Cheap Flight Tickets from Boston (BOS) to Seattle (SEA), Starting at $286

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

$485

DL Delta Airlines • 1 stop • 48h 49m

Dec 13 – Dec 20

The cheapest round trip flight from Boston to Seattle (BOS-SEA-BOS) is currently $485

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Cheapest Direct Flight

$286

DL Delta Airlines • nonstop • 10h 31m

Dec 12

The cheapest nonstop flight from Boston to Seattle (BOS-SEA) is currently $286

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Fastest Flight

6m

The fastest nonstop flight from Boston to Seattle (BOS-SEA) takes 6m

Top Airlines Flying from Boston to Seattle

Delta Airline, DL

Delta Airlines

Southwest Airlines-WN

Southwest 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.

Dec 13 - Dec 20, Economy
DL
Boston → Seattle
48h 49m
6:20 PM - 8:49 PM • 1 stop
DL
Boston → Seattle
8h 42m
11:15 PM - 7:37 AM • nonstop
$485
Delta Airlines
Dec 13 - Dec 20, Economy
DL
Boston → Seattle
13h 25m
4:59 PM - 10:04 PM • 1 stop
DL
Boston → Seattle
8h 42m
11:15 PM - 7:37 AM • nonstop
$492
Delta Airlines
Dec 13 - Dec 20, Economy
DL
Boston → Seattle
15h 35m
6:05 AM - 12:40 PM • 1 stop
DL
Boston → Seattle
12h 13m
11:59 PM - 10:32 AM • 1 stop
$536
Delta Airlines
Dec 13 - Dec 20, Economy
DL
Boston → Seattle
14h 18m
9:05 AM - 3:03 PM • 1 stop
DL
Boston → Seattle
12h 13m
11:59 PM - 10:32 AM • 1 stop
$536
Delta Airlines
Dec 13 - Dec 20, Economy
DL
Boston → Seattle
18h 50m
12:20 PM - 8:50 PM • 1 stop
DL
Boston → Seattle
8h 42m
11:15 PM - 7:37 AM • nonstop
$592
Delta Airlines
Dec 13 - Dec 20, Economy
DL
Boston → Seattle
18h 52m
1:30 PM - 10:02 PM • 1 stop
DL
Boston → Seattle
12h 13m
11:59 PM - 10:32 AM • 1 stop
$636
Delta Airlines

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 6:05 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 DL : USD 592
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 7:26 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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