Cheap flights from St. Louis to San Diego from $192

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1 stop
Sat, Apr 12
St. Louis STLSan Diego SAN

$192
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1 stop
Sat, Apr 12
St. Louis STLSan Diego SAN

$192
Search
1 stop
Sat, Apr 12
St. Louis STLSan Diego SAN

$192
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1 stop
Fri, Apr 11
St. Louis STLSan Diego SAN

$222
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1 stop
Mon, Apr 7
St. Louis STLSan Diego SAN

$225
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1 stop
Mon, Apr 7
St. Louis STLSan Diego SAN

$225
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Prices updated:

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1 stop
Mon, Apr 7 – Thu, Apr 10
St. Louis STLSan Diego SAN

$390
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1 stop
Mon, Apr 7 – Thu, Apr 10
St. Louis STLSan Diego SAN

$390
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1 stop
Mon, Apr 7 – Thu, Apr 10
St. Louis STLSan Diego SAN

$390
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1 stop
Mon, Apr 7 – Thu, Apr 10
St. Louis STLSan Diego SAN

$390
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1 stop
Mon, Apr 7 – Thu, Apr 10
St. Louis STLSan Diego SAN

$390
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1 stop
Mon, Apr 7 – Wed, Apr 9
St. Louis STLSan Diego SAN

$433
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Prices updated:

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How much do flights to San Diego cost?

Key info about flying to San Diego

Depart from
St. Louis Lambert International
Arrive to
San Diego International
Average flights per week
40
Flight distance
Worth visiting
Griffith Observatory

Check-in for a flight from St. Louis to San Diego

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUAYes
Alaska AirlinesASAASNo
Hawaiian AirlinesHALHANo

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
346
days per year

14 day forecast

Friday
14 Mar
67%
14°C11°C
21 Mar
19°C13°C
Saturday
15 Mar
17°C11°C
22 Mar
16°C13°C
Sunday
16 Mar
16°C6°C
23 Mar
17°C13°C
Monday
17 Mar
13°C10°C
24 Mar
83%
15°C14°C
Tuesday
18 Mar
19°C11°C
25 Mar
87%
16°C13°C
Wednesday
19 Mar
22°C14°C
26 Mar
19°C12°C
Thursday
20 Mar
18°C13°C
27 Mar
22°C15°C
Book your trip to arrive at San Diego International, or McClellan–Palomar. The most popular airlines for this route are United Airlines, Alaska Airlines, and Hawaiian Airlines. St. Louis and San Diego have 40 direct flights per week.

Frequently asked questions

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What time do nonstop (direct) flights between St. Louis and San Diego depart?
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What time do flights between St. Louis and San Diego depart?
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Flights from St. Louis

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