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

JetBlue, American Airlines, and KLM 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.

£150 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.

07:00 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

22h 00m1 stop Orlando

14:00 - 23:13LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

14h 13m1 stop Orlando

£515Multiple Airlines

Mon, 21 Sep - Fri, 2 Oct

19:43 - 06:50SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

31h 07m1 stop Orlando

11:00 - 02:42LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

19h 42m1 stop Orlando

£534Multiple Airlines

Mon, 7 Dec - Thu, 10 Dec

10:42 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

18h 18m1 stop Orlando

14:00 - 01:52LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

16h 52m1 stop Orlando

£552Multiple Airlines

Thu, 1 Oct - Sat, 3 Oct

10:42 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

18h 18m1 stop Orlando

14:00 - 01:52LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

16h 52m1 stop Orlando

£556Multiple Airlines

Thu, 1 Oct - Sat, 3 Oct

17:11 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

35h 49m2 stops Atlanta Hartsfield-Jackson Orlando

09:50 - 01:50LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

20h 00m1 stop Orlando

£557Multiple Airlines

Mon, 19 Oct - Wed, 28 Oct

19:44 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

33h 16m1 stop Orlando

09:50 - 01:50LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

20h 00m1 stop Orlando

£559Multiple Airlines

Mon, 19 Oct - Wed, 28 Oct

07:00 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

22h 00m1 stop Orlando

14:00 - 23:13LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

14h 13m1 stop Orlando

£565Multiple Airlines

Mon, 21 Sep - Thu, 1 Oct

07:00 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

22h 00m1 stop Orlando

14:00 - 01:52LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

16h 52m1 stop Orlando

£566Multiple Airlines

Mon, 21 Sep - Fri, 2 Oct

10:42 - 10:00SJU San Juan Luis Munoz Marin Intl-LGW London Gatwick

18h 18m1 stop Orlando

14:00 - 09:18LGW London Gatwick-SJU San Juan Luis Munoz Marin Intl

24h 18m1 stop Orlando

£568Multiple Airlines

Mon, 5 Oct - Mon, 12 Oct

19:00 - 12:05SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 05m1 stop Miami

10:45 - 20:00LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

13h 15m1 stop Madrid Barajas

£568Iberia

Wed, 24 Feb - Sat, 6 Mar

Cheap last-minute flights

Enter your travel dates to find the best prices.

13:38 - 09:25SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

14h 47m1 stop Miami

10:50 - 18:30LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

12h 40m1 stop Madrid Barajas

£626Iberia

Tue, 8 Sep - Tue, 15 Sep

13:38 - 09:25SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

14h 47m1 stop Miami

10:50 - 18:30LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

12h 40m1 stop Madrid Barajas

£628Iberia

Tue, 8 Sep - Tue, 15 Sep

20:10 - 20:45SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

19h 35m1 stop New York John F Kennedy Intl

08:15 - 19:34LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

16h 19m1 stop New York John F Kennedy Intl

£706JetBlue

Tue, 8 Sep - Thu, 10 Sep

21:55 - 20:45SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

17h 50m1 stop New York John F Kennedy Intl

08:15 - 19:34LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

16h 19m1 stop New York John F Kennedy Intl

£707JetBlue

Sat, 5 Sep - Sat, 12 Sep

20:35 - 06:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

28h 55m1 stop Boston Logan Intl

12:20 - 03:27LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

19h 07m1 stop New York John F Kennedy Intl

£708JetBlue

Fri, 4 Sep - Sat, 27 Feb

16:20 - 10:25SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

13h 05m1 stop Newark

06:50 - 23:50LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

22h 00m2 stops Brussels Bruxelles-National Newark

£714United Airlines

Tue, 8 Sep - Tue, 15 Sep

16:20 - 20:40SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

23h 20m1 stop Newark

06:50 - 11:57LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 07m2 stops Brussels Bruxelles-National Newark

