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$69+ Cheap flights from Baltimore to Seattle (BWI - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SEA
Dec 26 — Jan 21
Thu 12/26
Thu 1/2
1 adult, Economy
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The best prices from Baltimore/Washington to Seattle/Tacoma Intl are usually found in February or October, booked 77 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from Baltimore to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Alaska Airlines)

One-way from

$69
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$517
Provider with most accurate pricing for Baltimore/Washington-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Seattle/Tacoma Intl flights.
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From Baltimore/Washington to Seattle/Tacoma Intl
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One-way flight from Baltimore/Washington to Seattle/Tacoma Intl
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High demand for flights, 11% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Baltimore to Seattle

Cheapest flights from Baltimore to Seattle
Explore the most affordable flight options available from Baltimore to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2024.

This American Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/253:20 pmBWI - SEA
1 stop8h 58mAmerican Airlines
Wed 1/291:43 pmSEA - BWI
1 stop7h 35mAmerican Airlines
Deal found 12/20$427
This Delta deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/243:10 pmBWI - SEA
1 stop8h 36mDelta
Tue 1/146:00 amSEA - BWI
1 stop7h 48mDelta
Deal found 12/20$431
This United deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/244:02 pmBWI - SEA
1 stop8h 08mUnited Airlines
Tue 1/149:00 amSEA - BWI
2 stops8h 48mUnited Airlines
Deal found 12/20$536
This Mytrip deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/248:54 amBWI - SEA
2 stops28h 41mMultiple Airlines
Tue 1/76:11 amSEA - BWI
1 stop9h 32mMultiple Airlines
Deal found 12/19$574
This Southwest deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/238:30 amBWI - SEA
2 stops11h 50mSouthwest
Sat 1/46:10 pmSEA - BWI
1 stop14h 00mSouthwest
Deal found 12/20$581
This Netflights deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:57 pmBWI - SEA
Nonstop6h 03mAlaska Airlines
Wed 1/299:52 amSEA - BWI
Nonstop5h 07mAlaska Airlines
Deal found 12/20$622
This eDestinos deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/253:27 pmBWI - SEA
2 stops24h 43mFrontier
Wed 1/18:25 pmSEA - BWI
2 stops35h 47mFrontier
Deal found 12/20$623
This Cheapflightsfares deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/275:30 amBWI - SEA
1 stop19h 53mSpirit Airlines
Fri 1/36:11 amSEA - BWI
1 stop9h 15mSpirit Airlines
Deal found 12/20$641

Find flights from Baltimore to Seattle within your budget

Customize your flight search to find flights from Baltimore to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Wed 4/16

7:03 pm-10:00 pm

Nonstop5h 57m

Seattle/Tacoma Intl

Tue 4/22

9:45 pm-5:45 am

Nonstop5h 00m

$257

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Tue 2/18

10:48 am-12:25 am

2 stops16h 37m

Seattle/Tacoma Intl

Thu 2/20

5:15 am-7:50 pm

1 stop11h 35m

$258

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Wed 1/29

10:37 am-12:19 am

1 stop16h 42m

Seattle/Tacoma Intl

Sun 2/2

9:52 am-5:59 pm

Nonstop5h 07m

$259

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Tue 1/21

5:00 am-12:41 pm

1 stop10h 41m

Seattle/Tacoma Intl

Mon 1/27

1:43 pm-12:18 am

1 stop7h 35m

$261

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Sat 1/18

12:00 pm-6:27 pm

1 stop9h 27m

Seattle/Tacoma Intl

Mon 1/27

11:05 pm-11:46 am

1 stop9h 41m

$282

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Sat 1/18

12:25 pm-9:25 pm

2 stops12h 00m

Seattle/Tacoma Intl

Sat 1/25

6:30 am-7:20 pm

2 stops9h 50m

$287

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Wed 1/29

10:05 am-9:11 pm

2 stops14h 06m

Seattle/Tacoma Intl

Wed 2/5

5:00 am-3:05 pm

1 stop7h 05m

$311

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Fri 5/30

12:30 pm-10:51 pm

1 stop13h 21m

Seattle/Tacoma Intl

Thu 6/5

11:59 pm-11:23 am

1 stop8h 24m

$373

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Thu 3/6

9:42 pm-9:52 am

1 stop15h 10m

$69

BaltimoreSeattle

BWI - SEA

BWISEA

Baltimore/Washington

Tue 1/14

9:55 am-5:00 pm

1 stop10h 05m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 17 results
1
2

Compare providers for flights from Baltimore to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Seattle in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*3 stars
FareScanPrice Accuracy3 starsTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Baltimore to Seattle

Get recent, data-driven insights about flights from Baltimore to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Baltimore to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Seattle. Price data was last updated on December 13, 2024.

