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Cheap flights from Seattle to Washington, D.C. from $85

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Washington, D.C. departing on 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:30 pm - 11:05 pm
SEA
-
BWI
6h 35m1 stop
Delta Logo
4:45 pm - 10:50 pm
BWI
-
SEA
9h 05m1 stop
$228Delta
Sat, Jan 10 - Sat, Jan 17
American Airlines Logo
12:45 pm - 11:21 pm
SEA
-
BWI
7h 36m1 stop
American Airlines Logo
2:46 pm - 11:51 pm
BWI
-
SEA
12h 05m2 stops
$233American Airlines
Thu, Jan 29 - Mon, Feb 2
United Airlines Logo
9:00 am - 9:26 pm
SEA
-
BWI
9h 26m1 stop
United Airlines Logo
10:05 am - 9:12 pm
BWI
-
SEA
14h 07m2 stops
$242United Airlines
Tue, Jan 20 - Sat, Jan 24
Southwest Logo
6:35 am - 5:40 pm
SEA
-
BWI
8h 05m2 stops
Southwest Logo
4:15 pm - 11:05 pm
BWI
-
SEA
9h 50m1 stop
$244Southwest
Fri, Feb 6 - Wed, Feb 18
Hawaiian Airlines Logo
10:11 am - 6:14 pm
SEA
-
BWI
5h 03mnonstop
Hawaiian Airlines Logo
7:14 pm - 10:14 pm
BWI
-
SEA
6h 00mnonstop
$246Hawaiian Airlines
Sat, Jan 24 - Sat, Jan 31
American Airlines Logo
12:45 pm - 11:21 pm
SEA
-
BWI
7h 36m1 stop
American Airlines Logo
11:13 am - 7:04 pm
BWI
-
SEA
10h 51m1 stop
$247American Airlines
Thu, Jan 15 - Sun, Jan 18
Hawaiian Airlines Logo
10:11 am - 6:14 pm
SEA
-
BWI
5h 03mnonstop
Hawaiian Airlines Logo
7:14 pm - 10:14 pm
BWI
-
SEA
6h 00mnonstop
$248Hawaiian Airlines
Sat, Jan 24 - Sat, Jan 31
Hawaiian Airlines Logo
10:11 am - 6:14 pm
SEA
-
BWI
5h 03mnonstop
Hawaiian Airlines Logo
7:14 pm - 10:14 pm
BWI
-
SEA
6h 00mnonstop
$249Hawaiian Airlines
Wed, Feb 4 - Wed, Feb 11
Southwest Logo
11:40 am - 5:45 am
SEA
-
BWI
15h 05m2 stops
Southwest Logo
6:15 am - 11:00 am
BWI
-
SEA
7h 45m1 stop
$250Southwest
Sat, Jan 24 - Sat, Jan 31
Delta Logo
7:25 am - 11:26 pm
SEA
-
BWI
13h 01m2 stops
Delta Logo
7:00 am - 12:33 pm
BWI
-
SEA
8h 33m1 stop
$253Delta
Tue, Feb 3 - Sat, Feb 7

Delta flights from Seattle to Baltimore

Our best Delta deals on Seattle to Baltimore flight tickets
Delta
Jan 29
SEA11:10 pmSeattle/Tacoma Intl
8h 17m
1 stop
BWI10:27 amBaltimore/Washington
Feb 3
BWI4:45 pmBaltimore/Washington
9h 30m
1 stop
SEA11:15 pmSeattle/Tacoma Intl
$228
Find similar
Delta
Jan 29
SEA9:05 amSeattle/Tacoma Intl
21h 18m
2 stops
BWI9:23 amBaltimore/Washington
Feb 7
BWI5:25 pmBaltimore/Washington
7h 24m
1 stop
SEA9:49 pmSeattle/Tacoma Intl
$256
Find similar
Delta
Jan 10
SEA6:05 amSeattle/Tacoma Intl
8h 13m
1 stop
BWI5:18 pmBaltimore/Washington
Jan 12
BWI4:45 pmBaltimore/Washington
9h 05m
1 stop
SEA10:50 pmSeattle/Tacoma Intl
$258
Find similar

American Airlines flights from Seattle to Baltimore

Our best American Airlines deals on Seattle to Baltimore flight tickets
American Airlines
Jan 23
SEA9:45 pmSeattle/Tacoma Intl
9h 34m
1 stop
BWI10:19 amBaltimore/Washington
Jan 26
BWI2:46 pmBaltimore/Washington
12h 05m
2 stops
SEA11:51 pmSeattle/Tacoma Intl
$233
Find similar
American Airlines
Jan 15
SEA12:45 pmSeattle/Tacoma Intl
7h 36m
1 stop
BWI11:21 pmBaltimore/Washington
Jan 18
BWI11:13 amBaltimore/Washington
10h 51m
1 stop
SEA7:04 pmSeattle/Tacoma Intl
$247
Find similar
American Airlines
Jan 20
SEA7:35 amSeattle/Tacoma Intl
10h 43m
2 stops
BWI9:18 pmBaltimore/Washington
Jan 27
BWI11:13 amBaltimore/Washington
13h 34m
2 stops
SEA9:47 pmSeattle/Tacoma Intl
$262
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Baltimore 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, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Seattle to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 1/10

