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Cheap flights from Seattle to Washington, D.C. from $103

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 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Washington, D.C.

Cheap round-trip flights

Delta Logo
11:55 pm - 10:36 amSEA-BWI
7h 41m1 stop
Delta Logo
7:15 am - 2:39 pmBWI-SEA
10h 24m1 stop
$207Delta
Find Deal
Wed, Sep 10 - Wed, Oct 1
Delta Logo
5:49 pm - 6:00 amSEA-BWI
9h 11m1 stop
Delta Logo
4:39 pm - 11:54 pmBWI-SEA
10h 15m1 stop
$233Delta
Find Deal
Sat, Sep 6 - Wed, Sep 17
American Airlines Logo
5:35 am - 6:37 pmSEA-BWI
10h 02m1 stop
American Airlines Logo
11:04 am - 7:09 pmBWI-SEA
11h 05m2 stops
$238American Airlines
Find Deal
Sat, Aug 30 - Sat, Sep 6
American Airlines Logo
12:34 am - 11:20 amSEA-BWI
7h 46m1 stop
American Airlines Logo
5:10 pm - 11:18 pmBWI-SEA
9h 08m1 stop
$242American Airlines
Find Deal
Wed, Oct 29 - Tue, Nov 4
Hawaiian Airlines Logo
9:29 pm - 5:39 amSEA-BWI
5h 10mnonstop
Hawaiian Airlines Logo
7:00 am - 9:40 amBWI-SEA
5h 40mnonstop
$253Hawaiian Airlines
Find Deal
Wed, Sep 17 - Sun, Sep 21
Alaska Airlines Logo
9:29 pm - 5:33 amSEA-BWI
5h 04mnonstop
Alaska Airlines Logo
7:22 pm - 10:05 pmBWI-SEA
5h 43mnonstop
$257Alaska Airlines
Find Deal
Sat, Aug 30 - Sun, Aug 31
Hawaiian Airlines Logo
9:29 pm - 5:33 amSEA-BWI
5h 04mnonstop
Hawaiian Airlines Logo
7:37 pm - 10:27 pmBWI-SEA
5h 50mnonstop
$260Hawaiian Airlines
Find Deal
Sat, Aug 30 - Fri, Sep 5
Alaska Airlines Logo
9:29 pm - 5:39 amSEA-BWI
5h 10mnonstop
Alaska Airlines Logo
7:00 am - 9:40 amBWI-SEA
5h 40mnonstop
$267Alaska Airlines
Find Deal
Mon, Sep 15 - Wed, Sep 17
Southwest Logo
5:35 am - 5:30 pmSEA-BWI
8h 55m2 stops
Southwest Logo
9:30 am - 12:15 pmBWI-SEA
5h 45mnonstop
$272Southwest
Find Deal
Wed, Sep 17 - Sun, Sep 21
Southwest Logo
9:10 pm - 5:10 amSEA-BWI
5h 00mnonstop
Southwest Logo
6:05 pm - 11:10 pmBWI-SEA
8h 05m1 stop
$277Southwest
Find Deal
Thu, Sep 4 - Wed, Sep 10

Hawaiian Airlines flights from Seattle to Baltimore

Our best Hawaiian Airlines deals on Seattle to Baltimore flight tickets
Hawaiian Airlines
Sep 17
SEA9:29 pmSeattle/Tacoma Intl
5h 10m
BWI5:39 amBaltimore/Washington
Sep 21
BWI7:00 amBaltimore/Washington
5h 40m
SEA9:40 amSeattle/Tacoma Intl
$253
Find similar
Hawaiian Airlines
Aug 30
SEA9:29 pmSeattle/Tacoma Intl
5h 04m
BWI5:33 amBaltimore/Washington
Sep 5
BWI7:37 pmBaltimore/Washington
5h 50m
SEA10:27 pmSeattle/Tacoma Intl
$260
Find similar
Hawaiian Airlines
Aug 30
SEA9:29 pmSeattle/Tacoma Intl
5h 04m
BWI5:33 amBaltimore/Washington
Sep 6
BWI7:37 pmBaltimore/Washington
5h 50m
SEA10:27 pmSeattle/Tacoma Intl
$265
Find similar

