$302+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LON
Aug 23 — Aug 301
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Puerto Rico to London with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Puerto Rico to London
Cheapest
Best
Last-minute
One-way
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 July 24, 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 July 24, 2026.
This Norse deal was found by Cheapflights users on 7/21. 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.
Fri 8/218:57 pm
SJU
- LGW
1 stop32h 03m
Multiple Airlines
Fri 8/282:00 pm
LGW
- SJU
1 stop34h 52m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$706
This Kiwi.com deal was found by Cheapflights users on 7/18. 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.
Tue 10/209:49 pm
SJU
- LGW
1 stop31h 11m
Multiple Airlines
Tue 10/2710:10 am
LGW
- SJU
1 stop19h 40m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$708
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 10/59:03 am
SJU
- LGW
1 stop19h 57m
Multiple Airlines
Fri 10/92:00 pm
LGW
- SJU
1 stop32h 36m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$732
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sun 11/154:55 pm
SJU
- LHR
1 stop35h 00m
United Airlines
Wed 11/186:50 am
LHR
- SJU
2 stops21h 46m
United Airlines
Deal found 7/21![United Airlines logo]()
$739
This Norse deal was found by Cheapflights users on 7/20. 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.
Tue 8/183:10 am
SJU
- LGW
1 stop25h 50m
Multiple Airlines
Wed 8/262:00 pm
LGW
- SJU
1 stop34h 52m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$741
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 9/149:03 am
SJU
- LGW
1 stop19h 57m
Multiple Airlines
Fri 9/182:00 pm
LGW
- SJU
1 stop28h 16m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$751
This Norse deal was found by Cheapflights users on 7/22. 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 8/2012:11 pm
SJU
- LGW
1 stop16h 49m
Multiple Airlines
Thu 8/272:00 pm
LGW
- SJU
1 stop23h 11m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$773
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Fri 8/1412:49 pm
SJU
- LGW
1 stop16h 11m
Multiple Airlines
Mon 8/242:00 pm
LGW
- SJU
1 stop17h 15m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$780
This Iberia deal was found by Cheapflights users on 7/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:35 pm
SJU
- LGW
1 stop17h 25m
Iberia
Tue 11/2411:45 am
LGW
- SJU
1 stop12h 15m
Iberia
Deal found 7/21![Iberia logo]()
$810
This Iberia deal was found by Cheapflights users on 7/21. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:35 pm
SJU
- LHR
1 stop13h 20m
Iberia
Tue 11/2410:45 am
LHR
- SJU
1 stop13h 15m
Iberia
Deal found 7/21![Iberia logo]()
$811
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:53 pm
SJU
- LHR
1 stop13h 27m
American Airlines
Tue 11/246:05 am
LHR
- SJU
1 stop17h 55m
American Airlines
Deal found 7/23![American Airlines logo]()
$815
This Expedia deal was found by Cheapflights users on 7/18. 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.
Tue 10/202:18 pm
SJU
- LHR
1 stop13h 42m
Iberia
Tue 10/277:40 pm
LHR
- SJU
1 stop25h 00m
Iberia
Deal found 7/18![Iberia logo]()
$819
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 July 24, 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 July 24, 2026.
This United Airlines deal was found by Cheapflights users on 7/21. 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 10/201:25 pm
SJU
- LHR
2 stops16h 15m
United Airlines
Tue 10/276:50 am
LHR
- SJU
2 stops20h 46m
United Airlines
Deal found 7/21![United Airlines logo]()
$826
This KLM deal was found by Cheapflights users on 7/23. 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 10/111:06 pm
SJU
- LHR
1 stop14h 44m
KLM
Sun 10/1811:45 am
LHR
- SJU
2 stops17h 11m
KLM
Deal found 7/23![KLM logo]()
$881
This Delta deal was found by Cheapflights users on 7/21. 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.
Sun 10/117:00 am
SJU
- LHR
1 stop18h 20m
Delta
Sun 10/185:45 pm
LHR
- SJU
1 stop23h 11m
Delta
Deal found 7/21![Delta logo]()
$911
This JetBlue deal was found by Cheapflights users on 7/23. 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.
