Baltimore

$126+ Cheap flights from Seattle to Baltimore (SEA - BWI)

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BWI
Apr 18 — Apr 251
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Baltimore/Washington are usually found in October or September, booked 85 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Seattle to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Baltimore (BWI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$258
(Mytrip)

One-way from

$126
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$416
Provider with most accurate pricing for Seattle/Tacoma Intl-Baltimore/Washington flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Baltimore/Washington flights.
From Seattle/Tacoma Intl to Baltimore/Washington
One-way flight from Seattle/Tacoma Intl to Baltimore/Washington
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in April 2025

Find flight deals from Seattle to Baltimore

Cheapest flights from Seattle to Baltimore
Explore the most affordable flight options available from Seattle to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 13, 2025.

This Mytrip deal was found by Cheapflights users on 4/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/203:20 pmSEA - BWI
1 stop11h 50mSpirit Airlines
Wed 5/288:44 pmBWI - SEA
2 stops20h 41mSpirit Airlines
Deal found 4/12$258
This Expedia deal was found by Cheapflights users on 4/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/113:20 pmSEA - BWI
1 stop11h 50mMultiple Airlines
Wed 5/147:05 pmBWI - SEA
Nonstop5h 40mMultiple Airlines
Deal found 4/12$266
This Delta deal was found by Cheapflights users on 4/12. 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.
Tue 5/279:30 pmSEA - BWI
1 stop8h 40mDelta
Tue 6/311:32 amBWI - SEA
1 stop8h 28mDelta
Deal found 4/12$269
This Surpr!ce deal was found by Cheapflights users on 4/11. 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 Surpr!ce is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2710:27 pmSEA - BWI
Nonstop5h 02mHawaiian Airlines
Tue 6/37:05 pmBWI - SEA
Nonstop5h 55mHawaiian Airlines
Deal found 4/11$272
This Alaska Airlines deal was found by Cheapflights users on 4/12. 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 5/2710:27 pmSEA - BWI
Nonstop5h 02mAlaska Airlines
Tue 6/37:05 pmBWI - SEA
Nonstop5h 55mAlaska Airlines
Deal found 4/12$277
This Southwest deal was found by Cheapflights users on 4/13. 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.
Thu 6/59:10 pmSEA - BWI
Nonstop5h 00mSouthwest
Mon 6/96:55 pmBWI - SEA
1 stop8h 55mSouthwest
Deal found 4/13$297
This CheapOair deal was found by Cheapflights users on 4/12. 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 6/67:12 pmSEA - BWI
1 stop18h 23mFrontier
Sun 6/88:44 pmBWI - SEA
1 stop14h 40mFrontier
Deal found 4/12$300
This American Airlines deal was found by Cheapflights users on 4/13. 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 5/311:54 amSEA - BWI
2 stops9h 30mAmerican Airlines
Tue 5/610:53 amBWI - SEA
1 stop9h 53mAmerican Airlines
Deal found 4/13$357
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Tue 5/2711:50 pmSEA - BWI
1 stop7h 23mUnited Airlines
Tue 6/35:30 pmBWI - SEA
1 stop8h 12mUnited Airlines
Deal found 4/12$397
This FlightHub deal was found by Cheapflights users on 4/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/286:24 pmSEA - BWI
1 stop13h 59mSun Country Air
Mon 6/3012:19 pmBWI - SEA
1 stop13h 31mSun Country Air
Deal found 4/12$405

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Baltimore 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 April 13, 2025.
Use the filters below to find and compare flights from Seattle to Baltimore that are best for you.

