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Cheap flights from London Gatwick Airport to San Juan from £277

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 13/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Gatwick Airport to San Juan

Cheap return flights

Multiple Airlines Logo
14:00 - 02:50LGW-SJU
16h 50m1 stop
Multiple Airlines Logo
08:40 - 06:00SJU-LGW
17h 20m1 stop
£502Multiple Airlines
Find Deal
Sat, 24 Jan - Sun, 1 Feb
Multiple Airlines Logo
14:00 - 02:50LGW-SJU
16h 50m1 stop
Multiple Airlines Logo
21:00 - 10:00SJU-LGW
33h 00m2 stops
£516Multiple Airlines
Find Deal
Sat, 24 Jan - Sun, 1 Feb
JetBlue Logo
12:10 - 12:27LGW-SJU
29h 17m1 stop
JetBlue Logo
20:22 - 09:35SJU-LGW
32h 13m1 stop
£527JetBlue
Find Deal
Sun, 12 Oct - Sun, 19 Oct
Multiple Airlines Logo
13:05 - 15:24LGW-SJU
31h 19m1 stop
Multiple Airlines Logo
16:22 - 07:00SJU-LGW
33h 38m2 stops
£540Multiple Airlines
Find Deal
Fri, 17 Oct - Sat, 25 Oct
JetBlue Logo
12:10 - 12:27LGW-SJU
29h 17m1 stop
JetBlue Logo
02:30 - 09:35SJU-LGW
26h 05m1 stop
£572JetBlue
Find Deal
Sun, 12 Oct - Sat, 18 Oct
Icelandair Logo
12:10 - 12:58LGW-SJU
29h 48m2 stops
Icelandair Logo
20:22 - 09:35SJU-LGW
32h 13m1 stop
£595Icelandair
Find Deal
Sun, 12 Oct - Sun, 19 Oct
TAP AIR PORTUGAL Logo
16:00 - 03:17LGW-SJU
39h 17m2 stops
TAP AIR PORTUGAL Logo
06:10 - 09:50SJU-LGW
23h 40m2 stops
£612TAP AIR PORTUGAL
Find Deal
Thu, 6 Nov - Sat, 15 Nov
TAP AIR PORTUGAL Logo
10:40 - 03:17LGW-SJU
20h 37m2 stops
TAP AIR PORTUGAL Logo
06:10 - 09:50SJU-LGW
23h 40m2 stops
£613TAP AIR PORTUGAL
Find Deal
Fri, 7 Nov - Sat, 15 Nov
Icelandair Logo
11:55 - 01:47LGW-SJU
17h 52m2 stops
Icelandair Logo
16:40 - 14:40SJU-LGW
17h 00m2 stops
£751Icelandair
Find Deal
Fri, 20 Mar - Wed, 1 Apr
Iberia Logo
11:45 - 19:55LGW-SJU
12h 10m1 stop
Iberia Logo
14:45 - 19:00SJU-LGW
48h 15m2 stops
£794Iberia
Find Deal
Mon, 2 Mar - Wed, 4 Mar

TAP AIR PORTUGAL flights from London Gatwick Airport to San Juan

Our best TAP AIR PORTUGAL deals on London Gatwick Airport to San Juan flight tickets
TAP AIR PORTUGAL
6 Nov
LGW16:00London Gatwick
39h 17m
2 stops
SJU03:17San Juan Luis Munoz Marin Intl
15 Nov
SJU06:10San Juan Luis Munoz Marin Intl
23h 40m
2 stops
LGW09:50London Gatwick
£612
Find similar
TAP AIR PORTUGAL
7 Nov
LGW10:40London Gatwick
20h 37m
2 stops
SJU03:17San Juan Luis Munoz Marin Intl
15 Nov
SJU06:10San Juan Luis Munoz Marin Intl
23h 40m
2 stops
LGW09:50London Gatwick
£613
Find similar
TAP AIR PORTUGAL
6 Nov
LGW10:40London Gatwick
20h 37m
2 stops
SJU03:17San Juan Luis Munoz Marin Intl
15 Nov
SJU06:10San Juan Luis Munoz Marin Intl
23h 40m
2 stops
LGW09:50London Gatwick
£613
Find similar

