$85 Cheap Flights from Baltimore (BWI) to Seattle (SEA)

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

Cheap Flights from Baltimore to Seattle (BWI-SEA)

Prices were available within the past 7 days and start at $85 for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Southwest Airlines
American Airlines
American Airlines
Southwest Airlines
Southwest Airlines
Southwest Airlines
Delta
Delta
Alaska Airlines

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

February is typically the cheapest month to fly

From $164 - $397 per traveler.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA) cost?
Grab a cheap one-way flight from $85 or cheap return flight from $170 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
April is the cheapest month to fly from BWI to SEA. Avoiding peak travel times is often the key to scoring lower fares.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
If you're departing from Baltimore Washington Intl. Thurgood Marshall Airport (BWI), you can catch a nonstop flight to Seattle - Tacoma Intl. Airport (SEA) with Alaska Airlines.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline flying from BWI to SEA, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
On average, you can pick from 5 direct flights each week from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA). To increase your travel options, consider a flight with a layover. Enter your details on Expedia and then set the filters to include one or two stops.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
The 6 PM departures from BWI to SEA are the most sought after. Prices can be higher for these popular slots. If you're looking to save, choose a less crowded time to fly.
What day of the week has the most flights from BWI to SEA?
If you travel on a Friday, you'll get the widest range of options for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
Baltimore Washington Intl. Thurgood Marshall Airport (BWI)'s earliest flight to Seattle - Tacoma Intl. Airport (SEA) leaves at approximately 6:59PM UTC-5. With a total travel time of 6h 1m, you'll touch down at around 10:00PM UTC-8.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
Flights from BWI to SEA have an average travel time of 6 hours and 1 minute. The total distance between the two airports is 2,300 mi.
What airline has the least delays from BWI to SEA?
With 100% of journeys typically arriving as scheduled, Southwest Airlines has the best on-time performance for direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA). To check your flight status and get notifications about any changes, head to the Expedia App.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
To touch down at Seattle - Tacoma Intl. Airport (SEA) on time, pick a flight that leaves from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Seattle - Tacoma Intl. Airport (SEA) is the only airport in Seattle with direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Consider the available options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your plane ticket from BWI to SEA right before your getaway is typically more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a BWI to SEA flight and hotel package?
Compared with arranging hotels and flights separately, booking a BWI to SEA flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the hassle out of planning your trip. Simply secure your flights and select from our extensive range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your BWI to SEA flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$169
Distance
2328 mi
Average flight time
2 hours 49 mins

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