Fri 8/74:52 pm
SJU
- LGW
1 stop11h 43m
JetBlue
Mon 8/2412:20 pm
LGW
- SJU
1 stop16h 34m
JetBlue
Deal found 7/23![JetBlue logo]()
$953
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/19. 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.
Tue 9/293:00 pm
SJU
- LGW
2 stops24h 25m
TAP AIR PORTUGAL
Mon 10/129:15 pm
LGW
- SJU
2 stops44h 53m
TAP AIR PORTUGAL
Deal found 7/19![TAP AIR PORTUGAL logo]()
$1,048
This Air Europa deal was found by Cheapflights users on 7/22. 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 Air Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:16 pm
SJU
- LGW
2 stops22h 09m
Multiple Airlines
Sun 10/1810:00 am
LGW
- SJU
2 stops18h 56m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$1,060
This United Airlines deal was found by Cheapflights users on 7/19. 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 9/81:00 am
SJU
- LHR
2 stops24h 30m
United Airlines
Sun 9/136:50 am
LHR
- SJU
2 stops22h 00m
United Airlines
Deal found 7/19![United Airlines logo]()
$901
This KLM deal was found by Cheapflights users on 7/20. 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 8/145:49 pm
SJU
- LHR
1 stop14h 26m
KLM
Fri 8/2811:45 am
LHR
- SJU
2 stops17h 07m
KLM
Deal found 7/20![KLM logo]()
$912
This Delta deal was found by Cheapflights users on 7/20. 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.
Sat 10/1012:46 pm
SJU
- LHR
2 stops16h 34m
Delta
Thu 10/226:35 pm
LHR
- SJU
2 stops26h 58m
Delta
Deal found 7/20![Delta logo]()
$916
This JetBlue deal was found by Cheapflights users on 7/22. 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 8/122:30 pm
SJU
- LGW
1 stop14h 05m
JetBlue
Sun 8/1612:20 pm
LGW
- SJU
1 stop16h 34m
JetBlue
Deal found 7/22![JetBlue logo]()
$1,030
This United Airlines deal was found by Cheapflights users on 7/19. 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 8/294:55 pm
SJU
- LHR
1 stop12h 45m
United Airlines
Tue 9/87:30 am
LHR
- SJU
2 stops21h 20m
United Airlines
Deal found 7/19![United Airlines logo]()
$939
This KLM deal was found by Cheapflights users on 7/19. 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.
Sat 8/15:50 pm
SJU
- LHR
1 stop14h 25m
KLM
Wed 8/128:40 am
LHR
- SJU
2 stops18h 49m
KLM
Deal found 7/19![KLM logo]()
$960
This Air Europa deal was found by Cheapflights users on 7/19. 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 Air Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:06 pm
SJU
- LGW
2 stops22h 19m
Multiple Airlines
Sun 10/1810:00 am
LGW
- SJU
2 stops30h 56m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$1,084
This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/21. 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.
Tue 10/204:45 pm
SJU
- LGW
2 stops22h 40m
TAP AIR PORTUGAL
Tue 10/279:20 pm
LGW
- SJU
3 stops30h 05m
TAP AIR PORTUGAL
Deal found 7/21![TAP AIR PORTUGAL logo]()
$1,097
This JetBlue deal was found by Cheapflights users on 7/21. 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 8/122:30 pm
SJU
- LGW
1 stop14h 05m
JetBlue
Mon 8/1712:20 pm
LGW
- SJU
1 stop16h 34m
JetBlue
Deal found 7/21![JetBlue logo]()
$1,075
This Air Europa deal was found by Cheapflights users on 7/20. 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 Air Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/91:06 pm
SJU
- LGW
2 stops22h 19m
Multiple Airlines
Sat 10/1710:00 am
LGW
- SJU
2 stops30h 56m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$1,084
This Turkish Airlines deal was found by Cheapflights users on 7/23. 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 9/2410:30 am
SJU
- LGW
2 stops25h 05m
Multiple Airlines
Mon 9/2810:50 am
LGW
- SJU
2 stops31h 50m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$1,100
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Mon 11/1611:40 am
VQS
- LHR
2 stops16h 45m
United Airlines
Wed 11/184:20 pm
LHR
- VQS
2 stops29h 19m
United Airlines
Deal found 7/22![United Airlines logo]()
$2,420
Last-minute flights from Puerto Rico to LondonDiscover last-minute flight deals from Puerto Rico to London. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to London. Data last updated July 24, 2026 and is based on user searches.
