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Cheap flights from the United Kingdom to San Juan from £232

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to San Juan departing on 27/2. 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 the United Kingdom to San Juan

Recent return flight deals from the United Kingdom to San Juan

Enter your travel dates to find the best prices.
JetBlue Logo
08:05 - 23:50
LHR
-
SJU
19h 45m1 stop
JetBlue Logo
05:01 - 09:30
SJU
-
LHR
24h 29m1 stop
£549JetBlue
Mon, 19 Jan - Sun, 25 Jan
JetBlue Logo
07:25 - 23:44
LHR
-
SJU
20h 19m1 stop
JetBlue Logo
06:01 - 09:30
SJU
-
LHR
23h 29m1 stop
£550JetBlue
Thu, 5 Mar - Sat, 21 Mar
Avianca Logo
22:05 - 16:50
LHR
-
SJU
23h 45m1 stop
Avianca Logo
18:15 - 15:35
SJU
-
LHR
16h 20m1 stop
£553Avianca
Thu, 23 Apr - Sun, 26 Apr
Avianca Logo
22:05 - 16:50
LHR
-
SJU
23h 45m1 stop
Avianca Logo
18:15 - 15:35
SJU
-
LHR
16h 20m1 stop
£574Avianca
Thu, 23 Apr - Sat, 25 Apr
Iberia Logo
09:10 - 19:55
LCY
-
SJU
14h 45m1 stop
Iberia Logo
21:25 - 14:05
SJU
-
LCY
12h 40m1 stop
£907Iberia
Tue, 20 Jan - Tue, 27 Jan
Iberia Logo
09:10 - 19:55
LCY
-
SJU
14h 45m1 stop
Iberia Logo
21:25 - 08:50
SJU
-
LCY
31h 25m1 stop
£919Iberia
Mon, 26 Jan - Thu, 5 Feb
British Airways Logo
06:50 - 23:44
LCY
-
SJU
20h 54m2 stops
British Airways Logo
21:25 - 14:05
SJU
-
LCY
12h 40m1 stop
£942British Airways
Fri, 27 Feb - Tue, 3 Mar
British Airways Logo
06:50 - 23:44
LCY
-
SJU
20h 54m2 stops
British Airways Logo
21:25 - 14:05
SJU
-
LCY
12h 40m1 stop
£943British Airways
Fri, 27 Feb - Tue, 3 Mar
United Airlines Logo
06:00 - 00:36
BHX
-
SJU
22h 36m2 stops
United Airlines Logo
08:10 - 12:35
SJU
-
BHX
24h 25m2 stops
£997United Airlines
Tue, 20 Jan - Tue, 27 Jan
United Airlines Logo
13:20 - 13:17
BHX
-
SJU
27h 57m2 stops
United Airlines Logo
14:15 - 12:45
SJU
-
BHX
18h 30m2 stops
£1,014United Airlines
Mon, 19 Jan - Mon, 26 Jan

TAP AIR PORTUGAL flights from United Kingdom to San Juan Luis Munoz Marin Intl Airport

Our best TAP AIR PORTUGAL deals on United Kingdom to San Juan Luis Munoz Marin Intl Airport flight tickets
TAP AIR PORTUGAL
26 Jan
LGW11:00London Gatwick
30h 20m
2 stops
SJU13:20San Juan Luis Munoz Marin Intl
5 Feb
SJU06:15San Juan Luis Munoz Marin Intl
23h 35m
2 stops
LGW09:50London Gatwick
£643
Find similar
TAP AIR PORTUGAL
26 Jan
LGW10:40London Gatwick
27h 18m
2 stops
SJU09:58San Juan Luis Munoz Marin Intl
5 Feb
SJU06:15San Juan Luis Munoz Marin Intl
23h 35m
2 stops
LGW09:50London Gatwick
£649
Find similar
TAP AIR PORTUGAL
26 Jan
LHR08:15London Heathrow
29h 43m
2 stops
SJU09:58San Juan Luis Munoz Marin Intl
5 Feb
SJU06:15San Juan Luis Munoz Marin Intl
26h 25m
2 stops
LHR12:40London Heathrow
£652
Find similar

JetBlue flights from United Kingdom to San Juan Luis Munoz Marin Intl Airport

Our best JetBlue deals on United Kingdom to San Juan Luis Munoz Marin Intl Airport flight tickets
JetBlue
19 Jan
LHR08:05London Heathrow
19h 45m
1 stop
SJU23:50San Juan Luis Munoz Marin Intl
25 Jan
SJU05:01San Juan Luis Munoz Marin Intl
24h 29m
1 stop
LHR09:30London Heathrow
£549
Find similar
JetBlue
5 Mar
LHR07:25London Heathrow
20h 19m
1 stop
SJU23:44San Juan Luis Munoz Marin Intl
21 Mar
SJU06:01San Juan Luis Munoz Marin Intl
23h 29m
1 stop
LHR09:30London Heathrow
£550
Find similar
JetBlue
22 Apr
LHR08:15London Heathrow
17h 05m
1 stop
SJU20:20San Juan Luis Munoz Marin Intl
24 Apr
SJU01:59San Juan Luis Munoz Marin Intl
13h 46m
1 stop
LHR20:45London Heathrow
£551
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to San Juan Luis Munoz Marin Intl Airport 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 7 December 2025.
Use the filters below to find and compare flights from the United Kingdom to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 19/1

