HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Maryland

$138+ Cheap flights from Seattle (SEA) to Maryland

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BWI
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Maryland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Seattle to Maryland

Keep the following information in mind while searching for Seattle to Maryland flight deals. Data was last updated July 31, 2025.

Round-trip from

$207
(Delta)

One-way from

$138
(Southwest)

Popular in

December

Cheapest in

September

Average price

$381

Good round-trip deal

$304 or less

Good one-way deal

$228 or less
From Seattle/Tacoma Intl to Maryland
Search Deals
One-way flight from Seattle/Tacoma Intl to Maryland
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Maryland.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Maryland.
Search Deals

Find flight deals from Seattle to Maryland

Cheapest flights from Seattle to Maryland
Explore the most affordable flight options available from Seattle to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/245:45 pmSEA - BWI
1 stop9h 15mDelta
Sat 10/117:15 amBWI - SEA
1 stop8h 32mDelta
Deal found 7/29$207
This American Airlines deal was found by Cheapflights users on 7/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/305:35 amSEA - BWI
1 stop10h 02mAmerican Airlines
Sat 9/611:04 amBWI - SEA
2 stops11h 05mAmerican Airlines
Deal found 7/31$238
This SmartFares deal was found by Cheapflights users on 7/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/129:29 pmSEA - BWI
Nonstop5h 10mAlaska Airlines
Fri 9/197:37 pmBWI - SEA
Nonstop5h 50mAlaska Airlines
Deal found 7/29$251
This KAYAK deal was found by Cheapflights users on 7/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:29 pmSEA - BWI
Nonstop5h 10mHawaiian Airlines
Sun 9/217:00 amBWI - SEA
Nonstop5h 40mHawaiian Airlines
Deal found 7/29$253
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:00 amSEA - DCA
1 stop11h 59mFrontier
Sat 9/201:00 pmDCA - SEA
1 stop10h 39mFrontier
Deal found 7/30$256
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:25 amSEA - DCA
Nonstop5h 05mDelta
Sat 9/204:59 pmDCA - SEA
Nonstop5h 41mDelta
Deal found 7/31$257
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/309:55 pmSEA - IAD
Nonstop5h 00mDelta
Sat 9/67:35 amIAD - SEA
Nonstop5h 45mDelta
Deal found 7/31$257
This BYOjet deal was found by Cheapflights users on 7/30. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:00 amSEA - DCA
1 stop10h 59mHawaiian Airlines
Sat 9/205:06 pmDCA - SEA
Nonstop5h 50mHawaiian Airlines
Deal found 7/30$261
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/304:20 pmSEA - IAD
Nonstop5h 00mHawaiian Airlines
Sat 9/67:00 amIAD - SEA
Nonstop5h 40mHawaiian Airlines
Deal found 7/29$263
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 9/135:35 pmSEA - IAD
1 stop8h 49mUnited Airlines
Sat 9/201:05 pmIAD - SEA
Nonstop5h 46mUnited Airlines
Deal found 7/31$267
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 9/2011:30 pmSEA - IAD
Nonstop5h 03mAlaska Airlines
Sun 9/219:00 amIAD - SEA
Nonstop5h 43mAlaska Airlines
Deal found 7/31$271
This Southwest deal was found by Cheapflights users on 7/31. 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 9/175:35 amSEA - BWI
2 stops8h 55mSouthwest
Sun 9/219:30 amBWI - SEA
Nonstop5h 45mSouthwest
Deal found 7/31$272

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Maryland 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 31, 2025.
Use the filters below to find and compare flights from Seattle to Maryland that are best for you.

