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Cheap flights from London Gatwick Airport to San Juan from £304

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SJU
9 Jul — 16 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 9 June 2026.

Sat 19/914:00
LGW
-
SJU
1 stop16h 50m
Multiple Airlines
Sat 3/1018:31
SJU
-
LGW
1 stop34h 29m
Multiple Airlines
Deal found 7/6£579
Sat 19/914:00
LGW
-
SJU
1 stop16h 50m
Multiple Airlines
Wed 30/906:15
SJU
-
LGW
2 stops46h 45m
Multiple Airlines
Deal found 5/6£600
Mon 21/914:00
LGW
-
SJU
1 stop16h 50m
Multiple Airlines
Wed 30/918:42
SJU
-
LGW
1 stop34h 18m
Multiple Airlines
Deal found 9/6£607
Mon 31/812:20
LGW
-
SJU
1 stop26h 40m
JetBlue
Sat 5/920:50
SJU
-
LGW
1 stop31h 45m
JetBlue
Deal found 9/6£616
Wed 2/912:20
LGW
-
SJU
1 stop16h 34m
Multiple Airlines
Sat 12/917:15
SJU
-
LGW
1 stop12h 35m
Multiple Airlines
Deal found 6/6£627
Mon 31/812:20
LGW
-
SJU
1 stop30h 40m
Multiple Airlines
Sat 5/919:20
SJU
-
LGW
2 stops58h 30m
Multiple Airlines
Deal found 7/6£640
Sat 5/912:20
LGW
-
SJU
1 stop16h 34m
Multiple Airlines
Sat 19/917:15
SJU
-
LGW
1 stop12h 35m
Multiple Airlines
Deal found 9/6£644
Tue 7/712:20
LGW
-
SJU
1 stop30h 20m
JetBlue
Mon 13/716:55
SJU
-
LGW
1 stop11h 40m
JetBlue
Deal found 8/6£645

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 9 June 2026.

Round-trip from

£579

One-way from

£304

Popular in

December

Cheapest in

September

Average price

£662
19/9-3/10
  • 19/9-3/10
  • 2 total stops
  • 51h 19m total
  • London to San Juan
Search Deals
24/9
  • 24/9
  • 3 total stops
  • 51h 55m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£29 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 9 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

Mon 31/8

12:05-10:00

2 stops26h 55m

San Juan Luis Munoz Marin Intl

Mon 14/9

06:00-20:25

2 stops33h 25m

£735

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 5/9

12:05-10:00

2 stops26h 55m

San Juan Luis Munoz Marin Intl

Sat 12/9

06:00-09:45

2 stops22h 45m

£741

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 24/9

10:35-23:58

2 stops42h 23m

San Juan Luis Munoz Marin Intl

Mon 28/9

06:00-15:35

2 stops28h 35m

£744

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 1/9

21:15-23:54

2 stops55h 39m

San Juan Luis Munoz Marin Intl

Sat 12/9

06:00-09:45

2 stops22h 45m

£745

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 30/8

21:15-10:00

2 stops41h 45m

San Juan Luis Munoz Marin Intl

Sat 12/9

06:00-09:45

2 stops22h 45m

£745
Fastest return journey

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 22/7

12:20-22:04

1 stop14h 44m

San Juan Luis Munoz Marin Intl

Wed 29/7

16:52-09:35

1 stop11h 43m

£784

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

£793

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 16/7

12:20-02:19

1 stop18h 59m

San Juan Luis Munoz Marin Intl

Thu 23/7

16:55-09:35

1 stop11h 40m

£795

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 29/6

12:05-09:56

2 stops26h 51m

San Juan Luis Munoz Marin Intl

Mon 6/7

15:24-15:35

2 stops19h 11m

£849

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 16/11

10:40-14:03

2 stops31h 23m

San Juan Luis Munoz Marin Intl

Mon 23/11

15:35-20:35

2 stops25h 00m

£862

Flights are sorted by cheapest return flights first.

Deals found on 7/6

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 9 June 2026.
See what other customers who have flown with JetBlue and 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.
JetBlue
7.1
Good
2,979 reviews
Check prices

Crew

7.9

Boarding

7.3

Overall

7.1

Entertainment

7.2

Food

6.6

Comfort

7.5

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
2,979 reviews
JetBlue
7.1
Good
2,979 reviews
Check prices

Crew

7.9

Boarding

7.3

Overall

7.1

Entertainment

7.2

Food

6.6

Comfort

7.5

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.
Iberia
7.0
Good
3,230 reviews
JetBlue
7.1
Good
2,979 reviews
Check prices

Crew

7.9

Boarding

7.3

Overall

7.1

Entertainment

7.2

Food

6.6

Comfort

7.5

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 26h 55m. London Gatwick Airport and San Juan are separated by a distance of 4188 mi.

  • What are the cheapest airlines flying 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 £488 on this airline. An additional option worth looking into is Iberia, starting at £945.

  • 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

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

Top 2 airlines flying from Gatwick to San Juan

Discover the top 2 airlines 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 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£488Average£732FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£945Average£989FlexibilityNo 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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