$306+ Cheap flights from San Juan to Heathrow (LHR)
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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
Jun 11 — Jun 181
Round-trip
1 adult, Economy
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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
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Best
Last-minute
One-way
Cheapest flights from San Juan to HeathrowExplore the most affordable flight options available from San Juan to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
Explore the most affordable flight options available from San Juan to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
This American Airlines deal was found by Cheapflights users on 5/9. 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.
Mon 9/142:05 pm
SJU
- LHR
1 stop13h 55m
American Airlines
Fri 9/256:15 am
LHR
- SJU
1 stop17h 35m
American Airlines
Deal found 5/9![American Airlines logo]()
$818
This Expedia deal was found by Cheapflights users on 5/9. 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.
Wed 11/114:37 pm
SJU
- LHR
1 stop15h 28m
Iberia
Tue 11/247:30 am
LHR
- SJU
2 stops20h 26m
Iberia
Deal found 5/9![Iberia logo]()
$820
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 11/188:10 am
SJU
- LHR
1 stop17h 45m
United Airlines
Fri 11/276:50 am
LHR
- SJU
2 stops21h 46m
United Airlines
Deal found 5/12![United Airlines logo]()
$825
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 8/124:55 pm
SJU
- LHR
1 stop12h 45m
United Airlines
Wed 8/267:30 am
LHR
- SJU
2 stops21h 20m
United Airlines
Deal found 5/12![United Airlines logo]()
$827
This KLM deal was found by Cheapflights users on 5/12. 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.
Wed 11/112:05 pm
SJU
- LHR
1 stop14h 00m
KLM
Tue 11/2410:10 am
LHR
- SJU
1 stop17h 45m
KLM
Deal found 5/12![KLM logo]()
$854
This Delta deal was found by Cheapflights users on 5/11. 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 8/126:48 am
SJU
- LHR
2 stops21h 02m
Delta
Wed 8/266:35 pm
LHR
- SJU
2 stops24h 07m
Delta
Deal found 5/11![Delta logo]()
$858
This Iberia deal was found by Cheapflights users on 5/12. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:15 pm
SJU
- LHR
1 stop16h 40m
Iberia
Fri 8/2810:50 am
LHR
- SJU
1 stop13h 00m
Iberia
Deal found 5/12![Iberia logo]()
$859
This American Airlines deal was found by Cheapflights users on 5/9. 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 8/1410:33 am
SJU
- LHR
1 stop15h 22m
American Airlines
Fri 8/286:15 am
LHR
- SJU
1 stop14h 10m
American Airlines
Deal found 5/9![American Airlines logo]()
$863
Best flights from San Juan to HeathrowDiscover carefully curated flight deals from San Juan to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
Discover carefully curated flight deals from San Juan to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
This United Airlines deal was found by Cheapflights users on 5/9. 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 9/144:55 pm
SJU
- LHR
1 stop12h 45m
United Airlines
Fri 9/256:50 am
LHR
- SJU
2 stops22h 00m
United Airlines
Deal found 5/9![United Airlines logo]()
$825
This KLM deal was found by Cheapflights users on 5/12. 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.
Thu 11/51:46 pm
SJU
- LHR
1 stop17h 54m
KLM
Tue 11/1011:55 am
LHR
- SJU
1 stop16h 00m
KLM
Deal found 5/12![KLM logo]()
$899
This Delta deal was found by Cheapflights users on 5/10. 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 8/196:48 am
SJU
- LHR
2 stops18h 32m
Delta
Sun 8/238:05 pm
LHR
- SJU
2 stops22h 37m
Delta
Deal found 5/10![Delta logo]()
$928
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Wed 8/194:55 pm
SJU
- LHR
1 stop12h 45m
United Airlines
Sun 8/237:30 am
LHR
- SJU
2 stops21h 20m
United Airlines
Deal found 5/10![United Airlines logo]()
$881
This Delta deal was found by Cheapflights users on 5/12. 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.
Fri 9/2512:58 pm
SJU
- LHR
2 stops18h 07m
Delta
Sun 10/188:05 pm
LHR
- SJU
2 stops22h 16m
Delta
Deal found 5/12![Delta logo]()
$948
This United Airlines deal was found by Cheapflights users on 5/11. 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 8/111:00 am
SJU
- LHR
2 stops24h 55m
United Airlines
Mon 8/177:30 am
LHR
- SJU
2 stops21h 20m
United Airlines
Deal found 5/11![United Airlines logo]()
$917
This KLM deal was found by Cheapflights users on 5/12. 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.
