Book United Seattle to Boston flight deals from $210

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Search flights from Seattle to Boston (SEA - BOS)

March

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Depart: 03/12/19

Return: 03/26/19
from$ 210*Viewed: 1 hour ago

Depart: 03/13/19

Return: 03/27/19
from$ 210*Viewed: 1 hour ago

Depart: 03/19/19

Return: 04/02/19
from$ 234*Viewed: 1 hour ago

April

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Depart: 04/10/19

Return: 04/24/19
from$ 250*Viewed: 1 hour ago

Depart: 04/24/19

Return: 05/08/19
from$ 250*Viewed: 1 hour ago

Depart: 04/30/19

Return: 05/14/19
from$ 250*Viewed: 1 hour ago

May

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Depart: 05/01/19

Return: 05/15/19
from$ 279*Viewed: 1 hour ago

Depart: 05/21/19

Return: 06/04/19
from$ 254*Viewed: 1 hour ago

Depart: 05/29/19

Return: 06/08/19
from$ 283*Viewed: 1 day ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Plan ahead for flights from Seattle to Boston

from
to
Type
Dates
Price*
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 03/12/19
Return: 03/26/19
from$ 210*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 03/13/19
Return: 03/27/19
from$ 210*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 03/19/19
Return: 04/02/19
from$ 234*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 03/20/19
Return: 04/03/19
from$ 234*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 03/26/19
Return: 04/09/19
from$ 234*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 04/09/19
Return: 04/23/19
from$ 250*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 04/10/19
Return: 04/24/19
from$ 250*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 04/16/19
Return: 04/30/19
from$ 250*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 04/24/19
Return: 05/08/19
from$ 250*Viewed: 1 hour ago
Seattle (SEA)
to Boston (BOS)
Roundtrip
Depart: 04/30/19
Return: 05/14/19
from$ 250*Viewed: 1 hour ago
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Boston

37 °FSaturday02/23/19
38 °FSunday02/24/19
32 °FMonday02/25/19
26 °FTuesday02/26/19
42 °FWednesday02/27/19
23 °FThursday02/28/19
36 °FFriday03/01/19
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