Skyscanner home

Cheap Flights from Baltimore Washington International to Seattle / Tacoma International

Compare Baltimore Washington International to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

Book the best Seattle / Tacoma International fare with no extra fees

Flight deals from Baltimore Washington International to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Baltimore Washington International Airport to Seattle / Tacoma International Airport? If you want to travel next month, return fares start from Rs66,249. Find the lowest prices on one-way and return tickets right here.
Seattle.Rs27,362 per passenger.Departing Sat, 29 Aug.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Sat, 29 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs27,362, select.
Seattle.Rs28,643 per passenger.Departing Thu, 17 Sep.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Thu, 17 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs28,643, select.
Seattle.Rs30,056 per passenger.Departing Sat, 3 Oct.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Sat, 3 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs30,056, select.
Seattle.Rs30,144 per passenger.Departing Tue, 21 Jul.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Tue, 21 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs30,144, select.
Seattle.Rs30,161 per passenger.Departing Mon, 29 Jun.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 29 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs30,161, select.
Seattle.Rs30,190 per passenger.Departing Wed, 11 Nov.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Wed, 11 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs30,190, select.
Seattle.Rs30,210 per passenger.Departing Mon, 7 Dec.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Mon, 7 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs30,210, select.
Seattle.Rs39,960 per passenger.Departing Tue, 26 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Baltimore Washington International on Tue, 26 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs39,960, select.
Seattle.Rs46,088 per passenger.Departing Sat, 30 May.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Sat, 30 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs46,088, select.
Seattle.Rs46,670 per passenger.Departing Tue, 2 Jun.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Tue, 2 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs46,670, select.
Seattle.Rs55,443 per passenger.Departing Mon, 13 Jul.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Mon, 13 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs55,443, select.
Seattle.Rs63,274 per passenger.Departing Fri, 2 Oct.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Fri, 2 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs63,274, select.
Seattle.Rs63,434 per passenger.Departing Tue, 29 Dec.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Tue, 29 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs63,434, select.
Seattle.Rs64,088 per passenger.Departing Wed, 11 Nov.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Wed, 11 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs64,088, select.
Seattle.Rs91,718 per passenger.Departing Fri, 19 Mar.One-way flight with Delta.Outbound indirect flight with Delta, departs from Baltimore Washington International on Fri, 19 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs91,718, select.
Seattle.Rs120,636 per passenger.Departing Sat, 20 Mar.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Baltimore Washington International on Sat, 20 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rs120,636, select.

Find the cheapest month to fly from Baltimore Washington International to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Baltimore Washington International to Seattle / Tacoma International flights are currently cheapest in August.
May
from Rs39,960
Jun
from Rs30,161
Jul
from Rs30,144
Aug
from Rs27,362
Sep
from Rs28,643
Oct
from Rs30,056
Nov
from Rs30,190
Dec
from Rs30,210
Jan
Find prices
Feb
Find prices
Mar
from Rs91,718
Apr
Find prices

Direct flights from Baltimore Washington International to Seattle / Tacoma International

Baltimore Washington International to Seattle / Tacoma International: Alternative routes

Compare routes from Baltimore Washington International to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Seattle Lake Union SPB

2km from central Seattle
Closest
from Rs85,996
Search flights

Seattle Boeing Fld

11km from central Seattle
from Rs108,708
Search flights

Seattle / Tacoma International

20km from central Seattle
Cheapest
from Rs27,362
Search flights

Paine Field

33km from central Seattle
from Rs161,731
Search flights

Washington D.C. to Seattle: Flight information

The things to know before you go.
Cheapest flight foundRs27,362
Cheapest month to flyAugust
Average flight time5 hrs, 47 mins
Most popular airlineAlaska Airlines
Average flights per week18

Finding cheap flights from Baltimore Washington International to Seattle / Tacoma International: Frequently asked questions

The best price we found for a return flight from Baltimore Washington International to Seattle / Tacoma International is Rs38,940. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 47 minutes is the average flight time from Baltimore Washington International to Seattle / Tacoma International.
Alaska Airlines, Southwest Airlines and Finnair fly direct from Baltimore Washington International to Seattle / Tacoma International.
As of May 2026, there are 18 flights per week flying from Baltimore Washington International to Seattle / Tacoma International.
The cheapest month to fly from Baltimore Washington International to Seattle / Tacoma International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Baltimore Washington International Airport to Seattle / Tacoma International Airport on Wednesday, 2 September 2026.
Yes – the average flight time is 5 hours and 47 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
Currently, Southwest Airlines offers the cheapest flight tickets to Seattle / Tacoma International.

