Find flights
When to book
Airlines
FAQs

Cheap flights from London to San Juan from £254

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 23/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SJU
25 Nov — 2 Dec1
1 adult

The best prices from London to San Juan are usually found in January or February, booked 28 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Find flights from London to San Juan within your budget

Customise your flight search to find flights from London to San Juan 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 953,013 searches. Data last updated 20 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 23/2

06:50-03:50

2 stops25h 00m

San Juan Luis Munoz Marin Intl

Fri 28/2

10:44-06:00

1 stop15h 16m

£527

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 28/2

12:20-03:16

1 stop18h 56m

San Juan Luis Munoz Marin Intl

Fri 7/3

03:26-05:55

1 stop22h 29m

£534

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 25/2

08:25-18:52

1 stop14h 27m

San Juan Luis Munoz Marin Intl

Sun 2/3

22:45-20:45

1 stop18h 00m

£536

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 19/3

11:25-19:45

1 stop12h 20m

San Juan Luis Munoz Marin Intl

Fri 4/4

13:55-09:05

2 stops14h 10m

£568

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 13/1

06:30-00:37

3 stops22h 07m

San Juan Luis Munoz Marin Intl

Mon 27/1

22:09-07:55

2 stops29h 46m

£573

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 28/2

15:10-21:46

2 stops34h 36m

San Juan Luis Munoz Marin Intl

Sat 8/3

15:46-07:30

1 stop35h 44m

£605

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 9/12

11:00-14:50

2 stops31h 50m

San Juan Luis Munoz Marin Intl

Thu 12/12

07:00-15:50

2 stops28h 50m

£607

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 20/1

08:15-12:52

2 stops32h 37m

San Juan Luis Munoz Marin Intl

Sat 1/2

05:00-11:25

2 stops26h 25m

£623

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 18/1

15:00-14:35

1 stop27h 35m

San Juan Luis Munoz Marin Intl

Wed 19/2

02:05-07:10

2 stops25h 05m

£650

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 8/1

11:55-03:50

2 stops19h 55m

San Juan Luis Munoz Marin Intl

Fri 24/1

11:45-10:55

2 stops19h 10m

£673

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 39 results
1
2
3
4

Cheap flight deals from London to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Juan (PR1). 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 20 November 2024.

Round-trip from

£527

One-way from

£254

Popular in

August

Cheapest in

January
13/1-20/2
  • 13/1-20/2
  • 2 total stops
  • 37h 21m total
  • London to San Juan
Search Deals
23/1
  • 23/1
  • 3 total stops
  • 45h 57m total
  • London to San Juan
Search Deals
High demand for flights, 23% potential price rise
Search Deals
Best time to find cheap flights, 18% potential price drop
Search Deals

Find flight deals from London to San Juan

Cheapest flights from London to San Juan
Explore the most affordable flight options available from London to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Mon 9/1212:00LGW - SJU
1 stop17h 57mMultiple Airlines
Thu 12/1205:26SJU - LGW
2 stops37h 39mMultiple Airlines
Deal found 19/11£531
Wed 27/1108:25LHR - SJU
1 stop22h 48mIcelandair
Wed 4/1218:20SJU - LHR
1 stop22h 25mIcelandair
Deal found 19/11£577
Wed 4/1212:35LHR - SJU
1 stop16h 07mFinnair
Sun 8/1216:45SJU - LHR
1 stop34h 15mFinnair
Deal found 19/11£593
Tue 10/1208:25LHR - SJU
1 stop18h 33mJetBlue
Sat 14/1204:10SJU - LHR
1 stop12h 35mJetBlue
Deal found 19/11£594
Mon 9/1211:00LGW - SJU
2 stops31h 50mTAP AIR PORTUGAL
Thu 12/1207:00SJU - LGW
2 stops28h 50mTAP AIR PORTUGAL
Deal found 19/11£607
Fri 22/1114:30LHR - SJU
2 stops28h 10mAir Canada
Thu 5/1202:05SJU - LHR
2 stops25h 05mAir Canada
Deal found 19/11£643
Fri 22/1114:30LHR - SJU
2 stops28h 10mMultiple Airlines
Fri 6/1214:10SJU - LHR
2 stops17h 40mMultiple Airlines
Deal found 19/11£647
Mon 9/1218:30LHR - SJU
2 stops32h 28mTAP AIR PORTUGAL
Thu 12/1215:45SJU - LHR
2 stops21h 45mTAP AIR PORTUGAL
Deal found 19/11£685
Wed 27/1116:20LHR - SJU
2 stops26h 20mUnited Airlines
Wed 4/1207:45SJU - LHR
2 stops22h 30mUnited Airlines
Deal found 19/11£692
Fri 27/1211:45LHR - SJU
1 stop16h 41mIberia
Thu 9/121:20SJU - LHR
2 stops15h 40mIberia
Deal found 19/11£800
Sun 29/1215:50LHR - SJU
1 stop14h 28mDelta
Wed 8/118:10SJU - LHR
1 stop22h 00mDelta
Deal found 19/11£909
Wed 11/1210:05LHR - SJU
1 stop14h 50mAmerican Airlines
Wed 18/1214:19SJU - LHR
1 stop12h 41mAmerican Airlines
Deal found 19/11£922