£715United Airlines

Tue, 8 Sep - Tue, 15 Sep

13:16 - 08:50SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

14h 34m1 stop New York John F Kennedy Intl

09:55 - 23:49LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

18h 54m2 stops Amsterdam Schiphol New York John F Kennedy Intl

£715Multiple Airlines

Tue, 8 Sep - Tue, 15 Sep

17:59 - 13:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

14h 16m1 stop Atlanta Hartsfield-Jackson

20:00 - 02:13LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

35h 13m3 stops Madrid Barajas Casablanca Mohamed V Miami

£716Multiple Airlines

Tue, 8 Sep - Tue, 15 Sep

15:28 - 09:25SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

12h 57m1 stop Miami

10:50 - 18:30LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

12h 40m1 stop Madrid Barajas

£717British Airways

Tue, 8 Sep - Tue, 15 Sep

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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

24 Feb

SJU19:00San Juan Luis Munoz Marin Intl

13h 05m

1 stop

LHR12:05London Heathrow

6 Mar

LHR10:45London Heathrow

13h 15m

1 stop

SJU20:00San Juan Luis Munoz Marin Intl

£568

Iberia

7 Dec

SJU15:17San Juan Luis Munoz Marin Intl

16h 48m

1 stop

LHR12:05London Heathrow

10 Dec

LHR11:25London Heathrow

12h 35m

1 stop

SJU20:00San Juan Luis Munoz Marin Intl

£582

Iberia

1 Feb

SJU15:14San Juan Luis Munoz Marin Intl

13h 01m

1 stop

LHR08:15London Heathrow

8 Feb

LHR11:50London Heathrow

14h 47m

1 stop

SJU22:37San Juan Luis Munoz Marin Intl

£593

JetBlue flights from San Juan to United Kingdom

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

JetBlue

5 Nov

SJU07:00San Juan Luis Munoz Marin Intl

19h 55m

1 stop

LHR06:55London Heathrow

9 Nov

LHR08:05London Heathrow

16h 43m

1 stop

SJU20:48San Juan Luis Munoz Marin Intl

£625

JetBlue

22 Sept

SJU10:30San Juan Luis Munoz Marin Intl

18h 00m

1 stop

LHR09:30London Heathrow

4 Oct

LHR08:15London Heathrow

16h 19m

1 stop

SJU19:34San Juan Luis Munoz Marin Intl

£625

JetBlue

14 Jan

SJU06:01San Juan Luis Munoz Marin Intl

20h 54m

1 stop

LHR06:55London Heathrow

24 Jan

LHR08:05London Heathrow

22h 20m

1 stop

SJU02:25San Juan Luis Munoz Marin Intl

£628

momondo Fare Finder

Use the filters below to find and compare flights from San Juan to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Mon 21/9

07:00-10:00

1 stop22h 00m

London Gatwick

Fri 2/10

14:00-23:13

1 stop14h 13m

£515

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Mon 7/12

19:43-06:50

1 stop31h 07m

London Gatwick

Thu 10/12

11:00-02:42

1 stop19h 42m

£534

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Thu 1/10

10:42-10:00

1 stop18h 18m

London Gatwick

Sat 3/10

14:00-01:52

1 stop16h 52m

£552

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Thu 1/10

10:42-10:00

1 stop18h 18m

London Gatwick

Sat 3/10

14:00-01:52

1 stop16h 52m

£556

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Mon 19/10

17:11-10:00

2 stops35h 49m

London Gatwick

Wed 28/10

09:50-01:50

1 stop20h 00m

£557

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Mon 19/10

19:44-10:00

1 stop33h 16m

London Gatwick

Wed 28/10

09:50-01:50

1 stop20h 00m

£559

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Mon 21/9

07:00-10:00

1 stop22h 00m

London Gatwick

Thu 1/10

14:00-23:13

1 stop14h 13m

£565

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Mon 21/9

07:00-10:00

1 stop22h 00m

London Gatwick

Fri 2/10

14:00-01:52

1 stop16h 52m

£566

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Mon 5/10

10:42-10:00

1 stop18h 18m

London Gatwick

Mon 12/10

14:00-09:18

1 stop24h 18m

£568

Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 24/2

19:00-12:05

1 stop13h 05m

London Heathrow

Sat 6/3

10:45-20:00

1 stop13h 15m

£568

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 £448, 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 £466.

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 £687 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 £591 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

Best price found	£150
Fastest flight time	12h 25m
Direct flights	None

The best one-way flight to United Kingdom from San Juan in the past 72 hours is £150. The best return flight deal from San Juan to United Kingdom found on momondo in the last 72 hours is £515.

The fastest flight from San Juan to United Kingdom takes 12h 25m

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.