JetBlue flights from London Gatwick Airport to San Juan

Our best JetBlue deals on London Gatwick Airport to San Juan flight tickets
JetBlue
12 Oct
LGW12:10London Gatwick
29h 17m
1 stop
SJU12:27San Juan Luis Munoz Marin Intl
19 Oct
SJU20:22San Juan Luis Munoz Marin Intl
32h 13m
1 stop
LGW09:35London Gatwick
£527
Find similar
JetBlue
12 Oct
LGW12:10London Gatwick
29h 17m
1 stop
SJU12:27San Juan Luis Munoz Marin Intl
18 Oct
SJU02:30San Juan Luis Munoz Marin Intl
26h 05m
1 stop
LGW09:35London Gatwick
£572
Find similar
JetBlue
1 Oct
LGW12:10London Gatwick
29h 07m
1 stop
SJU12:17San Juan Luis Munoz Marin Intl
24 Oct
SJU13:00San Juan Luis Munoz Marin Intl
15h 35m
1 stop
LGW09:35London Gatwick
£768
Find similar

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 26 September 2025.
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

Sat 24/1

14:00-02:50

1 stop16h 50m

San Juan Luis Munoz Marin Intl

Sun 1/2

08:40-06:00

1 stop17h 20m

£502

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 24/1

14:00-02:50

1 stop16h 50m

San Juan Luis Munoz Marin Intl

Sun 1/2

21:00-10:00

2 stops33h 00m

£516

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 12/10

12:10-12:27

1 stop29h 17m

San Juan Luis Munoz Marin Intl

Sun 19/10

20:22-09:35

1 stop32h 13m

£527

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 17/10

13:05-15:24

1 stop31h 19m

San Juan Luis Munoz Marin Intl

Sat 25/10

16:22-07:00

2 stops33h 38m

£540

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 12/10

12:10-12:27

1 stop29h 17m

San Juan Luis Munoz Marin Intl

Sat 18/10

02:30-09:35

1 stop26h 05m

£572

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 12/10

12:10-12:58

2 stops29h 48m

San Juan Luis Munoz Marin Intl

Sun 19/10

20:22-09:35

1 stop32h 13m

£595

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 6/11

16:00-03:17

2 stops39h 17m

San Juan Luis Munoz Marin Intl

Sat 15/11

06:10-09:50

2 stops23h 40m

£612

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 7/11

10:40-03:17

2 stops20h 37m

San Juan Luis Munoz Marin Intl

Sat 15/11

06:10-09:50

2 stops23h 40m

£613

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 20/3

11:55-01:47

2 stops17h 52m

San Juan Luis Munoz Marin Intl

Wed 1/4

16:40-14:40

2 stops17h 00m

£751

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 2/3

11:45-19:55

1 stop12h 10m

San Juan Luis Munoz Marin Intl

Wed 4/3

14:45-19:00

2 stops48h 15m

£794

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Juan from

How to get the cheapest flight ticket from London Gatwick Airport to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart on your flight to San Juan is on a Monday when prices can be found for as low as £531. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around £647.

What is the cheapest time of day to depart on your flight to San Juan?

In the morning is the cheapest time of day to fly from London Gatwick Airport to San Juan when you can find flight prices for as low as £587. Flying to San Juan in the morning is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive, with an average ticket price of £839.

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

Direct flights

None
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.
Search flight deals

  • How far is London Gatwick to San Juan by plane?

    There are 4191.3 mi between London Gatwick and San Juan. 12h 10m 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 £518Free CancellationRating
7.0
2,955 reviews
Search Iberia flights
IcelandairPriceFrom £640Free CancellationRating
7.0
545 reviews
Search Icelandair flights

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