Fly from

Seattle

Fly to

Maryland

Route

Depart

Return

Price

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 9/24

5:45 pm-6:00 am

1 stop9h 15m

Baltimore/Washington

Sat 10/11

7:15 am-12:47 pm

1 stop8h 32m

$207

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 8/30

5:35 am-6:37 pm

1 stop10h 02m

Baltimore/Washington

Sat 9/6

11:04 am-7:09 pm

2 stops11h 05m

$238

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Fri 9/12

9:29 pm-5:39 am

Nonstop5h 10m

Baltimore/Washington

Fri 9/19

7:37 pm-10:27 pm

Nonstop5h 50m

$251

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 9/17

9:29 pm-5:39 am

Nonstop5h 10m

Baltimore/Washington

Sun 9/21

7:00 am-9:40 am

Nonstop5h 40m

$253

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Sat 9/13

7:00 am-9:59 pm

1 stop11h 59m

Washington, D.C. Reagan-National

Sat 9/20

1:00 pm-8:39 pm

1 stop10h 39m

$256

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Sat 9/13

7:25 am-3:30 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Tue 9/16

4:59 pm-7:40 pm

Nonstop5h 41m

$257

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 8/30

11:30 pm-7:32 am

Nonstop5h 02m

Washington, D.C. Dulles Intl

Wed 9/3

6:09 pm-8:56 pm

Nonstop5h 47m

$257

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Sat 9/13

7:00 am-8:59 pm

1 stop10h 59m

Washington, D.C. Reagan-National

Sat 9/20

5:06 pm-7:56 pm

Nonstop5h 50m

$261

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 8/30

4:20 pm-12:20 am

Nonstop5h 00m

Washington, D.C. Dulles Intl

Sat 9/6

7:00 am-9:40 am

Nonstop5h 40m

$263

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 9/13

5:35 pm-5:24 am

1 stop8h 49m

Washington, D.C. Dulles Intl

Sat 9/20

1:05 pm-3:51 pm

Nonstop5h 46m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Seattle to Maryland

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

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

Currently, August is the cheapest month in which you can book a flight from Seattle to Maryland (average of $241). Flying from Seattle to Maryland in March is currently the most expensive (average of $290). 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 SEA to MD?

Find hourly flight availability from Seattle to Maryland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

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

Weekly flight availability from Seattle to Maryland

Explore weekly flight availability from Seattle to Maryland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from SEA to USMD are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Maryland

Get insights into the airlines that provide service to Maryland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maryland. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Seattle to Maryland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Maryland. 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 from for flights from Seattle to Maryland?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Maryland from Seattle.

  • How popular is this Seattle to Maryland flight route?

    The Seattle/Tacoma Intl to Maryland flight path was viewed by 17 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $138. Users have also found prices from $139 and $140 on United Airlines and Delta, respectively.

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

    While some choose either Seattle/Tacoma Intl - Baltimore/Washington or Seattle/Tacoma Intl - Washington, D.C. Reagan-National, Seattle/Tacoma Intl - Philadelphia is the most popular route from Seattle to Maryland.

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

    Consider Southwest (88%), Alaska Airlines (75%) or Hawaiian Airlines (75%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Maryland.

  • What are the cheapest flights from Seattle to Maryland?

    While on average a flight from Seattle to Maryland is generally $328, our data shows the cheapest flight currently is $133. When looking at the most popular route, (Seattle/Tacoma Intl - Philadelphia), you can expect to pay $265 for that flight.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Seattle to Maryland (average of $241). Flying from Seattle to Maryland in March is currently the most expensive (average of $290). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Maryland

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to San Francisco flights
Seattle to Las Vegas flights
Seattle to O'Hare Intl flights
Seattle to Los Angeles flights
Seattle to Dallas/Fort Worth flights
Seattle to John F Kennedy Intl flights
Seattle to Honolulu flights
Seattle to San Diego flights
Seattle to Hobby flights
Seattle to Newark flights
Seattle to George Bush Intcntl flights
Portland to Los Angeles flights
Seattle to Denver flights
Seattle to LaGuardia flights
Seattle to Ontario flights
Seattle to Santa Ana flights
Seattle to Boston flights
Seattle to Sky Harbor Intl flights
Seattle to Detroit flights
Seattle to Philadelphia flights
Seattle to Atlanta flights
Seattle to Baltimore flights
Portland to Newark flights
Seattle to San Jose flights
Seattle to Orlando flights
Seattle to Kahului flights
Portland to O'Hare Intl flights
Seattle to Minneapolis flights
Seattle to Reagan-National flights
Seattle to Dulles Intl flights
Portland to Santa Ana flights
Portland to Las Vegas flights
Portland to Honolulu flights
Portland to San Francisco flights
Everett to Las Vegas flights
Portland to Boston flights
Seattle to Miami flights
Seattle to Kailua-Kona flights
Portland to Dallas/Fort Worth flights
Seattle to Nashville flights
Portland to Burbank flights
Portland to San Diego flights
Seattle to New Orleans flights
Portland to John F Kennedy Intl flights
Seattle to Love Field flights
Seattle to Milwaukee flights
Seattle to Burbank flights
Seattle to Tampa flights
Everett to Los Angeles flights
Seattle to Anchorage flights

Top 8 airlines flying from Seattle to Maryland

Discover the top 8 airlines that operate flights from Seattle to Maryland. 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$139Average$194FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$178Average$276FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$188Average$431FlexibilityNo cancel feeOn-time85%
DeltaCheapest$204Average$356FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$206Average$600FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$262Average$390FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$276Average$468FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$286Average$441FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.