Flights from London Heathrow to San Juan (Puerto Rico)

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
London Heathrow
San Juan (Puerto Rico)
Outbound
20/03/26
2 Stopovers (CPH, JFK)
SK0500, SK0915, B60403
24h 15min
Return
17/04/26
2 Stopovers (JFK, CPH)
B61104, SK0916, SK0501
40h 05min
SAS Scandinavian Airlines, JetBlue Airways
£528
Best option
London Heathrow
San Juan (Puerto Rico)
Outbound
20/03/26
1 Stopover (JFK)
B62220, B60403
23h 30min
Return
17/04/26
1 Stopover (JFK)
B62004, B61107
20h 05min
JetBlue Airways
£604
London Heathrow
San Juan (Puerto Rico)
Outbound
20/03/26
2 Stopovers (FRA, JFK)
LH0921, DE2016, B60803
23h 17min
Return
17/04/26
2 Stopovers (JFK, FRA)
B61604, DE2017, LH0924
19h 20min
Lufthansa, Condor, JetBlue Airways
£940
London Heathrow
San Juan (Puerto Rico)
Outbound
20/03/26
1 Stopover (BOG)
AV0121, AV0258
23h 25min
Return
17/04/26
1 Stopover (BOG)
AV0259, AV0120
16h 20min
Avianca
£644
London Heathrow
San Juan (Puerto Rico)
Outbound
20/03/26
2 Stopovers (LIS, EWR)
TP1363, TP0201, TP4533
22h 51min
Return
17/04/26
2 Stopovers (EWR, LIS)
TP4526, TP0202, TP1352
25h 45min
TAP Air Portugal
£674
London Heathrow
San Juan (Puerto Rico)
Outbound
20/03/26
1 Stopover (BOG)
AV0121, AV0214
17h 55min
Return
17/04/26
1 Stopover (BOG)
AV0259, AV0120
16h 20min
Avianca ?
£736
London Heathrow
San Juan (Puerto Rico)
Outbound
20/03/26
2 Stopovers (GVA, MAD)
LX0359, IB0622, IB0381
37h 40min
Return
17/04/26
2 Stopovers (ATL, CDG)
VS1887, VS6793, BA0309
24h 05min
Swiss International Air Lines, Iberia ?
£892
London Heathrow
San Juan (Puerto Rico)
Outbound
22/12/25
1 Stopover (JFK)
B60020, B60803
17h 43min
Return
10/01/26
1 Stopover (JFK)
B61604, B60007
21h 15min
JetBlue Airways
£939
London Heathrow
San Juan (Puerto Rico)
Outbound
22/12/25
1 Stopover (JFK)
B60020, B60703
15h 19min
Return
10/01/26
1 Stopover (BOS)
B61462, B61620
31h 40min
JetBlue Airways
£963
London Heathrow
San Juan (Puerto Rico)
Outbound
22/12/25
3 Stopovers (MUC, LHR, MIA)
BA0944, BA0955, BA1525, BA5027
44h 29min
Return
10/01/26
1 Stopover (JFK, EWR)
F93546, UA0122
34h 10min
British Airways ?
£966
Prices based on recent searches, subject to last-minute changes
Page 1 / 2

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 527,70 £
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
Flight destinations with a similar price