Delta flights from Seattle to Baltimore

Our best Delta deals on Seattle to Baltimore flight tickets
Delta
Sep 10
SEA11:55 pmSeattle/Tacoma Intl
7h 41m
1 stop
BWI10:36 amBaltimore/Washington
Oct 1
BWI7:15 amBaltimore/Washington
10h 24m
1 stop
SEA2:39 pmSeattle/Tacoma Intl
$207
Find similar
Delta
Sep 6
SEA5:49 pmSeattle/Tacoma Intl
9h 11m
1 stop
BWI6:00 amBaltimore/Washington
Sep 17
BWI4:39 pmBaltimore/Washington
10h 15m
1 stop
SEA11:54 pmSeattle/Tacoma Intl
$233
Find similar
Delta
Sep 5
SEA6:00 amSeattle/Tacoma Intl
8h 36m
1 stop
BWI5:36 pmBaltimore/Washington
Sep 9
BWI12:23 pmBaltimore/Washington
8h 28m
1 stop
SEA5:51 pmSeattle/Tacoma Intl
$243
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 August 1, 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

Wed 9/10

11:55 pm-10:36 am

1 stop7h 41m

Baltimore/Washington

Wed 10/1

7:15 am-2:39 pm

1 stop10h 24m

$207

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 9/6

5:49 pm-6:00 am

1 stop9h 11m

Baltimore/Washington

Wed 9/17

4:39 pm-11:54 pm

1 stop10h 15m

$233

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 8/30

5:35 am-6:37 pm

1 stop10h 02m

Baltimore/Washington

Sat 9/6

11:04 am-7:09 pm

2 stops11h 05m

$238

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 10/29

12:34 am-11:20 am

1 stop7h 46m

Baltimore/Washington

Tue 11/4

5:10 pm-11:18 pm

1 stop9h 08m

$242

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 9/17

9:29 pm-5:39 am

Nonstop5h 10m

Baltimore/Washington

Sun 9/21

7:00 am-9:40 am

Nonstop5h 40m

$253

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 8/30

9:29 pm-5:33 am

Nonstop5h 04m

Baltimore/Washington

Sun 8/31

7:22 pm-10:05 pm

Nonstop5h 43m

$257

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Sat 8/30

9:29 pm-5:33 am

Nonstop5h 04m

Baltimore/Washington

Fri 9/5

7:37 pm-10:27 pm

Nonstop5h 50m

$260

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Mon 9/15

9:29 pm-5:39 am

Nonstop5h 10m

Baltimore/Washington

Wed 9/17

7:00 am-9:40 am

Nonstop5h 40m

$267

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 9/17

5:35 am-5:30 pm

2 stops8h 55m

Baltimore/Washington

Sun 9/21

9:30 am-12:15 pm

Nonstop5h 45m

$272

SeattleBaltimore

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Thu 9/4

9:10 pm-5:10 am

Nonstop5h 00m

Baltimore/Washington

Wed 9/10

6:05 pm-11:10 pm

1 stop8h 05m

$277

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 October is your next best option. Flight prices from Seattle to Baltimore during October average around $356.

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 $411. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $559. 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 $475.

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 $422 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 $323 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.

How have Seattle to Baltimore flight prices changed over time?

As of August 2025, prices for Seattle to Baltimore flights are approximately 13% cheaper 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

$103

Fastest flight time

5h 00m

Direct flights

Every day

Airports in Baltimore

1 airport
The best one-way flight to Baltimore from Seattle in the past 72 hours is $103. The best round-trip flight deal from Seattle to Baltimore found on momondo in the last 72 hours is $207.
The fastest flight from Seattle to Baltimore takes 5h 00m
Direct flights go from Seattle to Baltimore every day.
There is 1 airport near Baltimore: 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 5h 00m.

  • 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
FrontierPriceFrom $139Free CancellationRating
5.9
3,239 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $178Free CancellationRating
6.3
8,049 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $188Free CancellationRating
7.8
2,611 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $204Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $206Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $262Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $276Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $286Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

  • Alaska Airlines Flights From Seattle to Baltimore

    Alaska Airlines flight deals from Seattle to Baltimore start from $276 round-trip. Over the 14 Alaska Airlines flights for this route in a normal week, average airfare is usually $468 round-trip - but some users have found much cheaper deals with momondo.

  • Southwest Flights From Seattle to Baltimore

    $286 is the best Southwest flight deal from Seattle to Baltimore found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $441, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,246 user reviews) flies into Baltimore from Seattle 6 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

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