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
Best option
London Heathrow
San Juan (Puerto Rico)
Outbound
31/01/26
1 Stopover (JFK)
B60020, B60703
15h 30min
Return
03/02/26
1 Stopover (JFK)
B62104, B60007
23h 25min
JetBlue Airways
£516
London Heathrow
San Juan (Puerto Rico)
Outbound
31/01/26
1 Stopover (JFK)
B60020, B60703
15h 30min
Return
03/02/26
1 Stopover (JFK)
B62104, B60007
23h 25min
JetBlue Airways
£539
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
London Heathrow
San Juan (Puerto Rico)
Outbound
31/01/26
2 Stopovers (DUB, EWR)
EI0151, EI0101, F93112
36h 35min
Return
03/02/26
2 Stopovers (EWR, LGA, IAD)
F93111, UA6177, UA0918
43h 30min
Aer Lingus Irish Airlines, Frontier Airlines ?
£617
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
31/01/26
2 Stopovers (LIS, BOS)
TP1363, TP0217, TP4451
20h 55min
Return
03/02/26
2 Stopovers (JFK, LIS)
TP4398, TP0210, TP1358
30h 29min
TAP Air Portugal
£652
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
31/01/26
1 Stopover (MAD)
AA8603, AA8527
12h 30min
Return
03/02/26
1 Stopover (MIA)
AA2141, AA0038
15h 11min
American Airlines ?
£898
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
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 £ 515,40
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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