What are the cheapest airlines to fly from District of Columbia to Seattle one-way?

The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from District of Columbia to Seattle for a low price.

What are the cheapest flights from District of Columbia to Seattle?

The cheapest flight price from District of Columbia to Seattle is $143. On average you can expect to pay $1,126. The most popular route, (Washington, D.C. Reagan-National - Seattle/Tacoma Intl), can usually be booked for $279.

What are the most reliable airlines from District of Columbia to Seattle?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from District of Columbia to Seattle on time: Singapore Airlines (89%), Qatar Airways (83%), China Eastern (81%).

What are the most popular airlines that fly from District of Columbia to Seattle?

When booking a flight from District of Columbia to Seattle, you may want to consider flying on American Airlines, Alaska Airlines or Delta as they are the most popular for this route.

How far in advance should I book a flight from District of Columbia to Seattle?

To save on the cost of your flight from District of Columbia to Seattle, book at least 31 days before your planned departure. Booking around this time can save you about 95% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $551 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $631.

What is the cheapest month to fly from District of Columbia to Seattle?

Our data shows that September tends to be the cheapest month to fly to Seattle from District of Columbia. Users have commonly found prices around $416 for the month, but tickets can be as low as $206. Due to multiple factors, prepare for potentially higher prices in June.

What airport do you fly into for flights to Seattle from District of Columbia?

Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from District of Columbia. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Can I find deals for flights from District of Columbia to Seattle that include hotel bookings?

Yes. In addition to deals on District of Columbia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from District of Columbia to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Seattle.

Can I find deals for business class flights from District of Columbia to Seattle?

Yes. Cheapflights offers flight deals from District of Columbia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$144+ Flights from District of Columbia to Seattle

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Cheap flight deals from District of Columbia to Seattle

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$277 (American Airlines)
One-way from	$144 (Delta)
Popular in	June
Cheapest in	September
Average price	$419
Good round-trip deal	$303 or less
Good one-way deal	$198 or less

Provider with most accurate pricing for Washington, D.C. (WAS)-Seattle/Tacoma Intl flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seattle/Tacoma Intl flights.

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From District of Columbia to Seattle/Tacoma Intl

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One-way flight from District of Columbia to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($44 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

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Price to beat on a round-trip flight from District of Columbia to Seattle/Tacoma Intl.

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Price to beat on a one-way flight from District of Columbia to Seattle/Tacoma Intl.

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Find flight deals from District of Columbia to Seattle

Cheapest flights from District of Columbia to Seattle
Explore the most affordable flight options available from District of Columbia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Tue 5/135:00 amDCA - SEA

1 stop8h 42mAmerican Airlines

Tue 5/207:20 amSEA - DCA

1 stop7h 39mAmerican Airlines

Deal found 3/27

$277

Sat 4/266:00 pmDCA - SEA

1 stop9h 44mFrontier

Sat 5/36:00 amSEA - DCA

1 stop12h 59mFrontier

Deal found 3/27

$278

Fri 5/28:01 amIAD - SEA

1 stop13h 01mFrontier

Sun 5/118:22 pmSEA - IAD

1 stop31h 09mFrontier

Deal found 3/27

$280

Fri 4/257:25 amIAD - SEA

Nonstop5h 55mDelta

Mon 4/2810:30 pmSEA - IAD

Nonstop4h 50mDelta

Deal found 3/27

$287

Sat 5/34:50 pmDCA - SEA

Nonstop6h 01mDelta

Sat 5/107:35 amSEA - DCA

Nonstop5h 15mDelta

Deal found 3/27

$287

Wed 4/305:13 pmIAD - SEA

1 stop8h 51mAmerican Airlines

Sat 5/35:22 amSEA - IAD

1 stop8h 01mAmerican Airlines

Deal found 3/27

$292

Fri 10/36:30 pmIAD - SEA

1 stop25h 31mSun Country Air

Sat 10/116:28 pmSEA - IAD

1 stop14h 10mSun Country Air

Deal found 3/27

$295

Tue 5/135:26 pmIAD - SEA

Nonstop5h 52mUnited Airlines

Mon 5/195:40 pmSEA - IAD

1 stop8h 43mUnited Airlines

Deal found 3/28

$297

Thu 4/2412:37 pmIAD - SEA

1 stop24h 55mMultiple Airlines

Thu 5/18:22 pmSEA - IAD

1 stop31h 09mMultiple Airlines

Deal found 3/27

$299

Wed 5/287:15 amIAD - SEA

1 stop9h 29mAlaska Airlines

Wed 5/284:00 pmSEA - IAD

Nonstop4h 59mAlaska Airlines

Deal found 3/27

$301

Fri 4/255:35 pmIAD - SEA

1 stop9h 55mSouthwest

Thu 5/15:35 amSEA - IAD

1 stop9h 20mSouthwest

Deal found 3/27

$302

Tue 4/227:30 amDCA - SEA

1 stop12h 20mSouthwest

Thu 4/249:35 amSEA - DCA

1 stop8h 05mSouthwest

Deal found 3/27

$302

Best flights from District of Columbia to Seattle
Discover carefully curated flight deals from District of Columbia to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 28, 2025.