This Norse deal was found by Cheapflights users on 7/19. 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 8/136:09 pm
SJU
- LGW
1 stop34h 51m
Multiple Airlines
Mon 8/172:00 pm
LGW
- SJU
1 stop17h 15m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$894
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Fri 8/1412:49 pm
SJU
- LGW
1 stop16h 11m
Multiple Airlines
Mon 8/242:00 pm
LGW
- SJU
1 stop17h 15m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$780
This Expedia deal was found by Cheapflights users on 7/19. 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.
Sun 8/161:38 pm
SJU
- LHR
1 stop14h 47m
Iberia
Fri 8/2811:30 am
LHR
- SJU
1 stop12h 20m
Iberia
Deal found 7/19![Iberia logo]()
$868
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/161:38 pm
SJU
- LHR
1 stop14h 47m
American Airlines
Fri 8/2811:30 am
LHR
- SJU
1 stop12h 20m
American Airlines
Deal found 7/19![American Airlines logo]()
$876
This Air France deal was found by Cheapflights users on 7/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/162:59 pm
SJU
- LHR
1 stop17h 16m
Multiple Airlines
Fri 8/289:55 am
LHR
- SJU
2 stops17h 34m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$883
This Norse deal was found by Cheapflights users on 7/20. 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.
Tue 8/183:10 am
SJU
- LGW
1 stop25h 50m
Multiple Airlines
Wed 8/262:00 pm
LGW
- SJU
1 stop34h 52m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 7/19. 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 8/182:55 pm
SJU
- LHR
2 stops14h 45m
United Airlines
Tue 9/16:50 am
LHR
- SJU
2 stops22h 00m
United Airlines
Deal found 7/19![United Airlines logo]()
$887
This Norse deal was found by Cheapflights users on 7/22. 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 8/2012:11 pm
SJU
- LGW
1 stop16h 49m
Multiple Airlines
Thu 8/272:00 pm
LGW
- SJU
1 stop23h 11m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$773
This Expedia deal was found by Cheapflights users on 7/22. 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.
Thu 8/203:28 pm
SJU
- LHR
1 stop12h 57m
Iberia
Thu 8/277:50 am
LHR
- SJU
1 stop12h 35m
Iberia
Deal found 7/22![Iberia logo]()
$888
This Expedia deal was found by Cheapflights users on 7/22. 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.
Thu 8/205:15 pm
SJU
- LGW
1 stop12h 35m
Iberia
Thu 8/2711:30 am
LGW
- SJU
1 stop12h 20m
Iberia
Deal found 7/22![Iberia logo]()
$890
This Norse deal was found by Cheapflights users on 7/21. 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.
Fri 8/218:57 pm
SJU
- LGW
1 stop32h 03m
Multiple Airlines
Fri 8/282:00 pm
LGW
- SJU
1 stop34h 52m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$706
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:28 pm
SJU
- LHR
1 stop12h 57m
American Airlines
Fri 8/286:15 am
LHR
- SJU
1 stop17h 35m
American Airlines
Deal found 7/22![American Airlines logo]()
$891
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 July 24, 2026.
Search for one-way flight options from Puerto Rico to London. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/124:08 pm
SJU
- LGW
1 stop36h 52m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 8/48:37 pm
SJU
- LGW
1 stop32h 23m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 8/1812:11 pm
SJU
- LGW
1 stop16h 49m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$343
This KLM deal was found by Cheapflights users on 7/20. 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.
Tue 8/181:19 pm
SJU
- LHR
1 stop16h 01m
KLM
Deal found 7/20![KLM logo]()
$351
This United Airlines deal was found by Cheapflights users on 7/22. 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 9/251:00 am
SJU
- LHR
2 stops24h 55m
United Airlines
Deal found 7/22![United Airlines logo]()
$352
This Virgin Atlantic deal was found by Cheapflights users on 7/22. 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.
