London

$278+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LON
Nov 26 — Dec 31
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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 Tuesday

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 21, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$562
(JetBlue)

One-way from

$278
(Kiwi.com)
High demand for flights, 21% potential price rise
Best time to find cheap flights, 24% potential price drop
From San Juan to London (LON)
One-way flight from San Juan to London (LON)

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 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 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 11/307:15 amSJU - LGW
1 stop22h 45mMultiple Airlines
Sat 12/72:35 pmLGW - SJU
2 stops52h 21mMultiple Airlines
Deal found 11/20$765
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 TAP AIR PORTUGAL 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/55:00 pmSJU - LGW
2 stops18h 50mTAP AIR PORTUGAL
Mon 12/94:35 pmLGW - SJU
2 stops34h 23mTAP AIR PORTUGAL
Deal found 11/20$865
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

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 2,612,795 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 - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Mon 3/10

9:20 pm-6:50 pm

1 stop17h 30m

London Gatwick

Thu 3/20

11:20 am-11:10 am

2 stops27h 50m

$715

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 - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Thu 12/5

5:00 pm-3:50 pm

2 stops18h 50m

London Gatwick

Mon 12/9

4:35 pm-10:58 pm

2 stops34h 23m

$865

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Tue 2/11

9:20 pm-6:50 pm

1 stop17h 30m

London Gatwick

Thu 2/27

10:55 am-7:45 pm

1 stop12h 50m

$876

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 38 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 15, 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.

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 $648). 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 21, 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 18, 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.

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 21, 2024.
See what other customers who have flown with JetBlue, British Airways and TAP AIR PORTUGAL 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.
8.0
Very good
8,755 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

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

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

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

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

7.5
Good
663 reviews
8.0
Very good
8,755 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

7.4
Good
1,525 reviews
8.0
Very good
8,755 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 10

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

7.4
Good
9,172 reviews
8.0
Very good
8,755 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

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.
  • 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 $562. Other airlines that can offer you cheap pricing are British Airways, from $723, and KLM, from $730. JetBlue is currently priced 29% 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 ($346), Delta ($450), and Iberia ($463).

  • 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.

  • 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 $648). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

Top 7 airlines flying from San Juan to London

Discover the top 7 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$549Average$775FlexibilityNo cancel feeOn-time75%
IberiaCheapest$577Average$991FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$582Average$850FlexibilityNo 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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