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Cheap flights from London Gatwick Airport to San Juan from £305

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 11/1. 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
13:00 - 15:32LGW-SJU
30h 32m1 stop
Multiple Airlines Logo
11:07 - 06:00SJU-LGW
38h 53m2 stops
£559Multiple Airlines
Find Deal
Sun, 8 Mar - Sat, 21 Mar
Multiple Airlines Logo
20:50 - 16:40LGW-SJU
23h 50m2 stops
Multiple Airlines Logo
18:10 - 16:20SJU-LGW
18h 10m2 stops
£560Multiple Airlines
Find Deal
Sun, 1 Mar - Wed, 11 Mar
Multiple Airlines Logo
11:55 - 15:35LGW-SJU
31h 40m3 stops
Multiple Airlines Logo
06:00 - 10:55SJU-LGW
24h 55m3 stops
£565Multiple Airlines
Find Deal
Fri, 16 Jan - Sat, 24 Jan
Multiple Airlines Logo
11:55 - 15:35LGW-SJU
31h 40m3 stops
Multiple Airlines Logo
06:00 - 10:55SJU-LGW
24h 55m3 stops
£569Multiple Airlines
Find Deal
Tue, 27 Jan - Tue, 3 Feb
Multiple Airlines Logo
14:00 - 15:35LGW-SJU
29h 35m2 stops
Multiple Airlines Logo
19:44 - 10:00SJU-LGW
34h 16m2 stops
£574Multiple Airlines
Find Deal
Thu, 15 Jan - Thu, 22 Jan
Multiple Airlines Logo
12:45 - 11:35LGW-SJU
26h 50m3 stops
Multiple Airlines Logo
07:00 - 10:00SJU-LGW
23h 00m1 stop
£576Multiple Airlines
Find Deal
Fri, 13 Mar - Fri, 27 Mar
Multiple Airlines Logo
10:00 - 19:55LGW-SJU
13h 55m1 stop
Multiple Airlines Logo
03:55 - 10:00SJU-LGW
26h 05m1 stop
£577Multiple Airlines
Find Deal
Tue, 3 Feb - Thu, 12 Feb
Multiple Airlines Logo
13:00 - 00:45LGW-SJU
39h 45m2 stops
Multiple Airlines Logo
02:55 - 10:05SJU-LGW
27h 10m1 stop
£583Multiple Airlines
Find Deal
Sun, 8 Mar - Fri, 20 Mar
Multiple Airlines Logo
14:00 - 09:47LGW-SJU
23h 47m1 stop
Multiple Airlines Logo
16:40 - 20:40SJU-LGW
24h 00m3 stops
£585Multiple Airlines
Find Deal
Fri, 16 Jan - Sat, 24 Jan
Multiple Airlines Logo
14:00 - 09:47LGW-SJU
23h 47m1 stop
Multiple Airlines Logo
17:45 - 20:40SJU-LGW
22h 55m2 stops
£588Multiple Airlines
Find Deal
Fri, 20 Feb - Sat, 7 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
26 Jan
LGW10:40London Gatwick
27h 36m
2 stops
SJU10:16San Juan Luis Munoz Marin Intl
5 Feb
SJU11:06San Juan Luis Munoz Marin Intl
24h 44m
2 stops
LGW15:50London Gatwick
£642
Find similar
TAP AIR PORTUGAL
23 Mar
LGW11:00London Gatwick
29h 31m
2 stops
SJU12:31San Juan Luis Munoz Marin Intl
6 Apr
SJU15:30San Juan Luis Munoz Marin Intl
19h 05m
2 stops
LGW15:35London Gatwick
£671
Find similar
TAP AIR PORTUGAL
12 Jan
LGW10:40London Gatwick
27h 36m
2 stops
SJU10:16San Juan Luis Munoz Marin Intl
16 Jan
SJU11:06San Juan Luis Munoz Marin Intl
24h 39m
2 stops
LGW15:45London Gatwick
£757
Find similar

Iberia flights from London Gatwick Airport to San Juan

Our best Iberia deals on London Gatwick Airport to San Juan flight tickets
Iberia
11 Mar
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
16 Mar
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
£658
Find similar
Iberia
11 Mar
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
18 Mar
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
£670
Find similar
Iberia
11 Mar
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
17 Mar
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
£674
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 2 December 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

Sun 8/3

13:00-15:32

1 stop30h 32m

San Juan Luis Munoz Marin Intl

Sat 21/3

11:07-06:00

2 stops38h 53m

£559

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 1/3

20:50-16:40

2 stops23h 50m

San Juan Luis Munoz Marin Intl

Wed 11/3

18:10-16:20

2 stops18h 10m

£560

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 16/1

11:55-15:35

3 stops31h 40m

San Juan Luis Munoz Marin Intl

Sat 24/1

06:00-10:55

3 stops24h 55m

£565

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 27/1

11:55-15:35

3 stops31h 40m

San Juan Luis Munoz Marin Intl

Tue 3/2

06:00-10:55

3 stops24h 55m

£569

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 15/1

14:00-15:35

2 stops29h 35m

San Juan Luis Munoz Marin Intl

Thu 22/1

19:44-10:00

2 stops34h 16m

£574

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 13/3

12:45-11:35

3 stops26h 50m

San Juan Luis Munoz Marin Intl

Fri 27/3

07:00-10:00

1 stop23h 00m

£576

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 3/2

10:00-19:55

1 stop13h 55m

San Juan Luis Munoz Marin Intl

Thu 12/2

03:55-10:00

1 stop26h 05m

£577

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sun 8/3

13:00-00:45

2 stops39h 45m

San Juan Luis Munoz Marin Intl

Fri 20/3

02:55-10:05

1 stop27h 10m

£583

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 16/1

14:00-09:47

1 stop23h 47m

San Juan Luis Munoz Marin Intl

Sat 24/1

16:40-20:40

3 stops24h 00m

£585

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 20/2

14:00-09:47

1 stop23h 47m

San Juan Luis Munoz Marin Intl

Sat 7/3

17:45-20:40

2 stops22h 55m

£588

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 £538. 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 £655.

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 £594. 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 £850.

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

14h 16m

Direct flights

None
The fastest flight from London Gatwick Airport to San Juan takes 14h 16m
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. 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 £563Free CancellationRating
7.0
3,038 reviews
Search Iberia 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