Find cheap flights from Baltimore to Seattle/Tacoma Airport

BWI - SEA

Find cheap flights from Baltimore to Seattle/Tacoma Airport

Round-trip
Economy
Baltimore (BWI)
Seattle/Tacoma Intl
Fri 7/10
Fri 7/17
Any month
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Good to know

Low season

February Best time to beat the crowds with an average 20% drop in price.

High season

December Most popular time to fly with an average 19% increase in price.

Average price of a round-trip

$321 (avg. price over the last 2 weeks)

Good deal for a round-trip

$305 or less

When to book flights from Baltimore to Seattle/Tacoma Intl

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for finding a cheap flight

  • Looking for a cheap flight? 25% of our users found flights on this route for $209 or less.
  • The cheapest flight from Baltimore to Seattle/Tacoma Airport was found 42 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is February.
  • Morning departure is around 38% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking Baltimore to Seattle/Tacoma Airport flights

Are flight prices cheaper from Baltimore to Seattle/Tacoma Airport because of Coronavirus (COVID-19)?

How long does a flight from Baltimore to Seattle/Tacoma Airport take?

How many flights are there between Baltimore and Seattle/Tacoma Airport?

Which airlines provide the cheapest flights from Baltimore to Seattle/Tacoma Airport?

Do I need a passport to fly between Baltimore and Seattle/Tacoma Airport?

Which airlines fly most frequently between Baltimore and Seattle/Tacoma Airport?

What’s the cheapest day of the week to fly Baltimore to Seattle/Tacoma Airport?

How does KAYAK’s flight Price Forecast tool help me choose the right time to buy?

Top 3 airlines serving Baltimore/Washington to Seattle/Tacoma Intl

Scores according to KAYAK customer reviews

8.2
JetBlue
Overall score based on 19,180 reviews
8.3
Boarding
8.3
Comfort
8.6
Crew
7.9
Entertainment
7.8
Food
Airline reviews
Read more about JetBlue

Book cheap flights from Baltimore to Seattle/Tacoma Airport (round-trip)

Airports
Origin
Baltimore
$104
only
$104
Destination
Seattle
$104
only
$104
Sat, Aug 15
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 40m
Sat, Aug 15
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
13h 58m
Trip: 1 days
Based on null reviews
Tue, Aug 11
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Thu, Aug 13
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
16h 28m
Trip: 3 days
Based on null reviews
Wed, Aug 5
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Sat, Aug 15
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 11 days
Based on null reviews
Tue, Aug 11
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Thu, Aug 13
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 3 days
Based on null reviews
Sat, Aug 15
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Sat, Aug 29
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 15 days
Based on null reviews
Sat, Aug 15
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Fri, Aug 21
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 7 days
Based on null reviews
Sat, Aug 15
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Sun, Aug 30
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
7h 44m
Trip: 16 days
Based on null reviews
Mon, Aug 17
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Wed, Aug 26
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 15m
Trip: 10 days
Based on null reviews
Wed, Aug 5
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 40m
Sat, Aug 15
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 11 days
Based on null reviews
Tue, Aug 11
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Wed, Aug 19
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 15m
Trip: 9 days
Based on null reviews
Wed, Aug 26
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Tue, Sep 1
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 7 days
Based on null reviews
Wed, Aug 5
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Fri, Aug 14
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
8h 59m
Trip: 10 days
Based on null reviews
Thu, Aug 6
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Wed, Aug 12
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 7 days
Based on null reviews
Wed, Aug 5
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Sun, Aug 9
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
8h 29m
Trip: 5 days
Based on null reviews
Thu, Aug 6
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 40m
Tue, Aug 11
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 6 days
Based on null reviews
Wed, Aug 12
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 40m
Sun, Aug 16
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 5 days
Based on null reviews
Wed, Aug 12
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 40m
Fri, Aug 21
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 10 days
Based on null reviews
Thu, Aug 13
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Sat, Aug 22
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 10 days
Based on null reviews
Wed, Aug 5
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Fri, Aug 14
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
13h 58m
Trip: 10 days
Based on null reviews
Fri, Aug 7
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Sat, Aug 15
SEA
Seattle/Tacoma Airport
BWI
Baltimore/Washington Airport
5h 05m
Trip: 9 days
Based on null reviews
Show more results

Book cheap flights from Baltimore to Seattle/Tacoma Airport (one-way)

Airports
Origin
Baltimore
$43
only
$43
Destination
Seattle
$43
only
$43
Wed, Aug 19
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Based on null reviews
Mon, Aug 10
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Based on null reviews
Sat, Aug 1
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
40h 55m
Based on null reviews
Mon, Aug 10
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
7h 46m
Based on null reviews
Wed, Aug 19
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
9h 15m
Based on null reviews
Wed, Aug 19
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 40m
Based on null reviews
Fri, Aug 14
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Based on null reviews
Sun, Aug 9
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Based on null reviews
Sat, Jul 18
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
40h 55m
Based on null reviews
Fri, Aug 14
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 40m
Based on null reviews
Sat, Jul 18
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
40h 55m
Based on null reviews
Thu, Aug 6
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
7h 46m
Based on null reviews
Sat, Aug 1
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
23h 22m
Based on null reviews
Wed, Aug 19
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
8h 16m
Based on null reviews
Sat, Jul 25
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
23h 22m
Based on null reviews
Sun, Jul 26
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
31h 46m
Based on null reviews
Fri, Sep 11
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
5h 50m
Based on null reviews
Mon, Jul 13
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
30h 05m
Based on null reviews
Tue, Jul 28
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
18h 59m
Based on null reviews
Mon, Jul 27
BWI
Baltimore/Washington Airport
SEA
Seattle/Tacoma Airport
19h 47m
Based on null reviews
Show more results
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.
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