Cheap flights from Baltimore to Seattle (BWI - SEA)

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The best prices from Baltimore/Washington to Seattle/Tacoma Intl are usually found in October or November, booked 60 days in advance, depart on a Friday or Thursday and return on a Friday

How to find the cheapest flight from
Baltimore (BWI) to Seattle (SEA)

All the information you need to plan the best BWI to SEA flight in 2022: compare Baltimore to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
BWI - SEA
Price
$264 - $678
SEA
Temperature
41 - 66.2 °F
SEA
Rainfall
0.7 - 6.6 inches

Popular in

June

High demand for flights, 44% potential price rise

Cheapest in

October

Best time to find cheap flights, 31% potential price drop

Round-trip from

$264

From Baltimore/Washington to Seattle/Tacoma Intl

One-way from

$163

One-way flight from Baltimore/Washington to Seattle/Tacoma Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Baltimore to Seattle?

Travelers have found it’s best to book a flight 36 days in advance to save up to 32% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 36 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Baltimore to Seattle 1-2 weeks in advance for as low as $389, or $461 for flights within the next 24 hours.

What is the cheapest day to fly round-trip from Baltimore to Seattle?

It’s generally more expensive to depart on a Thursday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

When is the cheapest time to fly from Baltimore to Seattle (BWI - SEA)?

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 47% on your trip compared to booking a flight in the morning.

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

The best pricing can be found in the month of October. Prices to Seattle from Baltimore average $361. You can even find prices in October for less than $361, as users have found deals to Seattle from as low as $197. The month of June appears to be one of the more expensive times to travel to Seattle from Baltimore. Flying in the targeted month can save you up to 74%.

Cheap flights from Baltimore to Seattle in July, August 2022

The best prices found for BWI to SEA flights for July, August
19 Aug - 23 Aug
$279pp
BWI
Baltimore/Washington
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
30 Aug - 13 Sep
$284pp
BWI
Baltimore/Washington
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
19 Aug - 24 Aug
$286pp
BWI
Baltimore/Washington
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington

Baltimore/Washington to Seattle 2022 flight deals

Cheap flights to Seattle from Baltimore found for this year
28 Sep - 12 Oct
$246pp
BWI
Baltimore/Washington
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
13 Sep - 27 Sep
$254pp
BWI
Baltimore/Washington
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
1 Oct - 12 Oct
$263pp
BWI
Baltimore/Washington
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington

Cheap Spirit Airlines flights from Baltimore to Seattle

28 Sep - 12 Oct
$246pp
BWI
Baltimore/Washington
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
13 Sep - 27 Sep
$254pp
BWI
Baltimore/Washington
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
27 Sep - 11 Oct
$272pp
BWI
Baltimore/Washington
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington

Cheap American Airlines flights from Baltimore to Seattle

1 Oct - 18 Oct
$273pp
BWI
Baltimore/Washington
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
BWI
Baltimore/Washington
22 Sep - 29 Sep
$313pp
BWI
Baltimore/Washington
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
 
1 STOP
BWI
Baltimore/Washington

Non-stop flights to Seattle from Baltimore

Save time with Baltimore to Seattle direct flight deals
5 Nov - 8 Nov
$356pp
BWI
Baltimore/Washington
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BWI
Baltimore/Washington
1 Oct - 4 Oct
$357pp
BWI
Baltimore/Washington
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BWI
Baltimore/Washington
5 Dec - 10 Dec
$358pp
BWI
Baltimore/Washington
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
BWI
Baltimore/Washington

Last minute flights from Baltimore to Seattle

Late deals on round-trip flights to Seattle from Baltimore, departing today and this week
12 Jul - 15 Jul
$413pp
BWI
Baltimore/Washington
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
11 Jul - 13 Jul
$446pp
BWI
Baltimore/Washington
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington
11 Jul - 22 Jul
$454pp
BWI
Baltimore/Washington
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
BWI
Baltimore/Washington

One-way flights to Seattle/Tacoma Intl from Baltimore

The cheapest one-way flights from Baltimore to Seattle
8:05 am - 8:23 am
Sun Country Air
1 Stop
27h 18m
BWI - SEA
Sun Country Air
11:35 am - 5:19 pm
Delta
1 Stop
8h 44m
BWI - SEA
Delta
$167
Delta
10:50 am - 7:57 pm
American Airlines
2 Stops
12h 07m
BWI - SEA
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Baltimore</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Baltimore to Seattle

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 45m on average. When it comes time to book airfare, you have a few options: there are 2 outbound flights from Baltimore/Washington to Seattle/Tacoma Intl offered by 11 different airlines.

