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$341+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LHR
Nov 9 — Nov 161
Sat 11/9
Sat 11/16
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 Wednesday

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 4, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$567
(JetBlue)

One-way from

$341
(JetBlue)
High demand for flights, 27% potential price rise
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Best time to find cheap flights, 18% 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 4, 2024.

This JetBlue deal was found by Cheapflights users on 11/3. 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.
Tue 12/34:10 amSJU - LHR
1 stop12h 35mJetBlue
Thu 12/127:25 amLHR - SJU
1 stop19h 57mJetBlue
Deal found 11/3$567
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/22:05 amSJU - LHR
1 stop14h 30mUnited Airlines
Tue 12/109:30 amLHR - SJU
2 stops19h 06mUnited Airlines
Deal found 11/3$778
This Delta deal was found by Cheapflights users on 11/4. 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 12/36:25 pmSJU - LHR
1 stop13h 15mDelta
Wed 12/114:10 pmLHR - SJU
2 stops26h 04mDelta
Deal found 11/4$803
This Mytrip deal was found by Cheapflights users on 11/3. 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.
Thu 11/144:39 amSJU - LHR
2 stops34h 51mMultiple Airlines
Sun 11/249:55 amLHR - SJU
3 stops45h 39mMultiple Airlines
Deal found 11/3$923
This Travelocity deal was found by Cheapflights users on 11/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/76:21 pmSJU - LHR
2 stops37h 04mBritish Airways
Tue 12/177:10 pmLHR - SJU
2 stops32h 40mBritish Airways
Deal found 11/3$926
This Aeromexico deal was found by Cheapflights users on 11/4. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/181:50 pmSJU - LHR
2 stops17h 20mAir France
Wed 11/278:50 amLHR - SJU
2 stops19h 09mAir France
Deal found 11/4$929
This TAP AIR PORTUGAL deal was found by Cheapflights users on 11/4. 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 12/37:00 amSJU - LHR
2 stops30h 30mTAP AIR PORTUGAL
Sat 12/71:40 pmLHR - SJU
2 stops29h 10mTAP AIR PORTUGAL
Deal found 11/4$969
This Air Canada deal was found by Cheapflights users on 11/3. 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.
Tue 12/32:05 amSJU - LHR
2 stops25h 05mAir Canada
Thu 12/126:00 pmLHR - SJU
2 stops34h 36mAir Canada
Deal found 11/3$1,014
This Turkish Airlines deal was found by Cheapflights users on 11/4. 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 11/152:10 pmSJU - LHR
2 stops22h 00mTurkish Airlines
Sun 11/246:35 amLHR - SJU
2 stops24h 13mTurkish Airlines
Deal found 11/4$1,045
This SmartFares deal was found by Cheapflights users on 11/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/68:00 amSJU - LHR
2 stops20h 05mAer Lingus
Fri 11/158:50 amLHR - SJU
2 stops18h 48mAer Lingus
Deal found 11/3$1,162
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 11/234:50 pmSJU - LHR
1 stop15h 10mAmerican Airlines
Mon 12/29:50 amLHR - SJU
1 stop18h 52mAmerican Airlines
Deal found 11/4$1,307
This FlightHub deal was found by Cheapflights users on 11/4. 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 12/32:10 pmSJU - LHR
1 stop12h 45mLufthansa
Sat 12/79:30 amLHR - SJU
2 stops19h 06mLufthansa
Deal found 11/4$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 2,455,398 searches. Data last updated November 4, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 2/28

2:10 am-8:45 pm

1 stop14h 35m

$341

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 1/9

9:05 am-10:50 am

2 stops21h 45m

$372

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 3/2

7:00 am-7:05 am

2 stops20h 05m

$444

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 1/11

2:05 am-8:35 pm

1 stop14h 30m

$450

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 12/17

6:21 pm-12:20 pm

1 stop13h 59m

$528

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 2/16

2:05 am-7:10 am

2 stops25h 05m

$530

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 12/26

6:05 pm-11:30 am

1 stop13h 25m

$556

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 3/29

6:05 pm-2:35 pm

1 stop16h 30m

$1,964

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 11/11

8:00 am-10:50 am

2 stops22h 50m

$2,277

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 3/29

1:10 pm-6:15 am

1 stop13h 05m

$2,345

Flights are sorted by cheapest first

Deals found on 11/2

Showing 1-10 of 23 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 1, 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.

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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 $649). 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 4, 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 in the evening could potentially save you up to 9% 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 3, 2024.

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

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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 4, 2024.
See what other customers who have flown with United Airlines, Air France and Delta 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
8,829 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

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
8,829 reviews
Delta
8.0
Very good
8,829 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 10

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

JetBlue
7.5
Good
3,493 reviews
Delta
8.0
Very good
8,829 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

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
1,532 reviews
Delta
8.0
Very good
8,829 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

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
9,226 reviews
Delta
8.0
Very good
8,829 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 10

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

Turkish Airlines
7.4
Good
3,881 reviews
Delta
8.0
Very good
8,829 reviews

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

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.

  • Can I find flights from San Juan to London Heathrow Airport for under $600 on Cheapflights?

    Yes, there are multiple flights from San Juan to London Heathrow Airport for under $600. The cheapest flight booked recently is on JetBlue for just $567, but on average you can expect to pay $846.

  • Are there last-minute flights available from San Juan to London Heathrow Airport for under $700?

    There are currently 11+ open flights from San Juan to London Heathrow Airport within the next 7 days for less than $700.

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

    According to our current data, JetBlue ($567), American Airlines ($725), and United Airlines ($729) 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 28% 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 $341 on JetBlue. Other airlines that offer cheap prices include Delta from $444 and United Airlines from $450 one-way.

  • What does SJU to LHR mean?

    San Juan Luis Munoz Marin Intl Airport is SJU and London Heathrow Airport is LHR. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS), Ceiba J. Aponte de la Torre Airport (NRR) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from San Juan to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your San Juan to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from San Juan to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Juan to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from San Juan to Heathrow that allow pets onboard?

    Many airlines flying from San Juan to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from San Juan to Heathrow?

    Yes, you can often find last-minute deals on San Juan to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the San Juan to London Heathrow Airport flight deals updated?

    The San Juan to London Heathrow Airport flight deals you see on this page were last updated on 11/4.

  • 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 $649). 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.

See more FAQs

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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 8 airlines flying from San Juan to Heathrow

Discover the top 8 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 2,455,398 searches. Data last updated November 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$526Average$842FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$535Average$612FlexibilityNo cancel feeOn-time77%
KLMCheapest$549Average$736FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$587Average$872FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$608Average$767FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$661Average$865FlexibilityNo cancel feeOn-time62%
DeltaCheapest$696Average$935FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$699Average$809FlexibilityNo cancel feeOn-time72%
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