$271+ Cheap flights from Puerto Rico to London (LON)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LON
May 17 — May 241
Round-trip
1 adult, Economy
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Find cheap flights from Puerto Rico to London with Cheapflights
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Cheapest flights from Puerto Rico to LondonExplore the most affordable flight options available from Puerto Rico to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
Explore the most affordable flight options available from Puerto Rico to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
This KLM deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:45 pm
SJU
- LHR
1 stop17h 30m
KLM
Sat 5/96:35 pm
LHR
- SJU
1 stop34h 00m
KLM
Deal found 4/13![KLM logo]()
$711
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:46 pm
SJU
- LHR
1 stop17h 34m
KLM
Sat 10/3110:45 am
LHR
- SJU
1 stop29h 51m
KLM
Deal found 4/14![KLM logo]()
$712
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:25 pm
SJU
- LHR
1 stop15h 55m
Delta
Tue 5/129:55 am
LHR
- SJU
2 stops18h 40m
Delta
Deal found 4/14![Delta logo]()
$713
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:25 pm
SJU
- LHR
1 stop12h 20m
Delta
Mon 5/116:15 am
LHR
- SJU
2 stops22h 20m
Delta
Deal found 4/13![Delta logo]()
$714
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:15 am
SJU
- LHR
1 stop19h 10m
Delta
Sat 5/96:30 am
LHR
- SJU
2 stops22h 05m
Delta
Deal found 4/16![Delta logo]()
$715
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:15 am
SJU
- LHR
1 stop18h 05m
Delta
Wed 4/2911:15 am
LHR
- SJU
1 stop34h 08m
Delta
Deal found 4/15![Delta logo]()
$717
This KLM deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:06 pm
SJU
- LHR
1 stop14h 44m
KLM
Tue 10/209:20 am
LHR
- SJU
1 stop17h 39m
KLM
Deal found 4/13![KLM logo]()
$720
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:31 pm
SJU
- LHR
1 stop16h 09m
KLM
Mon 11/912:30 pm
LHR
- SJU
1 stop14h 43m
KLM
Deal found 4/14![KLM logo]()
$721
This KLM deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:06 pm
SJU
- LHR
1 stop16h 09m
KLM
Tue 11/1010:10 am
LHR
- SJU
1 stop17h 45m
KLM
Deal found 4/17![KLM logo]()
$722
This KLM deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:00 am
SJU
- LGW
2 stops21h 25m
Multiple Airlines
Tue 10/135:00 pm
LGW
- SJU
2 stops35h 56m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$746
This FlightHub deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:30 am
SJU
- LGW
1 stop20h 05m
JetBlue
Fri 8/2812:20 pm
LGW
- SJU
1 stop18h 35m
JetBlue
Deal found 4/14![JetBlue logo]()
$917
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:27 pm
SJU
- LGW
1 stop15h 08m
Multiple Airlines
Tue 6/92:00 pm
LGW
- SJU
1 stop17h 09m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$927
Best flights from Puerto Rico to LondonDiscover carefully curated flight deals from Puerto Rico to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from Puerto Rico to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:25 pm
SJU
- LHR
1 stop17h 45m
Delta
Mon 5/116:30 am
LHR
- SJU
2 stops22h 05m
Delta
Deal found 4/15![Delta logo]()
$714
This Virgin Atlantic deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:32 pm
SJU
- LHR
1 stop12h 43m
Virgin Atlantic
Tue 10/1311:20 am
LHR
- SJU
1 stop17h 36m
Virgin Atlantic
Deal found 4/12![Virgin Atlantic logo]()
$720
This KLM deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:30 pm
SJU
- LHR
1 stop12h 15m
KLM
Tue 10/1311:45 am
LHR
- SJU
1 stop17h 11m
KLM
Deal found 4/12![KLM logo]()
$720
This KLM deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:00 am
SJU
- LGW
2 stops21h 25m
Multiple Airlines
Tue 10/135:00 pm
LGW
- SJU
