SEA - BWI

$102 Find Cheap Flights from Seattle to Baltimore - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Baltimore departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$273
Typical prices: $276-$487
Alaska Airlines
Sat 9/5Sat 9/12
SEA - BWI • Non-stop
Cheapest one-way
$102
Typical prices: $177-$343
Frontier
Tue 9/15
SEA - BWI • 2 stops
Nonstop flights
You can fly direct with Alaska Airlines and Southwest. Average duration is 5h 04m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $296 (round-trip)
Shortest trip • 7h 09m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 21% price drop
Most popular
Good to know
Good to know
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Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Baltimore (SEA-BWI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Baltimore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Baltimore

Sat, Sep 5 - Sat, Sep 12
Alaska Airlines Logo
10:23 pm - 6:30 amSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
5h 07mnonstop
Alaska Airlines Logo
7:15 pm - 9:57 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
5h 42mnonstop
$273Alaska Airlines
Tue, Sep 29 - Tue, Sep 29
Alaska Airlines Logo
9:57 am - 6:08 pmSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
5h 11mnonstop
Alaska Airlines Logo
7:15 pm - 9:57 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
5h 42mnonstop
$275Alaska Airlines
Sat, Sep 26 - Tue, Sep 29
Southwest Logo
10:30 pm - 6:30 amSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
5h 00mnonstop
Southwest Logo
10:20 am - 1:00 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
5h 40mnonstop
$280Southwest
Sat, Sep 26 - Wed, Sep 30
Southwest Logo
10:30 pm - 6:30 amSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
5h 00mnonstop
Southwest Logo
10:20 am - 1:00 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
5h 40mnonstop
$281Southwest
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
10:50 am - 9:42 pmSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
7h 52m1 stop Chicago O'Hare Intl
United Airlines Logo
6:10 am - 12:19 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
9h 09m1 stop Chicago O'Hare Intl
$294United Airlines
Sat, Sep 5 - Thu, Sep 24
Delta Logo
7:16 am - 7:50 pmSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
9h 34m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:10 am - 10:26 amBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
7h 16m1 stop Detroit Metropolitan Wayne County
$299Delta
Sat, Oct 17 - Mon, Oct 19
Delta Logo
11:10 pm - 8:45 amSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
6h 35m1 stop Detroit Metropolitan Wayne County
Delta Logo
5:36 pm - 10:05 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
7h 29m1 stop Detroit Metropolitan Wayne County
$299Delta
Sat, Sep 12 - Sat, Sep 19
United Airlines Logo
6:32 am - 8:55 pmSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
11h 23m1 stop Los Angeles
United Airlines Logo
5:40 pm - 10:45 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
8h 05m1 stop Chicago O'Hare Intl
$299United Airlines
Tue, Oct 13 - Wed, Oct 14
American Airlines Logo
12:04 pm - 10:54 pmSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
7h 50m1 stop Dallas/Fort Worth
American Airlines Logo
6:20 am - 12:18 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
8h 58m1 stop Charlotte Douglas
$299American Airlines
Wed, Sep 9 - Tue, Sep 15
American Airlines Logo
11:57 pm - 1:05 pmSEA  Seattle/Tacoma Intl-BWI Baltimore/Washington
10h 08m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 12:50 pmBWI  Baltimore/Washington-SEA Seattle/Tacoma Intl
9h 50m1 stop Chicago O'Hare Intl
$299American Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Baltimore flights

Get data-powered insights and trends into flights from Seattle to Baltimore to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Baltimore?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Baltimore departing in September.

Flight prices are below average for this route right now.

Flights to Baltimore from Seattle usually cost between $380 and $556 in September.
The lowest price found in the past 5 days was $273 on Alaska Airlines (Sep 5-Sep 12).

What’s the cheapest day of the week to fly from Seattle to Baltimore?

The average price of all round-trip flights from Seattle to Baltimore clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Baltimore on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Seattle to Baltimore. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Baltimore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Baltimore is February, where tickets cost $337 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $568 and $507 respectively.

Can I save money by flying with a layover from Seattle to Baltimore?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $472 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Baltimore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Baltimore, you should book around 4 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Baltimore

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on BWI and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low season

January

Cheapest flight

$102
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Seattle to Baltimore

When to book flights from Seattle to Baltimore

Are your dates flexible? Find out the best times to travel from Seattle to Baltimore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Baltimore

  • How far is downtown Baltimore from BWI airport?

