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Get United's best fares today on flights from London to San Juan

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Low fare calendar for flights from London (LHR) to San Juan (SJU)

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Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

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Weather in San Juan

Wednesday light rain
79°F 01/22/20
Thursday moderate rain
80°F 01/23/20
Friday moderate rain
77°F 01/24/20
Saturday moderate rain
76°F 01/25/20
Sunday moderate rain
77°F 01/26/20
Monday sky is clear
78°F 01/27/20
Tuesday light rain
79°F 01/28/20
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