2 stops35h 56m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$746
This JetBlue deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/231:27 pm
SJU
- LGW
1 stop15h 08m
JetBlue
Tue 5/2612:20 pm
LGW
- SJU
1 stop14h 22m
JetBlue
Deal found 4/16![JetBlue logo]()
$1,117
This TAP AIR PORTUGAL deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am
SJU
- LGW
2 stops22h 45m
TAP AIR PORTUGAL
Sun 9/2012:05 pm
LGW
- SJU
2 stops30h 03m
TAP AIR PORTUGAL
Deal found 4/14![TAP AIR PORTUGAL logo]()
$1,306
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:06 pm
SJU
- LHR
1 stop16h 14m
Delta
Tue 10/2011:45 am
LHR
- SJU
1 stop17h 11m
Delta
Deal found 4/13![Delta logo]()
$720
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:30 am
SJU
- LHR
2 stops20h 20m
Delta
Wed 8/2611:15 am
LHR
- SJU
1 stop16h 08m
Delta
Deal found 4/12![Delta logo]()
$724
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am
SJU
- LHR
1 stop22h 20m
Delta
Sun 9/208:05 pm
LHR
- SJU
2 stops22h 11m
Delta
Deal found 4/14![Delta logo]()
$725
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:30 am
SJU
- LHR
2 stops20h 20m
Delta
Sun 8/168:05 pm
LHR
- SJU
2 stops25h 30m
Delta
Deal found 4/13![Delta logo]()
$754
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:06 pm
SJU
- LHR
2 stops17h 59m
Delta
Mon 8/178:05 pm
LHR
- SJU
2 stops22h 25m
Delta
Deal found 4/13![Delta logo]()
$754
This Norse deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/242:59 am
SJU
- LGW
1 stop26h 01m
Multiple Airlines
Tue 5/262:00 pm
LGW
- SJU
1 stop14h 22m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,124
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:44 am
VQS
- LHR
2 stops17h 56m
United Airlines
Mon 5/188:00 am
LHR
- VQS
2 stops36h 53m
United Airlines
Deal found 4/15![United Airlines logo]()
$2,589
This Turkish Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:00 pm
SJU
- LGW
2 stops23h 35m
Multiple Airlines
Tue 5/125:35 pm
LGW
- SJU
2 stops30h 01m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,189
This JetBlue deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:25 pm
SJU
- LGW
1 stop13h 10m
JetBlue
Wed 6/1712:20 pm
LGW
- SJU
1 stop14h 11m
JetBlue
Deal found 4/17![JetBlue logo]()
$1,321
This Turkish Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:30 am
SJU
- LGW
2 stops25h 15m
Multiple Airlines
Sun 9/2010:50 am
LGW
- SJU
2 stops31h 44m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,295
This Turkish Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:30 am
SJU
- LGW
2 stops25h 05m
Multiple Airlines
Fri 9/182:05 pm
LGW
- SJU
2 stops28h 29m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,348
This Icelandair deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:30 am
SJU
- LGW
2 stops25h 10m
Multiple Airlines
Wed 8/53:40 pm
LGW
- SJU
2 stops39h 40m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,386
This Turkish Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:01 am
SJU
- LGW
2 stops23h 54m
Multiple Airlines
Mon 8/177:05 am
LGW
- SJU
2 stops22h 05m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,420
Last-minute flights from Puerto Rico to LondonDiscover last-minute flight deals from Puerto Rico to London. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to London. Data last updated April 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:15 am
SJU
- LHR
1 stop18h 05m
Delta
Wed 4/2911:15 am
LHR
- SJU
1 stop34h 08m
Delta
Deal found 4/15![Delta logo]()
$717
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:25 pm
SJU
- LHR
1 stop15h 55m
KLM
Wed 4/298:20 am
LHR
- SJU
1 stop20h 39m
KLM
Deal found 4/14![KLM logo]()
$712
This KLM deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/232:45 pm
SJU
- LHR
1 stop17h 30m
KLM
Sat 5/96:35 pm
