Book United Portland, ME to Seattle flight deals from $321

Select journey type

Enter to select travel class and passengers

Search flights from Portland, ME to Seattle (PWM - SEA)

October

Skip to content

Friday 19th

Return Saturday 3rd
from$ 321*Viewed: 5 hours ago

Tuesday 23rd

Return Wednesday 7th
from$ 331*Viewed: 5 hours ago

Tuesday 30th

Return Wednesday 14th
from$ 331*Viewed: 5 hours ago

November

Skip to content

Wednesday 7th

Return Thursday 22nd
from$ 368*Viewed: 5 hours ago

Tuesday 13th

Return Wednesday 28th
from$ 381*Viewed: 5 hours ago

Wednesday 14th

Return Thursday 29th
from$ 331*Viewed: 5 hours ago

December

Skip to content

Saturday 1st

Return Sunday 16th
from$ 331*Viewed: 5 hours ago

Sunday 2nd

Return Monday 17th
from$ 448*Viewed: 5 hours ago

Saturday 8th

Return Sunday 23rd
from$ 448*Viewed: 5 hours 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..
Downtown Seattle at sunset

Plan ahead for flights from Portland, ME to Seattle

from
to
Type
Dates
Price*
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Fri 19 Oct 2018
Return Sat 3 Nov 2018
from$ 321*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Tue 23 Oct 2018
Return Wed 7 Nov 2018
from$ 331*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Tue 30 Oct 2018
Return Wed 14 Nov 2018
from$ 331*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Wed 14 Nov 2018
Return Thu 29 Nov 2018
from$ 331*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Sat 1 Dec 2018
Return Sun 16 Dec 2018
from$ 331*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Fri 12 Oct 2018
Return Sat 27 Oct 2018
from$ 334*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Sat 13 Oct 2018
Return Sun 28 Oct 2018
from$ 334*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Fri 26 Oct 2018
Return Sat 10 Nov 2018
from$ 334*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Sat 6 Oct 2018
Return Sun 21 Oct 2018
from$ 343*Viewed: 5 hours ago
Portland, ME (PWM)
to Seattle (SEA)
Roundtrip
Depart Wed 17 Oct 2018
Return Thu 1 Nov 2018
from$ 344*Viewed: 5 hours 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.