    Downtown Baltimore is roughly 10 miles from BWI airport. There are multiple ways through which you can go from the airport to the city center including metro, taxi, and rental cars. The cheapest mode would be taking the blue-line metro towards Hunt Valley and the drop-off at the station on Lexington Street. A more convenient alternative would be a taxi or rental car. They are both easily available at the airport and will drop you at any destination in Baltimore.

  • Are there any lounges at SEA airport?

    There are about nine lounges at Seattle-Tacoma International Airport where you can hang out while waiting to board your flight. Out of the nine lounges, five have an affiliation to an airline and they include Alaska Airlines, which has three lounges, and Delta and United Airlines, each with one lounge. On top of these five lounges, there is a Centurion Lounge in Concourse B, The Club at SEA in the central terminal and south satellite, and lastly the USO Lounge which is open to active military personnel and their close family.

  • How do I make my flight from Seattle to Baltimore more sustainable?

    While flying may not be a sustainable way to travel, it is unavoidable at times. This is why we need to make our flights as eco-friendly as possible to reduce the impact on the environment. One way to do so would be to book a direct flight instead of two connecting flights. Connecting flights are usually longer and result in more carbon emissions.

  • Where are the pet relief areas at BWI airport?

    If you’re traveling with a pet through BWI airport, you should keep them in their carriers at all times except when using the pet relief areas. The pet relief areas at this airport can be found at various points both before and after security. The most conveniently located ones for arriving passengers can be found near the hourly garage parking and at the Concourse D and E connector.

  • What is the cheapest flight from Seattle to Baltimore?

    In the last 5 days, the lowest price for a flight from Seattle to Baltimore was $102 for a one-way ticket and $273 for a round-trip.

  • Do I need a passport to fly between Seattle and Baltimore?

    No

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Baltimore?

    Alaska Airlines, JetBlue, Delta, Hawaiian Airlines, and American Airlines offer inflight Wi-Fi service on the Seattle to Baltimore flight route.

  • Which aircraft models fly most regularly from Seattle to Baltimore?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Seattle to Baltimore flight route.

  • Which airline alliances offer flights from Seattle to Baltimore?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Baltimore, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Baltimore?

    There are nonstop flights from Seattle to Baltimore on a daily basis.

  • Which is the best airline for flights from Seattle to Baltimore, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Baltimore are Southwest and Alaska Airlines. With an average price for the route of $425 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $454 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Seattle to Baltimore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Baltimore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Baltimore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baltimore from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Baltimore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Baltimore with an airline and back to Seattle with another airline. Booking your flights between Seattle and BWI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Baltimore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Baltimore from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Baltimore

  • Looking for a cheap flight? 25% of our users found flights on this route for $266 or less one-way and $417 or less round-trip.
  • When flying from Seattle-Tacoma International Airport (SEA), ensure you arrive at the airport at least 3h before your departure time. That should give you enough time to go through the security lines with ease.
  • To get wheelchair services at Baltimore/Washington International Thurgood Marshall Airport (BWI) you should inform your airline carrier at least 48h before your flight is supposed to take off. That gives the airport officials ample time to make all the necessary arrangements.
  • When flying out of SEA airport, you should consider staying at the Seattle Airport Marriott. The hotel is located inside the airport, putting you less than 5min away from the main terminal. Additionally, the hotel eliminates the hectic commute to the airport that most people have to deal with.
  • If you plan on leaving your car at SEA airport, check out the off-site parking options. They are usually cheaper than the parking lots inside the airport. On certain occasions, you could end up paying up to 50% less.
  • There are several rental car companies operating at BWI airport including highly-rated names such as Thrifty, Budget, Hertz, and Enterprise. They are all located at the airport rental car facility which you can access via a shuttle from the airport terminal.

Prefer to fly direct from Seattle to Baltimore?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Baltimore/Washington.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Baltimore/Washington Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Baltimore/Washington

Monday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Tuesday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Wednesday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Thursday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Friday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Saturday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Sunday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

See more direct flights

Direct returns

Baltimore/Washington to Seattle/Tacoma Intl

Monday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Tuesday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Wednesday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Thursday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Friday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Saturday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

Sunday

Alaska Airlines,Southwest

Alaska Airlines,Southwest

See more direct flights

Everything you need to know for your flight from Seattle to Baltimore

Information on your arrival and departure airports