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Cheap flights from Baltimore to Seattle from $65

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to Seattle departing on 4/28. 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 Baltimore to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Baltimore to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Baltimore to Seattle.

Cheap last minute flights

Planning a quick getaway from Baltimore to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Baltimore to Seattle

Find recent round-trip train or bus tickets from Baltimore to Seattle.

All round-trip flight deals from Baltimore to Seattle

The cheapest plane tickets from Baltimore to Seattle found on KAYAK recently.
5:33 pm - 12:43 amBWI-SEA
10h 10m1 stop
6:00 am - 4:25 pmSEA-BWI
7h 25m1 stop
$130Frontier
Find Deal
sáb., abr. 26 - sáb., may. 3
5:33 pm - 12:43 amBWI-SEA
10h 10m1 stop
6:00 am - 4:25 pmSEA-BWI
7h 25m1 stop
$140Frontier
Find Deal
lun., may. 5 - sáb., may. 10
3:30 pm - 8:47 pmBWI-SEA
8h 17m1 stop
11:05 pm - 11:41 amSEA-BWI
9h 36m1 stop
$207Delta
Find Deal
mié., feb. 12 - lun., feb. 17
5:28 pm - 10:25 pmBWI-SEA
7h 57m1 stop
1:30 pm - 11:32 pmSEA-BWI
7h 02m1 stop
$217Delta
Find Deal
mié., feb. 12 - mié., feb. 19
5:00 am - 1:06 pmBWI-SEA
11h 06m2 stops
1:43 pm - 12:18 amSEA-BWI
7h 35m1 stop
$222American Airlines
Find Deal
mié., feb. 5 - mié., feb. 12
1:48 pm - 9:18 pmBWI-SEA
10h 30m1 stop
12:43 am - 2:22 pmSEA-BWI
10h 39m1 stop
$262American Airlines
Find Deal
mié., feb. 12 - mar., feb. 18
6:59 pm - 10:00 pmBWI-SEA
6h 01mnonstop
9:52 am - 5:59 pmSEA-BWI
5h 07mnonstop
$278Alaska Airlines
Find Deal
mié., feb. 5 - vie., feb. 7
6:35 am - 1:55 pmBWI-SEA
10h 20m1 stop
7:10 pm - 5:00 amSEA-BWI
6h 50m1 stop
$279United Airlines
Find Deal
jue., mar. 27 - jue., mar. 27
10:05 am - 9:05 pmBWI-SEA
14h 00m2 stops
7:32 pm - 6:52 amSEA-BWI
8h 20m1 stop
$282United Airlines
Find Deal
mié., feb. 12 - mar., feb. 18
6:59 pm - 10:00 pmBWI-SEA
6h 01mnonstop
10:02 am - 5:56 pmSEA-BWI
4h 54mnonstop
$298Alaska Airlines
Find Deal
mié., feb. 12 - mié., feb. 19
4:56 pm - 12:44 amBWI-SEA
10h 48m1 stop
$65Frontier
Find Deal
lun., abr. 28
5:33 pm - 12:43 amBWI-SEA
10h 10m1 stop
$70Frontier
Find Deal
sáb., abr. 26
6:15 am - 2:22 pmBWI-SEA
11h 07m1 stop
$99United Airlines
Find Deal
dom., feb. 16
6:00 am - 10:45 amBWI-SEA
7h 45m1 stop
$104Delta
Find Deal
dom., feb. 16
4:53 pm - 12:48 amBWI-SEA
10h 55m2 stops
$109American Airlines
Find Deal
mar., mar. 11
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
$129Alaska Airlines
Find Deal
sáb., feb. 15
6:35 am - 1:55 pmBWI-SEA
10h 20m1 stop
$140United Airlines
Find Deal
vie., mar. 7
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
$149Alaska Airlines
Find Deal
dom., feb. 16
7:02 pm - 12:56 amBWI-SEA
8h 54m1 stop
$159American Airlines
Find Deal
jue., feb. 13
2:01 pm - 10:07 pmBWI-SEA
