Cheap Flight Tickets from Boston (BOS) to Seattle (SEA), Starting at $134

Good to Know: Cheapest and Fastest BOS - SEA Flights

Useful information for finding best airline tickets from Logan International to Seattle Tacoma International on your next trip.

Cheapest Round Trip Flight

$134

WN Southwest Airlines • 1 stop • 17h

Aug 10 – Aug 13

The cheapest round trip flight from Boston to Seattle (BOS-SEA-BOS) is currently $134

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Cheapest Direct Flight

$292

AS Alaska Airlines • nonstop • 10h 23m

Aug 10

The cheapest nonstop flight from Boston to Seattle (BOS-SEA) is currently $292

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Fastest Flight

10h 21m

The fastest nonstop flight from Boston to Seattle (BOS-SEA) takes 10h 21m

Top Airlines Flying from Boston to Seattle

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Sun Country Airlines (SY)

Sun Country Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Boston (BOS) to Seattle (SEA)

Compare and book low fare round-trip air tickets from Boston to Seattle. Ideal for travelers with confirmed return itineraries.

Aug 10 - Aug 13, Economy
WN
Boston → Seattle
17h
7:40 AM - 3:00 PM • 1 stop
WN
Boston → Seattle
10h 55m
11:05 PM - 9:00 AM • 1 stop
$134
Southwest Airlines
Aug 10 - Aug 13, Economy
WN
Boston → Seattle
31h 45m
8:55 PM - 1:00 PM • 1 stop
WN
Boston → Seattle
22h 20m
11:05 PM - 3:45 PM • 2 stops
$548
Southwest Airlines
Aug 10 - Aug 13, Economy
B6
Boston → Seattle
10h 23m
7:30 PM - 10:53 PM • nonstop
AS
Boston → Seattle
15h 55m
4:45 PM - 5:40 AM • 1 stop
$1283
JetBlue Airways
Aug 10 - Aug 13, Economy
UA
Boston → Seattle
12h 14m
8:00 AM - 7:36 PM • 1 stop
UA
Boston → Seattle
10h 59m
7:00 AM - 7:19 PM • 1 stop
$1411
United Airlines
Aug 10 - Aug 13, Economy
B6
Boston → Seattle
65h 31m
8:33 PM - 9:04 AM • 2 stops
X4
Boston → Seattle
23h 23m
2:45 PM - 7:48 AM • 1 stop
$1633
JetBlue Airways
Aug 10 - Aug 13, Economy
B6
Boston → Seattle
10h 21m
7:09 AM - 10:30 AM • nonstop
AM
Boston → Seattle
95h 5m
11:59 PM - 12:04 PM • 3 stops
$1671
JetBlue Airways

Fly from Boston to Seattle with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Boston to Seattle? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Boston to Seattle Flights

What are the airports in Boston?
BOS
What’s the most popular airline flying from BOS to SEA?
The most popular airline flying from Boston to Seattle are
Can I fly from BOS to SEA non-stop?
Yes, you can fly BOS to SEA non-stop on
Which airlines fly nonstop between Boston and Seattle?
The non-stop flights between Boston and Seattle are .
What’s the earliest departure time from BOS to SEA Airport?
The earliest flight leaves BOS at 7:09 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Boston to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from BOS to SEA?
Read the fare rules of the Boston to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Boston and Seattle?
operate flights between Boston and Seattle
How long does a flight from Boston to Seattle take?
It takes approximately 6 hour to fly non-stop from BOS to SEA, which is 2495.68 miles by air.
Which airlines provide the cheapest flights from Boston (BOS) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from BOS were found on B6 : USD 1283
Do I need a passport to fly between BOS and SEA?
No
What’s the latest departure time from BOS to SEA ?
The last flight leaves BOS at 8:55 pm

Boston (BOS) to Seattle (SEA): Airport Information

Origin Airport Logan International, Boston, US
Destination Airport Seattle Tacoma International , Seattle, US
Distance 2496 miles

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