Cheap flights from Duluth, MN to San Diego, CA

Flights starting at £157. Choose between United Airlines, Sun Country Airlines, or Spirit Airlines to find the best price.

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Book your trip to arrive at San Diego International, San Diego, CA - Old Town, San Diego, CA - La Jolla, San Diego, CA - Seaport Village, or San Diego-SDSU Transit Center. The most popular airlines for this route are United Airlines, Sun Country Airlines, Spirit Airlines, Frontier Airlines, and JetBlue Airways. Duluth and San Diego have 52 direct flights per week.

Check-in for a flight from Duluth to San Diego

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Sun Country AirlinesSCXSYYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 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

Monday
18 Mar
88%
19°C14°C
25 Mar
85%
16°C13°C
Tuesday
19 Mar
20°C14°C
26 Mar
17°C13°C
Wednesday
20 Mar
20°C15°C
27 Mar
89%
16°C13°C
Thursday
21 Mar
19°C14°C
28 Mar
86%
14°C12°C
Friday
22 Mar
19°C14°C
29 Mar
87%
16°C13°C
Saturday
23 Mar
53%
18°C15°C
30 Mar
85%
17°C14°C
Sunday
24 Mar
85%
15°C13°C
31 Mar
19°C13°C

Frequently asked questions

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

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