Beginning of main content
Round Trip Icon
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5
Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

Change your flight without a fee on select flights

Feel at ease with free flight cancellations within 24 hours of booking

Amazing BWI to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $148 round trip and $66 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for BWI to SEA

Carrier Flight Depart BWI Arrive SEA Wed
1/27
Thu
1/28
Fri
1/29
Sat
1/30
Sun
1/31
Mon
2/1
Tue
2/2
Stops
AS 765 05:30 pm 08:23 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)

FAQs about flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)

Are there direct flights from BWI Marshall to Sea-Tac Airport?

Sometimes, it's the journey that counts; other times, the magic is in the destination. But if you just want to get to where you're headed fast, multiple airlines provide direct flights from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Seattle, WA (SEA-Seattle - Tacoma Intl.), including Alaska Airlines and Spirit Airlines.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Seattle, WA (SEA-Seattle - Tacoma Intl.), please visit our Customer Service Portal.

How long is the flight from BWI Marshall to Sea-Tac Airport?

If you're traveling from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you can expect the trip to take approximately 6 hours and 31 minutes. If this sounds longer than you'd hoped, why not take advantage of it? Read up on where you're headed, get some last-minute organizing done and have a nap before the adventure begins.

What is the flight distance from BWI Marshall to Sea-Tac Airport?

From Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Seattle, WA (SEA-Seattle - Tacoma Intl.), the flight distance is 2,548 mi. So, it's wise to have a good variety of entertainment to choose from. Books, movies, games ... whatever you're into. If you're adequately prepared, it won't feel like too long before you hear the call to prepare for landing.

What airlines fly from BWI Marshall to Sea-Tac Airport?

You have a choice of a number of airlines that fly direct between Baltimore and Seattle. Alaska Airlines (AS) is one of the most well-known. This carrier offers around 55 flights every month. You'll want to also pore through the deals on offer from Spirit Airlines (NK). Another well-known airline, it operates 22 flights each month on the Baltimore to Seattle route. Compare the two airlines to pick up the best fare.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl. Flight FAQ

Traveling FromBaltimore Washington Intl. Thurgood Marshall
Traveling ToSeattle - Tacoma Intl.
Shortest Flight Time5 hours 53 mins
Earliest Departure Time9:15AM EST
Latest Departure Time5:30PM EST
Lowest Flight Price$148

Route Info

Flight path for flights from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport


Distance:
2,342.00 miles


Airlines & Aircraft Used on BWI to SEA Flight Routes


Airline Carrier
Aircraft
American Airlines
Airbus A320-100/200
United Airlines
Airbus A320-100/200

Popular Flight Routes from Baltimore (BWI)

Travelers at BWI love to visit these top cities. Roam to the top destinations from Baltimore (BWI) today with the cheap prices from Travelocity!

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle(SEA) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.