washington, D.C.

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

💸 Flights from ~$157

Washington, D.C. main airports to arrive at

Washington Dulles International (IAD)

Cheapest

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

📍 ~36 km from Washington, D.C. (reachable by car)

💸 Flights from ~$157

Airports nearby Washington, D.C. used as alternative

Philadelphia International (PHL)

Cheapest

Philadelphia International offers extensive routes and carrier competition, often resulting in lower fares.

📍 ~225 km from Washington, D.C. (reachable by car or Amtrak)

💸 Flights from ~$180

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

90% AI deal score

$1,740

$1,067

Save $673

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 before departure saw average prices around $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 considered to be $271 or less. The median price for this route historically stands at $387. Prices can vary, with 75% of flights costing $640 or less. Travelers aiming for a budget-friendly trip should target fares around the $271 mark.

Historically, October has been the cheapest month to fly from Seattle to Washington, D.C., with a median price of $215. August also offers competitive prices, with a median of $218. While January had a median price of $244, it was also identified as the most expensive month in the trailing 270 days. Overall, the annual median price for this route is $387, indicating that certain months 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: $179 - $379

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

The regular price range for flights from Seattle to Washington, D.C. is between $179 and $379. The current lowest deal is $166 with Southwest Airlines for travel from Sep 24-Sep 29.

now $166

Low $179

High $379

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.

Wed, Aug 12

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$353

$245

One-way

Wed, Aug 12

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$341

$245

One-way

Thu, Aug 13

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$341

$212

One-way

Tue, Aug 18

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$338

$245

One-way

Wed, Aug 19

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$360

$246

One-way

Wed, Aug 19

⌛ Last-Minute

SEA - Washington, D.C.

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

Frontier Airlines

$362

$253

One-way

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

4 nights

Aug 27 - Aug 31

$311 → $177

43%

6 nights

Aug 13 - Aug 19

$341 → $212

38%

2 nights

Aug 27 - Aug 29

$314 → $186

41%

3 nights

Aug 26 - Aug 29

$311 → $186

40%

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