08:05-23:50

1 stop19h 45m

San Juan Luis Munoz Marin Intl

Sun 25/1

05:01-09:30

1 stop24h 29m

£549

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 5/3

07:25-23:44

1 stop20h 19m

San Juan Luis Munoz Marin Intl

Sat 21/3

06:01-09:30

1 stop23h 29m

£550

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 23/4

22:05-16:50

1 stop23h 45m

San Juan Luis Munoz Marin Intl

Sun 26/4

18:15-15:35

1 stop16h 20m

£553

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 23/4

22:05-16:50

1 stop23h 45m

San Juan Luis Munoz Marin Intl

Sat 25/4

18:15-15:35

1 stop16h 20m

£574

LondonSan Juan

LCY - SJU

LCYSJU

London City

Tue 20/1

09:10-19:55

1 stop14h 45m

San Juan Luis Munoz Marin Intl

Tue 27/1

21:25-14:05

1 stop12h 40m

£907

LondonSan Juan

LCY - SJU

LCYSJU

London City

Mon 26/1

09:10-19:55

1 stop14h 45m

San Juan Luis Munoz Marin Intl

Thu 5/2

21:25-08:50

1 stop31h 25m

£919

LondonSan Juan

LCY - SJU

LCYSJU

London City

Fri 27/2

06:50-23:44

2 stops20h 54m

San Juan Luis Munoz Marin Intl

Tue 3/3

21:25-14:05

1 stop12h 40m

£942

LondonSan Juan

LCY - SJU

LCYSJU

London City

Fri 27/2

06:50-23:44

2 stops20h 54m

San Juan Luis Munoz Marin Intl

Tue 3/3

21:25-14:05

1 stop12h 40m

£943

BirminghamSan Juan

BHX - SJU

BHXSJU

Birmingham

Tue 20/1

06:00-00:36

2 stops22h 36m

San Juan Luis Munoz Marin Intl

Tue 27/1

08:10-12:35

2 stops24h 25m

£997

BirminghamSan Juan

BHX - SJU

BHXSJU

Birmingham

Mon 19/1

13:20-13:17

2 stops27h 57m

San Juan Luis Munoz Marin Intl

Mon 26/1

14:15-12:45

2 stops18h 30m

£1,014

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 United Kingdom to San Juan Luis Munoz Marin Intl Airport

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 month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel during the month of September, then book flights to San Juan Luis Munoz Marin Intl Airport from United Kingdom during February instead. Flights to San Juan Luis Munoz Marin Intl Airport in February, while not as cheap as those in September, still average around £566.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest day to depart from United Kingdom to San Juan Luis Munoz Marin Intl Airport is on a Monday when prices can be found for as low as £533. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from United Kingdom to San Juan Luis Munoz Marin Intl Airport for around £650.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

In the morning is the cheapest time of day to fly from United Kingdom to San Juan Luis Munoz Marin Intl Airport when you can find flight prices for as low as £590. Flying to San Juan Luis Munoz Marin Intl Airport in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £843 on average. Flights to San Juan Luis Munoz Marin Intl Airport from United Kingdom in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around £651 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from United Kingdom for as low as £526 on momondo.

Can stopping save me money on United Kingdom to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 57% on your flight if you consider stops on a United Kingdom to San Juan Luis Munoz Marin Intl Airport flight.

Cheap United Kingdom to San Juan Luis Munoz Marin Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to San Juan Luis Munoz Marin Intl Airport

Fastest flight time

12h 50m

Direct flights

None
The fastest flight from United Kingdom to San Juan Luis Munoz Marin Intl Airport takes 12h 50m
There are no direct flights from United Kingdom to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from United Kingdom to San Juan Luis Munoz Marin Intl Airport.
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  • When did momondo last update prices for flights from United Kingdom to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from United Kingdom to San Juan Luis Munoz Marin Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United Kingdom to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from United Kingdom to San Juan Luis Munoz Marin Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The necessary travel and health documents for your San Juan Luis Munoz Marin Intl Airport 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 United Kingdom to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from United Kingdom to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Virgin AtlanticPriceFrom £335Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £441Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights
FinnairPriceFrom £452Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
IcelandairPriceFrom £488Free CancellationRating
7.0
586 reviews
Search Icelandair flights
IberiaPriceFrom £505Free CancellationRating
7.0
3,040 reviews
Search Iberia flights
British AirwaysPriceFrom £542Free CancellationRating
6.7
7,563 reviews
Search British Airways flights
Aer LingusPriceFrom £660Free CancellationRating
7.2
1,387 reviews
Search Aer Lingus flights
KLMPriceFrom £872Free CancellationRating
7.7
1,430 reviews
Search KLM flights

Travelling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Rio Grande
Carolina
Fajardo
Dorado

Why use momondo?

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

Finding the right flight to San Juan from United Kingdom is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

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

Flights from United Kingdom to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to San Juan.

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

Yes momondo offers price alerts on flights to San Juan from United Kingdom. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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