Which airlines flying from Baltimore/Washington to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Alaska Airlines, Delta, and United Airlines flying from Baltimore/Washington to Seattle/Tacoma Intl have implemented new flexible cancellation policies.

Can I find flights from Baltimore to Seattle for under $300 on Cheapflights?

Yes, there are multiple flights from Baltimore to Seattle for under $300. The cheapest flight booked recently is on Spirit Airlines for just $246, but on average you can expect to pay $280.

Are there nonstop flights from Baltimore to Seattle for under $400 on Cheapflights?

Cheapflights has at least 20 direct flights from Baltimore to Seattle under $400. A good price for a nonstop flight from Baltimore to Seattle is less than $460.

Are there last-minute flights available from Baltimore to Seattle for under $500?

There are currently 20+ open flights from Baltimore to Seattle within the next 7 days for less than $500.

What days are nonstop flights available from Baltimore to Seattle?

Nonstop flights are available for this route on the following days: Sunday, Monday, Wednesday, Thursday, Friday, Saturday.

How popular is this Baltimore to Seattle flight route?

The Baltimore/Washington to Seattle/Tacoma Intl flight path was viewed by 32 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

How many flights depart from Baltimore to Seattle on average per day?

On average, you can expect to see 8 flights from Baltimore to Seattle a day.
Morning (6am - Noon) - 38% of flight departures
Evening (6pm - Midnight) - 63% of flight departures

How long is the flight from Baltimore to Seattle?

For as low as $246, Spirit Airlines can have you in Seattle from Baltimore in 8h 37m. Baltimore and Seattle are separated by a distance of 2342 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

According to our current data, Spirit Airlines ($246), American Airlines ($273), and Delta ($276) offers the cheapest pricing from Baltimore to Seattle. Spirit Airlines is 35% 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 $127 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $137 and Delta from $138 one-way.

What are the most popular airlines that fly from Baltimore to Seattle?

Endeavor Airlines, American Airlines and Alaska Airlines are the most popular 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 $197. On average you can expect to pay $878. The most popular route, (Baltimore/Washington - Seattle/Tacoma Intl), can usually be booked for $246.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Baltimore?

Information is based on travel restrictions for travel to Seattle/Tacoma Intl within the United States

Most visitors from Baltimore/Washington need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Baltimore/Washington are not required to present a negative COVID-19 PCR test or antigen result upon entering Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Baltimore/Washington are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Baltimore from Seattle?

Returning to Baltimore/Washington from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl are not required to present a negative COVID-19 PCR test or antigen result upon entering Baltimore/Washington.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Baltimore/Washington.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for Baltimore to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Baltimore/Washington to Seattle/Tacoma Intl

The chart below displays the airlines Cheapflights users traveling from Baltimore to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$12 $23 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Spirit Airlines
$80 $308 No cancel fee 65%
Frontier
$83 $230 No cancel fee 62%
American Airlines
$132 $427 No cancel fee 71%
United Airlines
$139 $433 No cancel fee 69%
Delta
$147 $397 No cancel fee N/A
JetBlue
$161 $244 No cancel fee 62%
Alaska Airlines
$168 $398 No cancel fee 75%
Sun Country Air
$174 $360 No cancel fee 83%

Hourly flight availability from Baltimore to Seattle

See what time of day planes typically take off from Baltimore towards Seattle.
Morning 6 AM to noon 53% of BWI to SEA departures
Early morning Midnight to 6 AM 32% of BWI to SEA departures
Afternoon Noon to 6 PM 15% of BWI to SEA departures
Evening 6 PM to midnight 0% of BWI to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Baltimore to Seattle
See how many times per day planes take to the skies headed from Baltimore to Seattle.
Sunday
2 daily flights
Monday
2 daily flights
Tuesday
2 daily flights
Wednesday
4 daily flights
Thursday
2 daily flights
Friday
2 daily flights
Saturday
1 daily flight
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