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The cheapest flights right now

Boston – Seattle
Outbound – Sep 27, 2026
B6BOS
direct
6h 17m
SEA
Return – Oct 4, 2026
B6SEA
direct
5h 24m
BOS
$334
yesterday
Boston – Seattle
Outbound – Sep 26, 2026
ASBOS
direct
6h 13m
SEA
Return – Oct 4, 2026
B6SEA
direct
5h 24m
BOS
$382
yesterday

* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.

The best flight deals for a week

Boston – Seattle
Outbound – Sep 27, 2026
B6BOS
direct
6h 17m
SEA
Return – Oct 4, 2026
B6SEA
direct
5h 24m
BOS
$334
yesterday
Boston – Seattle
Outbound – Sep 26, 2026
ASBOS
direct
6h 13m
SEA
Return – Oct 4, 2026
B6SEA
direct
5h 24m
BOS
$382
yesterday

* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.

info departure city :
Boston, USA
airport :
Boston-Logan International Airport (BOS)
local time :

Boston is a city in the country USA, the time zone is [[timezone]]. In Boston, it is currently {fromLocalTime}, the temperature is on average 19°C, with a minimum of 17°C and a maximum of 20°C.

The city of Boston has 1 airport(s): Boston-Logan

destination info :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :

Seattle is in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {toLocalTime}, the temperature is on average 17°C, with a minimum of 12°C and a maximum of 22°C.

The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County

Useful info about Seattle

What is the least touristic period to go to Seattle?

If you want to visit Seattle during the least touristic period, choose the month of March.

What is the most popular time to travel to Seattle?

In Seattle, the most popular month is July. It is during this period that the prices offered by airlines are also the highest.

When should I book my flight from Boston to Seattle?

This information is not available at this time.

What are the arrival and destination airports when traveling between Boston and Seattle?

This information is not available at this time.

How to reach Boston airport from the city centre?

This information is not available at this time.

Are there other means of transportation to go from Boston to Seattle?

Airplane is the only means of transportation listed on Liligo for this journey.

Are there big differences in weather between Boston and Seattle?

In summer, the average temperature is 18°C in Seattle and 22°C in Boston. The average rainfall in summer is 37 mm in Seattle and 101 mm in Boston. In summer, it is warmer in Boston and it rains less in Seattle. In winter, it is colder in Seattle and it rains more in Seattle.

Prepare your stay in Seattle

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