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Cheap flights from London Gatwick Airport to San Juan from £208

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — SJU
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 8 January 2026.

Round-trip from

£446

One-way from

£208

Popular in

December

Cheapest in

March

Average price

£639
9/2-17/2
  • 9/2-17/2
  • 3 total stops
  • 57h 39m total
  • London to San Juan
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9/2
  • 9/2
  • 2 total stops
  • 39h 24m total
  • London to San Juan
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£45 potential increase over avg. return price).
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Cheapest flight prices on average. 5% potential price decrease (£33 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Find 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 8 January 2026.

Mon 9/209:00LGW - SJU
2 stops39h 24mMultiple Airlines
Tue 17/218:10SJU - LGW
1 stop18h 15mMultiple Airlines
Deal found 7/1£446
Mon 26/114:00LGW - SJU
1 stop23h 47mMultiple Airlines
Sun 8/220:45SJU - LGW
2 stops33h 15mMultiple Airlines
Deal found 6/1£454
Tue 3/211:55LGW - SJU
3 stops31h 40mMultiple Airlines
Tue 10/210:52SJU - LGW
2 stops20h 03mMultiple Airlines
Deal found 6/1£456
Fri 20/214:00LGW - SJU
1 stop16h 53mMultiple Airlines
Fri 27/212:27SJU - LGW
1 stop17h 33mMultiple Airlines
Deal found 6/1£459
Mon 26/111:55LGW - SJU
2 stops25h 52mMultiple Airlines
Tue 3/206:00SJU - LGW
2 stops24h 55mMultiple Airlines
Deal found 7/1£463
Mon 9/209:00LGW - SJU
2 stops39h 24mMultiple Airlines
Wed 18/218:10SJU - LGW
1 stop15h 50mMultiple Airlines
Deal found 7/1£465
Mon 4/514:00LGW - SJU
1 stop23h 47mMultiple Airlines
Mon 11/521:49SJU - LGW
2 stops27h 31mMultiple Airlines
Deal found 7/1£493
Thu 29/114:00LGW - SJU
1 stop23h 47mMultiple Airlines
Thu 5/206:00SJU - LGW
1 stop24h 00mMultiple Airlines
Deal found 7/1£497

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 8 January 2026.
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

Mon 26/1

11:55-09:47

2 stops25h 52m

San Juan Luis Munoz Marin Intl

Tue 3/2

06:00-10:55

2 stops24h 55m

£463

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 20/2

11:55-10:17

2 stops26h 22m

San Juan Luis Munoz Marin Intl

Fri 27/2

06:00-10:55

2 stops24h 55m

£471

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 29/1

14:00-09:47

1 stop23h 47m

San Juan Luis Munoz Marin Intl

Thu 5/2

06:00-10:00

1 stop24h 00m

£497

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 11/3

15:25-11:35

2 stops24h 10m

San Juan Luis Munoz Marin Intl

Thu 26/3

15:19-10:00

1 stop14h 41m

£512

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 5/2

14:00-10:24

1 stop24h 24m

San Juan Luis Munoz Marin Intl

Thu 12/2

16:36-10:00

2 stops37h 24m

£525

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 26/1

11:55-09:47

2 stops25h 52m

San Juan Luis Munoz Marin Intl

Sun 8/2

06:00-10:55

2 stops24h 55m

£529

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 4/5

14:00-14:31

2 stops29h 31m

San Juan Luis Munoz Marin Intl

Mon 11/5

21:49-06:20

2 stops27h 31m

£531

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 2/5

14:00-08:47

1 stop23h 47m

San Juan Luis Munoz Marin Intl

Sat 16/5

19:05-10:00

1 stop33h 55m

£534

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 9/2

09:00-20:24

2 stops39h 24m

£208

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 6/5

14:00-14:28

1 stop29h 28m

£322

Flights are sorted by cheapest return flights first.

Deals found on 8/1

Showing 1-10 of 15 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
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 8 January 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
3,076 reviews
Check prices

Entertainment

6.6

Comfort

6.7

Boarding

7.1

Crew

7.7

Food

6.3

Overall

7.0

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
3,076 reviews
Iberia
7.0
Good
3,076 reviews
Check prices

Entertainment

6.6

Comfort

6.7

Boarding

7.1

Crew

7.7

Food

6.3

Overall

7.0

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.

  • 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 £552 on this airline. This flight start at 30% 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 8 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£552Average£938FlexibilityNo 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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