What is the cheapest airline that flies from San Juan to United Kingdom?

American Airlines, JetBlue, and United Airlines are the most popular carriers operating from San Juan to United Kingdom

When did momondo last update prices for flights from San Juan to United Kingdom?

Prices for flights from San Juan to United Kingdom are refreshed on a daily basis.

How old do you have to be to fly from San Juan to United Kingdom?

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 San Juan to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£203 Cheap Flights from San Juan to the United Kingdom in 2026

Find the cheapest flights from San Juan to the United Kingdom

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

03:10 - 10:00

SJU

LGW

25h 50m

1 stop

14:00 - 17:43

LGW

SJU

32h 43m

1 stop

£540Multiple Airlines

Sun, 6 Sep - Mon, 21 Sep

03:10 - 10:00

SJU

LGW

25h 50m

1 stop

14:00 - 17:43

LGW

SJU

32h 43m

1 stop

£547Multiple Airlines

Sun, 6 Sep - Mon, 21 Sep

19:42 - 06:00

SJU

LGW

30h 18m

1 stop

12:35 - 08:58

LGW

SJU

24h 23m

1 stop

£552Multiple Airlines

Tue, 3 Nov - Sun, 15 Nov

07:15 - 09:40

SJU

MAN

22h 25m

1 stop

20:40 - 23:13

MAN

SJU

54h 33m

2 stops

£569Virgin Atlantic

Sun, 15 Nov - Sat, 21 Nov

07:15 - 10:05

SJU

MAN

22h 50m

2 stops

20:40 - 23:13

MAN

SJU

54h 33m

2 stops

£572Virgin Atlantic

Sun, 15 Nov - Sat, 21 Nov

07:30 - 07:15

SJU

LHR

18h 45m

1 stop

06:15 - 22:19

LHR

SJU

21h 04m

2 stops

£579Virgin Atlantic

Tue, 1 Sep - Tue, 8 Sep

18:55 - 12:05

SJU

LHR

13h 10m

1 stop

09:45 - 21:27

LHR

SJU

15h 42m

1 stop

£580Iberia

Mon, 16 Nov - Fri, 20 Nov

10:42 - 10:00

SJU

LGW

18h 18m

1 stop

14:00 - 09:35

LGW

SJU

24h 35m

1 stop

£580Multiple Airlines

Sun, 13 Sep - Sun, 27 Sep

18:30 - 20:10

SJU

LHR

21h 40m

1 stop

20:10 - 23:55

LHR

SJU

31h 45m

1 stop

£587Virgin Atlantic

Thu, 26 Nov - Thu, 3 Dec

18:55 - 12:05

SJU

LHR

13h 10m

1 stop

11:25 - 09:38

LHR

SJU

26h 13m

2 stops

£588Iberia

Mon, 16 Nov - Fri, 20 Nov

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Iberia flights from San Juan to United Kingdom

Our best Iberia deals on San Juan to United Kingdom flight tickets

Iberia

16 Nov

SJU18:55San Juan Luis Munoz Marin Intl

13h 10m

1 stop

LHR12:05London Heathrow

20 Nov

LHR09:45London Heathrow

15h 42m

1 stop

SJU21:27San Juan Luis Munoz Marin Intl

£580

Iberia

16 Nov

SJU18:55San Juan Luis Munoz Marin Intl

13h 10m

1 stop

LHR12:05London Heathrow

20 Nov

LHR11:25London Heathrow

26h 13m

2 stops

SJU09:38San Juan Luis Munoz Marin Intl

£588

Iberia

11 Nov

SJU18:55San Juan Luis Munoz Marin Intl

13h 10m

1 stop

LHR12:05London Heathrow

24 Nov

LHR06:05London Heathrow

14h 35m

1 stop

SJU16:40San Juan Luis Munoz Marin Intl

£599

British Airways flights from San Juan to United Kingdom

Our best British Airways deals on San Juan to United Kingdom flight tickets

British Airways

2 Nov

SJU21:35San Juan Luis Munoz Marin Intl

13h 20m

1 stop

LHR14:55London Heathrow

5 Nov

LHR11:25London Heathrow

12h 35m

1 stop

SJU20:00San Juan Luis Munoz Marin Intl

£589

British Airways

11 Nov

SJU21:35San Juan Luis Munoz Marin Intl

13h 45m

1 stop

LHR15:20London Heathrow

24 Nov

LHR07:30London Heathrow

18h 59m

2 stops

SJU22:29San Juan Luis Munoz Marin Intl

£615

British Airways

12 Oct

SJU14:18San Juan Luis Munoz Marin Intl

18h 17m

2 stops

LHR13:35London Heathrow

12 Nov

LHR08:45London Heathrow

19h 14m

2 stops

SJU23:59San Juan Luis Munoz Marin Intl

£623

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sun 6/9

03:10-10:00

1 stop25h 50m

London Gatwick

Mon 21/9

14:00-17:43

1 stop32h 43m

£540

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sun 6/9

03:10-10:00

1 stop25h 50m

London Gatwick

Mon 21/9

14:00-17:43

1 stop32h 43m

£547

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Tue 3/11

19:42-06:00

1 stop30h 18m

London Gatwick

Sun 15/11

12:35-08:58

1 stop24h 23m

£552

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Sun 15/11

07:15-09:40

1 stop22h 25m

Manchester

Sat 21/11

20:40-23:13

2 stops54h 33m

£569

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Sun 15/11

07:15-10:05

2 stops22h 50m

Manchester

Sat 21/11

20:40-23:13

2 stops54h 33m

£572

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 1/9

07:30-07:15

1 stop18h 45m

London Heathrow

Tue 8/9

06:15-22:19

2 stops21h 04m

£579

Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

18:55-12:05

1 stop13h 10m

London Heathrow

Fri 20/11

09:45-21:27

1 stop15h 42m

£580

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sun 13/9

10:42-10:00

1 stop18h 18m

London Gatwick

Sun 27/9

14:00-09:35

1 stop24h 35m

£580

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

18:30-20:10

1 stop21h 40m

London Heathrow

Thu 3/12

20:10-23:55

1 stop31h 45m

£586

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

18:55-12:05

1 stop13h 10m

London Heathrow

Fri 20/11

11:25-09:38

2 stops26h 13m

£588

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Juan to United Kingdom

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

Prices

Airlines

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from San Juan is in February. Flight prices, which tend to average around £456, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from San Juan during the month January is also very affordable. Most momondo users find prices during this month for around £465.

How far in advance should I book a flight from San Juan to the United Kingdom?

You are more likely to see cheaper flights to United Kingdom from San Juan when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £673 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from San Juan for as low as £511 on momondo.

Cheap San Juan to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan to United Kingdom

Fastest flight time	12h 30m
Direct flights	None

The fastest flight from San Juan to United Kingdom takes 12h 30m

There are no direct flights from San Juan to United Kingdom. There are no popular flight routes from San Juan to United Kingdom.

Search flight deals

Frequently asked questions about flying from San Juan to the United Kingdom

When did momondo last update prices for flights from San Juan to United Kingdom?
Prices for flights from San Juan to United Kingdom are refreshed on a daily basis.
How old do you have to be to fly from San Juan to United Kingdom?
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 San Juan to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find San Juan to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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

Flights from San Juan to United Kingdom 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 San Juan to United Kingdom?

momondo helps you find the best flight between San Juan and United Kingdom by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from San Juan to United Kingdom now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United Kingdom and let you know when they change.