Cheap flights from London to San Juan from $344

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2 stops
Tue, Apr 22
London STNSan Juan SJU

$401
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1 stop
Sat, Apr 19
London LGWSan Juan SJU

$424
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1 stop
Mon, Apr 21
London LGWSan Juan SJU

$344
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1 stop
Thu, Apr 17
London LGWSan Juan SJU

$451
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1 stop
Fri, Apr 18
London LGWSan Juan SJU

$467
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1 stop
Fri, Apr 18
London LGWSan Juan SJU

$487
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Prices updated:

1 stop
Fri, Apr 18 – Wed, Apr 23
London LGWSan Juan SJU

$820
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1 stop
Fri, Apr 18 – Wed, Apr 23
London LGWSan Juan SJU

$840
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1 stop
Fri, Apr 18 – Wed, Apr 23
London LGWSan Juan SJU

$859
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1 stop
Thu, Apr 17 – Wed, Apr 23
London LGWSan Juan SJU

$800
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1 stop
Fri, Apr 18 – Wed, Apr 23
London LGWSan Juan SJU

$820
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1 stop
Fri, Apr 18 – Wed, Apr 23
London LGWSan Juan SJU

$839
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Prices updated:

How much do flights to San Juan cost?

Key info about flying to San Juan

Depart from
Heathrow
Arrive to
Luis Muñoz Marín International
Average flights per week
321
Flight distance

Check-in for a flight from London to San Juan

NameCarrier codeIATA CodePassport needed during booking
RyanairRYRFRNo
Frontier AirlinesFFTF9No
JetBlue AirwaysJBUB6No
Spirit AirlinesNKSNKNo
PlayFPYOGNo

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
March
Sunny days
252
days per year

14 day forecast

Saturday
22 Mar
74%
27°C25°C
29 Mar
84%
27°C24°C
Sunday
23 Mar
30°C24°C
30 Mar
87%
27°C23°C
Monday
24 Mar
27°C24°C
31 Mar
86%
28°C23°C
Tuesday
25 Mar
88%
29°C24°C
1 Apr
89%
28°C23°C
Wednesday
26 Mar
89%
29°C24°C
2 Apr
87%
30°C23°C
Thursday
27 Mar
89%
29°C24°C
3 Apr
89%
29°C23°C
Friday
28 Mar
88%
29°C24°C
4 Apr
87%
29°C24°C
Travelers usually depart from Heathrow, Gatwick, London Stansted, Luton, or London City when they travel from London to San Juan. Book your trip to arrive at Luis Muñoz Marín International, or Fernando Luis Ribas Dominicci. The most popular airlines for this route are Ryanair, Frontier Airlines, JetBlue Airways, Spirit Airlines, and Play. London and San Juan have 321 direct flights per week.

Frequently asked questions

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What time do flights between London and San Juan arrive?

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