$74 Cheap Flights from Baltimore to Seattle

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Find The Best Dates To Fly from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl.

Amazing BWI to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $148 round trip and $74 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Nov 1 - Wed, Nov 15
BWI
Baltimore
SEA
Seattle
$148 Roundtrip, found 2 hours ago
$148
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, Nov 1 from Baltimore to Seattle, returning Wed, Nov 15, priced at $148 found 2 hours ago
Tue, Oct 17 - Tue, Oct 31
BWI
Baltimore
SEA
Seattle
$153 Roundtrip, found 8 hours ago
$153
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Tue, Oct 17 from Baltimore to Seattle, returning Tue, Oct 31, priced at $153 found 8 hours ago
Fri, Oct 20 - Wed, Nov 1
BWI
Baltimore
SEA
Seattle
$158 Roundtrip, found 8 hours ago
$158
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, Oct 20 from Baltimore to Seattle, returning Wed, Nov 1, priced at $158 found 8 hours ago
Fri, Oct 20 - Tue, Oct 31
BWI
Baltimore
SEA
Seattle
$163 Roundtrip, found 8 hours ago
$163
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, Oct 20 from Baltimore to Seattle, returning Tue, Oct 31, priced at $163 found 8 hours ago
Sun, Nov 5 - Tue, Nov 14
BWI
Baltimore
SEA
Seattle
$167 Roundtrip, found 3 days ago
$167
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sun, Nov 5 from Baltimore to Seattle, returning Tue, Nov 14, priced at $167 found 3 days ago
Fri, Nov 3 - Sun, Nov 5
BWI
Baltimore
SEA
Seattle
$168 Roundtrip, found 3 days ago
$168
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Nov 3 from Baltimore to Seattle, returning Sun, Nov 5, priced at $168 found 3 days ago
Fri, Oct 20 - Fri, Oct 27
BWI
Baltimore
SEA
Seattle
$172 Roundtrip, found 2 days ago
$172
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Oct 20 from Baltimore to Seattle, returning Fri, Oct 27, priced at $172 found 2 days ago
Fri, Sep 29 - Tue, Oct 17
BWI
Baltimore
SEA
Seattle
$177 Roundtrip, found 1 hour ago
$177
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Sep 29 from Baltimore to Seattle, returning Tue, Oct 17, priced at $177 found 1 hour ago
Sat, Oct 7 - Mon, Nov 6
BWI
Baltimore
SEA
Seattle
$181 Roundtrip, found 2 days ago
$181
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Oct 7 from Baltimore to Seattle, returning Mon, Nov 6, priced at $181 found 2 days ago
Fri, Nov 3 - Sun, Nov 19
BWI
Baltimore
SEA
Seattle
$187 Roundtrip, found 8 hours ago
$187
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Fri, Nov 3 from Baltimore to Seattle, returning Sun, Nov 19, priced at $187 found 8 hours ago

Flight Schedule for BWI to SEA

CarrierFlightDepart BWIArrive SEASun
9/24		Mon
9/25		Tue
9/26		Wed
9/27		Thu
9/28		Fri
9/29		Sat
9/30		Stops
AS48307:45 am10:34 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS37906:25 pm09:09 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops

Frequently asked questions

Can I catch a flight from BWI Marshall to Sea-Tac Airport right now?
It’s prudent to find out about any quarantine requirements and travel advice reports in effect in your destination. Be sure to go to our Covid-19 Travel Advisor for up-to-date information on flying to SEA from BWI Marshall.
Are there direct flights from BWI to Seattle - Tacoma Intl. Airport (SEA)?
If you’d prefer to avoid layovers, it’s smart to arrange your flight from BWI to Sea-Tac Airport well in advance of your departure. Alaska Airlines is the only airline that operates nonstop flights to Seattle from Baltimore.
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 - Tacoma Intl. Airport (SEA), please visit our Customer Service Portal.
How long is the flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
If you’re flying from BWI to SEA, you can expect the journey to take about 8 hours and 7 minutes. If this is longer than you had hoped, why not take advantage of it? Read up on where you’re headed, work on your itinerary and take a decent nap before the adventure begins.
What is the flight distance from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Seattle - Tacoma Intl. Airport (SEA)?
You’ll need to travel about 2,300 mi from BWI to Seattle - Tacoma Intl. Airport (SEA) before you can officially start those adventures you have planned. Get a beverage when the drink cart rolls by and settle in for a couple of your favorite TV shows. You’ll have lots of time!
What airlines fly from BWI Marshall to Seattle - Tacoma Intl. Airport (SEA)?
Hoping to fly directly from BWI Airport to Sea-Tac Airport? It’s your lucky day. Alaska Airlines (AS) offers as many as 30 flights every month and is a popular choice with many wise wanderers.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Alaska Airlines, Delta or Southwest Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that 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 2021, flights departing on a Monday 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 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Baltimore Washington Intl. Thurgood Marshall
Traveling To
Seattle - Tacoma Intl.
Shortest Flight Time
5 hours 44 mins
Earliest Departure Time
7:45AM EDT
Latest Departure Time
6:25PM EDT
Lowest Flight Price
$148

Route Info

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


Origin:
BWI - Baltimore/Wash International Thurgood Marshall Airport
Destination:
SEA - 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

Discover our best flights from Baltimore BWI to Seattle SEA. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Baltimore BWI to Seattle SEA at the right price  

Airfares to Seattle SEA from Baltimore BWI currently cost between $148 and $187. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Baltimore BWI to Seattle SEA 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Baltimore BWI to Seattle SEA on Travelocity starting at $74. Prices and availability subject to change. Additional terms may apply. 

 

Get to Seattle SEA from Baltimore BWI quicker with direct flights. 

Get to Seattle faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SEA from BWI to take around 5 hour(s) 44 min(s).  

 

Find our cheapest airfares for flights from Baltimore BWI to Seattle SEA

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SEA from BWI. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Baltimore BWI to Seattle SEA today 

If you’re flexible about when you travel, November is usually the cheapest month to fly from Baltimore BWI to Seattle SEA. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Seattle SEA from Baltimore BWI 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to SEA from BWI have this option.  

 

Travel with confidence when you book flights to Seattle SEA from Baltimore BWI with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*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.