Fly from

Seattle

Fly to

Baltimore

Route

Depart

Return

Price

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 5/20

3:20 pm-6:10 am

1 stop11h 50m

Baltimore/Washington

Wed 5/28

8:44 pm-2:25 pm

2 stops20h 41m

$258

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 5/28

10:27 pm-6:29 am

Nonstop5h 02m

Baltimore/Washington

Wed 6/4

7:17 am-2:25 pm

1 stop10h 08m

$261

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 5/27

9:30 pm-9:10 am

1 stop8h 40m

Baltimore/Washington

Tue 6/3

11:32 am-5:00 pm

1 stop8h 28m

$269

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 5/27

10:27 pm-6:29 am

Nonstop5h 02m

Baltimore/Washington

Tue 6/3

7:05 pm-10:00 pm

Nonstop5h 55m

$272

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 5/27

10:27 pm-6:29 am

Nonstop5h 02m

Baltimore/Washington

Tue 6/3

7:05 pm-10:00 pm

Nonstop5h 55m

$277

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Fri 6/6

7:12 pm-4:35 pm

1 stop18h 23m

Baltimore/Washington

Sun 6/8

8:44 pm-8:24 am

1 stop14h 40m

$300

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Mon 9/8

3:19 pm-5:25 am

2 stops11h 06m

Baltimore/Washington

Fri 9/12

5:11 pm-10:28 pm

1 stop8h 17m

$304

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 7/9

9:10 pm-5:10 am

Nonstop5h 00m

Baltimore/Washington

Sun 7/27

8:20 pm-12:55 am

1 stop7h 35m

$332

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 5/3

11:54 am-12:24 am

2 stops9h 30m

Baltimore/Washington

Tue 5/6

10:53 am-5:46 pm

1 stop9h 53m

$357

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 6/28

6:24 pm-11:23 am

1 stop13h 59m

Baltimore/Washington

Mon 6/30

12:19 pm-10:50 pm

1 stop13h 31m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/12

Showing 1-10 of 20 results
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Compare providers for flights from Seattle to Baltimore

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Baltimore in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
FareScanPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Baltimore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Baltimore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Baltimore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Baltimore flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Baltimore flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore 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 Baltimore

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Baltimore. Price data was last updated on April 4, 2025.

The best time to book flights from Seattle to Baltimore is 85 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.

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

Currently, August is the cheapest month in which you can book a flight from Seattle to Baltimore (average of $241). Flying from Seattle to Baltimore 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 BWI?

Find hourly flight availability from Seattle to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 13, 2025.

One of the essential ways to save on airfare from Seattle to Baltimore is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 29% on airfare.

What is the cheapest day to fly from Seattle to Baltimore?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Baltimore. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Seattle to Baltimore flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Baltimore by month

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

In terms of precipitation, rainfall in Baltimore ranges from 2.9 - 4.1 inches per month. July is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Baltimore when rainfall is around 2.9 in.

Temperature in Baltimore by month

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

If weather is an important factor for your trip to Baltimore, 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 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated April 13, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Seattle to Baltimore to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
8.0
Very good

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to Baltimore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Seattle to Baltimore?

    Baltimore/Washington is the airport most travelers will use when flying to Baltimore from Seattle/Tacoma Intl. Booking flights from Seattle/Tacoma Intl (SEA) to Baltimore/Washington (BWI) should be relatively easy as there is 1 daily flight to Baltimore from 8 different airlines. 4h 59m is how long a flight from Seattle to Baltimore/Washington will take if you book a nonstop flight.

  • How popular is this Seattle to Baltimore flight route?

  • What are the cheapest airlines flying from Seattle to Baltimore round-trip?

    Cheapflights users have booked flights from Seattle to Baltimore round-trip from $258. Other airlines that can offer you cheap pricing are Delta, from $269, and Hawaiian Airlines, from $272. Spirit Airlines is priced at 39% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Seattle to Baltimore are Spirit Airlines ($126), Delta ($130), and Alaska Airlines ($139).

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

    No one likes to see their flight delayed. When booking a flight from Seattle to Baltimore consider choosing Alaska Airlines (84%), Air Tahiti Nui (84%) or Hawaiian Airlines (79%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Baltimore?

    Looking for the cheapest flight from Seattle to Baltimore? While on average our users pay $623, our data indicates the cheapest price to be $149. The most popular route (Seattle/Tacoma Intl - Baltimore/Washington), is priced around $203.

  • Where are the most common layover locations when flying from Seattle to Baltimore?

  • What are some popular things to do or see while on a layover in Charlotte?

    If you're on a layover in Charlotte and looking for things to do, consider visiting Carowind, Mint Museum Uptown, or North Carolina Blumenthal Performing Arts Center. Carowind, Mint Museum Uptown, and North Carolina Blumenthal Performing Arts Center can be visited by traveling about 8.2 mi, 5.4 mi, and 5.8 mi respectively from Charlotte Douglas. Travelers can rent a car at Charlotte Douglas for an average daily rate of $52 to make sightseeing during their layover a little easier.

  • What are some popular points of interest to see during a layover in Denver?

    Coors Field, Paramount Theatre, and 16th Street Mall are currently the most popular points of interest in Denver at the moment. Travelers on a layover in Denver can visit Coors Field, Paramount Theatre, and 16th Street Mall, by traveling 18.4 mi, 18.6 mi, and 18.7 mi, respectively after landing at Denver Intl. Those on a layover in Denver in need of a rental car can book one at Denver Intl for about $45.

  • Where are the least popular layover locations for Seattle to Baltimore flights?

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Seattle to Baltimore (average of $241). Flying from Seattle to Baltimore 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

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Top 8 airlines flying from Seattle to Baltimore

Discover the top 8 airlines that operate flights from Seattle to Baltimore. 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 April 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$194FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$178Average$267FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$179Average$437FlexibilityNo cancel feeOn-time85%
DeltaCheapest$196Average$337FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$206Average$379FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$262Average$404FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$276Average$490FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$296Average$478FlexibilityNo cancel feeOn-time63%

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