Best time to book a flight from London to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from London with our price prediction graph.
Estimated return 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 London to San Juan

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

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

Use this chart to determine the optimal time to book a return flight from London to San Juan. Price data was last updated on 15 November 2024.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, April is the cheapest month in which you can book a flight from London to San Juan (average of £631). Flying from London to San Juan in July is currently the most expensive (average of £899). 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 LON to SJU?

Find hourly flight availability from London to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2024.

It’s optimal to fly from London to San Juan in the morning. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the evening.

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

Use this chart to determine the cheapest time to fly return from London to San Juan. Price data was last updated on 18 November 2024.

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

Rainfall in San Juan by month

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

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

Temperature in San Juan by month

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

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated 20 November 2024.
To help decide which airline to fly from London to San Juan, see what other customers have to say about Icelandair, TAP AIR PORTUGAL and Iberia. 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
8,758 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Delta
8.0
Very Good
8,758 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Finnair
7.7
Good
1,300 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

JetBlue
7.5
Good
3,396 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

United Airlines
7.4
Good
9,172 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Turkish Airlines
7.4
Good
3,914 reviews
Delta
8.0
Very Good
8,758 reviews
Check prices

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 10

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

Find useful and relevant information for your journey from London to San Juan. 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 London to San Juan round-trip?

    Cheapflights users have booked flights from London to San Juan round-trip from £540. Other airlines that can offer you cheap pricing are JetBlue, from £564, and Finnair, from £586. Icelandair is priced at 18% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapet airlines for a one-way flight from London to San Juan are United Airlines (£556), Avianca (£563), and Lufthansa (£688).

  • What are the most popular routes from London to San Juan?

    The most popular route from London to San Juan is London Heathrow - San Juan Luis Munoz Marin Intl. You may also consider London Gatwick - San Juan Luis Munoz Marin Intl or London City - San Juan Luis Munoz Marin Intl.

  • Where are the most common stopover locations when flying from London to San Juan?

    The most popular stopover on flights from London to San Juan is Madrid. New York sees the second most layovers for non-direct flights flying from London to San Juan.

  • What are some popular things to do or see while on a stopover in Madrid?

    Spain Building, Plaza Mayor, and Puerta del Sol are the most popular attractions in Madrid if you're in need of something to do during your stopover. Spain Building, Plaza Mayor and Puerta del Sol are located about 8.5 mi, 8.6 mi, and 8.4 mi, respectively from Madrid Barajas if you are interested in checking them out. Those on a stopover in Madrid in need of a car hire can book one at Madrid Barajas for about £23.

  • What are some popular points of interest to see during a stopover in New York?

    Times Square, New York City Center, and August Wilson Theater are the most popular attractions in New York if you're in need of something to do during your stopover. Times Square, New York City Center, and August Wilson Theater can be accessed by travelling approximately 13.6 mi, 13.6 mi, and 13.7 mi, respectively from New York John F Kennedy Intl. Travellers in need of a car in New York can hire one for about £45 per day.

  • Where are the least popular stopover locations for London to San Juan flights?

    London to San Juan flights that have stopovers will least frequently stop in Miami.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London to San Juan 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 London to San Juan?

    Currently, April is the cheapest month in which you can book a flight from London to San Juan (average of £631). Flying from London to San Juan in July is currently the most expensive (average of £899). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from London to San Juan

Discover the top 8 airlines that operate flights from London to San Juan. 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 953,013 searches. Data last updated 20 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£410Average£941FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£419Average£622FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£450Average£649FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£451Average£609FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£529Average£1,068FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£542Average£948FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£560Average£808FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£594Average£795FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to San Juan?

Cheapflights helps you search for flights from London to San Juan via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to San Juan?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from London to San Juan.

Can Cheapflights find flights from London to San Juan with no change fees?

Yes, we can. To see specific flights from London to San Juan with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to San Juan become cheaper?

Not ready to book yet? You can track prices for flights from London to San Juan on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines