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Cheap flights from the United Kingdom to San Juan from £253

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 26/4. 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
12:20 - 02:28
LHR
-
SJU
18h 08m
1 stop
JetBlue Logo
14:25 - 06:55
SJU
-
LHR
12h 30m
1 stop
£405JetBlue
Fri, 20 Feb - Sat, 7 Mar
JetBlue Logo
07:25 - 19:53
LHR
-
SJU
16h 28m
1 stop
JetBlue Logo
09:55 - 09:30
SJU
-
LHR
19h 35m
1 stop
£411JetBlue
Tue, 24 Feb - Wed, 11 Mar
JetBlue Logo
12:20 - 00:29
LHR
-
SJU
16h 09m
1 stop
JetBlue Logo
13:25 - 06:55
SJU
-
LHR
13h 30m
1 stop
£414JetBlue
Tue, 24 Feb - Wed, 11 Mar
Aer Lingus Logo
09:35 - 03:51
EDI
-
SJU
22h 16m
2 stops
Aer Lingus Logo
13:25 - 11:30
SJU
-
EDI
18h 05m
2 stops
£889Aer Lingus
Mon, 2 Mar - Mon, 9 Mar
British Airways Logo
06:50 - 23:40
LCY
-
SJU
20h 50m
2 stops
British Airways Logo
06:00 - 18:35
SJU
-
LCY
32h 35m
2 stops
£950British Airways
Thu, 26 Feb - Mon, 2 Mar
British Airways Logo
06:50 - 23:40
LCY
-
SJU
20h 50m
2 stops
British Airways Logo
06:00 - 21:30
SJU
-
LCY
35h 30m
2 stops
£950British Airways
Thu, 26 Feb - Mon, 2 Mar
Iberia Logo
09:10 - 19:55
LCY
-
SJU
14h 45m
1 stop
Iberia Logo
18:10 - 14:05
SJU
-
LCY
15h 55m
1 stop
£984Iberia
Tue, 3 Mar - Tue, 10 Mar
United Airlines Logo
06:00 - 23:36
BHX
-
SJU
21h 36m
2 stops
United Airlines Logo
13:10 - 12:35
SJU
-
BHX
19h 25m
2 stops
£1,577United Airlines
Mon, 16 Mar - Thu, 19 Mar
United Airlines Logo
06:00 - 23:36
BHX
-
SJU
21h 36m
2 stops
United Airlines Logo
07:05 - 12:35
SJU
-
BHX
25h 30m
2 stops
£1,667United Airlines
Mon, 16 Mar - Thu, 19 Mar
Aer Lingus Logo
09:00 - 21:48
NCL
-
SJU
16h 48m
2 stops
Aer Lingus Logo
11:45 - 08:30
SJU
-
NCL
40h 45m
2 stops
£4,254Aer Lingus
Wed, 18 Mar - Thu, 26 Mar

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

Our best British Airways deals on United Kingdom to San Juan Luis Munoz Marin Intl Airport flight tickets
British Airways
26 Feb
LCY06:50London City
20h 50m
2 stops
SJU23:40San Juan Luis Munoz Marin Intl
2 Mar
SJU06:00San Juan Luis Munoz Marin Intl
32h 35m
2 stops
LCY18:35London City
£950
British Airways
26 Feb
LCY06:50London City
20h 50m
2 stops
SJU23:40San Juan Luis Munoz Marin Intl
2 Mar
SJU06:00San Juan Luis Munoz Marin Intl
35h 30m
2 stops
LCY21:30London City
£950
British Airways
16 Feb
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
23 Feb
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
£1,166

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
20 Feb
LHR12:20London Heathrow
18h 08m
1 stop
SJU02:28San Juan Luis Munoz Marin Intl
7 Mar
SJU14:25San Juan Luis Munoz Marin Intl
12h 30m
1 stop
LHR06:55London Heathrow
£405
JetBlue
24 Feb
LHR07:25London Heathrow
16h 28m
1 stop
SJU19:53San Juan Luis Munoz Marin Intl
11 Mar
SJU09:55San Juan Luis Munoz Marin Intl
19h 35m
1 stop
LHR09:30London Heathrow
£411
JetBlue
24 Feb
LHR12:20London Heathrow
16h 09m
1 stop
SJU00:29San Juan Luis Munoz Marin Intl
11 Mar
SJU13:25San Juan Luis Munoz Marin Intl
13h 30m
1 stop
LHR06:55London Heathrow
£414

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 6 February 2026.
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

Fri 20/2

12:20-02:28

1 stop18h 08m

San Juan Luis Munoz Marin Intl

Sat 7/3

14:25-06:55

1 stop12h 30m

£405

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 24/2

07:25-19:53

1 stop16h 28m

San Juan Luis Munoz Marin Intl

Wed 11/3

09:55-09:30

1 stop19h 35m

£411

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 24/2

12:20-00:29

1 stop16h 09m

San Juan Luis Munoz Marin Intl

Wed 11/3

13:25-06:55

1 stop13h 30m

£414

EdinburghSan Juan

EDI - SJU

EDISJU

Edinburgh Turnhouse

Mon 2/3

09:35-03:51

2 stops22h 16m

San Juan Luis Munoz Marin Intl

Mon 9/3

13:25-11:30

2 stops18h 05m

£889

LondonSan Juan

LCY - SJU

LCYSJU

London City

Thu 26/2

06:50-23:40

2 stops20h 50m

San Juan Luis Munoz Marin Intl

Mon 2/3

06:00-18:35

2 stops32h 35m

£950

LondonSan Juan

LCY - SJU

LCYSJU

London City

Thu 26/2

06:50-23:40

2 stops20h 50m

San Juan Luis Munoz Marin Intl

Mon 2/3

06:00-21:30

2 stops35h 30m

£950

LondonSan Juan

LCY - SJU

LCYSJU

London City

Tue 3/3

09:10-19:55

1 stop14h 45m

San Juan Luis Munoz Marin Intl

Tue 10/3

18:10-14:05

1 stop15h 55m

£984

BirminghamSan Juan

BHX - SJU

BHXSJU

Birmingham

Mon 16/3

06:00-23:36

2 stops21h 36m

San Juan Luis Munoz Marin Intl

Thu 19/3

13:10-12:35

2 stops19h 25m

£1,577

BirminghamSan Juan

BHX - SJU

BHXSJU

Birmingham

Mon 16/3

06:00-23:36

2 stops21h 36m

San Juan Luis Munoz Marin Intl

Thu 19/3

07:05-12:35

2 stops25h 30m

£1,667

Newcastle upon TyneSan Juan

NCL - SJU

NCLSJU

Newcastle upon Tyne

Wed 18/3

09:00-21:48

2 stops16h 48m

San Juan Luis Munoz Marin Intl

Thu 26/3

11:45-08:30

2 stops40h 45m

£4,254

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 £541.

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 £644 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 £516 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 49% 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.
Search flight deals

  • 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 £340Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £425Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
FinnairPriceFrom £426Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
IcelandairPriceFrom £499Free CancellationRating
7.1
606 reviews
Search Icelandair flights
British AirwaysPriceFrom £532Free CancellationRating
6.7
7,716 reviews
Search British Airways flights
IberiaPriceFrom £547Free CancellationRating
7.0
3,104 reviews
Search Iberia 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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