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$265+ Cheap flights from San Juan 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LON
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 are usually found in January or February, booked 40 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from San Juan to London

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to London (LON). 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

$265
(Combigo)
High demand for flights, 22% potential price rise
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Best time to find cheap flights, 20% potential price drop
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From San Juan to London (LON)
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One-way flight from San Juan to London (LON)
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Find flight deals from San Juan to London

Cheapest flights from San Juan to London
Explore the most affordable flight options available from San Juan to London. 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 Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/49:05 amSJU - LGW
1 stop16h 55mMultiple Airlines
Thu 12/129:10 amLGW - SJU
2 stops29h 47mMultiple Airlines
Deal found 11/3$694
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 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.
Thu 12/51:15 pmSJU - LGW
2 stops22h 35mTAP AIR PORTUGAL
Wed 12/114:35 pmLGW - SJU
2 stops34h 23mTAP AIR PORTUGAL
Deal found 11/4$881
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

Find flights from San Juan to London within your budget

Customize your flight search to find flights from San Juan 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 2,455,398 searches. Data last updated November 4, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sun 1/12

7:12 pm-8:15 am

1 stop33h 03m

$265

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

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 - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Mon 3/17

2:50 pm-8:30 pm

2 stops25h 40m

$556

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 - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Thu 12/26

6:49 am-9:20 am

2 stops22h 31m

$831

Flights are sorted by cheapest first

Deals found on 11/3

Showing 1-10 of 34 results
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Best time to book a flight from San Juan to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Juan to London. Price data was last updated on November 1, 2024.

The best time to book flights from San Juan to London is 40 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from San Juan to London (average of $649). Flying from San Juan to London 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 LON?

Find hourly flight availability from San Juan to London. 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.

It’s typically best to fly out from San Juan to London at noon. Doing so could potentially save you 11% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from San Juan to London. Price data was last updated on November 3, 2024.

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

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Rainfall in London by month

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

In terms of precipitation, rainfall in London 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 when rainfall is around 1.6 in.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 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 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. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,829 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

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 London. 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 for under $600 on Cheapflights?

    Yes, there are multiple flights from San Juan to London for under $600. The cheapest flight booked recently is on JetBlue for just $567, but on average you can expect to pay $1,085.

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

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

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

    Cheapflights users have booked flights from San Juan to London round-trip from $567. Other airlines that can offer you cheap pricing are American Airlines, from $725, and United Airlines, from $729. JetBlue is currently priced 28% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from San Juan to London are JetBlue ($341), Delta ($444), and United Airlines ($450).

  • What does SJU to LHR mean?

    SJU stands for San Juan Luis Munoz Marin Intl Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), London Southend Airport (SEN) are other airports near this flight route and their unique identifiers/IATA codes.

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

    The amount of baggage you can bring on your San Juan to London 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 London with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Juan to London 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 London that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from San Juan to London 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 London that allow pets onboard?

    Many airlines flying from San Juan to London 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 London?

    Yes, you can often find last-minute deals on San Juan to London 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 flight deals updated?

    The San Juan to London 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?

    Currently, November is the cheapest month in which you can book a flight from San Juan to London (average of $649). Flying from San Juan to London 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 London

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 London

Discover the top 8 airlines that operate flights from San Juan 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 2,455,398 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%
JetBlueCheapest$605Average$859FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$608Average$767FlexibilityNo cancel feeOn-time70%
DeltaCheapest$696Average$935FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$699Average$809FlexibilityNo cancel feeOn-time72%
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