Cheap flights from Seattle, WA to Portsmouth, MA

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How much do flights to Portsmouth cost?

Key info about flying to Portsmouth

Depart from
Seattle–Tacoma International
Arrive to
Portsmouth International Airport at Pease
Average flights per week
103
Flight distance
Worth visiting
Cape Cod

Great deals from Seattle to Portsmouth

Check-in for a flight from Seattle to Portsmouth

NameCarrier codeIATA CodePassport needed during booking
Allegiant AirAAYG4No
Alaska AirlinesASAASNo
Frontier AirlinesFFTF9No
Spirit AirlinesNKSNKNo
Sun Country AirlinesSCXSYYes

Weather in Portsmouth

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January0°C-6°C
February1°C-5°C
March5°C-1°C
April11°C3°C
May17°C9°C
June21°C13°C
July25°C17°C
August25°C17°C
September21°C13°C
October15°C8°C
November9°C2°C
December3°C-1°C
Hottest Month
25°C
July
Coldest month
-6°C
January
Sunny days
255
days per year
Snow days
19
days per year

14 day forecast

Friday
13 Dec
3°C-4°C
20 Dec
75%
4°C-1°C
Saturday
14 Dec
2°C-5°C
21 Dec
4°C-2°C
Sunday
15 Dec
1°C-7°C
22 Dec
86%
6°C1°C
Monday
16 Dec
86%
3°C-3°C
23 Dec
89%
7°C1°C
Tuesday
17 Dec
81%
12°C3°C
24 Dec
3°C-1°C
Wednesday
18 Dec
7°C1°C
25 Dec
5°C-1°C
Thursday
19 Dec
85%
3°C2°C
26 Dec
0°C-5°C
Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Portsmouth. The most popular airlines for this route are Allegiant Air, Alaska Airlines, Frontier Airlines, Spirit Airlines, and Sun Country Airlines. Seattle and Portsmouth have 103 direct flights per week.

Frequently asked questions

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