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Cheap flights from London Gatwick Airport to San Juan from £245

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport to San Juan departing on 23/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Gatwick Airport to San Juan

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 - 19:14
LGW
-
SJU
34h 29m
2 stops
Multiple Airlines Logo
01:45 - 10:00
SJU
-
LGW
28h 15m
1 stop
£471Multiple Airlines
Thu, 19 Mar - Fri, 27 Mar
Multiple Airlines Logo
12:50 - 19:06
LGW
-
SJU
34h 16m
2 stops
Multiple Airlines Logo
18:10 - 10:50
SJU
-
LGW
12h 40m
1 stop
£474Multiple Airlines
Mon, 9 Mar - Mon, 16 Mar
Multiple Airlines Logo
14:00 - 14:28
LGW
-
SJU
29h 28m
1 stop
Multiple Airlines Logo
19:05 - 10:00
SJU
-
LGW
33h 55m
1 stop
£481Multiple Airlines
Fri, 24 Apr - Sat, 2 May
Multiple Airlines Logo
12:50 - 19:06
LGW
-
SJU
34h 16m
2 stops
Multiple Airlines Logo
18:10 - 10:50
SJU
-
LGW
12h 40m
1 stop
£483Multiple Airlines
Mon, 9 Mar - Tue, 17 Mar
Multiple Airlines Logo
13:00 - 00:43
LGW
-
SJU
39h 43m
2 stops
Multiple Airlines Logo
06:00 - 10:00
SJU
-
LGW
24h 00m
1 stop
£491Multiple Airlines
Wed, 25 Feb - Thu, 5 Mar
Multiple Airlines Logo
08:35 - 19:55
LGW
-
SJU
15h 20m
1 stop
Multiple Airlines Logo
18:10 - 14:00
SJU
-
LGW
15h 50m
1 stop
£497Multiple Airlines
Wed, 11 Feb - Wed, 25 Feb
Multiple Airlines Logo
08:35 - 19:55
LGW
-
SJU
15h 20m
1 stop
Multiple Airlines Logo
21:25 - 19:00
SJU
-
LGW
17h 35m
1 stop
£499Multiple Airlines
Mon, 9 Mar - Wed, 18 Mar
Multiple Airlines Logo
08:35 - 19:55
LGW
-
SJU
15h 20m
1 stop
Multiple Airlines Logo
18:10 - 10:50
SJU
-
LGW
12h 40m
1 stop
£507Multiple Airlines
Mon, 9 Mar - Tue, 17 Mar
Multiple Airlines Logo
11:55 - 10:17
LGW
-
SJU
26h 22m
2 stops
Multiple Airlines Logo
06:00 - 10:55
SJU
-
LGW
24h 55m
2 stops
£513Multiple Airlines
Thu, 19 Feb - Sat, 28 Feb
Multiple Airlines Logo
11:55 - 10:17
LGW
-
SJU
26h 22m
2 stops
Multiple Airlines Logo
06:00 - 10:55
SJU
-
LGW
24h 55m
2 stops
£514Multiple Airlines
Wed, 25 Feb - Thu, 5 Mar

momondo Fare Finder

 
Customise your flight search to find flights from London Gatwick Airport 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, momondo users made 279,928 searches. Data last updated 16 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

Fly to

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 19/3

12:45-19:14

2 stops34h 29m

San Juan Luis Munoz Marin Intl

Fri 27/3

01:45-10:00

1 stop28h 15m

£471

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 9/3

12:50-19:06

2 stops34h 16m

San Juan Luis Munoz Marin Intl

Mon 16/3

18:10-10:50

1 stop12h 40m

£474

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 24/4

14:00-14:28

1 stop29h 28m

San Juan Luis Munoz Marin Intl

Sat 2/5

19:05-10:00

1 stop33h 55m

£481

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 9/3

12:50-19:06

2 stops34h 16m

San Juan Luis Munoz Marin Intl

Tue 17/3

18:10-10:50

1 stop12h 40m

£483

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 25/2

13:00-00:43

2 stops39h 43m

San Juan Luis Munoz Marin Intl

Thu 5/3

06:00-10:00

1 stop24h 00m

£491

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 11/2

08:35-19:55

1 stop15h 20m

San Juan Luis Munoz Marin Intl

Wed 25/2

18:10-14:00

1 stop15h 50m

£497

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 9/3

08:35-19:55

1 stop15h 20m

San Juan Luis Munoz Marin Intl

Wed 18/3

21:25-19:00

1 stop17h 35m

£499

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 9/3

08:35-19:55

1 stop15h 20m

San Juan Luis Munoz Marin Intl

Tue 17/3

18:10-10:50

1 stop12h 40m

£507

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 19/2

11:55-10:17

2 stops26h 22m

San Juan Luis Munoz Marin Intl

Sat 28/2

06:00-10:55

2 stops24h 55m

£513

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 25/2

11:55-10:17

2 stops26h 22m

San Juan Luis Munoz Marin Intl

Thu 5/3

06:00-10:55

2 stops24h 55m

£514

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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Cheap London Gatwick Airport to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Gatwick Airport to San Juan

Fastest flight time

13h 59m

Direct flights

None
The fastest flight from London Gatwick Airport to San Juan takes 13h 59m
There are no direct flights from London Gatwick Airport to San Juan. There are no popular flight routes from London Gatwick Airport to San Juan.
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  • How far is London Gatwick to San Juan by plane?

    There are 4191.3 mi between London Gatwick and San Juan. 13h 59m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Gatwick Airport to San Juan?

    Prices for flights from London Gatwick Airport to San Juan are refreshed on a daily basis.

  • How many operators does momondo search for flights from London Gatwick Airport to San Juan?

  • How old do you have to be to fly from London Gatwick Airport to San Juan?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Gatwick Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The necessary travel and health documents for your San Juan trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London Gatwick Airport to San Juan

Compare and see reviews for airlines that fly from London Gatwick Airport to San Juan with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom £556Free CancellationRating
7.0
3,087 reviews
Search Iberia flights

  • How do I get Price Alerts for flights from London Gatwick Airport to San Juan?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to London Gatwick Airport from San Juan. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from London Gatwick Airport to San Juan with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from London to San Juan?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to San Juan . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to San Juan with flexible booking policies on momondo?

All flight searches from London to San Juan on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to San Juan?

Once all potential London to San Juan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to San Juan right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from London and alert you when they change.

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Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan
San Juan Luis Munoz Marin Intl Airport