Find cheap flights from Massachusetts to Seattle/Tacoma Airport

SEA

Find cheap flights from Massachusetts to Seattle/Tacoma Airport

Round-trip
Economy
Boston (BOS)
Seattle/Tacoma Intl
Fri 7/10
Fri 7/17
Any month
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Search hundreds of travel sites at once for deals on flights to Seattle/Tacoma Airport

Good to know

Low season

September Best time to beat the crowds with an average 5% drop in price.

High season

August Most popular time to fly with an average 10% increase in price.

Average price of a round-trip

$355 (avg. price over the last 2 weeks)

Good deal for a round-trip

$227 or less

FAQs for booking Massachusetts to Seattle/Tacoma Airport flights

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

Top 3 airlines serving Massachusetts 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 Massachusetts to Seattle/Tacoma Airport (round-trip)

Airports
Origin
Boston
$119
only
$119
Destination
Seattle
$119
only
$119
Sat, Aug 8
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
17h 10m
Tue, Aug 25
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 18 days
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 15m
Sat, Aug 8
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
9h 40m
Trip: 4 days
Based on null reviews
Sun, Aug 9
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Tue, Aug 25
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 17 days
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
17h 10m
Mon, Aug 17
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
11h 50m
Trip: 6 days
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Sun, Aug 9
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 58m
Trip: 5 days
Based on null reviews
Thu, Aug 6
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Mon, Aug 10
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 5 days
Based on null reviews
Mon, Aug 10
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Mon, Aug 17
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 8 days
Based on null reviews
Wed, Jul 29
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
12h 18m
Mon, Aug 17
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 20 days
Based on null reviews
Tue, Aug 11
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
14h 55m
Wed, Aug 26
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 16 days
Based on null reviews
Sun, Jul 26
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
22h 47m
Mon, Aug 10
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Trip: 16 days
Based on null reviews
Tue, Aug 18
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Tue, Aug 25
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Trip: 8 days
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Sun, Aug 9
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 58m
Trip: 5 days
Based on null reviews
Tue, Aug 11
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Tue, Aug 25
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Trip: 15 days
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Mon, Aug 17
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
23h 39m
Trip: 6 days
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Wed, Aug 12
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 8 days
Based on null reviews
Mon, Jul 13
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 13m
Wed, Aug 5
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 24 days
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Thu, Aug 13
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 52m
Trip: 2 days
Based on null reviews
Wed, Aug 5
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 15m
Sun, Aug 9
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 10m
Trip: 5 days
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Sun, Aug 16
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
7h 44m
Trip: 5 days
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Sun, Aug 16
SEA
Seattle/Tacoma Airport
BOS
Boston Logan Airport
14h 26m
Trip: 5 days
Based on null reviews

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

Airports
Origin
Boston
$61
only
$61
Destination
Seattle
$61
only
$61
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Based on null reviews
Sun, Aug 9
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
9h 26m
Based on null reviews
Tue, Aug 11
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
10h 15m
Based on null reviews
Wed, Jul 8
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
6h 06m
Based on null reviews
Wed, Jul 8
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
9h 37m
Based on null reviews
Wed, Aug 12
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Based on null reviews
Sun, Aug 16
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Based on null reviews
Fri, Aug 14
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Based on null reviews
Sun, Jul 26
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
30h 22m
Based on null reviews
Sun, Jul 19
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
30h 22m
Based on null reviews
Fri, Aug 7
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
13h 10m
Based on null reviews
Thu, Jul 9
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
26h 57m
Based on null reviews
Tue, Jul 14
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
24h 51m
Based on null reviews
Sat, Jul 4
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
18h 12m
Based on null reviews
Mon, Jul 20
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
32h 26m
Based on null reviews
Thu, Jul 16
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
26h 57m
Based on null reviews
Mon, Jul 27
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
32h 26m
Based on null reviews
Thu, Jul 9
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
36h 52m
Based on null reviews
Wed, Sep 2
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
14h 55m
Based on null reviews
Mon, Jul 13
BOS
Boston Logan Airport
SEA
Seattle/Tacoma Airport
32h 26m
Based on null reviews
*
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.

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