When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 34 days in advance, which can save you up to 28% on flights from London to Puerto Rico compared to booking the week you need them. Waiting 34 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £595. For sooner than that we have options available in the next 3 days from £668.
Our data shows that February tends to be the cheapest month to fly to Puerto Rico from London. Users have commonly found prices around £657 for the month, but tickets can be as low as £417. Due to multiple factors, prepare for potentially higher prices in August.
When flying from London to Puerto Rico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
£513 - £955
Route
Depart
Return
Price
London GatwickSan Juan Luis Munoz Marin Intl
LGW - SJU
LGWSJU
London Gatwick
Sun 19/5
2 stops29h 58m
San Juan Luis Munoz Marin Intl
Fri 24/5
1 stop30h 41m
London HeathrowSan Juan Luis Munoz Marin Intl
LHR - SJU
LHRSJU
London Heathrow
Tue 14/5
1 stop18h 45m
San Juan Luis Munoz Marin Intl
Thu 23/5
1 stop19h 28m
London HeathrowSan Juan Luis Munoz Marin Intl
LHR - SJU
LHRSJU
London Heathrow
Fri 20/9
2 stops16h 51m
San Juan Luis Munoz Marin Intl
Mon 30/9
1 stop12h 11m
London HeathrowSan Juan Luis Munoz Marin Intl
LHR - SJU
LHRSJU
London Heathrow
Tue 14/5
1 stop18h 45m
San Juan Luis Munoz Marin Intl
Wed 22/5
1 stop24h 56m
London HeathrowSan Juan Luis Munoz Marin Intl
LHR - SJU
LHRSJU
London Heathrow
Fri 20/9
2 stops26h 54m
San Juan Luis Munoz Marin Intl
Mon 30/9
2 stops18h 40m
London GatwickSan Juan Luis Munoz Marin Intl
LGW - SJU
LGWSJU
London Gatwick
Mon 6/5
1 stop16h 03m
San Juan Luis Munoz Marin Intl
Mon 20/5
1 stop21h 00m
London HeathrowSan Juan Luis Munoz Marin Intl
LHR - SJU
LHRSJU
London Heathrow
Mon 16/9
1 stop15h 57m
San Juan Luis Munoz Marin Intl
Sat 28/9
1 stop14h 35m
London CitySan Juan Luis Munoz Marin Intl
LCY - SJU
LCYSJU
London City
Fri 20/9
2 stops35h 09m
San Juan Luis Munoz Marin Intl
Mon 30/9
2 stops40h 40m
London HeathrowSan Juan Luis Munoz Marin Intl
LHR - SJU
LHRSJU
London Heathrow
Mon 13/5
1 stop12h 15m
San Juan Luis Munoz Marin Intl
Sun 19/5
2 stops14h 35m
No data available for this route at this time. Please check back soon.
Food
Overall
Entertainment
Comfort
Boarding
Crew
Reviews
The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.
Food
Overall
Entertainment
Comfort
Boarding
Crew
Reviews
The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.
Food
Overall
Entertainment
Comfort
Boarding
Crew
Reviews
The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.
Food
Overall
Entertainment
Comfort
Boarding
Crew
Reviews
The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.
Food
Overall
Entertainment
Comfort
Boarding
Crew
Reviews
The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.
Food
Overall
Entertainment
Comfort
Boarding
Crew
Reviews
The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Puerto Rico from London today with Cheapflights!
Millions of users choose and trust Cheapflights to book the best flight deals from London to Puerto Rico for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Cheapflights does show flights with no change fees to all users. To see these options for flights from London to Puerto Rico, users can toggle the no change fees filter when performing a flight search.
Yes, Cheapflights offers price alerts on London to Puerto Rico flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.