Flying from Baltimore/Wash International Thurgood Marshall Airport (BWI) to Seattle-Tacoma International Airport (SEA): what you need to know

  • The average duration of a direct flight from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport is 5 hours 45 minutes.

  • Seattle's timezone is UTC-7, making Seattle three hours behind Washington DC.

  • Flights from BWI to SEA start at 07:00 — the earliest with Alaska Airlines. The latest departure is at 18:59 with Alaska Airlines. In total, you can choose from 11 weekly Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport on time to board your BWI to SEA flight.

  • During popular months like July, it's a good idea to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead of an international flight whenever you're flying during a high season in general.

  • Alaska Airlines offers direct flights from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport. Book with this popular airline, then get ready to see the sights in Seattle — and maybe even more of United States if time allows.

  • Most travellers choose to fly with Alaska Airlines on this route.

  • The most punctual carrier offering BWI to SEA flights is Alaska Airlines. Its services arrive without delay 72.92% of the time.

  • Consider adding a stopover when booking your ticket from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport. Just deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Check out these options between BWI and SEA:

    • Lambert-St. Louis International Airport

    • Minneapolis-St. Paul International Airport

    • Chicago Midway International Airport

How to find the cheapest flights from Baltimore/Wash International Thurgood Marshall Airport (BWI) to Seattle-Tacoma International Airport (SEA)

  • Rs27,362 is currently the best price for a one-way Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport flight. Return flights start from Rs38,940. These prices can change based on demand.

  • Score cheap tickets from BWI to SEA by booking six months ahead. According to our research, that's the sweet spot for bagging a bargain.

  • Plan your trip for May. That's the cheapest month for flights from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport. If you have flexibility with your dates, try out the 'Whole month' tool to find the lowest airfare across every month.

  • You won't have to check every day to find out if fares have gone down when you create a Price Alert. We'll send you an update the moment a special offer becomes available on cheap flights from BWI to SEA.

  • Lock in the perfect flight for you with the help of the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and journey duration.

Handy information about Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • When it comes to the on-time performance of Baltimore/Wash International Thurgood Marshall Airport, data shows 77.13% of flights stick to their scheduled arrival time.

  • To get to Baltimore/Wash International Thurgood Marshall Airport from central Washington DC, it takes around 50 minutes by car. This depends on traffic, however. It's approximately 48 kilometres from the airport to the city centre.

  • The trip when using public transport usually takes 1 hour 30 minutes.

  • Get your holiday off to a stress-free start by staying near BWI. Whether you're boarding an early flight from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport or want to avoid feeling rushed, these stays are ideal:

Arriving at Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • From Seattle-Tacoma International Airport, Seattle is approximately 23 kilometres away. It takes around 20 minutes to get to the centre driving.

  • It takes roughly 55 minutes if you're using public transport.

When to fly to Seattle-Tacoma International Airport (SEA)

  • July is the most popular month for flights from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport. To steer clear of the crowds, head to Seattle in May.

  • Lock in your flight from Baltimore/Wash International Thurgood Marshall Airport to Seattle-Tacoma International Airport for August if you'd like to explore Seattle during its warmest month. Expect temperatures of between 12ºC and 28ºC.

  • For cooler conditions, look for a cheap ticket from BWI to SEA in February. Temperatures average between -1ºC and 11ºC then.

Explore more of United States

  • Portland is just one of the many cities in United States waiting to be explored once you've seen Seattle. Around 241 kilometres away to the south, its best attractions include Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

  • Around 370 kilometres east of Seattle, Spokane is another favourite stop in United States. No visit is complete without checking out Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.