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

The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from Delta and Frontier, 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 $875. The most popular route, (Washington, D.C. Dulles Intl - Seattle/Tacoma Intl), can usually be booked for $248.

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: Iberia (100%), Singapore Airlines (100%), Japan Airlines (87%).

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 76% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $556 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $625.

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 $413 for the month, but tickets can be as low as $200. Due to multiple factors, prepare for potentially higher prices in December.

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.

$143+ Flights from District of Columbia to Seattle

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Cheap flight deals from District of Columbia to Seattle

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$188 (Frontier)
One-way from	$143 (Trip.com)
Popular in	December
Cheapest in	September
Average price	$391
Good round-trip deal	$298 or less
Good one-way deal	$203 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. 1% potential increase in price ($6 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 April 2025

Search Deals

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 April 17, 2025.

Thu 4/241:00 pmDCA - SEA

1 stop14h 44mFrontier

Tue 4/296:00 amSEA - DCA

1 stop12h 59mFrontier

Deal found 4/16

$188

Mon 5/127:45 amIAD - SEA

1 stop13h 15mMultiple Airlines

Thu 5/157:10 pmSEA - IAD

1 stop14h 28mMultiple Airlines

Deal found 4/16

$277

Sun 5/47:31 amIAD - SEA

1 stop13h 29mFrontier

Fri 5/96:52 pmSEA - IAD

1 stop8h 39mFrontier

Deal found 4/17

$280

Wed 5/286:00 pmDCA - SEA

1 stop8h 27mMultiple Airlines

Tue 6/31:48 pmSEA - DCA

Nonstop5h 11mMultiple Airlines

Deal found 4/16

$283

Thu 5/87:45 amIAD - SEA

Nonstop5h 48mDelta

Wed 5/149:50 pmSEA - IAD

Nonstop5h 02mDelta

Deal found 4/17

$287

Wed 5/147:13 pmIAD - SEA

Nonstop5h 47mHawaiian Airlines

Sat 5/2411:30 pmSEA - IAD

Nonstop5h 06mHawaiian Airlines

Deal found 4/17

$292

Thu 8/2112:45 pmIAD - SEA

1 stop12h 58mSun Country Air

Thu 8/2811:55 pmSEA - IAD

1 stop9h 38mSun Country Air

Deal found 4/17

$295

Thu 5/86:30 amIAD - SEA

Nonstop5h 43mAlaska Airlines

Mon 5/125:59 pmSEA - IAD

1 stop8h 41mAlaska Airlines

Deal found 4/17

$297

Sat 5/314:59 pmDCA - SEA

Nonstop5h 51mDelta

Sat 6/77:35 amSEA - DCA

Nonstop5h 14mDelta

Deal found 4/16

$297

Wed 5/146:22 amIAD - SEA

1 stop8h 03mUnited Airlines

Wed 5/218:10 amSEA - IAD

Nonstop5h 08mUnited Airlines

Deal found 4/17

$302

Sat 5/249:59 amDCA - SEA

1 stop11h 52mHawaiian Airlines

Wed 5/281:48 pmSEA - DCA

Nonstop5h 11mHawaiian Airlines

Deal found 4/15

$307

Thu 5/85:02 amIAD - SEA

1 stop10h 26mAmerican Airlines

Sat 5/175:20 amSEA - IAD

1 stop8h 36mAmerican Airlines

Deal found 4/17

$308

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 April 17, 2025.

