RM653 Cheap Flights from Seattle (SEA) to Baltimore (BWI)

View RM653 flight on Sat, 30 Aug 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Baltimore Washington Intl. Airport (BWI)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seattle to Baltimore (SEA-BWI)

Prices were available within the past 7 days and start at RM653 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Seattle (SEA) to Baltimore (BWI)

September is typically the cheapest month to fly

From RM 606 - RM 987 per traveller.

Graph displaying average flight prices per month

Seattle to Baltimore route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Distance
3725 km
Average flight time
8 hours 2 mins

Perfect flights from Seattle to Baltimore

Your Journey from Seattle to Baltimore

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Baltimore caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including American Airlines, Delta, United. Our selection of flights from Seattle - Tacoma Intl. to Baltimore Washington Intl. Thurgood Marshall caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 9 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Baltimore Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Baltimore Washington Intl. Thurgood Marshall that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from RM653 and roundtrip prices *.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Baltimore with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Baltimore

Picture yourself stepping off the plane in Baltimore and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Baltimore Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Baltimore.
 

Beyond the Flight – Exploring Baltimore

With Expedia, your adventure extends beyond the flight. Explore Baltimore at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Baltimore with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Baltimore with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from SEA to BWI?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey between Sea-Tac Airport and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) was . Cheap fares don't hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to BWI?
When it comes to cancellation fees, each airline has its own terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The flight distance between Sea-Tac Airport and BWI is 3,800 kilometres. Listen to your favourite tunes or read a good book and the journey will zip on by.
Which airlines fly direct from SEA to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Alaska Airlines (AS) will fly you from Sea-Tac Airport to BWI safely and comfortably. Choose from 30 flights every month along this route.
Are Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall last minute could save you some cash. However, it could end up costing you a whole lot more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

Explore a world of travel with Expedia

*Available to Expedia members.