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Cheap flights from London Gatwick Airport to San Juan from £385

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SJU
5 Jun — 12 Jun1
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 6 May 2026.

Sat 30/512:20
LGW
-
SJU
1 stop28h 44m
JetBlue
Tue 2/607:20
SJU
-
LGW
1 stop21h 15m
JetBlue
Deal found 5/5£629
Fri 22/512:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Sun 31/505:01
SJU
-
LGW
1 stop23h 34m
JetBlue
Deal found 1/5£632
Mon 1/612:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Mon 15/608:05
SJU
-
LGW
1 stop20h 30m
JetBlue
Deal found 3/5£655
Sat 30/512:20
LGW
-
SJU
1 stop14h 22m
JetBlue
Sat 6/615:25
SJU
-
LGW
1 stop13h 10m
JetBlue
Deal found 2/5£656
Sun 20/914:00
LGW
-
SJU
1 stop16h 50m
Multiple Airlines
Mon 5/1009:03
SJU
-
LGW
1 stop19h 57m
Multiple Airlines
Deal found 3/5£717
Tue 3/1115:25
LGW
-
SJU
1 stop29h 15m
Multiple Airlines
Tue 17/1121:35
SJU
-
LGW
1 stop14h 50m
Multiple Airlines
Deal found 5/5£730
Wed 3/606:00
LGW
-
SJU
1 stop14h 55m
Multiple Airlines
Wed 10/617:25
SJU
-
LGW
1 stop13h 15m
Multiple Airlines
Deal found 4/5£735
Thu 29/1007:50
LGW
-
SJU
1 stop16h 10m
Multiple Airlines
Sat 7/1118:10
SJU
-
LGW
1 stop12h 40m
Multiple Airlines
Deal found 4/5£735

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 6 May 2026.

Round-trip from

£629

One-way from

£385

Popular in

July

Cheapest in

February

Average price

£580
JetBlue
  • JetBlue
  • 30/5-2/6
  • 2 total stops
  • 49h 59m total
  • London to San Juan
Search Deals
19/5
  • 19/5
  • 2 total stops
  • 34h 29m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£67 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
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 6 May 2026.
Use the filters below to find and compare flights from London Gatwick Airport to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 20/9

10:35-13:08

2 stops31h 33m

San Juan Luis Munoz Marin Intl

Mon 5/10

10:30-15:35

2 stops24h 05m

£758
Fastest return journey

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 30/5

12:20-21:42

1 stop14h 22m

San Juan Luis Munoz Marin Intl

Sat 6/6

13:27-09:35

1 stop15h 08m

£759

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 28/6

12:20-10:01

1 stop26h 41m

San Juan Luis Munoz Marin Intl

Tue 7/7

20:40-09:35

1 stop31h 55m

£772

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 9/10

12:05-13:08

2 stops30h 03m

San Juan Luis Munoz Marin Intl

Mon 19/10

06:12-15:35

2 stops28h 23m

£797

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 27/10

10:40-13:03

2 stops30h 23m

San Juan Luis Munoz Marin Intl

Wed 4/11

07:00-09:50

2 stops22h 50m

£820

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 29/10

10:40-13:03

2 stops30h 23m

San Juan Luis Munoz Marin Intl

Sat 7/11

07:00-09:50

2 stops22h 50m

£820

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 17/10

12:05-23:58

2 stops40h 53m

San Juan Luis Munoz Marin Intl

Fri 30/10

19:50-09:50

2 stops34h 00m

£845

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 17/7

12:20-01:55

1 stop18h 35m

San Juan Luis Munoz Marin Intl

Tue 28/7

08:30-09:35

1 stop20h 05m

£868

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 17/7

14:00-02:11

1 stop17h 11m

San Juan Luis Munoz Marin Intl

Tue 28/7

06:00-10:00

1 stop23h 00m

£871

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 14/7

12:10-09:58

2 stops26h 48m

San Juan Luis Munoz Marin Intl

Wed 12/8

16:55-20:30

2 stops22h 35m

£912

Flights are sorted by cheapest return flights first.

Deals found on 1/5

Showing 1-10 of 19 resultsSorted by cheapest first
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
No data available for this route at this time. Please check back soon.

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 6 May 2026.
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
3,212 reviews
Check prices

Crew

7.7

Overall

7.0

Comfort

6.7

Entertainment

6.6

Food

6.3

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.
Iberia
7.0
Good
3,212 reviews
Iberia
7.0
Good
3,212 reviews
Check prices

Crew

7.7

Overall

7.0

Comfort

6.7

Entertainment

6.6

Food

6.3

Boarding

7.2

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

LHR - DFW

Transparency. There was a gate change that was not disclosed on my ticket that made the connection to Vegas hurried. Also, it’s a given that for international travel, luggage pickup is required at first port of entry in the US, but please don’t have international employees set the expectation that luggage does not have to be picked up until the final destination. If I followed her instructions, my luggage would have been sitting at my connection now.

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 14h 22m. London Gatwick Airport and San Juan are separated by a distance of 4188 mi. This flight may include one or multiple stops.

  • 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 £934 on this airline.

  • 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

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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 6 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£934Average£977FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

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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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