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
31/03/26
1 Stopover (BOS)
B61621, B61161
18h 28min
Return
21/04/26
1 Stopover (JFK)
B61604, B61107
15h 46min
JetBlue Airways
£534
London Heathrow
San Juan (Puerto Rico)
Please note: transfer for connecting flight
Outbound
04/05/26
2 Stopovers (ARN, EWR)
SK1530, SK0903, NK2560
32h 05min
Return
22/05/26
2 Stopovers (EWR, ARN)
NK2561, SK0904, SK1527
26h 27min
SAS Scandinavian Airlines, Spirit Airlines
£667
London Heathrow
San Juan (Puerto Rico)
Outbound
17/08/26
2 Stopovers (FRA, BOS)
LH0923, DE2038, B60561
22h 58min
Return
15/09/26
2 Stopovers (JFK, FRA)
B62904, DE2017, LH0908
27h 40min
Lufthansa, Condor, JetBlue Airways
£1,010
London Heathrow
San Juan (Puerto Rico)
Outbound
31/03/26
1 Stopover (JFK)
B60020, B60403
20h 03min
Return
21/04/26
1 Stopover (JFK)
B62104, B60007
22h 05min
JetBlue Airways
£556
London Heathrow
San Juan (Puerto Rico)
Outbound
04/05/26
1 Stopover (JFK)
B62220, B61903
17h 46min
Return
22/05/26
1 Stopover (JFK)
B60504, B61107
12h 40min
JetBlue Airways
£590
London Heathrow
San Juan (Puerto Rico)
Outbound
25/05/26
1 Stopover (BOS)
B61621, B60861
32h 21min
Return
07/06/26
1 Stopover (BOS)
B60462, B61620
29h 41min
JetBlue Airways
£607
London Heathrow
San Juan (Puerto Rico)
Outbound
04/05/26
1 Stopover (JFK)
B62220, B60703
20h 52min
Return
22/05/26
1 Stopover (BOS)
B60762, B61620
12h 01min
JetBlue Airways
£609
London Heathrow
San Juan (Puerto Rico)
Outbound
31/03/26
1 Stopover (BOS)
AA0109, B60561
19h 34min
Return
21/04/26
2 Stopovers (BOS, PHL)
B60162, AA1147, AA0728
45h 49min
American Airlines, JetBlue Airways
£613
London Heathrow
San Juan (Puerto Rico)
Outbound
17/08/26
1 Stopover (BOG)
AV0121, AV0214
18h 20min
Return
15/09/26
1 Stopover (BOG)
AV0259, AV0120
16h 00min
Avianca
£698
London Heathrow
San Juan (Puerto Rico)
Outbound
31/03/26
2 Stopovers (LIS, BOS)
TP1363, TP0217, TP4451
24h 34min
Return
21/04/26
2 Stopovers (EWR, LIS)
TP4526, TP0202, TP1356
23h 50min
TAP Air Portugal
£738
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 £
80 %
2 stopovers Frankfurt-Main New York John F Kennedy
24h 20min, from 1 160 £
20 %

Important flight information

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

Outbound and return from 533,20 £
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
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