Wed 4/166:18 amIAD - SEA

1 stop9h 43mAmerican Airlines

Tue 4/291:35 pmSEA - IAD

1 stop7h 21mAmerican Airlines

Deal found 3/26

$277

Tue 4/226:00 pmDCA - SEA

1 stop9h 44mFrontier

Thu 5/16:00 amSEA - DCA

1 stop12h 59mFrontier

Deal found 3/26

$278

Fri 4/187:25 amIAD - SEA

Nonstop5h 55mDelta

Mon 4/2810:30 pmSEA - IAD

Nonstop4h 50mDelta

Deal found 3/26

$287

Fri 5/28:01 amIAD - SEA

1 stop13h 01mMultiple Airlines

Sun 5/411:40 pmSEA - IAD

Nonstop5h 03mMultiple Airlines

Deal found 3/26

$293

Wed 4/237:13 pmIAD - SEA

Nonstop5h 47mAlaska Airlines

Thu 5/16:00 amSEA - IAD

1 stop8h 59mAlaska Airlines

Deal found 3/26

$297

Tue 4/227:30 amDCA - SEA

1 stop12h 20mSouthwest

Wed 4/236:00 amSEA - DCA

1 stop9h 10mSouthwest

Deal found 3/26

$302

Thu 5/19:59 amDCA - SEA

1 stop9h 51mHawaiian Airlines

Tue 5/610:13 amSEA - DCA

1 stop8h 46mHawaiian Airlines

Deal found 3/25

$306

Sun 4/204:00 pmIAD - SEA

1 stop10h 00mUnited Airlines

Fri 4/2512:46 pmSEA - IAD

Nonstop5h 08mUnited Airlines

Deal found 3/26

$314

Mon 4/76:35 amIAD - SEA

1 stop13h 39mSun Country Air

Thu 4/1711:50 pmSEA - IAD

1 stop8h 33mSun Country Air

Deal found 3/26

$315

Tue 4/83:45 pmDCA - SEA

1 stop9h 42mJetBlue

Mon 4/1411:55 pmSEA - DCA

1 stop12h 05mJetBlue

Deal found 3/26

$323

Tue 4/225:14 pmDCA - SEA

1 stop8h 50mAmerican Airlines

Fri 4/2512:59 amSEA - DCA

1 stop8h 00mAmerican Airlines

Deal found 3/26

$277

Fri 5/28:01 amIAD - SEA

1 stop13h 01mFrontier

Sun 5/118:22 pmSEA - IAD

1 stop31h 09mFrontier

Deal found 3/27

$280

Last-minute flights from District of Columbia to Seattle
Discover last-minute flight deals from District of Columbia to Seattle. Data last updated March 28, 2025 and is based on user searches.