The best time to book flights from Baltimore to Seattle is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Baltimore to Seattle?

Currently, January is the cheapest month in which you can book a flight from Baltimore to Seattle (average of $238). Flying from Baltimore to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to SEA?

Find hourly flight availability from Baltimore to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2024.

A simple way to save on the total cost of your ticket is to fly from Baltimore to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Baltimore to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Baltimore to Seattle flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Baltimore to Seattle

Explore weekly flight availability from Baltimore to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 21, 2024.

The most flights from BWI to SEA are scheduled on a Thursday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated December 21, 2024.
Peruse reviews from past customers who have flown with American Airlines, Delta and Southwest from Baltimore to Seattle to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,814 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,540 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,597 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,035 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Food

7.2

Entertainment

7.7

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Baltimore to Seattle?

    To fly from Baltimore to Seattle, you need to book a flight from Baltimore/Washington (BWI) to Seattle/Tacoma Intl (SEA). Nonstop flights to Seattle/Tacoma Intl from Baltimore/Washington take 5h 57m on average. When it comes time to book airfare, you have a few options: there are 3 outbound flights from Baltimore/Washington to Seattle/Tacoma Intl offered by 9 different airlines.

  • How popular is this Baltimore to Seattle flight route?

    The Baltimore/Washington to Seattle/Tacoma Intl flight path was viewed by 24 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Baltimore to Seattle round-trip?

    According to our current data, Alaska Airlines ($257), Spirit Airlines ($258), and American Airlines ($261) offers the cheapest pricing from Baltimore to Seattle. Alaska Airlines is 40% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Baltimore to Seattle one-way?

    One-way options have recently been found by users for as low as $69 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $79 and United Airlines from $99 one-way.

  • What are the most reliable airlines from Baltimore to Seattle?

    Consider Air Tahiti Nui (89%), Alaska Airlines (82%) or Hawaiian Airlines (82%) when booking your flight. These represent the most reliable airlines when flying from Baltimore to Seattle.

  • What are the cheapest flights from Baltimore to Seattle?

    The cheapest flight price from Baltimore to Seattle is $148. On average you can expect to pay $1,492. The most popular route, (Baltimore/Washington - Seattle/Tacoma Intl), can usually be booked for $206.

  • Where are the most common layover locations when flying from Baltimore to Seattle?

    Most of the time, Baltimore to Seattle flights that have layovers will stop in Charlotte. Charlotte is followed by Chicago in terms of the most popular layover location on flights from Baltimore to Seattle.

  • What are some popular things to do or see while on a layover in Charlotte?

    Most Charlotte visitors opt to spend their time experiencing Carowind, Mint Museum Uptown, and North Carolina Blumenthal Performing Arts Center. Carowind, Mint Museum Uptown, and North Carolina Blumenthal Performing Arts Center are located about 8.2 mi, 5.4 mi, and 5.8 mi, respectively from Charlotte Douglas. Travelers can rent a car at Charlotte Douglas for an average daily rate of $50 to make sightseeing during their layover a little easier.

  • What are some popular points of interest to see during a layover in Chicago?

    The majority of Chicago visitors spend their time at Magnificent Mile, Grant Park, and River North. Magnificent Mile, Grant Park and River North are located about 15.5 mi, 16.2 mi, and 15.0 mi, respectively from Chicago O'Hare Intl if you are interested in checking them out. Those looking to explore during their layover in Chicago can rent a car from Chicago O'Hare Intl for about $60 per day.

  • Where are the least popular layover locations for Baltimore to Seattle flights?

    Baltimore to Seattle flights have a layover in Minneapolis least often.

  • Can I find deals for flights from Baltimore to Seattle that include hotel bookings?

    Yes. In addition to deals on Baltimore to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Seattle.

  • Can I find deals for business class flights from Baltimore to Seattle?

    Yes. Cheapflights offers flight deals from Baltimore to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Baltimore to Seattle (average of $238). Flying from Baltimore to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Baltimore to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Baltimore to Seattle

Discover the top 8 airlines that operate flights from Baltimore to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$90Average$188FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$164Average$263FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$184Average$392FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$224Average$395FlexibilityNo cancel feeOn-time71%
DeltaCheapest$235Average$385FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$275Average$489FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$279Average$464FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$326Average$546FlexibilityNo cancel feeOn-time63%
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