11h 06m1 stop
$189Delta
Find Deal
sáb., feb. 15
8:08 am - 5:00 pmBWI-SEA
11h 52m1 stop
7:10 am - 5:00 amSEA-BWI
18h 50m1 stop
$447Spirit Airlines
Find Deal
dom., ene. 19 - jue., feb. 6
5:37 pm - 5:00 pmBWI-SEA
26h 23m2 stops
9:45 am - 5:00 amSEA-BWI
16h 15m1 stop
$466Spirit Airlines
Find Deal
lun., ene. 20 - mié., ene. 22
6:00 am - 10:45 amBWI-SEA
7h 45m1 stop
1:30 pm - 11:34 pmSEA-BWI
7h 04m1 stop
$642Delta
Find Deal
lun., ene. 20 - jue., ene. 23
7:30 am - 12:42 pmBWI-SEA
8h 12m1 stop
1:43 pm - 12:32 amSEA-BWI
7h 49m1 stop
$657American Airlines
Find Deal
vie., ene. 17 - mar., ene. 21
3:03 pm - 9:21 pmBWI-SEA
9h 18m1 stop
5:22 am - 7:57 pmSEA-BWI
11h 35m2 stops
$662American Airlines
Find Deal
vie., ene. 17 - mar., ene. 21
5:33 pm - 10:25 pmBWI-SEA
7h 52m1 stop
12:00 pm - 11:53 pmSEA-BWI
8h 53m1 stop
$663Delta
Find Deal
mar., ene. 21 - mié., feb. 5
6:59 pm - 10:00 pmBWI-SEA
6h 01mnonstop
9:52 am - 5:59 pmSEA-BWI
5h 07mnonstop
$688Alaska Airlines
Find Deal
lun., ene. 20 - mié., ene. 29
5:22 pm - 10:53 pmBWI-SEA
8h 31m1 stop
5:00 am - 3:05 pmSEA-BWI
7h 05m1 stop
$742United Airlines
Find Deal
vie., ene. 17 - mié., ene. 22
10:05 am - 9:11 pmBWI-SEA
14h 06m2 stops
5:15 pm - 7:02 amSEA-BWI
10h 47m1 stop
$762United Airlines
Find Deal
sáb., ene. 18 - mar., ene. 21
6:59 pm - 10:00 pmBWI-SEA
6h 01mnonstop
9:52 am - 5:59 pmSEA-BWI
5h 07mnonstop
$778Alaska Airlines
Find Deal
lun., ene. 20 - mié., ene. 22
6:59 pm - 10:00 pmBWI-SEA
6h 01mnonstop
9:52 am - 5:59 pmSEA-BWI
5h 07mnonstop
$278Alaska Airlines
Find Deal
mié., feb. 5 - vie., feb. 7
7:05 pm - 9:45 pmBWI-SEA
5h 40mnonstop
9:40 pm - 5:46 amSEA-BWI
5h 06mnonstop
$298Alaska Airlines
Find Deal
mié., abr. 23 - dom., abr. 27
7:06 am - 9:45 amBWI-SEA
5h 39mnonstop
9:45 pm - 5:45 amSEA-BWI
5h 00mnonstop
$328Alaska Airlines
Find Deal
mié., may. 7 - lun., may. 19
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
10:02 am - 5:56 pmSEA-BWI
4h 54mnonstop
$338Alaska Airlines
Find Deal
mié., mar. 5 - sáb., mar. 8
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
10:02 am - 5:56 pmSEA-BWI
4h 54mnonstop
$358Alaska Airlines
Find Deal
jue., feb. 13 - jue., feb. 20
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
10:02 am - 5:56 pmSEA-BWI
4h 54mnonstop
$368Alaska Airlines
Find Deal
mar., mar. 11 - mar., mar. 18
6:59 pm - 10:00 pmBWI-SEA
6h 01mnonstop
9:52 am - 5:59 pmSEA-BWI
5h 07mnonstop
$388Alaska Airlines
Find Deal
lun., feb. 3 - jue., feb. 6
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
10:02 am - 5:56 pmSEA-BWI
4h 54mnonstop
$418Alaska Airlines
Find Deal
sáb., feb. 15 - dom., feb. 16
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
10:02 am - 5:56 pmSEA-BWI
4h 54mnonstop
$438Alaska Airlines
Find Deal
vie., feb. 14 - mar., feb. 18
6:56 pm - 10:00 pmBWI-SEA
6h 04mnonstop
10:02 am - 5:56 pmSEA-BWI
4h 54mnonstop
$440Alaska Airlines
Find Deal
vie., feb. 14 - sáb., feb. 15