Thu 4/31:00 pmDCA - SEA

1 stop12h 27mJetBlue

Tue 4/811:55 pmSEA - DCA

1 stop9h 04mJetBlue

Deal found 3/27

$415

Thu 4/311:05 amIAD - SEA

1 stop26h 50mSun Country Air

Sun 4/68:00 amSEA - IAD

1 stop24h 07mSun Country Air

Deal found 3/27

$530

Fri 4/46:00 pmDCA - SEA

1 stop24h 32mFrontier

Sat 4/124:22 pmSEA - DCA

1 stop26h 37mFrontier

Deal found 3/27

$288

Fri 4/47:43 amIAD - SEA

Nonstop5h 54mDelta

Mon 4/2810:30 pmSEA - IAD

Nonstop4h 50mDelta

Deal found 3/27

$488

Fri 4/45:13 pmIAD - SEA

1 stop8h 46mAmerican Airlines

Mon 4/2810:05 pmSEA - IAD

1 stop7h 33mAmerican Airlines

Deal found 3/27

$533

Fri 4/410:20 pmIAD - SEA

1 stop14h 27mUnited Airlines

Mon 4/285:10 pmSEA - IAD

2 stops11h 05mUnited Airlines

Deal found 3/27

$550

Fri 4/48:00 amDCA - SEA

Nonstop5h 58mAlaska Airlines

Mon 4/2810:13 amSEA - DCA

1 stop8h 46mAlaska Airlines

Deal found 3/27

$567

Fri 4/43:35 pmIAD - SEA

1 stop7h 50mSouthwest

Sun 4/132:45 pmSEA - IAD

1 stop7h 20mSouthwest

Deal found 3/27

$604

Fri 4/43:54 pmDCA - SEA

1 stop9h 05mAmerican Airlines

Thu 4/1012:59 amSEA - DCA

1 stop8h 00mAmerican Airlines

Deal found 3/27

$604

Sun 4/66:00 amDCA - SEA

1 stop9h 26mDelta

Tue 4/223:55 pmSEA - DCA

1 stop27h 50mDelta

Deal found 3/27

$548

Sun 4/67:00 amIAD - SEA

Nonstop5h 52mAlaska Airlines

Mon 4/219:15 pmSEA - IAD

1 stop16h 23mAlaska Airlines

Deal found 3/27

$590

Sun 4/66:00 amDCA - SEA

1 stop10h 08mUnited Airlines

Fri 4/1810:50 amSEA - DCA

1 stop7h 15mUnited Airlines

Deal found 3/27

$608

One-way flights from District of Columbia to Seattle
Search for one-way flight options from District of Columbia to Seattle. Find affordable one-way fares based on user searches. Data last updated March 28, 2025.

Sat 4/197:25 amIAD - SEA

Nonstop5h 55mDelta

Deal found 3/27

$144

Tue 4/294:50 pmDCA - SEA

Nonstop6h 01mDelta

Deal found 3/25

$144

Fri 5/97:45 amIAD - SEA

1 stop13h 17mFrontier

Deal found 3/27

$145

Fri 4/46:00 pmDCA - SEA

1 stop24h 32mFrontier

Deal found 3/26

$145

Wed 6/115:35 pmIAD - SEA

1 stop10h 40mSouthwest

Deal found 3/27

$149

Thu 4/173:30 pmIAD - SEA

1 stop10h 13mUnited Airlines

Deal found 3/27

$154

Thu 4/177:01 pmDCA - SEA

1 stop9h 01mAmerican Airlines

Deal found 3/27

$154

Sat 4/265:38 pmIAD - SEA

1 stop9h 17mAlaska Airlines

Deal found 3/27

$158

Mon 4/76:35 amIAD - SEA

1 stop13h 39mSun Country Air

Deal found 3/27

$165

Wed 6/1812:00 pmDCA - SEA

1 stop9h 53mUnited Airlines

Deal found 3/26

$169

Sat 4/196:18 amIAD - SEA

1 stop9h 43mAmerican Airlines

Deal found 3/27

$179

Tue 4/228:00 amDCA - SEA

Nonstop5h 40mAlaska Airlines

Deal found 3/26

$179

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Tue 5/13

5:00 am-10:42 am

1 stop8h 42m

Seattle/Tacoma Intl

Tue 5/20

7:20 am-5:59 pm

1 stop7h 39m

$277

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Sat 4/26

6:00 pm-12:44 am

1 stop9h 44m

Seattle/Tacoma Intl

Sat 5/3

6:00 am-9:59 pm

1 stop12h 59m

$278

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Fri 5/2

8:01 am-6:02 pm

1 stop13h 01m

Seattle/Tacoma Intl

Sun 5/11

8:22 pm-6:31 am

1 stop31h 09m

$280

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Fri 4/25

7:25 am-10:20 am

Nonstop5h 55m

Seattle/Tacoma Intl

Mon 4/28

10:30 pm-6:20 am

Nonstop4h 50m

$287

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Sat 5/3

4:50 pm-7:51 pm

Nonstop6h 01m

Seattle/Tacoma Intl

Wed 5/7

7:35 am-3:50 pm

Nonstop5h 15m

$287

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 4/30

5:13 pm-11:04 pm

1 stop8h 51m

Seattle/Tacoma Intl

Sat 5/3

5:22 am-4:23 pm

1 stop8h 01m

$292

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 5/13

10:00 am-12:40 pm

Nonstop5h 40m

Seattle/Tacoma Intl

Tue 5/20

11:30 pm-7:36 am

Nonstop5h 06m

$297

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 4/24

12:37 pm-10:32 am

1 stop24h 55m

Seattle/Tacoma Intl

Thu 5/1

8:22 pm-6:31 am

1 stop31h 09m

$299

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Fri 4/25

5:35 pm-12:30 am

1 stop9h 55m

Seattle/Tacoma Intl

Thu 5/1

5:35 am-5:55 pm

1 stop9h 20m

$302

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Tue 4/22

7:30 am-4:50 pm

1 stop12h 20m

Seattle/Tacoma Intl

Thu 4/24

9:35 am-8:40 pm

1 stop8h 05m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 35 results

Best time to book a flight from District of Columbia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from District of Columbia with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Seattle

What is the cheapest month to book a flight from District of Columbia to Seattle?

