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

American Airlines, United Airlines, and Delta 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.

£204 Cheap Flights from San Juan to the United Kingdom in 2026

Voted winner of Europe's Best Travel App 2023

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.

15:46 - 07:40

SJU

LHR

35h 54m

1 stop

06:50 - 00:36

LHR

SJU

21h 46m

2 stops

£522United Airlines

Tue, 10 Nov - Fri, 13 Nov

15:46 - 07:40

SJU

LHR

35h 54m

1 stop

06:50 - 11:50

LHR

SJU

33h 00m

2 stops

£522United Airlines

Tue, 10 Nov - Fri, 13 Nov

14:06 - 09:20

SJU

EDI

15h 14m

1 stop

09:30 - 23:13

EDI

SJU

17h 43m

2 stops

£541Virgin Atlantic

Tue, 3 Nov - Tue, 17 Nov

18:30 - 20:00

SJU

LHR

21h 30m

1 stop

19:25 - 23:13

LHR

SJU

31h 48m

2 stops

£552Virgin Atlantic

Sat, 14 Nov - Wed, 18 Nov

07:15 - 22:15

SJU

EDI

35h 00m

2 stops

11:15 - 17:20

EDI

SJU

34h 05m

1 stop

£556Virgin Atlantic

Wed, 18 Nov - Wed, 25 Nov

18:42 - 12:05

SJU

LHR

13h 23m

1 stop

07:35 - 16:40

LHR

SJU

13h 05m

1 stop

£572Iberia

Sat, 14 Nov - Wed, 18 Nov

06:15 - 10:00

SJU

LGW

22h 45m

2 stops

11:00 - 01:50

LGW

SJU

18h 50m

1 stop

£590Multiple Airlines

Thu, 1 Oct - Thu, 29 Oct

03:00 - 10:00

SJU

LGW

26h 00m

1 stop

11:00 - 01:50

LGW

SJU

18h 50m

1 stop

£596Multiple Airlines

Wed, 30 Sep - Thu, 29 Oct

14:30 - 09:35

SJU

LGW

14h 05m

1 stop

12:20 - 23:54

LGW

SJU

16h 34m

1 stop

£605JetBlue

Thu, 20 Aug - Wed, 2 Sep

21:35 - 19:00

SJU

LGW

17h 25m

1 stop

11:45 - 20:00

LGW

SJU

12h 15m

1 stop

£609Iberia

Wed, 11 Nov - Tue, 24 Nov

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United Airlines flights from San Juan to United Kingdom

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

United Airlines

10 Nov

SJU15:46San Juan Luis Munoz Marin Intl

35h 54m

1 stop

LHR07:40London Heathrow

13 Nov

LHR06:50London Heathrow

21h 46m

2 stops

SJU00:36San Juan Luis Munoz Marin Intl

£522

United Airlines

10 Nov

SJU15:46San Juan Luis Munoz Marin Intl

35h 54m

1 stop

LHR07:40London Heathrow

13 Nov

LHR06:50London Heathrow

33h 00m

2 stops

SJU11:50San Juan Luis Munoz Marin Intl

£522

United Airlines

11 Nov

SJU08:05San Juan Luis Munoz Marin Intl

19h 05m

2 stops

LHR07:10London Heathrow

24 Nov

LHR06:35London Heathrow

19h 47m

2 stops

SJU22:22San Juan Luis Munoz Marin Intl

£621

Iberia flights from San Juan to United Kingdom

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

Iberia

14 Nov

SJU18:42San Juan Luis Munoz Marin Intl

13h 23m

1 stop

LHR12:05London Heathrow

18 Nov

LHR07:35London Heathrow

13h 05m

1 stop

SJU16:40San Juan Luis Munoz Marin Intl

£572

Iberia

11 Nov

SJU16:37San Juan Luis Munoz Marin Intl

15h 28m

1 stop

LHR12:05London Heathrow

24 Nov

LHR07:30London Heathrow

13h 10m

1 stop

SJU16:40San Juan Luis Munoz Marin Intl

£607

Iberia

11 Nov

SJU21:35San Juan Luis Munoz Marin Intl

17h 25m

1 stop

LGW19:00London Gatwick

24 Nov

LGW11:45London Gatwick

12h 15m

1 stop

SJU20:00San Juan Luis Munoz Marin Intl

£609

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 10/11

15:46-07:40

1 stop35h 54m

London Heathrow

Fri 13/11

06:50-00:36

2 stops21h 46m

£522

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 10/11

15:46-07:40

1 stop35h 54m

London Heathrow

Fri 13/11

06:50-11:50

2 stops33h 00m

£522

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Tue 3/11

14:06-09:20

1 stop15h 14m

Edinburgh Turnhouse

Tue 17/11

09:30-23:13

2 stops17h 43m

£541

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 14/11

18:30-20:00

1 stop21h 30m

London Heathrow

Wed 18/11

19:25-23:13

2 stops31h 48m

£552

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Wed 18/11

07:15-22:15

2 stops35h 00m

Edinburgh Turnhouse

Wed 25/11

11:15-17:20

1 stop34h 05m

£556

Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 14/11

18:42-12:05

1 stop13h 23m

London Heathrow

Wed 18/11

07:35-16:40

1 stop13h 05m

£572

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Thu 1/10

06:15-10:00

2 stops22h 45m

London Gatwick

Thu 29/10

11:00-01:50

1 stop18h 50m

£590

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 30/9

03:00-10:00

1 stop26h 00m

London Gatwick

Thu 29/10

11:00-01:50

1 stop18h 50m

£596

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Thu 20/8

14:30-09:35

1 stop14h 05m

London Gatwick

Wed 2/9

12:20-23:54

1 stop16h 34m

£605

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 11/11

21:35-19:00

1 stop17h 25m

London Gatwick

Tue 24/11

11:45-20:00

1 stop12h 15m

£609

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 October. Flight prices, which tend to average around £76, 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 October, then departing from San Juan during the month September is also very affordable. Most momondo users find prices during this month for around £76.

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 £658 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 £519 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 00m
Direct flights	None

The fastest flight from San Juan to United Kingdom takes 12h 00m

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.