LHR
- SJU
1 stop34h 00m
KLM
Deal found 4/13![KLM logo]()
$711
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:15 am
SJU
- LHR
1 stop19h 10m
Delta
Sat 5/96:30 am
LHR
- SJU
2 stops22h 05m
Delta
Deal found 4/16![Delta logo]()
$715
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:25 pm
SJU
- LHR
1 stop12h 20m
Delta
Mon 5/116:15 am
LHR
- SJU
2 stops22h 20m
Delta
Deal found 4/13![Delta logo]()
$714
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:25 pm
SJU
- LHR
1 stop15h 55m
Delta
Tue 5/129:55 am
LHR
- SJU
2 stops18h 40m
Delta
Deal found 4/14![Delta logo]()
$713
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:59 am
SJU
- LGW
1 stop24h 21m
Multiple Airlines
Thu 5/217:00 pm
LGW
- SJU
2 stops56h 42m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$969
This Norse deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/143:03 am
SJU
- LGW
1 stop25h 57m
Multiple Airlines
Sun 5/312:00 pm
LGW
- SJU
1 stop25h 18m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,045
This Expedia deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:40 pm
SJU
- LGW
1 stop18h 20m
Iberia
Mon 5/1811:30 am
LGW
- SJU
1 stop12h 35m
Iberia
Deal found 4/16![Iberia logo]()
$931
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:35 pm
SJU
- LGW
2 stops24h 20m
Multiple Airlines
Wed 6/32:00 pm
LGW
- SJU
2 stops33h 59m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,056
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:27 pm
SJU
- LGW
1 stop15h 08m
Multiple Airlines
Tue 6/92:00 pm
LGW
- SJU
1 stop17h 09m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$927
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/315:01 am
SJU
- LGW
1 stop23h 34m
Multiple Airlines
Sun 6/72:00 pm
LGW
- SJU
1 stop17h 08m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,046
One-way flights from Puerto Rico to LondonSearch for one-way flight options from Puerto Rico to London. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Puerto Rico to London. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:30 am
SJU
- LHR
2 stops17h 50m
Delta
Deal found 4/13![Delta logo]()
$271
This KLM deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/171:16 pm
SJU
- LHR
1 stop16h 04m
KLM
Deal found 4/13![KLM logo]()
$301
This KLM deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:30 pm
SJU
- LHR
1 stop12h 15m
KLM
Deal found 4/13![KLM logo]()
$307
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:05 pm
SJU
- LHR
2 stops18h 10m
Delta
Deal found 4/15![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/184:55 pm
SJU
- LHR
2 stops32h 35m
United Airlines
Deal found 4/12![United Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/181:00 am
SJU
- LHR
2 stops27h 35m
United Airlines
Deal found 4/16![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/284:55 pm
SJU
- LHR
2 stops17h 45m
United Airlines
Deal found 4/14![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:26 pm
SJU
- LHR
1 stop12h 19m
Delta
Deal found 4/15![Delta logo]()
$326
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:55 pm
SJU
- LHR
1 stop12h 45m
United Airlines
Deal found 4/13![United Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:55 pm
SJU
- LHR
2 stops32h 50m
United Airlines
Deal found 4/12![United Airlines logo]()
$367
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:55 pm
SJU
- LHR
2 stops19h 10m
United Airlines
Deal found 4/15![United Airlines logo]()
$370
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:34 pm
SJU
- LHR
1 stop14h 41m
KLM
Deal found 4/14![KLM logo]()
$372
Find flight deals from Puerto Rico to London
Keep the following information in mind while searching for Puerto Rico to London flight deals. Data was last updated April 17, 2026.
