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Cheap flights from the United Kingdom to San Juan from £262

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 7/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
09:20 - 15:04LHR-SJU
33h 44m1 stop
JetBlue Logo
19:20 - 20:45SJU-LHR
21h 25m1 stop
£486JetBlue
Find Deal
Thu, 29 Jan - Wed, 18 Feb
Icelandair Logo
09:20 - 12:44LHR-SJU
31h 24m1 stop
Icelandair Logo
08:05 - 06:55SJU-LHR
18h 50m2 stops
£487Icelandair
Find Deal
Thu, 6 Nov - Sat, 15 Nov
Icelandair Logo
12:20 - 03:48LHR-SJU
19h 28m1 stop
Icelandair Logo
06:27 - 06:55SJU-LHR
20h 28m2 stops
£488Icelandair
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Fri, 7 Nov - Sat, 15 Nov
JetBlue Logo
07:25 - 18:20LHR-SJU
14h 55m1 stop
JetBlue Logo
01:59 - 21:40SJU-LHR
15h 41m1 stop
£493JetBlue
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Tue, 18 Nov - Tue, 25 Nov
Iberia Logo
09:10 - 19:55LCY-SJU
14h 45m1 stop
Iberia Logo
21:25 - 14:05SJU-LCY
12h 40m1 stop
£939Iberia
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Mon, 26 Jan - Thu, 5 Feb
British Airways Logo
10:50 - 00:44GLA-SJU
17h 54m2 stops
British Airways Logo
13:24 - 10:45SJU-GLA
17h 21m2 stops
£953British Airways
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Tue, 2 Dec - Tue, 13 Jan
Iberia Logo
07:50 - 19:55LCY-SJU
16h 05m1 stop
Iberia Logo
21:25 - 14:05SJU-LCY
12h 40m1 stop
£962Iberia
Find Deal
Thu, 29 Jan - Wed, 18 Feb
British Airways Logo
09:10 - 19:55LCY-SJU
14h 45m1 stop
British Airways Logo
21:25 - 14:05SJU-LCY
12h 40m1 stop
£1,002British Airways
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Mon, 26 Jan - Thu, 5 Feb
Virgin Atlantic Logo
06:15 - 12:56NWI-SJU
34h 41m2 stops
Virgin Atlantic Logo
07:15 - 16:25SJU-NWI
29h 10m2 stops
£1,220Virgin Atlantic
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Thu, 13 Nov - Mon, 17 Nov
Virgin Atlantic Logo
06:15 - 23:56NWI-SJU
21h 41m2 stops
Virgin Atlantic Logo
07:15 - 21:10SJU-NWI
33h 55m2 stops
£1,224Virgin Atlantic
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Thu, 13 Nov - Mon, 17 Nov

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

Our best Avianca deals on United Kingdom to San Juan Luis Munoz Marin Intl Airport flight tickets
Avianca
10 Feb
LHR21:40London Heathrow
23h 25m
1 stop
SJU17:05San Juan Luis Munoz Marin Intl
21 Feb
SJU18:30San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR14:35London Heathrow
£521
Find similar
Avianca
14 Apr
LHR22:05London Heathrow
23h 45m
1 stop
SJU16:50San Juan Luis Munoz Marin Intl
20 Apr
SJU18:15San Juan Luis Munoz Marin Intl
16h 20m
1 stop
LHR15:35London Heathrow
£524
Find similar
Avianca
2 Mar
LHR21:40London Heathrow
17h 55m
1 stop
SJU11:35San Juan Luis Munoz Marin Intl
3 Mar
SJU18:30San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR14:35London Heathrow
£528
Find similar

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

Our best Aer Lingus deals on United Kingdom to San Juan Luis Munoz Marin Intl Airport flight tickets
Aer Lingus
6 Mar
MAN14:15Manchester
17h 40m
1 stop
SJU03:55San Juan Luis Munoz Marin Intl
16 Mar
SJU05:00San Juan Luis Munoz Marin Intl
21h 50m
1 stop
MAN06:50Manchester
£646
Find similar
Aer Lingus
28 Feb
MAN14:15Manchester
35h 20m
1 stop
SJU21:35San Juan Luis Munoz Marin Intl
9 Mar
SJU06:20San Juan Luis Munoz Marin Intl
20h 30m
1 stop
MAN06:50Manchester
£649
Find similar
Aer Lingus
6 Mar
MAN14:15Manchester
17h 40m
1 stop
SJU03:55San Juan Luis Munoz Marin Intl
16 Mar
SJU06:20San Juan Luis Munoz Marin Intl
21h 15m
2 stops
MAN07:35Manchester
£657
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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 22 October 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

Thu 29/1

09:20-15:04

1 stop33h 44m

San Juan Luis Munoz Marin Intl

Wed 18/2

19:20-20:45

1 stop21h 25m

£486

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 6/11

09:20-12:44

1 stop31h 24m

San Juan Luis Munoz Marin Intl

Sat 15/11

08:05-06:55

2 stops18h 50m

£487

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Fri 7/11

12:20-03:48

1 stop19h 28m

San Juan Luis Munoz Marin Intl

Sat 15/11

06:27-06:55

2 stops20h 28m

£488

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 18/11

07:25-18:20

1 stop14h 55m

San Juan Luis Munoz Marin Intl

Tue 25/11

01:59-21:40

1 stop15h 41m

£493

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

21:25-14:05

1 stop12h 40m

£939

GlasgowSan Juan

GLA - SJU

GLASJU

Glasgow Intl

Tue 2/12

10:50-00:44

2 stops17h 54m

San Juan Luis Munoz Marin Intl

Tue 13/1

13:24-10:45

2 stops17h 21m

£953

LondonSan Juan

LCY - SJU

LCYSJU

London City

Thu 29/1

07:50-19:55

1 stop16h 05m

San Juan Luis Munoz Marin Intl

Wed 18/2

21:25-14:05

1 stop12h 40m

£962

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

21:25-14:05

1 stop12h 40m

£1,002

NorwichSan Juan

NWI - SJU

NWISJU

Norwich Arpt

Thu 13/11

06:15-12:56

2 stops34h 41m

San Juan Luis Munoz Marin Intl

Mon 17/11

07:15-16:25

2 stops29h 10m

£1,220

NorwichSan Juan

NWI - SJU

NWISJU

Norwich Arpt

Thu 13/11

06:15-23:56

2 stops21h 41m

San Juan Luis Munoz Marin Intl

Mon 17/11

07:15-21:10

2 stops33h 55m

£1,224

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 January instead. Flights to San Juan Luis Munoz Marin Intl Airport in January, while not as cheap as those in September, still average around £547.

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 £532. 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 £648.

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 £588. 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 £840 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 £641 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 £524 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 26% 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

Direct flights

None
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 £333Free CancellationRating
7.5
670 reviews
Search Virgin Atlantic flights
JetBluePriceFrom £439Free CancellationRating
7.2
2,908 reviews
Search JetBlue flights
FinnairPriceFrom £451Free CancellationRating
7.6
1,333 reviews
Search Finnair flights
IcelandairPriceFrom £464Free CancellationRating
7.0
560 reviews
Search Icelandair flights
IberiaPriceFrom £510Free CancellationRating
7.0
2,997 reviews
Search Iberia flights
British AirwaysPriceFrom £540Free CancellationRating
6.7
7,467 reviews
Search British Airways flights
Aer LingusPriceFrom £658Free CancellationRating
7.2
1,350 reviews
Search Aer Lingus flights
KLMPriceFrom £869Free CancellationRating
7.7
1,404 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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