Frontier flights from Baltimore to Seattle

Our best Frontier deals on Baltimore to Seattle flight tickets
Frontier
Apr 26
BWI5:33 pmBaltimore/Washington
10h 10m
1 stop
SEA12:43 amSeattle/Tacoma Intl
May 3
SEA6:00 amSeattle/Tacoma Intl
7h 25m
1 stop
BWI4:25 pmBaltimore/Washington
Frontier
May 5
BWI5:33 pmBaltimore/Washington
10h 10m
1 stop
SEA12:43 amSeattle/Tacoma Intl
May 10
SEA6:00 amSeattle/Tacoma Intl
7h 25m
1 stop
BWI4:25 pmBaltimore/Washington
Frontier
May 2
BWI5:33 pmBaltimore/Washington
10h 10m
1 stop
SEA12:43 amSeattle/Tacoma Intl
May 3
SEA6:00 amSeattle/Tacoma Intl
7h 25m
1 stop
BWI4:25 pmBaltimore/Washington

Delta flights from Baltimore to Seattle

Our best Delta deals on Baltimore to Seattle flight tickets
Delta
Feb 12
BWI3:30 pmBaltimore/Washington
8h 17m
1 stop
SEA8:47 pmSeattle/Tacoma Intl
Feb 17
SEA11:05 pmSeattle/Tacoma Intl
9h 36m
1 stop
BWI11:41 amBaltimore/Washington
Delta
Feb 12
BWI5:28 pmBaltimore/Washington
7h 57m
1 stop
SEA10:25 pmSeattle/Tacoma Intl
Feb 19
SEA1:30 pmSeattle/Tacoma Intl
7h 02m
1 stop
BWI11:32 pmBaltimore/Washington
Delta
Mar 5
BWI7:15 amBaltimore/Washington
8h 10m
1 stop
SEA12:25 pmSeattle/Tacoma Intl
Mar 10
SEA10:55 pmSeattle/Tacoma Intl
9h 48m
1 stop
BWI11:43 amBaltimore/Washington

See travel insights to Seattle from

How to get the cheapest flight ticket from Baltimore to Seattle

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 Seattle?

In general, February is the cheapest month to fly from Baltimore to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $356. If you don’t want to visit Seattle in February, then you should wait until January to fly from Baltimore, when ticket prices are also cheap, with an average price of $361.

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

On average, the least expensive day to fly to Seattle from Baltimore is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $396. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Baltimore because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $476.

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

Flying to Seattle from Baltimore at noon is the least expensive time of day to depart. momondo users have found prices as low as $326 when looking at flights departing at noon. Flights to Seattle are more costly in the morning, with an average ticket price of $455. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

You are more likely to see cheaper flights to Seattle from Baltimore when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $431 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Baltimore for as low as $376 on momondo.

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

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

How have Baltimore to Seattle flight prices changed over time?

As of January 2025, prices for Baltimore to Seattle flights are approximately 18% more expensive when compared to flights at the same time last year.

When to book flights from Baltimore to Seattle

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

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

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

Best Price Found

$65

Fastest flight time

5h 39m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Baltimore in the past 72 hours is $65. The best round-trip flight deal from Baltimore to Seattle found on momondo in the last 72 hours is $130.
The fastest flight from Baltimore to Seattle takes 5h 39m
Direct flights go from Baltimore to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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

    The straight-line distance from Baltimore/Washington to Seattle/Tacoma Intl is 2326.9 mi. 5h 39m is a normal flight duration for this route.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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


Best airlines flying from Baltimore to Seattle

Compare and see reviews for airlines that fly from Baltimore to Seattle with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $90Free CancellationRating
6.0
3,435 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $164Free CancellationRating
6.3
8,100 reviews
Search Spirit Airlines flights
Sun Country AirPriceFrom $198Free CancellationRating
7.0
384 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $216Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $234Free CancellationRating
8.0
8,511 reviews
Search Delta flights
Alaska AirlinesPriceFrom $276Free CancellationRating
8.0
9,681 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $278Free CancellationRating
7.4
8,964 reviews
Search United Airlines flights
SouthwestPriceFrom $361Free CancellationRating
8.1
4,659 reviews
Search Southwest flights
  • Alaska Airlines Flights From Baltimore to Seattle

    The lowest priced Alaska Airlines flight from Baltimore to Seattle from the last 72 hours was $276. Generally, Alaska Airlines has 1 flight on this route every week with an average price of $484. Alaska Airlines is rated 8.0/10 by our users.


Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Kent
Renton
Tukwila
Federal Way
Lynnwood
Kirkland
Lakewood
Redmond
Puyallup
Fife
Shoreline
Centralia
Bothell
Cle Elum
Lacey

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Baltimore to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Baltimore to Seattle flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Baltimore to Seattle.

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

Of course. momondo tracks the price of Baltimore to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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