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Cheap flights from London Gatwick Airport to San Juan from £361

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SJU
20 Jul — 27 Jul1
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 20 June 2026.

Thu 29/1007:50
LGW
-
SJU
1 stop16h 10m
Multiple Airlines
Mon 9/1121:35
SJU
-
LGW
1 stop17h 25m
Multiple Airlines
Deal found 17/6£474
Wed 4/1110:10
LGW
-
SJU
1 stop20h 40m
Multiple Airlines
Sun 15/1121:35
SJU
-
LGW
1 stop31h 25m
Multiple Airlines
Deal found 16/6£510
Mon 2/1107:25
LGW
-
SJU
1 stop16h 35m
Multiple Airlines
Sun 8/1121:35
SJU
-
LGW
1 stop14h 50m
Multiple Airlines
Deal found 17/6£523
Sun 1/1108:30
LGW
-
SJU
1 stop15h 30m
Multiple Airlines
Sun 8/1121:35
SJU
-
LGW
1 stop14h 50m
Multiple Airlines
Deal found 17/6£538
Sun 20/914:00
LGW
-
SJU
1 stop22h 58m
Multiple Airlines
Sun 4/1003:00
SJU
-
LGW
1 stop26h 00m
Multiple Airlines
Deal found 16/6£565
Fri 18/914:00
LGW
-
SJU
1 stop16h 50m
Multiple Airlines
Sun 27/918:42
SJU
-
LGW
1 stop34h 18m
Multiple Airlines
Deal found 16/6£570
Thu 29/1007:50
LGW
-
SJU
1 stop16h 10m
Multiple Airlines
Sat 7/1118:10
SJU
-
LGW
1 stop12h 40m
Multiple Airlines
Deal found 17/6£574
Wed 4/1110:10
LGW
-
SJU
1 stop20h 40m
Multiple Airlines
Sat 7/1118:10
SJU
-
LGW
1 stop12h 40m
Multiple Airlines
Deal found 17/6£575
Fri 30/1012:35
LGW
-
SJU
1 stop17h 15m
Multiple Airlines
Sat 7/1118:10
SJU
-
LGW
1 stop12h 40m
Multiple Airlines
Deal found 17/6£585
Sat 31/1010:00
LGW
-
SJU
1 stop14h 00m
Multiple Airlines
Sat 7/1121:35
SJU
-
LGW
1 stop19h 25m
Multiple Airlines
Deal found 17/6£611
Tue 3/1110:10
LGW
-
SJU
1 stop20h 40m
Multiple Airlines
Sat 7/1118:10
SJU
-
LGW
1 stop12h 40m
Multiple Airlines
Deal found 17/6£616
Fri 28/812:20
LGW
-
SJU
1 stop16h 34m
JetBlue
Thu 3/906:00
SJU
-
LGW
1 stop22h 35m
JetBlue
Deal found 19/6£620

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 20 June 2026.

Round-trip from

£474

One-way from

£361

Popular in

December

Cheapest in

February

Average price

£710
29/10-9/11
  • 29/10-9/11
  • 2 total stops
  • 33h 35m total
  • London to San Juan
Search Deals
10/10
  • 10/10
  • 1 total stop
  • 16h 53m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 20 June 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

Sat 29/8

12:20-23:54

1 stop16h 34m

San Juan Luis Munoz Marin Intl

Fri 4/9

16:55-09:35

1 stop11h 40m

£667

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 14/8

12:20-23:54

1 stop16h 34m

San Juan Luis Munoz Marin Intl

Thu 3/9

16:55-09:35

1 stop11h 40m

£728

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 25/8

10:35-09:58

2 stops28h 23m

San Juan Luis Munoz Marin Intl

Sat 5/9

06:00-20:25

2 stops33h 25m

£754

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

06:12-09:45

2 stops22h 33m

£770

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 30/7

12:20-01:59

1 stop18h 39m

San Juan Luis Munoz Marin Intl

Thu 6/8

16:55-09:35

1 stop11h 40m

£809

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 13/9

10:35-13:08

2 stops31h 33m

San Juan Luis Munoz Marin Intl

Sun 27/9

10:30-20:25

3 stops28h 55m

£830

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 25/9

15:40-13:34

2 stops26h 54m

San Juan Luis Munoz Marin Intl

Tue 29/9

06:00-14:40

2 stops27h 40m

£839
Fastest return journey

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 4/8

12:20-22:04

1 stop14h 44m

San Juan Luis Munoz Marin Intl

Wed 12/8

16:55-09:35

1 stop11h 40m

£843

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 19/7

21:15-09:58

2 stops41h 43m

San Juan Luis Munoz Marin Intl

Sun 23/8

06:00-09:45

2 stops22h 45m

£860
Cheapest one-way
Fastest single journey

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 10/10

14:00-01:53

1 stop16h 53m

£361

Flights are sorted by cheapest return flights first.

Deals found on 15/6

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 20 June 2026.
See what other customers who have flown with JetBlue 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.
JetBlue
7.1
Good
2,989 reviews
Check prices

Comfort

7.5

Food

6.6

Boarding

7.3

Overall

7.1

Crew

7.9

Entertainment

7.2

Reviews

1 / 20
8.0
Excellent

Wei,Feb 2026

JFK - BOS

The JFK to BOS flight was uneventful. The delay of the inbound plane was difficult since we were near 1.5 hours in delays from the original departure time.
JetBlue
7.1
Good
2,989 reviews
JetBlue
7.1
Good
2,989 reviews
Check prices

Comfort

7.5

Food

6.6

Boarding

7.3

Overall

7.1

Crew

7.9

Entertainment

7.2

Reviews

1 / 20
8.0
Excellent

Wei,Feb 2026

JFK - BOS

The JFK to BOS flight was uneventful. The delay of the inbound plane was difficult since we were near 1.5 hours in delays from the original departure time.

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 16h 34m. 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 JetBlue. Our recent data shows that you can find tickets from as low as £494 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

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 20 June 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£494Average£754FlexibilityNo cancel feeOn-time62%
Search JetBlue 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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