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Seattle (average of $238). Flying from District of Columbia to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to SEA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Seattle as you normally would.

Weekly flight availability from District of Columbia to Seattle

The most flights from USDC to SEA are scheduled on a Thursday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Seattle by month

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

See what other customers who have flown with Southwest, Alaska Airlines and Delta from District of Columbia to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.1

Very good

4,273 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines

8.0

Very good

9,798 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,896 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Hawaiian Airlines

7.9

Good

2,336 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,603 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

What airport do you fly into for flights to Seattle from District of Columbia?
Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from District of Columbia. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.
What are the cheapest airlines to fly from District of Columbia to Seattle one-way?
The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from District of Columbia to Seattle for a low price.
What are the most reliable airlines from District of Columbia to Seattle?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from District of Columbia to Seattle on time: Singapore Airlines (89%), Qatar Airways (83%), China Eastern (81%).
What are the cheapest flights from District of Columbia to Seattle?
The cheapest flight price from District of Columbia to Seattle is $143. On average you can expect to pay $1,126. The most popular route, (Washington, D.C. Reagan-National - Seattle/Tacoma Intl), can usually be booked for $279.
Can I find deals for flights from District of Columbia to Seattle that include hotel bookings?
Yes. In addition to deals on District of Columbia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Seattle.
Can I find deals for business class flights from District of Columbia to Seattle?
Yes. Cheapflights offers flight deals from District of Columbia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from District of Columbia to Seattle?
Currently, January is the cheapest month in which you can book a flight from District of Columbia to Seattle (average of $238). Flying from District of Columbia to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

SeaTac

Tukwila

Tacoma

Lakewood

Renton

Lacey

Ocean Shores

Leavenworth

Federal Way

Olympia

Cle Elum

Centralia

Mukilteo

Aberdeen

Shoreline

Lynnwood

Shelton

Silverdale

Redmond

Monroe

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Top 10 airlines flying from District of Columbia to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$90	Average$247	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$131	Average$382	FlexibilityNo cancel fee	On-time62%
Hawaiian Airlines	Cheapest$143	Average$457	FlexibilityNo cancel fee	On-time85%
Sun Country Air	Cheapest$144	Average$363	FlexibilityNo cancel fee	On-time83%
Spirit Airlines	Cheapest$145	Average$262	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$206	Average$466	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$206	Average$409	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$240	Average$496	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$277	Average$452	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$306	Average$571	FlexibilityNo cancel fee	On-time63%

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$144+ Cheap flights from District of Columbia to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from District of Columbia to Seattle

Keep the following information in mind while searching for District of Columbia to Seattle flight deals. Data was last updated March 28, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from District of Columbia to Seattle

Cheapest flights from District of Columbia to SeattleExplore the most affordable flight options available from District of Columbia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Explore the most affordable flight options available from District of Columbia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Seattle that are best for you.

Best time to book a flight from District of Columbia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from District of Columbia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Seattle

What is the cheapest month to book a flight from District of Columbia to Seattle?

What is the cheapest time of day to fly from DC to SEA?

Find hourly flight availability from District of Columbia to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Weekly flight availability from District of Columbia to Seattle

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

See what other customers who have flown with Southwest, Alaska Airlines and Delta from District of Columbia to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Seattle from District of Columbia?

What are the cheapest airlines to fly from District of Columbia to Seattle one-way?

What are the most reliable airlines from District of Columbia to Seattle?

What are the cheapest flights from District of Columbia to Seattle?

Can I find deals for flights from District of Columbia to Seattle that include hotel bookings?

How can I find direct flights from District of Columbia to Seattle?

Can I find deals for business class flights from District of Columbia to Seattle?

What is the cheapest month to book a flight from District of Columbia to Seattle?

Traveling to a place near District of Columbia?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for District of Columbia to Seattle

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Top 10 airlines flying from District of Columbia to Seattle

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Cheapest flights from District of Columbia to Seattle
Explore the most affordable flight options available from District of Columbia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.