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 £483 on this airline.

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Gatwick Airport to San Juan as you normally would.

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.

£276+ Cheap Flights from London Gatwick Airport to San Juan

Cheap flight deals from Gatwick to San Juan

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 13 September 2026.

Thu 1/1014:00 -

1 stop14h 13m

Sun 11/1010:39 -

1 stop18h 21m

Deal found 8/9£483

Fri 25/914:00 -

1 stop24h 35m

Mon 28/907:00 -

1 stop22h 00m

Deal found 11/9£592

Thu 1/1014:00 -

1 stop16h 52m

Tue 3/1119:26 -

1 stop31h 29m

Deal found 11/9£593

Tue 10/1109:35 -

2 stops19h 24m

Tue 17/1111:20 -

1 stop15h 30m

Deal found 9/9£594

Fri 9/1014:00 -

1 stop16h 53m

Thu 15/1003:00 -

1 stop26h 00m

Deal found 9/9£599

Sat 26/914:00 -

1 stop16h 52m

Tue 29/902:57 -

1 stop26h 03m

Deal found 10/9£609

Thu 5/1111:00 -

1 stop27h 15m

Sun 15/1121:35 -

1 stop31h 25m

Deal found 8/9£616

Thu 29/1011:00 -

1 stop18h 50m

Wed 11/1111:20 -

1 stop15h 35m

Deal found 8/9£623

Sat 10/1011:05 -

1 stop13h 25m

Sat 17/1005:33 -

2 stops20h 17m

Deal found 12/9£629

Tue 10/1109:35 -

1 stop28h 40m

Wed 18/1111:20 -

1 stop15h 35m

Deal found 9/9£633

Find flight deals from Gatwick to San Juan

Round-trip from	£483
One-way from	£276
Popular in	December
Cheapest in	February
Average price	£681

1/10-11/10
2 total stops
32h 34m total
London to San Juan

Search Deals

11/11-31/12
2 total stops
44h 36m total
London to San Juan

Search Deals

Highest demand for flights based on searches. 3% potential increase in price (£20 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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 London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Thu 19/11

11:00-02:50

1 stop19h 50m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£344

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Mon 23/11

08:35-09:19

2 stops28h 44m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£380

Fastest return journey

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Thu 3/12

11:00-02:42

1 stop19h 42m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£396

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Wed 2/12

09:45-18:32

1 stop36h 47m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£398

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Mon 1/2

19:45-20:00

2 stops28h 15m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£421

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Sun 15/11

21:20-00:04

2 stops30h 44m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£427

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Sun 22/11

08:30-08:39

2 stops28h 09m

San Juan Luis Munoz Marin Intl

Wed 31/12

00:00-05:00

Nonstop0h 00m

£427

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Sat 26/9

14:00-01:52

1 stop16h 52m

San Juan Luis Munoz Marin Intl

Tue 29/9

02:57-10:00

1 stop26h 03m

£609

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Tue 27/10

10:10-01:50

1 stop19h 40m

San Juan Luis Munoz Marin Intl

Tue 3/11

19:26-06:55

1 stop31h 29m

£696

LondonSan Juan

LGW London Gatwick - SJU San Juan Luis Munoz Marin Intl

LGWSJU

London Gatwick

Thu 29/10

11:00-09:15

1 stop26h 15m

San Juan Luis Munoz Marin Intl

Wed 11/11

07:23-06:55

1 stop19h 32m

£716

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 17 resultsSorted by cheapest first

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.

LGW-PR1

LGW-SJU

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

LGW-PR1

LGW-SJU

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Juan

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

3,038 reviews

Check prices

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

3,038 reviews

JetBlue

7.1

Good

3,038 reviews

Check prices

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

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 £483 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

Alternative routes

Complete your trip

Flights by cabin class

Other flight options

Other flights from Gatwick

Popular flights

Alternative routes for Gatwick to San Juan

Heathrow to Luis Munoz Marin Intl flights

Gatwick to Luis Munoz Marin Intl flights

Stansted to Luis Munoz Marin Intl flights

London City to Luis Munoz Marin Intl flights

Heathrow to Aguadilla flights

Top airline flying from Gatwick to San Juan

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest£483	Average£736	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights

Fly with Cheapflights

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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Cheap flights from London Gatwick Airport to San Juan from £276

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Gatwick to San Juan

Cheapest flights from Gatwick to San JuanExplore 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 13 September 2026.

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 13 September 2026.

Best flights from Gatwick to San JuanDiscover carefully curated flight deals from Gatwick to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Discover carefully curated flight deals from Gatwick to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Gatwick to San JuanDiscover last-minute flight deals from Gatwick to San Juan. Data last updated 13 September 2026 and is based on user searches.

Discover last-minute flight deals from Gatwick to San Juan. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Gatwick to San JuanSearch for one-way flight options from Gatwick to San Juan. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Search for one-way flight options from Gatwick to San Juan. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.

Find flight deals from Gatwick to San Juan

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Gatwick Airport to San Juan that are best for you.

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.

Cheapflights Insights

Reviews of airlines servicing San Juan

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.

Related info for your journey

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

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

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

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

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.

Alternative routes for Gatwick to San Juan

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Juan by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Gatwick to San Juan by cabin class

Find flights from Gatwick to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Gatwick and San Juan flights

Browse other Gatwick and San Juan flight options. Last updated on 13 September 2026.

Other flights from Gatwick

Browse through other flights departing from Gatwick. Flights are based on user searches made on Cheapflights and were last updated on 13 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from Gatwick to San Juan

Fly with Cheapflights

How does Cheapflights help users find flights from Gatwick to San Juan?

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

Can Cheapflights 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?

100% Free

Book with Flexibility

Travel Smart

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 13 September 2026.

Best flights from Gatwick to San Juan
Discover carefully curated flight deals from Gatwick to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 September 2026.

Last-minute flights from Gatwick to San Juan
Discover last-minute flight deals from Gatwick to San Juan. Data last updated 13 September 2026 and is based on user searches.

One-way flights from Gatwick to San Juan
Search for one-way flight options from Gatwick to San Juan. Find affordable one-way fares based on user searches. Data last updated 13 September 2026.