Sun 8/165:49 pm
SJU
- LHR
1 stop14h 26m
Virgin Atlantic
Deal found 7/22![Virgin Atlantic logo]()
$354
This Virgin Atlantic deal was found by Cheapflights users on 7/23. 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.
Tue 8/47:30 am
SJU
- LHR
1 stop17h 50m
Virgin Atlantic
Deal found 7/23![Virgin Atlantic logo]()
$355
This Delta deal was found by Cheapflights users on 7/22. 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 8/47:30 am
SJU
- LHR
1 stop20h 20m
Delta
Deal found 7/22![Delta logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 9/306:42 pm
SJU
- LGW
1 stop34h 18m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$360
This FlightHub deal was found by Cheapflights users on 7/22. 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.
Sun 8/166:00 am
SJU
- LGW
1 stop22h 35m
JetBlue
Deal found 7/22![JetBlue logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/198:57 pm
SJU
- LGW
1 stop32h 03m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Sun 8/163:10 am
SJU
- LGW
1 stop25h 50m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$376
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 July 24, 2026.
Round-trip from | $706 (Norse) |
|---|---|
One-way from | $302 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $951 |
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 July 24, 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
Tue 10/20
1:25 pm-10:40 am
2 stops16h 15m
London Heathrow
Tue 10/27
6:50 am-11:36 pm
2 stops20h 46m
$826
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Sun 10/11
1:06 pm-8:50 am
1 stop14h 44m
London Heathrow
Sun 10/18
11:45 am-11:56 pm
2 stops17h 11m
$881
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Tue 9/8
1:00 am-6:30 am
2 stops24h 30m
London Heathrow
Sun 9/13
6:50 am-11:50 pm
2 stops22h 00m
$901
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Sun 10/11
7:00 am-6:20 am
1 stop18h 20m
London Heathrow
Sun 10/18
5:45 pm-11:56 am
1 stop23h 11m
$911
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Fri 8/14
5:49 pm-1:15 pm
1 stop14h 26m
London Heathrow
Fri 8/28
11:45 am-11:52 pm
2 stops17h 07m
$912
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Sat 10/10
12:46 pm-10:20 am
2 stops16h 34m
London Heathrow
Thu 10/22
6:35 pm-4:33 pm
2 stops26h 58m
$916
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Sat 8/29
4:55 pm-10:40 am
1 stop12h 45m
London Heathrow
Tue 9/8
7:30 am-11:50 pm
2 stops21h 20m
$939
Quickest round-trip
San JuanLondon
SJU - LGW
SJULGW
San Juan Luis Munoz Marin Intl
Fri 8/7
4:52 pm-9:35 am
1 stop11h 43m
London Gatwick
Mon 8/24
12:20 pm-11:54 pm
1 stop16h 34m
$953
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Sat 8/1
5:50 pm-1:15 pm
1 stop14h 25m
London Heathrow
Wed 8/12
8:40 am-10:29 pm
2 stops18h 49m
$960
San JuanLondon
SJU - LGW
SJULGW
San Juan Luis Munoz Marin Intl
Wed 8/12
2:30 pm-9:35 am
1 stop14h 05m
London Gatwick
Sun 8/16
12:20 pm-11:54 pm
1 stop16h 34m
$1,030
Showing 1-10 of 29 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-LGW
SJU-LHR
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-LGW
SJU-LHR
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 $598). Flying from Puerto Rico to London in June is currently the most expensive (average of $1,151). 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.
How far ahead should I book a flight from Puerto Rico to London?
To ensure you get the cheapest price possible for a flight from Puerto Rico to London, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 July 24, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines 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
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Entertainment
7.8
Food
7.2
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
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
Dorking
Hounslow
Winchester
Croydon
Gatwick
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Harlow
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
London flight routes
Other flight options
Popular flights
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 July 24, 2026.
Puerto Rico and London flights
Browse other Puerto Rico and London flight options. Last updated on July 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Puerto Rico to London
Discover the top 5 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 July 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$101 | Average$846 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$551 | Average$829 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$605 | Average$941 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$676 | Average$883 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$767 | Average$1,042 | FlexibilityNo cancel fee | On-time77% |