Cheap flights from London to Puerto Rico Island

View AU$1,123 flight on Mon, 20 Oct. 2025Opens in a new window

Popular airlines from London to Puerto Rico Island

  • Icelandair

    Icelandair

  • American Airlines

    American Airlines

  • Avianca

    Avianca

  • British Airways

    British Airways

  • Delta

    Delta

  • Iberia

    Iberia

  • KLM

    KLM

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Cheap Flights from London (LON) to Puerto Rico Island (SJU)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

avianca
Mon, 18 May - Thu, 28 May
LHR
London
SJU
San Juan
AU$1,201 Return, found 6 days ago
AU$1,201
Return
found 6 days ago
Select avianca flight, departing Mon, 18 May from London to San Juan, returning Thu, 28 May, priced at AU$1,201 found 6 days ago
Icelandair
Wed, 7 Jan. - Wed, 14 Jan.
LGW
London
SJU
San Juan
AU$1,460 Return, found 6 hours ago
AU$1,460
Return
found 6 hours ago
Select Icelandair flight, departing Wed, 7 Jan. from London to San Juan, returning Wed, 14 Jan., priced at AU$1,460 found 6 hours ago
Virgin Atlantic
Wed, 7 Jan. - Wed, 14 Jan.
LHR
London
SJU
San Juan
AU$1,706 Return, found 6 hours ago
AU$1,706
Return
found 6 hours ago
Select Virgin Atlantic flight, departing Wed, 7 Jan. from London to San Juan, returning Wed, 14 Jan., priced at AU$1,706 found 6 hours ago
United
Wed, 7 Jan. - Wed, 14 Jan.
LHR
London
SJU
San Juan
AU$1,706 Return, found 6 hours ago
AU$1,706
Return
found 6 hours ago
Select United flight, departing Wed, 7 Jan. from London to San Juan, returning Wed, 14 Jan., priced at AU$1,706 found 6 hours ago
American Airlines
Wed, 7 Jan. - Wed, 14 Jan.
LHR
London
SJU
San Juan
AU$1,706 Return, found 6 hours ago
AU$1,706
Return
found 6 hours ago
Select American Airlines flight, departing Wed, 7 Jan. from London to San Juan, returning Wed, 14 Jan., priced at AU$1,706 found 6 hours ago
Delta
Wed, 7 Jan. - Wed, 14 Jan.
LHR
London
SJU
San Juan
AU$1,714 Return, found 6 hours ago
AU$1,714
Return
found 6 hours ago
Select Delta flight, departing Wed, 7 Jan. from London to San Juan, returning Wed, 14 Jan., priced at AU$1,714 found 6 hours ago

Find the cheapest month to fly from London (LON) to San Juan (SJU)

September is typically the cheapest month to fly

From AU$849 - AU$1,678 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.