Tue 7/215:56 pm
SJU
- LHR
1 stop14h 19m
KLM
Wed 8/512:50 pm
LHR
- SJU
1 stop16h 02m
KLM
Deal found 5/12![KLM logo]()
$1,013
This United Airlines deal was found by Cheapflights users on 5/10. 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 9/241:25 pm
SJU
- LHR
1 stop12h 50m
United Airlines
Mon 9/287:30 am
LHR
- SJU
2 stops21h 20m
United Airlines
Deal found 5/10![United Airlines logo]()
$925
This United Airlines deal was found by Cheapflights users on 5/9. 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 10/226:45 pm
SJU
- LHR
1 stop21h 40m
United Airlines
Sat 10/317:30 am
LHR
- SJU
2 stops17h 52m
United Airlines
Deal found 5/9![United Airlines logo]()
$925
Last-minute flights from San Juan to HeathrowDiscover last-minute flight deals from San Juan to Heathrow. Data last updated May 12, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Heathrow. Data last updated May 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/8. 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 5/147:40 am
SJU
- LHR
1 stop18h 05m
United Airlines
Fri 5/226:50 am
LHR
- SJU
2 stops34h 14m
United Airlines
Deal found 5/8![United Airlines logo]()
$944
This United Airlines deal was found by Cheapflights users on 5/10. 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 5/141:00 am
SJU
- LHR
1 stop25h 15m
United Airlines
Sun 6/76:50 am
LHR
- SJU
2 stops22h 00m
United Airlines
Deal found 5/10![United Airlines logo]()
$974
This Orbitz deal was found by Cheapflights users on 5/10. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:40 pm
SJU
- LHR
1 stop14h 40m
Iberia
Mon 5/259:15 am
LHR
- SJU
1 stop14h 50m
Iberia
Deal found 5/10![Iberia logo]()
$963
This United Airlines deal was found by Cheapflights users on 5/10. 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 5/157:00 am
SJU
- LHR
2 stops19h 15m
United Airlines
Fri 5/224:40 pm
LHR
- SJU
2 stops26h 05m
United Airlines
Deal found 5/10![United Airlines logo]()
$977
This United Airlines deal was found by Cheapflights users on 5/10. 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 5/157:00 am
SJU
- LHR
2 stops19h 15m
United Airlines
Mon 5/256:50 am
LHR
- SJU
2 stops34h 44m
United Airlines
Deal found 5/10![United Airlines logo]()
$978
This Priceline deal was found by Cheapflights users on 5/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/161:25 pm
SJU
- LHR
1 stop13h 25m
British Airways
Sun 6/711:30 am
LHR
- SJU
1 stop12h 30m
British Airways
Deal found 5/10![British Airways logo]()
$967
This United Airlines deal was found by Cheapflights users on 5/11. 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 5/162:55 pm
SJU
- LHR
1 stop15h 40m
United Airlines
Sat 5/231:35 pm
LHR
- SJU
2 stops36h 49m
United Airlines
Deal found 5/11![United Airlines logo]()
$985
This Trip.com deal was found by Cheapflights users on 5/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/118:40 pm
SJU
- LHR
1 stop14h 40m
Iberia
Thu 6/186:45 pm
LHR
- SJU
1 stop25h 40m
Iberia
Deal found 5/12![Iberia logo]()
$931
This Trip.com deal was found by Cheapflights users on 5/11. 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.
Sat 6/138:40 pm
SJU
- LHR
1 stop13h 15m
Iberia
Sun 6/2110:50 am
LHR
- SJU
1 stop13h 10m
Iberia
Deal found 5/11![Iberia logo]()
$921
This Trip.com deal was found by Cheapflights users on 5/10. 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.
Tue 6/235:15 pm
SJU
- LHR
1 stop16h 40m
Iberia
Fri 7/36:15 am
LHR
- SJU
1 stop14h 10m
Iberia
Deal found 5/10![Iberia logo]()
$922
One-way flights from San Juan to HeathrowSearch for one-way flight options from San Juan to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
Search for one-way flight options from San Juan to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
This KLM deal was found by Cheapflights users on 5/8. 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 11/11:46 pm
SJU
- LHR
1 stop15h 14m
KLM
Deal found 5/8![KLM logo]()
$306
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Mon 10/51:25 pm
SJU
- LHR
2 stops16h 15m
United Airlines
Deal found 5/12![United Airlines logo]()
$307
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sun 11/18:30 am
SJU
- LHR
2 stops20h 40m
United Airlines
Deal found 5/12![United Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 5/8. 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 11/72:20 pm
SJU
- LHR
2 stops16h 30m
United Airlines
Deal found 5/8![United Airlines logo]()
$356
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Tue 7/217:20 am
SJU
- LHR
2 stops20h 00m
United Airlines
Deal found 5/12![United Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 5/12. 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 8/284:55 pm
SJU
- LHR
1 stop12h 45m
United Airlines
Deal found 5/12![United Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:06 am
SJU
- LHR
3 stops27h 49m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$472
This Trip.com deal was found by Cheapflights users on 5/10. 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.
