Cheap flights from San Diego to Portsmouth from $331

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2 stops
Mon, Nov 23
San Diego SANPortsmouth PSM

$331
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3 stops
Tue, Nov 24
San Diego SANPortsmouth PSM

$384
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1 stop
Tue, Nov 24
San Diego SANPortsmouth PSM

$396
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3 stops
Tue, Nov 24
San Diego SANPortsmouth PSM

$400
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3 stops
Mon, Nov 23
San Diego SANPortsmouth PSM

$414
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2 stops
Fri, Nov 27
San Diego SANPortsmouth PSM

$475
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2 stops
Thu, Nov 26 – Tue, Dec 1
San Diego SANPortsmouth PSM

$643
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2 stops
Fri, Nov 27 – Tue, Dec 1
San Diego SANPortsmouth PSM

$705
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2 stops
Fri, Nov 27 – Tue, Dec 1
San Diego SANPortsmouth PSM

$722
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2 stops
Fri, Nov 27 – Tue, Dec 1
San Diego SANPortsmouth PSM

$749
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2 stops
Fri, Nov 27 – Tue, Dec 1
San Diego SANPortsmouth PSM

$759
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2 stops
Fri, Nov 27 – Tue, Dec 1
San Diego SANPortsmouth PSM

$857
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How much do flights to Portsmouth cost?

Key info about flying to Portsmouth

Depart from
San Diego International
Arrive to
Portsmouth International Airport at Pease
Average flights per week
52
Flight distance
Worth visiting
Cape Cod

Check-in for a flight from San Diego to Portsmouth

NameCarrier codeIATA CodePassport needed during booking
BREEZE MXNo
-
Frontier AirlinesFFTF9No
JetBlue AirwaysJBUB6No
Alaska AirlinesASAASNo

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
June22°C13°C
July25°C17°C
August25°C17°C
September21°C13°C
October15°C8°C
November9°C2°C
December3°C-2°C
Hottest Month
25°C
July
Coldest month
-6°C
January
Sunny days
256
days per year
Snow days
19
days per year

14 day forecast

Saturday
31 Oct
11°C4°C
7 Nov
86%
18°C12°C
Sunday
1 Nov
14°C2°C
8 Nov
26%
13°C10°C
Monday
2 Nov
19°C8°C
9 Nov
15%
13°C7°C
Tuesday
3 Nov
29%
17°C11°C
10 Nov
12°C6°C
Wednesday
4 Nov
17%
18°C11°C
11 Nov
12°C5°C
Thursday
5 Nov
85%
19°C12°C
12 Nov
18%
12°C5°C
Friday
6 Nov
82%
19°C15°C
13 Nov
16%
10°C5°C
Travelers usually depart from San Diego International, or McClellan–Palomar when they travel from San Diego to Portsmouth. The most popular airlines for this route are BREEZE, Frontier Airlines, JetBlue Airways, and Alaska Airlines. San Diego and Portsmouth have 52 direct flights per week.

Frequently asked questions

What are the most popular routes to and from San Diego?

What are the most popular routes to and from Portsmouth?

Which airports are there in San Diego?

What airports are near San Diego?

What airports are near Portsmouth?

Which airlines fly between San Diego and Portsmouth?

When’s the best time to travel between San Diego and Portsmouth?

What flights operate between San Diego and Portsmouth?

How many airports are there near San Diego?

How many airports are there near Portsmouth?

What time do nonstop (direct) flights between San Diego and Portsmouth depart?

What time do nonstop (direct) flights between San Diego and Portsmouth arrive?

What time do flights between San Diego and Portsmouth depart?

What time do flights between San Diego and Portsmouth arrive?

Explore alternative trips

Flights from San Diego

Flights to Portsmouth

Popular routes

The nearest countries with flights to Portsmouth

Here is a list of countries people are flying from

Other destination countries from San Diego

Here is a list of countries people are flying to

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