Flight Routes from London Heathrow to San Juan (Puerto Rico)

Trip type

Our cheapest offers for flights from London Heathrow to San Juan (Puerto Rico)

Here you can compare cheap flights from London Heathrow (LHR) to San Juan (Puerto Rico) (SJU) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Juan (Puerto Rico). Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
London Heathrow
San Juan (Puerto Rico)
Outbound
01/12/26
1 Stopover (BOS)
B61621, B60561
18h 35min
Return
08/12/26
1 Stopover (BOS)
B60862, B61620
12h 14min
JetBlue Airways
£608
London Heathrow
San Juan (Puerto Rico)
Outbound
01/12/26
1 Stopover (BOS)
B61621, B60561
18h 35min
Return
08/12/26
1 Stopover (BOS)
B60162, B61620
19h 45min
JetBlue Airways ?
£623
London Heathrow
San Juan (Puerto Rico)
Outbound
01/12/26
1 Stopover (BOS)
B61621, B60561
18h 35min
Return
08/12/26
1 Stopover (BOS)
KL7373, KL4817
13h 20min
JetBlue Airways ?
£633
London Heathrow
San Juan (Puerto Rico)
Outbound
30/08/26
1 Stopover (BOS)
B61621, B60561
21h 57min
Return
06/09/26
1 Stopover (MIA)
IB4381, IB3583
15h 22min
JetBlue Airways
£656
London Heathrow
San Juan (Puerto Rico)
Outbound
30/08/26
1 Stopover (BOG)
AV0121, AV0258
24h 05min
Return
06/09/26
1 Stopover (EWR)
UA2036, UA0940
13h 25min
Avianca
£671
London Heathrow
San Juan (Puerto Rico)
Outbound
30/08/26
1 Stopover (BOG)
AV0121, AV0258
24h 05min
Return
06/09/26
1 Stopover (JFK)
AF2336, AF8991
14h 31min
Avianca
£675
London Heathrow
San Juan (Puerto Rico)
Outbound
30/08/26
2 Stopovers (BCN, MIA)
VY6651, BA1519, BA5024
55h 53min
Return
06/09/26
1 Stopover (JFK)
VS4926, VS0010
12h 26min
Vueling Airlines, British Airways ?
£704
London Heathrow
San Juan (Puerto Rico)
Outbound
01/12/26
1 Stopover (BOS)
TP4289, TP4451
18h 35min
Return
08/12/26
1 Stopover (BOS)
TP4396, TP4286
19h 45min
TAP Air Portugal
£705
London Heathrow
San Juan (Puerto Rico)
Outbound
01/12/26
2 Stopovers (LIS, JFK)
TP1351, TP0209, TP4405
23h 33min
Return
08/12/26
2 Stopovers (JFK, LIS)
TP4398, TP0210, TP1366
26h 00min
TAP Air Portugal
£710
London Heathrow
San Juan (Puerto Rico)
Outbound
30/08/26
1 Stopover (BOS)
B61621, B60561
21h 57min
Return
06/09/26
1 Stopover (JFK)
B61604, B60007
15h 00min
JetBlue Airways
£725
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from London Heathrow to San Juan (Puerto Rico)

Favourite airline: e.g. JetBlue Airways, Lufthansa
The favourite airline for flights from London Heathrow to San Juan (Puerto Rico) is JetBlue Airways.
JetBlue Airways
31 %
Lufthansa
31 %
Icelandair
15 %
Favourite connection: via New York
When booking flights from London Heathrow to San Juan (Puerto Rico) 80 % of travellers prefer to fly via New York.
Route
bookings
1 stopover New York John F Kennedy
18h 31min, from 914 GBP
80 %
2 stopovers Frankfurt-Main New York John F Kennedy
24h 20min, from 1 160 GBP
20 %

Important flight information

Flight information: London Heathrow - San Juan (Puerto Rico)

Outbound and return from 607,97 GBP
Distance 6737 km
Departure airport Airport London Heathrow (LHR)
Arrival airport Airport San Juan - Luis Muñoz Marín International Airport (SJU)
Destination country Flights to Puerto Rico
City-Code - Arrival airport London - San Juan - Luis Muñoz Marín International Airport
Departure airport - Destination country London Heathrow - Puerto Rico
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