Thu 4/241:00 pmDCA - SEA

1 stop14h 44mFrontier

Tue 4/296:00 amSEA - DCA

1 stop12h 59mFrontier

Deal found 4/16

$188

Mon 5/127:45 amIAD - SEA

1 stop13h 15mMultiple Airlines

Thu 5/157:10 pmSEA - IAD

1 stop14h 28mMultiple Airlines

Deal found 4/16

$277

Thu 5/86:30 amIAD - SEA

Nonstop5h 43mHawaiian Airlines

Wed 5/144:00 pmSEA - IAD

Nonstop4h 58mHawaiian Airlines

Deal found 4/16

$286

Thu 5/86:30 amIAD - SEA

Nonstop5h 43mAlaska Airlines

Mon 5/129:16 pmSEA - IAD

1 stop15h 44mAlaska Airlines

Deal found 4/17

$297

Sat 5/314:59 pmDCA - SEA

Nonstop5h 51mDelta

Sat 6/77:35 amSEA - DCA

Nonstop5h 14mDelta

Deal found 4/15

$297

Wed 5/146:22 amIAD - SEA

1 stop8h 03mUnited Airlines

Wed 5/218:10 amSEA - IAD

Nonstop5h 08mUnited Airlines

Deal found 4/17

$302

Thu 5/85:02 amIAD - SEA

1 stop10h 26mAmerican Airlines

Sat 5/175:20 amSEA - IAD

1 stop8h 36mAmerican Airlines

Deal found 4/17

$308

Thu 5/1512:49 pmIAD - SEA

1 stop24h 56mSun Country Air

Wed 5/216:33 pmSEA - IAD

1 stop14h 14mSun Country Air

Deal found 4/16

$315

Fri 7/44:15 pmDCA - SEA

1 stop10h 05mSouthwest

Wed 7/910:40 pmSEA - DCA

1 stop9h 25mSouthwest

Deal found 4/16

$357

Tue 7/13:00 pmDCA - SEA

1 stop10h 10mJetBlue

Tue 7/229:50 pmSEA - DCA

1 stop9h 48mJetBlue

Deal found 4/16

$372

Thu 5/227:25 amIAD - SEA

1 stop9h 51mFrontier

Sun 5/253:11 pmSEA - IAD

1 stop11h 44mFrontier

Deal found 4/17

$280

Wed 5/286:00 pmDCA - SEA

1 stop8h 27mMultiple Airlines

Tue 6/31:48 pmSEA - DCA

Nonstop5h 11mMultiple Airlines

Deal found 4/16

$283

Last-minute flights from District of Columbia to Seattle
Discover last-minute flight deals from District of Columbia to Seattle. Data last updated April 17, 2025 and is based on user searches.

Tue 4/221:00 pmDCA - SEA

1 stop14h 44mFrontier

Thu 4/246:00 amSEA - DCA

1 stop7h 59mFrontier

Deal found 4/17

$320

Wed 4/238:00 amDCA - SEA

Nonstop5h 40mMultiple Airlines

Sat 4/266:00 amSEA - DCA

1 stop7h 59mMultiple Airlines

Deal found 4/17

$534

Wed 4/232:12 pmIAD - SEA

1 stop9h 52mAmerican Airlines

Wed 4/3011:54 amSEA - IAD

1 stop7h 48mAmerican Airlines

Deal found 4/17

$604

Thu 4/2412:37 pmIAD - SEA

1 stop24h 55mMultiple Airlines

Thu 5/18:22 pmSEA - IAD

1 stop31h 09mMultiple Airlines

Deal found 4/17

$394

Thu 4/2412:37 pmIAD - SEA

1 stop7h 42mSun Country Air

Sun 4/276:20 pmSEA - IAD

1 stop13h 17mSun Country Air

Deal found 4/17

$456

Thu 4/242:10 pmIAD - SEA

2 stops13h 15mSouthwest

Thu 5/17:20 amSEA - IAD

1 stop7h 35mSouthwest

Deal found 4/17

$609

Thu 4/247:25 amIAD - SEA

Nonstop5h 55mDelta

Tue 4/2910:30 pmSEA - IAD

Nonstop4h 50mDelta

Deal found 4/17

$689

Sat 4/268:30 amIAD - SEA

1 stop15h 32mUnited Airlines

Tue 4/293:35 pmSEA - IAD

1 stop10h 47mUnited Airlines

Deal found 4/17

$643

Sun 4/276:30 amIAD - SEA

Nonstop5h 43mAlaska Airlines

Sun 5/44:24 pmSEA - IAD

Nonstop4h 59mAlaska Airlines

Deal found 4/17

$584

Sun 4/274:50 pmDCA - SEA

Nonstop6h 01mDelta

Sun 5/47:25 amSEA - DCA

Nonstop5h 06mDelta

Deal found 4/17

$584

Sun 4/274:40 pmDCA - SEA

1 stop11h 35mSouthwest

Sun 5/49:40 amSEA - DCA

2 stops10h 55mSouthwest

Deal found 4/17

$659

Sun 4/2712:59 pmDCA - SEA

1 stop9h 01mAmerican Airlines

Sat 5/312:59 amSEA - DCA

1 stop8h 00mAmerican Airlines

Deal found 4/17

$673

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 April 17, 2025.

