Cheap flights from Philadelphia, PA to San Diego, CA

Flights starting at $65. Choose between Frontier Airlines, Spirit Airlines, or United Airlines to find the best price.

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Tips to know when travelling to San Diego

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Book your trip to arrive at San Diego International, or McClellan–Palomar. The most popular airlines for this route are Frontier Airlines, Spirit Airlines, United Airlines, Alaska Airlines, and JetBlue Airways. Philadelphia and San Diego have 310 direct flights per week.

Check-in for a flight from Philadelphia to San Diego

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight

Weather in San Diego

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January18°C10°C
February17°C10°C
March18°C11°C
April19°C12°C
May20°C14°C
June22°C16°C
July24°C18°C
August25°C19°C
September25°C19°C
October23°C16°C
November21°C13°C
December17°C11°C
Hottest Month
25°C
August
Coldest month
10°C
February
Sunny days
344
days per year

14 day forecast

Thursday
4 Apr
95%
16°C12°C
11 Apr
21°C16°C
Friday
5 Apr
93%
13°C11°C
12 Apr
19°C15°C
Saturday
6 Apr
85%
15°C11°C
13 Apr
19°C14°C
Sunday
7 Apr
16°C11°C
14 Apr
19°C14°C
Monday
8 Apr
17°C13°C
15 Apr
20°C14°C
Tuesday
9 Apr
21°C14°C
16 Apr
21°C15°C
Wednesday
10 Apr
22°C16°C
17 Apr
18°C14°C

Frequently asked questions

What are the most popular routes to and from Philadelphia?
What are the most popular routes to and from San Diego?
Which airports are there in Philadelphia?
What airports are near Philadelphia?
What airports are near San Diego?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Philadelphia and San Diego?
What is Virtual Interlining and how do I use it?
Which airlines fly between Philadelphia and San Diego?
When's the best time to travel between Philadelphia and San Diego?
What flights operate between Philadelphia and San Diego?
How many airports are there near Philadelphia?
How many airports are there near San Diego?
What time do nonstop (direct) flights between Philadelphia and San Diego depart?
What time do nonstop (direct) flights between Philadelphia and San Diego arrive?
What time do flights between Philadelphia and San Diego depart?
What time do flights between Philadelphia and San Diego arrive?

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Flights from Philadelphia

Flights to San Diego

Popular routes

The nearest countries with flights to San Diego

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