Round-trip from | $712 (KLM) |
|---|---|
One-way from | $271 (Delta) |
Popular in | June |
Cheapest in | February |
Average price | $801 |
Cheapflights Fare Finder
Customize your flight search to find flights from Puerto Rico to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
Use the filters below to find and compare flights from Puerto Rico to London that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Thu 4/30
1:25 pm-12:10 pm
1 stop17h 45m
London Heathrow
Mon 5/11
6:30 am-11:35 pm
2 stops22h 05m
$714
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Thu 10/1
1:32 pm-7:15 am
1 stop12h 43m
London Heathrow
Tue 10/13
11:20 am-11:56 pm
1 stop17h 36m
$720
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Fri 10/2
1:30 pm-6:45 am
1 stop12h 15m
London Heathrow
Tue 10/13
11:45 am-11:56 pm
1 stop17h 11m
$720
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Fri 10/9
1:06 pm-10:20 am
1 stop16h 14m
London Heathrow
Tue 10/20
11:45 am-11:56 pm
1 stop17h 11m
$720
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Wed 8/12
7:30 am-8:50 am
2 stops20h 20m
London Heathrow
Wed 8/26
11:15 am-10:23 pm
1 stop16h 08m
$724
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Fri 9/11
7:00 am-10:20 am
1 stop22h 20m
London Heathrow
Sun 9/20
8:05 pm-1:16 pm
2 stops22h 11m
$725
San JuanLondon
SJU - LGW
SJULGW
San Juan Luis Munoz Marin Intl
Fri 10/2
7:00 am-9:25 am
2 stops21h 25m
London Gatwick
Tue 10/13
5:00 pm-11:56 pm
2 stops35h 56m
$746
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Wed 8/12
7:30 am-8:50 am
2 stops20h 20m
London Heathrow
Sun 8/16
8:05 pm-4:35 pm
2 stops25h 30m
$754
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Wed 8/12
1:06 pm-12:05 pm
2 stops17h 59m
London Heathrow
Mon 8/17
8:05 pm-1:30 pm
2 stops22h 25m
$754
San JuanLondon
SJU - LGW
SJULGW
San Juan Luis Munoz Marin Intl
Sat 5/23
1:27 pm-9:35 am
1 stop15h 08m
London Gatwick
Tue 5/26
12:20 pm-9:42 pm
1 stop14h 22m
$1,117
Showing 1-10 of 39 resultsSorted by cheapest first
Best time to book a flight from Puerto Rico to London
Have a flexible travel schedule? Discover the best time to fly to London from Puerto Rico with our price prediction graph.
SJU-LHR
SJU-LGW
VQS-LHR
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Puerto Rico to London
PR0-LON
SJU-LHR
SJU-LGW
VQS-LHR
What is the cheapest month to book a flight from Puerto Rico to London?
Currently, February is the cheapest month in which you can book a flight from Puerto Rico to London (average of $101). Flying from Puerto Rico to London in June is currently the most expensive (average of $817). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing London
Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated April 17, 2026.
See what other customers who have flown with Delta,United Airlines, andJetBlue from Puerto Rico to London have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.9
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentLane,Nov 2025
MEM - ATL
Boarding
8.1
Comfort
7.9
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentLane,Nov 2025
MEM - ATL
Boarding
8.1
Comfort
7.9
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentLane,Nov 2025
MEM - ATL
Boarding
8.1
Comfort
7.9
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentLane,Nov 2025
MEM - ATL
Boarding
8.1
Comfort
7.9
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentLane,Nov 2025
MEM - ATL
Boarding
8.1
Comfort
7.9
Crew
8.5
Food
7.2
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
8.0
ExcellentLane,Nov 2025
MEM - ATL
Related info for your journey
Find useful and relevant information for your journey from Puerto Rico to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsIlford
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Borehamwood
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
Sutton
Stansted
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Puerto Rico to London
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to London by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Puerto Rico to London by cabin class
Find flights from Puerto Rico to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to London
Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Puerto Rico and London flights
Browse other Puerto Rico and London flight options. Last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Puerto Rico to London
Discover the top 4 airlines that operate flights from Puerto Rico to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$101 | Average$846 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$584 | Average$883 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$600 | Average$817 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$605 | Average$777 | FlexibilityNo cancel fee | On-time71% |