1:30 pm-11:05 pm

1 stop6h 35m

Baltimore/Washington

Sat 1/17

4:45 pm-10:50 pm

1 stop9h 05m

$228

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Thu 1/29

12:45 pm-11:21 pm

1 stop7h 36m

Baltimore/Washington

Mon 2/2

2:46 pm-11:51 pm

2 stops12h 05m

$233

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 1/20

9:00 am-9:26 pm

1 stop9h 26m

Baltimore/Washington

Sat 1/24

10:05 am-9:12 pm

2 stops14h 07m

$242

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Fri 2/6

6:35 am-5:40 pm

2 stops8h 05m

Baltimore/Washington

Wed 2/18

4:15 pm-11:05 pm

1 stop9h 50m

$244

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 1/24

10:11 am-6:14 pm

Nonstop5h 03m

Baltimore/Washington

Sat 1/31

7:14 pm-10:14 pm

Nonstop6h 00m

$246

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Thu 1/15

12:45 pm-11:21 pm

1 stop7h 36m

Baltimore/Washington

Sun 1/18

11:13 am-7:04 pm

1 stop10h 51m

$247

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 1/24

10:11 am-6:14 pm

Nonstop5h 03m

Baltimore/Washington

Sat 1/31

7:14 pm-10:14 pm

Nonstop6h 00m

$248

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 2/4

10:11 am-6:14 pm

Nonstop5h 03m

Baltimore/Washington

Wed 2/11

7:14 pm-10:14 pm

Nonstop6h 00m

$249

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 1/24

11:40 am-5:45 am

2 stops15h 05m

Baltimore/Washington

Sat 1/31

6:15 am-11:00 am

1 stop7h 45m

$250

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 2/3

7:25 am-11:26 pm

2 stops13h 01m

Baltimore/Washington

Sat 2/7

7:00 am-12:33 pm

1 stop8h 33m

$253

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Seattle to Baltimore

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Baltimore?

If you’re not able to fly to Baltimore in September, then November is your next best option. Flight prices from Seattle to Baltimore during November average around $357.

What is the cheapest day to depart on your flight to Baltimore?

The cheapest day to depart from Seattle to Baltimore is on a Wednesday. Travelers who choose to depart for Baltimore on a Wednesday will often find tickets for as low as $391. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $554. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

What is the cheapest time of day to depart on your flight to Baltimore?

Flying to Baltimore from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $355 when looking at flights departing in the afternoon. Flights in the morning are often more expensive with an average ticket price of $468.

What is the cheapest Seattle/Tacoma Intl to Baltimore/Washington flight route?

Fly from Seattle/Tacoma Intl to Baltimore/Washington for the best Seattle/Tacoma Intl - Baltimore/Washington flight prices

How far in advance should I book a flight to Baltimore?

You are more likely to see cheaper flights to Baltimore from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Baltimore for around $413 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Baltimore from Seattle for as low as $330 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Baltimore/Washington flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Baltimore/Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Baltimore flights?

No. A direct flight is the cheapest option for a flight between Seattle to Baltimore.

How have Seattle to Baltimore flight prices changed over time?

As of December 2025, prices for Seattle to Baltimore flights are approximately 8% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Baltimore

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Baltimore according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Baltimore (SEA to BWI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Baltimore

Best Price Found

$263

Fastest flight time

4h 55m

Direct flights

Every day

Airports in Baltimore

1 airport
The best one-way flight to Baltimore from Seattle in the past 72 hours is $263. The best round-trip flight deal from Seattle to Baltimore found on momondo in the last 72 hours is $437.
The fastest flight from Seattle to Baltimore takes 4h 55m
Direct flights go from Seattle to Baltimore every day.
There is 1 airport in Baltimore. From Seattle there are direct flights to Baltimore/Washington (BWI).
Search flight deals

  • How far is Seattle/Tacoma Intl to Baltimore/Washington by plane?

    A flight from Seattle/Tacoma Intl to Baltimore/Washington will travel around 2326.9 mi. By plane, this route typically takes 4h 55m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Baltimore/Washington Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Baltimore/Washington Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Baltimore/Washington Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Baltimore/Washington Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Baltimore/Washington Airport.

  • What documentation or ID do you need to fly to Baltimore/Washington Airport?

    The necessary travel and health documents for your Baltimore/Washington Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Baltimore?

  • What is the most popular airline from Seattle to Baltimore?

Best airlines flying from Seattle to Baltimore

Compare and see reviews for airlines that fly from Seattle to Baltimore with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $128Free CancellationRating
6.3
8,194 reviews
Search Spirit Airlines flights
FrontierPriceFrom $148Free CancellationRating
5.8
3,073 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $153Free CancellationRating
7.8
2,820 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $178Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,015 reviews
Search Delta flights
SouthwestPriceFrom $218Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
United AirlinesPriceFrom $226Free CancellationRating
7.4
9,109 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $261Free CancellationRating
8.0
11,517 reviews
Search Alaska Airlines flights

  • Southwest Flights From Seattle to Baltimore

    Southwest flight deals from Seattle to Baltimore start from $218 round-trip. Over the 4 Southwest flights for this route in a normal week, average airfare is usually $422 round-trip - but some users have found much cheaper deals with momondo.

  • Alaska Airlines Flights From Seattle to Baltimore

    $261 is the best Alaska Airlines flight deal from Seattle to Baltimore found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $455, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 11,518 user reviews) flies into Baltimore from Seattle 9 times in an average week so prices can vary.

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Baltimore?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Baltimore for you.

Can I find flights from Seattle to Baltimore with flexible booking policies on momondo?

Flights from Seattle to Baltimore with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Baltimore?

momondo provides multiple filters to help you find the best flight to Baltimore from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Seattle to Baltimore right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seattle to Baltimore flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Baltimore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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