Cheap flights from St. Louis to San Juan from $132

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1 stop
Mon, May 19
St. Louis STLSan Juan SJU

$132
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2 stops
Tue, May 20
St. Louis STLSan Juan SJU

$136
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1 stop
Thu, May 15
St. Louis STLSan Juan SJU

$236
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1 stop
Thu, May 15
St. Louis STLSan Juan SJU

$236
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1 stop
Thu, May 15
St. Louis STLSan Juan SJU

$236
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1 stop
Thu, May 15
St. Louis STLSan Juan SJU

$236
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Prices updated:

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1 stop
Wed, May 14 – Sat, May 17
St. Louis STLSan Juan SJU

$422
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1 stop
Wed, May 14 – Sat, May 17
St. Louis STLSan Juan SJU

$422
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1 stop
Wed, May 14 – Sat, May 17
St. Louis STLSan Juan SJU

$443
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1 stop
Wed, May 14 – Sat, May 17
St. Louis STLSan Juan SJU

$460
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1 stop
Wed, May 14 – Sat, May 17
St. Louis STLSan Juan SJU

$460
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1 stop
Tue, May 20 – Sat, May 24
St. Louis STLSan Juan SJU

$482
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Prices updated:

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How much do flights to San Juan cost?

Key info about flying to San Juan

Depart from
St. Louis Lambert International
Arrive to
Luis Muñoz Marín International
Average flights per week
91
Flight distance

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

NameCarrier codeIATA CodePassport needed during booking
American AirlinesAALAANo
United AirlinesUALUANo

Weather in San Juan

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January27°C22°C
February27°C22°C
March27°C22°C
April28°C23°C
May29°C24°C
June30°C25°C
July30°C25°C
August30°C25°C
September30°C25°C
October29°C25°C
November28°C24°C
December27°C23°C
Hottest Month
30°C
August
Coldest month
22°C
February
Sunny days
252
days per year

14 day forecast

Saturday
26 Apr
77%
29°C25°C
3 May
87%
28°C24°C
Sunday
27 Apr
88%
28°C24°C
4 May
86%
27°C24°C
Monday
28 Apr
28°C26°C
5 May
27°C24°C
Tuesday
29 Apr
85%
28°C24°C
6 May
28°C23°C
Wednesday
30 Apr
88%
27°C24°C
7 May
88%
27°C24°C
Thursday
1 May
89%
27°C24°C
8 May
81%
28°C24°C
Friday
2 May
81%
28°C24°C
9 May
89%
27°C25°C
Book your trip to arrive at Luis Muñoz Marín International, or Fernando Luis Ribas Dominicci. The most popular airlines for this route are American Airlines, and United Airlines. St. Louis and San Juan have 91 direct flights per week.

Frequently asked questions

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