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Cheap flights from London Gatwick Airport to San Juan from £232

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 27/2. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SJU
6 ene. — 13 ene.1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Gatwick to San Juan

Enter your travel dates to find the best prices.

Cheapest flights from Gatwick to San Juan
Explore the most affordable flight options available from Gatwick to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 diciembre 2025.

mié. 31/1217:25LGW - SJU
2 stops53h 48mMultiple Airlines
mié. 28/120:05SJU - LGW
1 stop33h 55mMultiple Airlines
Deal found 5/12£843
sáb. 6/1217:25LGW - SJU
2 stops44h 12mMultiple Airlines
dom. 14/1211:05SJU - LGW
1 stop18h 55mMultiple Airlines
Deal found 6/12£874
lun. 29/1214:00LGW - SJU
1 stop16h 12mMultiple Airlines
sáb. 10/117:50SJU - LGW
2 stops22h 50mMultiple Airlines
Deal found 7/12£906
dom. 28/1214:10LGW - SJU
1 stop16h 40mMultiple Airlines
mar. 6/107:10SJU - LGW
2 stops46h 15mMultiple Airlines
Deal found 6/12£970
sáb. 6/1211:45LGW - SJU
1 stop12h 10mIberia
sáb. 13/1221:40SJU - LGW
1 stop33h 10mIberia
Deal found 5/12£1,012
lun. 22/1214:00LGW - SJU
1 stop16h 12mMultiple Airlines
vie. 26/1206:00SJU - LGW
2 stops24h 00mMultiple Airlines
Deal found 6/12£1,019
sáb. 27/1214:00LGW - SJU
1 stop16h 12mMultiple Airlines
dom. 28/1211:38SJU - LGW
1 stop18h 22mMultiple Airlines
Deal found 6/12£1,029
mar. 30/1210:00LGW - SJU
2 stops20h 39mMultiple Airlines
mar. 6/119:50SJU - LGW
1 stop30h 10mMultiple Airlines
Deal found 7/12£1,057
mar. 30/1207:20LGW - SJU
2 stops37h 24mMultiple Airlines
jue. 8/106:00SJU - LGW
1 stop24h 00mMultiple Airlines
Deal found 6/12£1,065

Find flight deals from Gatwick to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) 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 7 diciembre 2025.

Round-trip from

£553

One-way from

£232

Popular in

December

Cheapest in

March

Average price

£1,257
23/1-1/2
  • 23/1-1/2
  • 4 total stops
  • 50h 47m total
  • London to San Juan
Search Deals
27/2
  • 27/2
  • 1 total stop
  • 15h 15m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£54 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Gatwick 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 858,174 searches. Data last updated 7 diciembre 2025.
Use the filters below to find and compare flights from London Gatwick Airport to San Juan that are best for you.

Fly from

Gatwick

Fly to

San Juan

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

vie. 23/1

11:55-09:47

2 stops25h 52m

San Juan Luis Munoz Marin Intl

dom. 1/2

06:00-10:55

2 stops24h 55m

£553

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

jue. 29/1

17:10-17:05

2 stops27h 55m

San Juan Luis Munoz Marin Intl

dom. 1/2

10:52-16:45

3 stops25h 53m

£568

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

jue. 5/3

14:00-01:15

1 stop15h 15m

San Juan Luis Munoz Marin Intl

sáb. 21/3

05:01-10:05

1 stop25h 04m

£619

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

mar. 20/1

17:20-16:35

2 stops27h 15m

San Juan Luis Munoz Marin Intl

mar. 27/1

21:25-20:15

2 stops18h 50m

£621

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

lun. 26/1

11:00-13:20

2 stops30h 20m

San Juan Luis Munoz Marin Intl

jue. 5/2

06:15-09:50

2 stops23h 35m

£643

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

mié. 21/1

13:00-12:27

2 stops27h 27m

San Juan Luis Munoz Marin Intl

mar. 27/1

17:50-15:45

2 stops17h 55m

£655

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

lun. 26/1

11:55-09:58

2 stops26h 03m

San Juan Luis Munoz Marin Intl

jue. 5/2

06:15-10:55

2 stops24h 40m

£658

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

dom. 31/5

12:10-23:00

1 stop15h 50m

San Juan Luis Munoz Marin Intl

mié. 10/6

12:30-09:35

1 stop16h 05m

£671

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

vie. 1/5

21:15-02:31

2 stops34h 16m

San Juan Luis Munoz Marin Intl

jue. 7/5

07:00-20:25

2 stops32h 25m

£678

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

sáb. 21/2

21:05-01:42

2 stops32h 37m

San Juan Luis Munoz Marin Intl

sáb. 28/2

21:25-14:15

1 stop12h 50m

£699

Flights are sorted by cheapest return flights first.

Deals found on 5/12

Showing 1-10 of 16 results
1
2

Best time to book a flight from Gatwick to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Gatwick 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.

Cheapflights Insights

Everything you need to know about your flight from London Gatwick Airport to San Juan

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

Find hourly flight availability from Gatwick 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 7 diciembre 2025.

It’s optimal to fly from London Gatwick Airport to San Juan in the evening. By choosing this option you can save up to 56% on the cost of your flight, compared to a flight at midday.

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 7 diciembre 2025.
See what other customers who have flown with Iberia from London Gatwick Airport to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Iberia
7.0
Good
3,042 reviews
Check prices

Food

6.3

Overall

7.0

Boarding

7.2

Entertainment

6.6

Crew

7.7

Comfort

6.7

Reviews

1 / 20
2.0
Mediocre

Jason,Jan 2025

LHR - AUS

You owe me a flight. This trip was canceled and I got to the airport just to find out. Cheapflights did not book me another flight and left me hanging at the airport. I had to purchase a new ticket for double the price because of your company. What a shame and if nothing gets resolved I am going to file a lawsuit to get my compensation.
Iberia
7.0
Good
3,042 reviews
Iberia
7.0
Good
3,042 reviews
Check prices

Food

6.3

Overall

7.0

Boarding

7.2

Entertainment

6.6

Crew

7.7

Comfort

6.7

Reviews

1 / 20
2.0
Mediocre

Jason,Jan 2025

LHR - AUS

You owe me a flight. This trip was canceled and I got to the airport just to find out. Cheapflights did not book me another flight and left me hanging at the airport. I had to purchase a new ticket for double the price because of your company. What a shame and if nothing gets resolved I am going to file a lawsuit to get my compensation.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Gatwick Airport to San Juan?

    Departing from London Gatwick Airport to San Juan will take you 30h 20m. London Gatwick Airport and San Juan are separated by a distance of 4188 mi.

  • What is the cheapest airline to fly from London Gatwick Airport to San Juan round-trip?

    Our cheapest airline available from London Gatwick Airport to San Juan is Iberia. Our recent data shows that you can find tickets from as low as £559 on this airline. This flight start at 29% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Gatwick 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Gatwick to San Juan

Discover the top airline that operate flights from Gatwick 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 858,174 searches. Data last updated 7 diciembre 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£559Average£948FlexibilityNo cancel feeOn-time77%
Search Iberia 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 Gatwick to San Juan?

When you search for this flight from Gatwick to San Juan, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Gatwick to San Juan by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from Gatwick to San Juan with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Juan from Gatwick today and book when prices fit your budget.

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