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

Delta, Aer Lingus, and British Airways 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.

£188 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.

07:15 - 06:20

SJU

LHR

18h 05m

1 stop

06:15 - 20:24

LHR

SJU

19h 09m

2 stops

£382Virgin Atlantic

Wed, 22 Apr - Wed, 29 Apr

07:15 - 06:20

SJU

LHR

18h 05m

1 stop

09:20 - 20:24

LHR

SJU

16h 04m

1 stop

£396Virgin Atlantic

Wed, 22 Apr - Wed, 29 Apr

05:10 - 21:40

SJU

LHR

12h 30m

1 stop

07:25 - 21:24

LHR

SJU

17h 59m

1 stop

£422JetBlue

Thu, 26 Feb - Wed, 11 Mar

14:44 - 16:05

SJU

EDI

21h 21m

2 stops

05:50 - 23:15

EDI

SJU

21h 25m

2 stops

£424KLM

Mon, 16 Mar - Tue, 24 Mar

07:40 - 10:25

SJU

MAN

21h 45m

2 stops

06:05 - 20:34

MAN

SJU

19h 29m

2 stops

£444United Airlines

Wed, 1 Apr - Fri, 10 Apr

23:59 - 20:45

SJU

LHR

16h 46m

1 stop

09:20 - 20:56

LHR

SJU

15h 36m

1 stop

£444JetBlue

Thu, 5 Mar - Mon, 9 Mar

15:44 - 11:05

SJU

LHR

14h 21m

1 stop

12:30 - 22:05

LHR

SJU

14h 35m

1 stop

£455British Airways

Wed, 22 Apr - Wed, 29 Apr

15:44 - 11:05

SJU

LHR

14h 21m

1 stop

15:00 - 12:29

LHR

SJU

26h 29m

1 stop

£457British Airways

Wed, 22 Apr - Wed, 29 Apr

07:15 - 07:05

SJU

EDI

18h 50m

1 stop

09:00 - 22:17

EDI

SJU

18h 17m

1 stop

£459KLM

Thu, 30 Apr - Wed, 13 May

07:20 - 11:50

SJU

EDI

23h 30m

2 stops

09:40 - 21:24

EDI

SJU

16h 44m

2 stops

£466United Airlines

Thu, 30 Apr - Wed, 13 May

JetBlue flights from San Juan to United Kingdom

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

JetBlue

26 Feb

SJU05:10San Juan Luis Munoz Marin Intl

12h 30m

1 stop

LHR21:40London Heathrow

11 Mar

LHR07:25London Heathrow

17h 59m

1 stop

SJU21:24San Juan Luis Munoz Marin Intl

£422

JetBlue

25 Feb

SJU23:59San Juan Luis Munoz Marin Intl

17h 41m

1 stop

LHR21:40London Heathrow

3 Mar

LHR09:20London Heathrow

19h 38m

1 stop

SJU00:58San Juan Luis Munoz Marin Intl

£444

JetBlue

2 Mar

SJU06:10San Juan Luis Munoz Marin Intl

20h 45m

1 stop

LHR06:55London Heathrow

9 Mar

LHR08:05London Heathrow

22h 49m

1 stop

SJU02:54San Juan Luis Munoz Marin Intl

£459

Air Canada flights from San Juan to United Kingdom

Our best Air Canada deals on San Juan to United Kingdom flight tickets

Air Canada

22 Apr

SJU01:00San Juan Luis Munoz Marin Intl

24h 30m

2 stops

LHR06:30London Heathrow

9 May

LHR14:05London Heathrow

26h 59m

2 stops

SJU12:04San Juan Luis Munoz Marin Intl

£524

Air Canada

18 Feb

SJU02:05San Juan Luis Munoz Marin Intl

25h 05m

2 stops

LHR07:10London Heathrow

23 Feb

LHR13:25London Heathrow

39h 11m

2 stops

SJU00:36San Juan Luis Munoz Marin Intl

£843

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

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 22/4

07:15-06:20

1 stop18h 05m

London Heathrow

Wed 29/4

06:15-20:24

2 stops19h 09m

£382

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 22/4

07:15-06:20

1 stop18h 05m

London Heathrow

Wed 29/4

09:20-20:24

1 stop16h 04m

£396

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/2

05:10-21:40

1 stop12h 30m

London Heathrow

Wed 11/3

07:25-21:24

1 stop17h 59m

£422

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Mon 16/3

14:44-16:05

2 stops21h 21m

Edinburgh Turnhouse

Tue 24/3

05:50-23:15

2 stops21h 25m

£424

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Wed 1/4

07:40-10:25

2 stops21h 45m

Manchester

Fri 10/4

06:05-20:34

2 stops19h 29m

£444

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 5/3

23:59-20:45

1 stop16h 46m

London Heathrow

Mon 9/3

09:20-20:56

1 stop15h 36m

£444

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 22/4

15:44-11:05

1 stop14h 21m

London Heathrow

Wed 29/4

12:30-22:05

1 stop14h 35m

£455

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 22/4

15:44-11:05

1 stop14h 21m

London Heathrow

Wed 29/4

15:00-12:29

1 stop26h 29m

£457

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Thu 30/4

07:15-07:05

1 stop18h 50m

Edinburgh Turnhouse

Wed 13/5

09:00-22:17

1 stop18h 17m

£459

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Thu 30/4

07:20-11:50

2 stops23h 30m

Edinburgh Turnhouse

Wed 13/5

09:40-21:24

2 stops16h 44m

£466

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 £428, 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 £458.

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 £610 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 £518 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

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.