Wed 7/16:00 am
SJU
- LHR
1 stop19h 30m
TAP AIR PORTUGAL
Deal found 5/10![TAP AIR PORTUGAL logo]()
$489
This Trip.com deal was found by Cheapflights users on 5/10. 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.
Mon 6/11:25 pm
SJU
- LHR
1 stop16h 00m
Lufthansa
Deal found 5/10![Lufthansa logo]()
$504
This TAP AIR PORTUGAL deal was found by Cheapflights users on 5/10. 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.
Wed 6/39:54 am
SJU
- LHR
2 stops27h 56m
TAP AIR PORTUGAL
Deal found 5/10![TAP AIR PORTUGAL logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/234:30 pm
SJU
- LHR
2 stops20h 45m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$560
Find flight deals from San Juan to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 12, 2026.
Round-trip from | $818 (American Airlines) |
|---|---|
One-way from | $306 (KLM) |
Popular in | July |
Cheapest in | September |
Average price | $920 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Juan to Heathrow 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 May 12, 2026.
Use the filters below to find and compare flights from San Juan to London Heathrow Airport 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
Mon 9/14
4:55 pm-10:40 am
1 stop12h 45m
London Heathrow
Fri 9/25
6:50 am-11:50 pm
2 stops22h 00m
$825
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Wed 8/19
4:55 pm-10:40 am
1 stop12h 45m
London Heathrow
Sun 8/23
7:30 am-11:50 pm
2 stops21h 20m
$881
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Thu 11/5
1:46 pm-11:40 am
1 stop17h 54m
London Heathrow
Tue 11/10
11:55 am-11:55 pm
1 stop16h 00m
$899
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Tue 8/11
1:00 am-6:55 am
2 stops24h 55m
London Heathrow
Mon 8/17
7:30 am-11:50 pm
2 stops21h 20m
$917
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Thu 9/24
1:25 pm-7:15 am
1 stop12h 50m
London Heathrow
Mon 9/28
7:30 am-11:50 pm
2 stops21h 20m
$925
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Thu 10/22
6:45 pm-9:25 pm
1 stop21h 40m
London Heathrow
Sat 10/31
7:30 am-9:22 pm
2 stops17h 52m
$925
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Wed 8/19
6:48 am-6:20 am
2 stops18h 32m
London Heathrow
Sun 8/23
8:05 pm-1:42 pm
2 stops22h 37m
$928
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Fri 9/25
12:58 pm-12:05 pm
2 stops18h 07m
London Heathrow
Sun 10/18
8:05 pm-1:21 pm
2 stops22h 16m
$948
Quickest round-trip
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Tue 7/21
5:56 pm-1:15 pm
1 stop14h 19m
London Heathrow
Wed 8/5
12:50 pm-11:52 pm
1 stop16h 02m
$1,013
Cheapest one-way
San JuanLondon
SJU - LHR
SJULHR
San Juan Luis Munoz Marin Intl
Thu 7/23
6:45 pm-9:25 pm
1 stop21h 40m
$381
Showing 1-10 of 18 resultsSorted by cheapest first
Best time to book a flight from San Juan to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Juan with our price prediction graph.
PR1-LHR
SJU-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 San Juan to London Heathrow Airport
PR1-LHR
SJU-LHR
How far ahead should I book a flight from San Juan to London Heathrow Airport?
To ensure you get the cheapest price possible for a flight from San Juan to London Heathrow Airport, you should look to book at least 46 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.
What is the cheapest month to book a flight from San Juan to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from San Juan to London Heathrow Airport (average of $101). Flying from San Juan to London Heathrow Airport in June is currently the most expensive (average of $893). 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 much does it cost to fly round-trip from San Juan to London Heathrow Airport?
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated May 12, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andJetBlue from San Juan to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Food
7.2
Entertainment
7.8
Crew
8.5
Overall
7.9
Boarding
8.1
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 San Juan to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Top 4 airlines flying from San Juan to Heathrow
Discover the top 4 airlines that operate flights from San Juan to Heathrow. 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 May 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$101 | Average$865 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$551 | Average$817 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$584 | Average$859 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$605 | Average$941 | FlexibilityNo cancel fee | On-time71% |