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$84+ Cheap flights from Maryland 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SEA
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheap flight deals from Maryland to Seattle

Cheapest flights from Maryland to Seattle
Explore the most affordable flight options available from Maryland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:00 pm
DCA
-
SEA
Nonstop5h 51m
Multiple Airlines
Sun 9/137:00 am
SEA
-
DCA
1 stop26h 49m
Multiple Airlines
Deal found 7/22$293
This Kiwi.com deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:00 pm
DCA
-
SEA
Nonstop5h 51m
Multiple Airlines
Mon 9/287:00 am
SEA
-
DCA
1 stop11h 58m
Multiple Airlines
Deal found 7/22$294
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:03 am
IAD
-
SEA
Nonstop5h 36m
Alaska Airlines
Sat 9/263:56 pm
SEA
-
IAD
Nonstop5h 03m
Alaska Airlines
Deal found 7/22$295
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:27 pm
DCA
-
SEA
1 stop8h 12m
Alaska Airlines
Wed 9/231:46 pm
SEA
-
DCA
Nonstop5h 13m
Alaska Airlines
Deal found 7/22$295
This CheapOair deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:59 pm
DCA
-
SEA
1 stop22h 20m
Frontier
Tue 8/257:06 pm
SEA
-
DCA
1 stop14h 45m
Frontier
Deal found 7/22$296
This CheapOair deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:00 pm
DCA
-
SEA
1 stop22h 51m
Frontier
Fri 10/237:41 pm
SEA
-
DCA
1 stop18h 15m
Frontier
Deal found 7/22$297
This Orbitz deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/168:00 am
DCA
-
SEA
Nonstop5h 54m
Multiple Airlines
Sun 9/207:41 pm
SEA
-
DCA
1 stop14h 08m
Multiple Airlines
Deal found 7/21$298
This United Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 pm
IAD
-
SEA
Nonstop5h 54m
United Airlines
Sat 8/299:05 am
SEA
-
IAD
1 stop10h 14m
United Airlines
Deal found 7/22$299
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:35 pm
IAD
-
SEA
1 stop16h 45m
Alaska Airlines
Fri 9/119:35 pm
SEA
-
IAD
Nonstop5h 05m
Alaska Airlines
Deal found 7/22$300
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:00 am
DCA
-
SEA
Nonstop5h 54m
Alaska Airlines
Tue 9/18:00 am
SEA
-
DCA
Nonstop5h 20m
Alaska Airlines
Deal found 7/22$300
This Southwest deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:40 pm
DCA
-
SEA
2 stops16h 55m
Southwest
Mon 9/147:25 pm
SEA
-
DCA
2 stops10h 25m
Southwest
Deal found 7/22$301
This United Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:13 am
IAD
-
SEA
1 stop8h 19m
United Airlines
Sat 9/2611:14 pm
SEA
-
IAD
Nonstop5h 03m
United Airlines
Deal found 7/21$302

Find flight deals from Maryland to Seattle

Keep the following information in mind while searching for Maryland to Seattle flight deals. Data was last updated July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$293
(Trip.com)

One-way from

$84
(Southwest)

Popular in

July

Cheapest in

February

Average price

$520

Good round-trip deal

$451 or less

Good one-way deal

$322 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Seattle/Tacoma Intl flights.
Search Deals
From Maryland to Seattle/Tacoma Intl
Search Deals
One-way flight from Maryland to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Maryland to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Maryland to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Maryland to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 23, 2026.
Use the filters below to find and compare flights from Maryland to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sun 9/20

