Cheap Flight Tickets from Seattle (SEA) to Boston (BOS), Starting at $226

Good to Know: Cheapest and Fastest SEA - BOS Flights

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

Cheapest Round Trip Flight

$282

AS Alaska Airlines • nonstop • 8h 46m

Oct 15 – Oct 19

The cheapest round trip flight from Seattle to Boston (SEA-BOS-SEA) is currently $282

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Cheapest Direct Flight

$306

AS Alaska Airlines • nonstop • 8h 47m

Oct 15

The cheapest nonstop flight from Seattle to Boston (SEA-BOS) is currently $306

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Fastest Flight

8h 45m

The fastest nonstop flight from Seattle to Boston (SEA-BOS) takes 8h 45m

Top Airlines Flying from Seattle to Boston

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 Seattle (SEA) to Boston (BOS)

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

Oct 15 - Oct 19, Economy
AS
Seattle → Boston
8h 46m
11:00 PM - 7:26 AM • nonstop
AS
Seattle → Boston
17h 6m
7:51 AM - 3:17 PM • 1 stop
$282
Alaska Airlines
Oct 15 - Oct 19, Economy
AS
Seattle → Boston
8h 47m
3:32 PM - 11:59 PM • nonstop
AS
Seattle → Boston
10h 17m
7:03 AM - 10:20 AM • nonstop
$306
Alaska Airlines
Oct 15 - Oct 19, Economy
DL
Seattle → Boston
8h 53m
11:08 AM - 7:41 PM • nonstop
DL
Seattle → Boston
12h 33m
12:05 PM - 4:58 PM • 1 stop
$331
Delta Airlines
Oct 15 - Oct 19, Economy
UA
Seattle → Boston
12h 17m
7:00 AM - 5:37 PM • 1 stop
UA
Seattle → Boston
13h 35m
10:36 AM - 3:51 PM • 1 stop
$350
United Airlines
Oct 15 - Oct 19, Economy
UA
Seattle → Boston
12h 32m
7:00 AM - 5:52 PM • 1 stop
UA
Seattle → Boston
13h 35m
10:36 AM - 3:51 PM • 1 stop
$350
United Airlines
Oct 15 - Oct 19, Economy
UA
Seattle → Boston
12h 36m
5:00 AM - 3:56 PM • 1 stop
UA
Seattle → Boston
13h 35m
10:36 AM - 3:51 PM • 1 stop
$350
United Airlines

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

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

FAQs on Seattle to Boston Flights

What are the airports in Seattle?
SEA
What’s the most popular airline flying from SEA to BOS?
The most popular airline flying from Seattle to Boston are
Can I fly from SEA to BOS non-stop?
Yes, you can fly SEA to BOS non-stop on
Which airlines fly nonstop between Seattle and Boston?
The non-stop flights between Seattle and Boston are .
What’s the earliest departure time from SEA to BOS Airport?
The earliest flight leaves SEA at 5:00 am and lands in BOS - Logan International
What are the airports in Boston?
BOS
Can I make changes to my Seattle to Boston 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 SEA to BOS?
Read the fare rules of the Seattle to Boston 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 Seattle and Boston?
operate flights between Seattle and Boston
How long does a flight from Seattle to Boston take?
It takes approximately 6 hour to fly non-stop from SEA to BOS, which is 2495.68 miles by air.
Which airlines provide the cheapest flights from Seattle (SEA) to Boston (BOS) ?
In the past couple of days, the cheapest tickets to BOS from SEA were found on UA : USD 350
Do I need a passport to fly between SEA and BOS?
No
What’s the latest departure time from SEA to BOS ?
The last flight leaves SEA at 11:10 pm

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

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

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