Flights from Puerto Rico to the United Kingdom from $ 573*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Best prices for United flights from Puerto Rico to United Kingdom

$
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*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, 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. Schedules are subject to change without notice.

Best business class fares from Puerto Rico to the United Kingdom

$

San Juan (SJU)to

London (LHR)
12/31/2025 - 01/04/2026

Roundtrip

Business

from
$ 4,830
Viewed: 1 day ago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, 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. Schedules are subject to change without notice.

Explore more United flights from Puerto Rico to the United Kingdom