Fri 5/307:25 amIAD - SEA

1 stop19h 45mMultiple Airlines

Deal found 4/16

$143

Thu 5/85:26 pmIAD - SEA

Nonstop5h 52mUnited Airlines

Deal found 4/16

$144

Tue 5/134:59 pmDCA - SEA

Nonstop5h 51mDelta

Deal found 4/16

$144

Thu 5/297:25 amIAD - SEA

1 stop9h 51mFrontier

Deal found 4/16

$148

Tue 5/68:59 amDCA - SEA

1 stop11h 59mHawaiian Airlines

Deal found 4/16

$148

Wed 5/287:45 amIAD - SEA

Nonstop5h 48mDelta

Deal found 4/16

$149

Tue 5/66:40 pmIAD - SEA

1 stop7h 50mSouthwest

Deal found 4/16

$154

Mon 6/212:43 pmIAD - SEA

1 stop7h 44mSun Country Air

Deal found 4/16

$155

Tue 6/37:15 amIAD - SEA

1 stop9h 29mAlaska Airlines

Deal found 4/17

$158

Tue 6/176:50 pmDCA - SEA

1 stop8h 15mSouthwest

Deal found 4/17

$159

Tue 5/2712:00 pmDCA - SEA

1 stop9h 53mUnited Airlines

Deal found 4/17

$174

Tue 7/155:43 pmDCA - SEA

1 stop8h 16mAlaska Airlines

Deal found 4/16

$178

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

Thu 4/24

1:00 pm-12:44 am

1 stop14h 44m

Seattle/Tacoma Intl

Tue 4/29

6:00 am-9:59 pm

1 stop12h 59m

$188

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Mon 5/12

7:45 am-6:00 pm

1 stop13h 15m

Seattle/Tacoma Intl

Thu 5/15

7:10 pm-12:38 pm

1 stop14h 28m

$277

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sun 5/4

7:31 am-6:00 pm

1 stop13h 29m

Seattle/Tacoma Intl

Fri 5/9

6:52 pm-6:31 am

1 stop8h 39m

$280

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Wed 5/28

8:00 am-10:39 am

Nonstop5h 39m

Seattle/Tacoma Intl

Sat 5/31

6:25 am-4:59 pm

1 stop7h 34m

$283

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 5/8

7:45 am-10:33 am

Nonstop5h 48m

Seattle/Tacoma Intl

Wed 5/14

9:50 pm-5:52 am

Nonstop5h 02m

$287

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 5/8

6:30 am-9:13 am

Nonstop5h 43m

Seattle/Tacoma Intl

Sat 5/17

6:49 pm-5:55 am

1 stop8h 06m

$294

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 8/21

12:45 pm-10:43 pm

1 stop12h 58m

Seattle/Tacoma Intl

Thu 8/28

11:55 pm-12:33 pm

1 stop9h 38m

$295

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Thu 5/8

6:30 am-9:13 am

Nonstop5h 43m

Seattle/Tacoma Intl

Mon 5/12

5:59 pm-5:40 am

1 stop8h 41m

$297

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Sat 5/31

4:59 pm-7:50 pm

Nonstop5h 51m

Seattle/Tacoma Intl

Sat 6/7

7:35 am-3:49 pm

Nonstop5h 14m

$297

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 5/14

6:22 am-11:25 am

1 stop8h 03m

Seattle/Tacoma Intl

Wed 5/21

8:10 am-4:18 pm

Nonstop5h 08m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 (23 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 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 Alaska Airlines, Southwest 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.

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,887 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Southwest

8.0

Very good

4,280 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,916 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines

7.9

Good

2,380 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,667 reviews

Alaska Airlines

8.0

Very good

9,887 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 United Airlines, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from Delta and Frontier, 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: Iberia (100%), Singapore Airlines (100%), Japan Airlines (87%).
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 $875. The most popular route, (Washington, D.C. Dulles Intl - Seattle/Tacoma Intl), can usually be booked for $248.
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

Renton

Lakewood

Ocean Shores

Lacey

Leavenworth

Federal Way

Olympia

Shoreline

Cle Elum

Centralia

Aberdeen

Kent

Lynnwood

Shelton

Silverdale

Redmond

Issaquah

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Top 10 airlines flying from District of Columbia to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$90	Average$258	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$131	Average$382	FlexibilityNo cancel fee	On-time62%
Hawaiian Airlines	Cheapest$143	Average$483	FlexibilityNo cancel fee	On-time85%
Sun Country Air	Cheapest$144	Average$362	FlexibilityNo cancel fee	On-time83%
Spirit Airlines	Cheapest$145	Average$263	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$206	Average$409	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$207	Average$448	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$254	Average$497	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$277	Average$453	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$306	Average$549	FlexibilityNo cancel fee	On-time63%

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$143+ 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 5/30. 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 April 17, 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 April 17, 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 April 17, 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 April 17, 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 Alaska Airlines, Southwest 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 April 17, 2025.