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

Aer Lingus, 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.

£173 Cheap Flights from San Juan to the United Kingdom in 2026

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Find the cheapest flights from San Juan to the United Kingdom

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

19:01 - 12:05

SJU

LHR

13h 04m1 stop

11:15 - 22:24

LHR

SJU

15h 09m1 stop

£393Iberia

Fri, 13 Feb - Sat, 21 Feb

19:01 - 12:05

SJU

LHR

13h 04m1 stop

11:55 - 22:24

LHR

SJU

14h 29m1 stop

£394Iberia

Fri, 13 Feb - Sat, 21 Feb

19:01 - 17:00

SJU

EDI

17h 59m2 stops

08:25 - 23:40

EDI

SJU

19h 15m2 stops

£425American Airlines

Fri, 13 Feb - Fri, 20 Feb

14:28 - 10:05

SJU

EDI

15h 37m2 stops

09:00 - 23:56

EDI

SJU

18h 56m2 stops

£426British Airways

Thu, 29 Jan - Sat, 7 Feb

16:52 - 11:15

SJU

LHR

14h 23m1 stop

06:50 - 22:22

LHR

SJU

19h 32m2 stops

£428United Airlines

Sat, 31 Jan - Sun, 8 Feb

15:55 - 16:05

SJU

EDI

20h 10m2 stops

09:30 - 23:12

EDI

SJU

17h 42m2 stops

£428KLM

Tue, 3 Mar - Tue, 10 Mar

13:58 - 10:55

SJU

MAN

16h 57m2 stops

06:15 - 23:56

MAN

SJU

21h 41m2 stops

£429American Airlines

Wed, 14 Jan - Sat, 31 Jan

14:10 - 08:25

SJU

LHR

14h 15m1 stop

08:30 - 13:17

LHR

SJU

32h 47m2 stops

£430United Airlines

Fri, 13 Feb - Sat, 21 Feb

13:14 - 13:10

SJU

MAN

18h 56m2 stops

15:00 - 23:43

MAN

SJU

13h 43m1 stop

£442KLM

Wed, 1 Apr - Thu, 7 May

11:38 - 12:50

SJU

GLA

21h 12m2 stops

08:20 - 23:56

GLA

SJU

19h 36m2 stops

£684British Airways

Wed, 21 Jan - Sun, 25 Jan

Iberia flights from San Juan to United Kingdom

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

Iberia

13 Feb

SJU19:01San Juan Luis Munoz Marin Intl

13h 04m

1 stop

LHR12:05London Heathrow

21 Feb

LHR11:15London Heathrow

15h 09m

1 stop

SJU22:24San Juan Luis Munoz Marin Intl

£393

Find similar

Iberia

13 Feb

SJU14:23San Juan Luis Munoz Marin Intl

14h 12m

1 stop

LHR08:35London Heathrow

21 Feb

LHR11:55London Heathrow

15h 39m

1 stop

SJU23:34San Juan Luis Munoz Marin Intl

£394

Find similar

Iberia

22 Jan

SJU21:25San Juan Luis Munoz Marin Intl

12h 40m

1 stop

LCY14:05London City

29 Jan

LCY07:50London City

16h 05m

1 stop

SJU19:55San Juan Luis Munoz Marin Intl

£701

Find similar

JetBlue flights from San Juan to United Kingdom

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

JetBlue

18 Feb

SJU23:50San Juan Luis Munoz Marin Intl

17h 50m

1 stop

LHR21:40London Heathrow

26 Feb

LHR12:20London Heathrow

16h 09m

1 stop

SJU00:29San Juan Luis Munoz Marin Intl

£436

Find similar

JetBlue

23 Jan

SJU13:40San Juan Luis Munoz Marin Intl

13h 15m

1 stop

LHR06:55London Heathrow

27 Jan

LHR12:20London Heathrow

15h 39m

1 stop

SJU23:59San Juan Luis Munoz Marin Intl

£450

Find similar

JetBlue

17 Apr

SJU23:59San Juan Luis Munoz Marin Intl

15h 46m

1 stop

LHR20:45London Heathrow

27 Apr

LHR08:15London Heathrow

15h 15m

1 stop

SJU18:30San Juan Luis Munoz Marin Intl

£507

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 13/2

19:01-12:05

1 stop13h 04m

London Heathrow

Sat 21/2

11:15-22:24

1 stop15h 09m

£393

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 13/2

19:01-12:05

1 stop13h 04m

London Heathrow

Sat 21/2

11:55-22:24

1 stop14h 29m

£394

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Fri 13/2

19:01-17:00

2 stops17h 59m

Edinburgh Turnhouse

Fri 20/2

08:25-23:40

2 stops19h 15m

£425

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Thu 29/1

14:28-10:05

2 stops15h 37m

Edinburgh Turnhouse

Sat 7/2

09:00-23:56

2 stops18h 56m

£426

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 31/1

16:52-11:15

1 stop14h 23m

London Heathrow

Sun 8/2

06:50-22:22

2 stops19h 32m

£428

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Tue 3/3

15:55-16:05

2 stops20h 10m

Edinburgh Turnhouse

Tue 10/3

09:30-23:12

2 stops17h 42m

£428

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Wed 14/1

13:58-10:55

2 stops16h 57m

Manchester

Sat 31/1

06:15-23:56

2 stops21h 41m

£429

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 13/2

14:10-08:25

1 stop14h 15m

London Heathrow

Sat 21/2

08:30-13:17

2 stops32h 47m

£430

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Wed 1/4

13:14-13:10

2 stops18h 56m

Manchester

Thu 7/5

15:00-23:43

1 stop13h 43m

£442

San JuanGlasgow

SJU - GLA

SJUGLA

San Juan Luis Munoz Marin Intl

Wed 21/1

11:38-12:50

2 stops21h 12m

Glasgow Intl

Sun 25/1

08:20-23:56

2 stops19h 36m

£684

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 £404, 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 £467.

How far in advance should I book a flight to 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 £620 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 £474 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 40m
Direct flights	None

The fastest flight from San Juan to United Kingdom takes 12h 40m

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

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.