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$335+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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The best prices from San Juan to London Heathrow are usually found in January or February, booked 26 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap 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 November 21, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$562
(JetBlue)

One-way from

$335
(Kiwi.com)
High demand for flights, 26% potential price rise
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Best time to find cheap flights, 19% potential price drop
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From San Juan to London Heathrow
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One-way flight from San Juan to London Heathrow
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Find flight deals from San Juan to Heathrow

Cheapest flights from San Juan to Heathrow
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 November 21, 2024.

This JetBlue deal was found by Cheapflights users on 11/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/293:56 amSJU - LHR
1 stop12h 49mJetBlue
Sat 12/78:25 amLHR - SJU
1 stop14h 54mJetBlue
Deal found 11/20$630
This American Airlines deal was found by Cheapflights users on 11/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/34:50 pmSJU - LHR
1 stop15h 10mAmerican Airlines
Wed 12/1110:05 amLHR - SJU
1 stop14h 50mAmerican Airlines
Deal found 11/21$753
This Delta deal was found by Cheapflights users on 11/20. 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.
Sun 12/296:30 amSJU - LHR
1 stop19h 50mDelta
Wed 1/812:40 pmLHR - SJU
1 stop15h 19mDelta
Deal found 11/20$825
This TAP AIR PORTUGAL deal was found by Cheapflights users on 11/21. 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.
Wed 12/43:45 pmSJU - LHR
2 stops26h 55mTAP AIR PORTUGAL
Mon 12/96:30 pmLHR - SJU
2 stops32h 28mTAP AIR PORTUGAL
Deal found 11/21$828
This Air France deal was found by Cheapflights users on 11/19. 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.
Tue 12/33:41 pmSJU - LHR
1 stop15h 59mAir France
Tue 12/109:00 amLHR - SJU
2 stops19h 59mAir France
Deal found 11/19$861
This British Airways deal was found by Cheapflights users on 11/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:50 pmSJU - LHR
1 stop13h 30mBritish Airways
Tue 1/141:10 pmLHR - SJU
1 stop14h 48mBritish Airways
Deal found 11/20$900
This Expedia deal was found by Cheapflights users on 11/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/293:56 amSJU - LHR
2 stops24h 09mAer Lingus
Sat 12/78:45 pmLHR - SJU
2 stops30h 13mAer Lingus
Deal found 11/20$971
This Kiwi.com deal was found by Cheapflights users on 11/20. 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.
Sat 11/309:20 pmSJU - LHR
1 stop16h 55mMultiple Airlines
Sat 12/78:40 pmLHR - SJU
2 stops46h 16mMultiple Airlines
Deal found 11/20$1,027
This FlightHub deal was found by Cheapflights users on 11/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/262:10 amSJU - LHR
2 stops37h 20mIcelandair
Tue 1/78:40 pmLHR - SJU
2 stops35h 10mIcelandair
Deal found 11/20$1,206
This Air Canada deal was found by Cheapflights users on 11/20. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/22:05 amSJU - LHR
2 stops25h 05mAir Canada
Sat 12/76:00 pmLHR - SJU
2 stops34h 36mAir Canada
Deal found 11/20$1,315
This United Airlines deal was found by Cheapflights users on 11/21. 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 12/34:52 pmSJU - LHR
1 stop14h 23mUnited Airlines
Wed 12/1111:10 amLHR - SJU
2 stops17h 26mUnited Airlines
Deal found 11/21$1,356

Find flights from San Juan to Heathrow within your budget

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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 1/11

1:55 am-8:45 pm

1 stop14h 50m

London Heathrow

Sat 1/25

12:20 pm-1:42 am

1 stop17h 22m

$562

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 1/13

4:35 pm-9:40 am

1 stop13h 05m

London Heathrow

Fri 1/24

9:15 am-7:45 pm

1 stop14h 30m

$723

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 1/14

3:30 pm-11:40 am

1 stop16h 10m

London Heathrow

Tue 1/28

8:40 am-11:45 pm

2 stops19h 05m

$730

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 1/12

6:15 am-7:55 am

1 stop21h 40m

London Heathrow

Fri 1/24

10:00 am-11:59 pm

2 stops17h 59m

$735

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 3/10

3:53 pm-9:40 am

1 stop13h 47m

London Heathrow

Mon 3/17

7:50 am-7:45 pm

2 stops15h 55m

$740

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 3/10

2:25 pm-11:10 am

2 stops16h 45m

London Heathrow

Mon 3/17

7:35 pm-10:13 pm

2 stops30h 38m

$800

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 12/4

3:45 pm-10:40 pm

2 stops26h 55m

London Heathrow

Mon 12/9

6:30 pm-10:58 pm

2 stops32h 28m

$828

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 1/12

5:40 am-5:55 am

1 stop20h 15m

London Heathrow

Sat 1/25

7:05 pm-2:48 pm

2 stops23h 43m

$907

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 1/12

6:05 am-8:05 am

2 stops22h 00m

London Heathrow

Sat 1/25

12:10 pm-3:50 am

2 stops19h 40m

$966

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 12/3

2:05 am-8:35 pm

1 stop14h 30m

London Heathrow

Mon 12/9

9:30 am-12:36 am

2 stops19h 06m

$1,027

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 24 results
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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.
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.

Travel insights for flights from San Juan to Heathrow

Get recent, data-driven insights about flights from San Juan to Heathrow including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Juan to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Heathrow. Price data was last updated on November 15, 2024.

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 26 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, November is the cheapest month in which you can book a flight from San Juan to London Heathrow Airport (average of $648). Flying from San Juan to London Heathrow Airport in June is currently the most expensive (average of $1,089). 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.

What is the cheapest time of day to fly from SJU to LHR?

Find hourly flight availability from San Juan to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

One of the essential ways to save on airfare from San Juan to London Heathrow Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

What is the cheapest day to fly from San Juan to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from San Juan to Heathrow. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their San Juan to London Heathrow Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 November 21, 2024.
See what other customers who have flown with JetBlue, Aer Lingus and United Airlines from San Juan to London have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,755 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,755 reviews
Delta
8.0
Very good
8,755 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,755 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
663 reviews
Delta
8.0
Very good
8,755 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,525 reviews
Delta
8.0
Very good
8,755 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,172 reviews
Delta
8.0
Very good
8,755 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines flying from San Juan to London Heathrow Airport round-trip?

    According to our current data, JetBlue ($562), British Airways ($723), and KLM ($730) offers the cheapest pricing from San Juan to London Heathrow Airport. You may be able to fly from San Juan to London Heathrow Airport for 30% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Juan to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as $346 on JetBlue. Other airlines that offer cheap prices include Delta from $450 and United Airlines from $504 one-way.

  • Can I find deals for flights from San Juan to Heathrow that include hotel bookings?

    Yes. In addition to deals on San Juan to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Heathrow.

  • Can I find deals for business class flights from San Juan to Heathrow?

    Yes. Cheapflights offers flight deals from San Juan to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from San Juan to London Heathrow Airport (average of $648). Flying from San Juan to London Heathrow Airport in June is currently the most expensive (average of $1,089). 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.

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Alternative routes for San Juan to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Heathrow flights

Top 7 airlines flying from San Juan to Heathrow

Discover the top 7 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$549Average$775FlexibilityNo cancel feeOn-time75%
IberiaCheapest$577Average$991FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$582Average$846FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$587Average$780FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$587Average$855FlexibilityNo cancel feeOn-time71%
DeltaCheapest$651Average$849FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$654Average$770FlexibilityNo cancel feeOn-time72%
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