6:13 am-11:32 am

1 stop8h 19m

Seattle/Tacoma Intl

Mon 9/28

11:14 pm-7:17 am

Nonstop5h 03m

$299

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 9/9

10:41 am-4:07 pm

1 stop8h 26m

Seattle/Tacoma Intl

Sat 9/19

1:57 pm-12:44 am

1 stop7h 47m

$304

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Mon 9/21

7:47 pm-9:20 am

1 stop16h 33m

Seattle/Tacoma Intl

Sat 9/26

9:35 pm-5:40 am

Nonstop5h 05m

$305
Quickest round-trip

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Wed 9/9

4:45 pm-7:25 pm

Nonstop5h 40m

Seattle/Tacoma Intl

Sat 9/12

7:20 am-3:32 pm

Nonstop5h 12m

$305

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sat 8/29

10:35 am-4:10 pm

1 stop8h 35m

Seattle/Tacoma Intl

Wed 9/2

7:00 am-5:37 pm

1 stop7h 37m

$309

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Mon 9/21

4:45 pm-7:25 pm

Nonstop5h 40m

Seattle/Tacoma Intl

Sun 9/27

7:20 am-3:32 pm

Nonstop5h 12m

$315

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 10/16

6:41 pm-9:41 pm

Nonstop6h 00m

Seattle/Tacoma Intl

Mon 10/19

9:29 pm-5:41 am

Nonstop5h 12m

$329

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Thu 9/10

4:35 pm-11:55 pm

2 stops10h 20m

Seattle/Tacoma Intl

Mon 9/14

7:25 pm-8:50 am

2 stops10h 25m

$335

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Thu 8/27

3:58 pm-11:57 pm

1 stop10h 59m

Seattle/Tacoma Intl

Fri 9/4

9:30 pm-5:50 am

Nonstop5h 20m

$339

PhiladelphiaSeattle

PHL - SEA

PHLSEA

Philadelphia

Fri 10/9

7:00 am-9:58 am

Nonstop5h 58m

Seattle/Tacoma Intl

Mon 10/12

11:50 pm-10:49 am

1 stop7h 59m

$339

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Maryland to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Maryland 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 Maryland to Seattle

What is the cheapest month to book a flight from Maryland to Seattle?

Currently, February is the cheapest month in which you can book a flight from Maryland to Seattle (average of $298). Flying from Maryland to Seattle in June is currently the most expensive (average of $534). 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 MD to SEA?

Find hourly flight availability from Maryland 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 July 23, 2026.

It’s typically best to fly out from Maryland to Seattle in the evening. Doing so could potentially save you 35% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Maryland to Seattle?

How far ahead should I book a flight from Maryland to Seattle?

The best time to book flights from Maryland to Seattle is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Maryland 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 Maryland?

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

  • How popular is this Maryland to Seattle flight route?

    This flight path from Maryland to Seattle/Tacoma Intl was viewed by 22 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Maryland to Seattle?

    Departing from Maryland to Seattle will take you 5h 40m. The distance between Maryland and Seattle is about 2321 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Maryland to Seattle one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $79. Southwest flights start at $89 while deals on Delta start at $98 one-way.

  • What are the most popular routes from Maryland to Seattle?

    When deciding which route to take from Maryland to Seattle consider Washington, D.C. Dulles Intl - Seattle/Tacoma Intl, Washington, D.C. Reagan-National - Seattle/Tacoma Intl or Baltimore/Washington - Seattle/Tacoma Intl as they are the most popular.

  • What are the most reliable airlines from Maryland to Seattle?

    The top 3 most reliable airlines when flying from Maryland to Seattle are Finnair (86%), Alaska Airlines (78%) and Southwest (56%).

  • What are the cheapest flights from Maryland to Seattle?

    On average you can expect to pay $498 for a flight from Maryland to Seattle. The cheapest flight overall is $188 while the most popular route, (Washington, D.C. Dulles Intl - Seattle/Tacoma Intl) is currently priced at $255.

  • Can I find deals for flights from Maryland to Seattle that include hotel bookings?

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

  • How can I find direct flights from Maryland to Seattle?

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

  • Can I find deals for business class flights from Maryland to Seattle?

    Yes. Cheapflights offers flight deals from Maryland 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 Maryland to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Maryland to Seattle (average of $298). Flying from Maryland to Seattle in June is currently the most expensive (average of $534). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah

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Alternative routes for Maryland to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Maryland to Seattle

Discover the top 9 airlines that operate flights from Maryland to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$99Average$299FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$148Average$377FlexibilityNo cancel feeOn-time85%
FrontierCheapest$168Average$286FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$179Average$366FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$219Average$369FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$228Average$398FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$234Average$472FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$261Average$456FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$295Average$465FlexibilityNo cancel feeOn-time83%

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